diff options
225 files changed, 2615 insertions, 1845 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index f54273e2ac97..ceb1ff735469 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -210,6 +210,8 @@ local_ops.txt - semantics and behavior of local atomic operations. lockdep-design.txt - documentation on the runtime locking correctness validator. +lockup-watchdogs.txt + - info on soft and hard lockup detectors (aka nmi_watchdog). logo.gif - full colour GIF image of Linux logo (penguin - Tux). logo.txt @@ -240,8 +242,6 @@ netlabel/ - directory with information on the NetLabel subsystem. networking/ - directory with info on various aspects of networking with Linux. -nmi_watchdog.txt - - info on NMI watchdog for SMP systems. nommu-mmap.txt - documentation about no-mmu memory mapping support. numastat.txt diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt index c8e578263ce2..683fde93c4fb 100644 --- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt @@ -93,7 +93,7 @@ Valid values for pin and group names are: With some exceptions, these support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode, nvidia,pull-down-strength, - nvidia,pull-up-strength, nvidia,slew_rate-rising, nvidia,slew_rate-falling. + nvidia,pull-up-strength, nvidia,slew-rate-rising, nvidia,slew-rate-falling. drive_ao1, drive_ao2, drive_at1, drive_at2, drive_cdev1, drive_cdev2, drive_csus, drive_dap1, drive_dap2, drive_dap3, drive_dap4, drive_dbg, diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt index c275b70349c1..6f426ed7009e 100644 --- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt @@ -83,7 +83,7 @@ Valid values for pin and group names are: drive groups: These all support nvidia,pull-down-strength, nvidia,pull-up-strength, - nvidia,slew_rate-rising, nvidia,slew_rate-falling. Most but not all + nvidia,slew-rate-rising, nvidia,slew-rate-falling. Most but not all support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode. ao1, ao2, at1, at2, at3, at4, at5, cdev1, cdev2, cec, crt, csus, dap1, diff --git a/MAINTAINERS b/MAINTAINERS index 027ec2bfa135..f39a82dc0260 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2802,6 +2802,7 @@ F: sound/usb/misc/ua101.c EXTENSIBLE FIRMWARE INTERFACE (EFI) M: Matt Fleming <matt.fleming@intel.com> L: linux-efi@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git S: Maintained F: Documentation/x86/efi-stub.txt F: arch/ia64/kernel/efi.c diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h index 4554ecbff7c6..1f8c72959fb6 100644 --- a/arch/alpha/include/asm/thread_info.h +++ b/arch/alpha/include/asm/thread_info.h @@ -7,6 +7,7 @@ #include <asm/processor.h> #include <asm/types.h> #include <asm/hwrpb.h> +#include <asm/sysinfo.h> #endif #ifndef __ASSEMBLY__ @@ -21,6 +22,7 @@ struct thread_info { mm_segment_t addr_limit; /* thread address space */ unsigned cpu; /* current CPU */ int preempt_count; /* 0 => preemptable, <0 => BUG */ + unsigned int status; /* thread-synchronous flags */ int bpt_nsaved; unsigned long bpt_addr[2]; /* breakpoint handling */ @@ -63,8 +65,6 @@ register struct thread_info *__current_thread_info __asm__("$8"); * - these are process state flags and used from assembly * - pending work-to-be-done flags come first and must be assigned to be * within bits 0 to 7 to fit in and immediate operand. - * - ALPHA_UAC_SHIFT below must be kept consistent with the unaligned - * control flags. * * TIF_SYSCALL_TRACE is known to be 0 via blbs. */ @@ -72,18 +72,12 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_POLLING_NRFLAG 8 /* poll_idle is polling NEED_RESCHED */ #define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */ -#define TIF_UAC_NOPRINT 10 /* ! Preserve sequence of following */ -#define TIF_UAC_NOFIX 11 /* ! flags as they match */ -#define TIF_UAC_SIGBUS 12 /* ! userspace part of 'osf_sysinfo' */ #define TIF_MEMDIE 13 /* is terminating due to OOM killer */ -#define TIF_RESTORE_SIGMASK 14 /* restore signal mask in do_signal */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) /* Work to do on interrupt/exception return. */ @@ -94,29 +88,63 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \ | _TIF_SYSCALL_TRACE) -#define ALPHA_UAC_SHIFT TIF_UAC_NOPRINT -#define ALPHA_UAC_MASK (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \ - 1 << TIF_UAC_SIGBUS) +#define TS_UAC_NOPRINT 0x0001 /* ! Preserve the following three */ +#define TS_UAC_NOFIX 0x0002 /* ! flags as they match */ +#define TS_UAC_SIGBUS 0x0004 /* ! userspace part of 'osf_sysinfo' */ +#define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */ +#define TS_POLLING 0x0010 /* idle task polling need_resched, + skip sending interrupt */ -#define SET_UNALIGN_CTL(task,value) ({ \ - task_thread_info(task)->flags = ((task_thread_info(task)->flags & \ - ~ALPHA_UAC_MASK) \ - | (((value) << ALPHA_UAC_SHIFT) & (1<<TIF_UAC_NOPRINT))\ - | (((value) << (ALPHA_UAC_SHIFT + 1)) & (1<<TIF_UAC_SIGBUS)) \ - | (((value) << (ALPHA_UAC_SHIFT - 1)) & (1<<TIF_UAC_NOFIX)));\ +#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) + +#ifndef __ASSEMBLY__ +#define HAVE_SET_RESTORE_SIGMASK 1 +static inline void set_restore_sigmask(void) +{ + struct thread_info *ti = current_thread_info(); + ti->status |= TS_RESTORE_SIGMASK; + WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags)); +} +static inline void clear_restore_sigmask(void) +{ + current_thread_info()->status &= ~TS_RESTORE_SIGMASK; +} +static inline bool test_restore_sigmask(void) +{ + return current_thread_info()->status & TS_RESTORE_SIGMASK; +} +static inline bool test_and_clear_restore_sigmask(void) +{ + struct thread_info *ti = current_thread_info(); + if (!(ti->status & TS_RESTORE_SIGMASK)) + return false; + ti->status &= ~TS_RESTORE_SIGMASK; + return true; +} +#endif + +#define SET_UNALIGN_CTL(task,value) ({ \ + __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \ + if (value & PR_UNALIGN_NOPRINT) \ + status |= TS_UAC_NOPRINT; \ + if (value & PR_UNALIGN_SIGBUS) \ + status |= TS_UAC_SIGBUS; \ + if (value & 4) /* alpha-specific */ \ + status |= TS_UAC_NOFIX; \ + task_thread_info(task)->status = status; \ 0; }) #define GET_UNALIGN_CTL(task,value) ({ \ - put_user((task_thread_info(task)->flags & (1 << TIF_UAC_NOPRINT))\ - >> ALPHA_UAC_SHIFT \ - | (task_thread_info(task)->flags & (1 << TIF_UAC_SIGBUS))\ - >> (ALPHA_UAC_SHIFT + 1) \ - | (task_thread_info(task)->flags & (1 << TIF_UAC_NOFIX))\ - >> (ALPHA_UAC_SHIFT - 1), \ - (int __user *)(value)); \ + __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \ + __u32 res = 0; \ + if (status & TS_UAC_NOPRINT) \ + res |= PR_UNALIGN_NOPRINT; \ + if (status & TS_UAC_SIGBUS) \ + res |= PR_UNALIGN_SIGBUS; \ + if (status & TS_UAC_NOFIX) \ + res |= 4; \ + put_user(res, (int __user *)(value)); \ }) -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ALPHA_THREAD_INFO_H */ diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 9eb090582cf1..1e6956a90608 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -793,8 +793,7 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, case GSI_UACPROC: if (nbytes < sizeof(unsigned int)) return -EINVAL; - w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) & - UAC_BITMASK; + w = current_thread_info()->status & UAC_BITMASK; if (put_user(w, (unsigned int __user *)buffer)) return -EFAULT; return 1; @@ -904,24 +903,20 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, break; case SSI_NVPAIRS: { - unsigned long v, w, i; - unsigned int old, new; + unsigned __user *p = buffer; + unsigned i; - for (i = 0; i < nbytes; ++i) { + for (i = 0, p = buffer; i < nbytes; ++i, p += 2) { + unsigned v, w, status; - if (get_user(v, 2*i + (unsigned int __user *)buffer)) - return -EFAULT; - if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer)) + if (get_user(v, p) || get_user(w, p + 1)) return -EFAULT; switch (v) { case SSIN_UACPROC: - again: - old = current_thread_info()->flags; - new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT); - new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT; - if (cmpxchg(¤t_thread_info()->flags, - old, new) != old) - goto again; + w &= UAC_BITMASK; + status = current_thread_info()->status; + status = (status & ~UAC_BITMASK) | w; + current_thread_info()->status = status; break; default: diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 4054e0ffe2b2..51987dcf79b8 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -49,7 +49,7 @@ EXPORT_SYMBOL(pm_power_off); void cpu_idle(void) { - set_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status |= TS_POLLING; while (1) { /* FIXME -- EV6 and LCA45 know how to power down diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 80d987c0e9aa..272666d006df 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -780,17 +780,17 @@ do_entUnaUser(void __user * va, unsigned long opcode, /* Check the UAC bits to decide what the user wants us to do with the unaliged access. */ - if (!test_thread_flag (TIF_UAC_NOPRINT)) { + if (!(current_thread_info()->status & TS_UAC_NOPRINT)) { if (__ratelimit(&ratelimit)) { printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n", current->comm, task_pid_nr(current), regs->pc - 4, va, opcode, reg); } } - if (test_thread_flag (TIF_UAC_SIGBUS)) + if ((current_thread_info()->status & TS_UAC_SIGBUS)) goto give_sigbus; /* Not sure why you'd want to use this, but... */ - if (test_thread_flag (TIF_UAC_NOFIX)) + if ((current_thread_info()->status & TS_UAC_NOFIX)) return; /* Don't bother reading ds in the access check since we already diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 73067efd4845..ade7e924bef5 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1603,8 +1603,8 @@ config NR_CPUS default "4" config HOTPLUG_CPU - bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" - depends on SMP && HOTPLUG && EXPERIMENTAL + bool "Support for hot-pluggable CPUs" + depends on SMP && HOTPLUG help Say Y here to experiment with turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. @@ -1645,8 +1645,8 @@ config HZ default 100 config THUMB2_KERNEL - bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)" - depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL + bool "Compile the kernel in Thumb-2 mode" + depends on CPU_V7 && !CPU_V6 && !CPU_V6K select AEABI select ARM_ASM_UNIFIED select ARM_UNWIND @@ -1850,6 +1850,7 @@ config XEN_DOM0 config XEN bool "Xen guest support on ARM (EXPERIMENTAL)" depends on EXPERIMENTAL && ARM && OF + depends on CPU_V7 && !CPU_V6 help Say Y if you want to run Linux in a Virtual Machine on Xen on ARM. diff --git a/arch/arm/Makefile b/arch/arm/Makefile index f023e3acdfbd..5f914fca911b 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -21,8 +21,6 @@ endif OBJCOPYFLAGS :=-O binary -R .comment -S GZFLAGS :=-9 #KBUILD_CFLAGS +=-pipe -# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: -KBUILD_CFLAGS +=$(call cc-option,-marm,) # Never generate .eh_frame KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) @@ -105,17 +103,20 @@ endif ifeq ($(CONFIG_THUMB2_KERNEL),y) AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) -CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) -AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb +CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) +AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb # Work around buggy relocation from gas if requested: ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) CFLAGS_MODULE +=-fno-optimize-sibling-calls endif +else +CFLAGS_ISA :=$(call cc-option,-marm,) +AFLAGS_ISA :=$(CFLAGS_ISA) endif # Need -Uarm for gcc < 3.x -KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm -KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float +KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm +KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float CHECKFLAGS += -D__arm__ diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 3fdab016aa5c..f2aa09eb658e 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y) $(obj)/xipImage: vmlinux FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' + $(kecho) ' Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))' $(obj)/Image $(obj)/zImage: FORCE @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)' @@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE $(obj)/Image: vmlinux FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' + $(kecho) ' Kernel: $@ is ready' $(obj)/compressed/vmlinux: $(obj)/Image FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' + $(kecho) ' Kernel: $@ is ready' endif @@ -90,7 +90,7 @@ fi $(obj)/uImage: $(obj)/zImage FORCE @$(check_for_multiple_loadaddr) $(call if_changed,uimage) - @echo ' Image $@ is ready' + $(kecho) ' Image $@ is ready' $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(Q)$(MAKE) $(build)=$(obj)/bootp $@ @@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE $(obj)/bootpImage: $(obj)/bootp/bootp FORCE $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' + $(kecho) ' Kernel: $@ is ready' PHONY += initrd FORCE initrd: diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h index 59426a4595c9..e847d23351ed 100644 --- a/arch/arm/include/asm/flat.h +++ b/arch/arm/include/asm/flat.h @@ -8,7 +8,7 @@ #define flat_argvp_envp_on_stack() 1 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -#define flat_get_addr_from_rp(rp, relval, flags, persistent) get_unaligned(rp) +#define flat_get_addr_from_rp(rp, relval, flags, persistent) ((void)persistent,get_unaligned(rp)) #define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp) #define flat_get_relocate_addr(rel) (rel) #define flat_set_persistent(relval, p) 0 diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 77bd79f2ffdb..7e1f76027f66 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -200,8 +200,8 @@ extern int __put_user_8(void *, unsigned long long); #define USER_DS KERNEL_DS #define segment_eq(a,b) (1) -#define __addr_ok(addr) (1) -#define __range_ok(addr,size) (0) +#define __addr_ok(addr) ((void)(addr),1) +#define __range_ok(addr,size) ((void)(addr),0) #define get_fs() (KERNEL_DS) static inline void set_fs(mm_segment_t fs) diff --git a/arch/arm/include/asm/xen/interface.h b/arch/arm/include/asm/xen/interface.h index ae05e56dd17d..5000397134b4 100644 --- a/arch/arm/include/asm/xen/interface.h +++ b/arch/arm/include/asm/xen/interface.h @@ -29,16 +29,22 @@ #ifndef __ASSEMBLY__ /* Explicitly size integers that represent pfns in the interface with - * Xen so that we can have one ABI that works for 32 and 64 bit guests. */ + * Xen so that we can have one ABI that works for 32 and 64 bit guests. + * Note that this means that the xen_pfn_t type may be capable of + * representing pfn's which the guest cannot represent in its own pfn + * type. However since pfn space is controlled by the guest this is + * fine since it simply wouldn't be able to create any sure pfns in + * the first place. + */ typedef uint64_t xen_pfn_t; +#define PRI_xen_pfn "llx" typedef uint64_t xen_ulong_t; +#define PRI_xen_ulong "llx" /* Guest handles for primitive C types. */ __DEFINE_GUEST_HANDLE(uchar, unsigned char); __DEFINE_GUEST_HANDLE(uint, unsigned int); -__DEFINE_GUEST_HANDLE(ulong, unsigned long); DEFINE_GUEST_HANDLE(char); DEFINE_GUEST_HANDLE(int); -DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); DEFINE_GUEST_HANDLE(uint64_t); DEFINE_GUEST_HANDLE(uint32_t); diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h index 174202318dff..c6b9096cef95 100644 --- a/arch/arm/include/asm/xen/page.h +++ b/arch/arm/include/asm/xen/page.h @@ -10,7 +10,7 @@ #include <xen/interface/grant_table.h> #define pfn_to_mfn(pfn) (pfn) -#define phys_to_machine_mapping_valid (1) +#define phys_to_machine_mapping_valid(pfn) (1) #define mfn_to_pfn(mfn) (mfn) #define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT)) @@ -30,6 +30,8 @@ typedef struct xpaddr { #define XMADDR(x) ((xmaddr_t) { .maddr = (x) }) #define XPADDR(x) ((xpaddr_t) { .paddr = (x) }) +#define INVALID_P2M_ENTRY (~0UL) + static inline xmaddr_t phys_to_machine(xpaddr_t phys) { unsigned offset = phys.paddr & ~PAGE_MASK; @@ -74,9 +76,14 @@ static inline int m2p_remove_override(struct page *page, bool clear_pte) return 0; } +static inline bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn) +{ + BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY); + return true; +} + static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn) { - BUG(); - return false; + return __set_phys_to_machine(pfn, mfn); } #endif /* _ASM_ARM_XEN_PAGE_H */ diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 16cedb42c0c3..896165096d6a 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -34,6 +34,7 @@ #include <linux/list.h> #include <linux/kallsyms.h> #include <linux/proc_fs.h> +#include <linux/export.h> #include <asm/exception.h> #include <asm/mach/arch.h> @@ -109,6 +110,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags) /* Order is clear bits in "clr" then set bits in "set" */ irq_modify_status(irq, clr, set & ~clr); } +EXPORT_SYMBOL_GPL(set_irq_flags); void __init init_IRQ(void) { diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c index 38c1a3b103a0..839312905067 100644 --- a/arch/arm/kernel/kprobes-test-arm.c +++ b/arch/arm/kernel/kprobes-test-arm.c @@ -366,7 +366,9 @@ void kprobe_arm_test_cases(void) TEST_UNSUPPORTED(".word 0xe04f0392 @ umaal r0, pc, r2, r3") TEST_UNSUPPORTED(".word 0xe0500090 @ undef") TEST_UNSUPPORTED(".word 0xe05fff9f @ undef") +#endif +#if __LINUX_ARM_ARCH__ >= 7 TEST_RRR( "mls r0, r",1, VAL1,", r",2, VAL2,", r",3, VAL3,"") TEST_RRR( "mlshi r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"") TEST_RR( "mls lr, r",1, VAL2,", r",2, VAL3,", r13") @@ -456,6 +458,8 @@ void kprobe_arm_test_cases(void) TEST_UNSUPPORTED(".word 0xe1700090") /* Unallocated space */ #if __LINUX_ARM_ARCH__ >= 6 TEST_UNSUPPORTED("ldrex r2, [sp]") +#endif +#if (__LINUX_ARM_ARCH__ >= 7) || defined(CONFIG_CPU_32v6K) TEST_UNSUPPORTED("strexd r0, r2, r3, [sp]") TEST_UNSUPPORTED("ldrexd r2, r3, [sp]") TEST_UNSUPPORTED("strexb r0, r2, [sp]") diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index e29c3337ca81..8ef8c9337809 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -45,10 +45,9 @@ int machine_kexec_prepare(struct kimage *image) for (i = 0; i < image->nr_segments; i++) { current_segment = &image->segment[i]; - err = memblock_is_region_memory(current_segment->mem, - current_segment->memsz); - if (err) - return - EINVAL; + if (!memblock_is_region_memory(current_segment->mem, + current_segment->memsz)) + return -EINVAL; err = get_user(header, (__be32*)current_segment->buf); if (err) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 93971b1a4f0b..53c0304b734a 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -96,6 +96,10 @@ armpmu_event_set_period(struct perf_event *event, s64 period = hwc->sample_period; int ret = 0; + /* The period may have been changed by PERF_EVENT_IOC_PERIOD */ + if (unlikely(period != hwc->last_period)) + left = period - (hwc->last_period - left); + if (unlikely(left <= -period)) { left = period; local64_set(&hwc->period_left, left); diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 8e20754dd31d..fbc8b2623d82 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -294,18 +294,24 @@ static void percpu_timer_setup(void); asmlinkage void __cpuinit secondary_start_kernel(void) { struct mm_struct *mm = &init_mm; - unsigned int cpu = smp_processor_id(); + unsigned int cpu; + + /* + * The identity mapping is uncached (strongly ordered), so + * switch away from it before attempting any exclusive accesses. + */ + cpu_switch_mm(mm->pgd, mm); + enter_lazy_tlb(mm, current); + local_flush_tlb_all(); /* * All kernel threads share the same mm context; grab a * reference and switch to it. */ + cpu = smp_processor_id(); atomic_inc(&mm->mm_count); current->active_mm = mm; cpumask_set_cpu(cpu, mm_cpumask(mm)); - cpu_switch_mm(mm->pgd, mm); - enter_lazy_tlb(mm, current); - local_flush_tlb_all(); printk("CPU%u: Booted secondary processor\n", cpu); diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index e1f906989bb8..b22d700fea27 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -42,10 +42,10 @@ static void twd_set_mode(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - /* timer load already set up */ ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE | TWD_TIMER_CONTROL_PERIODIC; - __raw_writel(twd_timer_rate / HZ, twd_base + TWD_TIMER_LOAD); + __raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ), + twd_base + TWD_TIMER_LOAD); break; case CLOCK_EVT_MODE_ONESHOT: /* period set, and timer enabled in 'next_event' hook */ diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c index 9d0a30032d7f..0dc53854a5d8 100644 --- a/arch/arm/lib/delay.c +++ b/arch/arm/lib/delay.c @@ -45,6 +45,7 @@ int read_current_timer(unsigned long *timer_val) *timer_val = delay_timer->read_current_timer(); return 0; } +EXPORT_SYMBOL_GPL(read_current_timer); static void __timer_delay(unsigned long cycles) { diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index b9f60ebe3bc4..023f443784ec 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -856,8 +856,10 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs) if (thumb2_32b) { offset.un = 0; handler = do_alignment_t32_to_handler(&instr, regs, &offset); - } else + } else { + offset.un = 0; handler = do_alignment_ldmstm; + } break; default: diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 477a2d23ddf1..58bc3e4d3bd0 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -610,7 +610,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, pgprot_t prot, bool is_coherent, const void *caller) { u64 mask = get_coherent_dma_mask(dev); - struct page *page; + struct page *page = NULL; void *addr; #ifdef CONFIG_DMA_API_DEBUG diff --git a/arch/arm/mm/vmregion.h b/arch/arm/mm/vmregion.h index bf312c354a21..0f5a5f2a2c7b 100644 --- a/arch/arm/mm/vmregion.h +++ b/arch/arm/mm/vmregion.h @@ -17,7 +17,6 @@ struct arm_vmregion { struct list_head vm_list; unsigned long vm_start; unsigned long vm_end; - void *priv; int vm_active; const void *caller; }; diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile index 635cb1865e4d..cd60a81163e9 100644 --- a/arch/arm/tools/Makefile +++ b/arch/arm/tools/Makefile @@ -5,6 +5,6 @@ # include/generated/mach-types.h: $(src)/gen-mach-types $(src)/mach-types - @echo ' Generating $@' + $(kecho) ' Generating $@' @mkdir -p $(dir $@) $(Q)$(AWK) -f $^ > $@ || { rm -f $@; /bin/false; } diff --git a/arch/arm/xen/grant-table.c b/arch/arm/xen/grant-table.c index dbd1330c0196..859a9bb002d5 100644 --- a/arch/arm/xen/grant-table.c +++ b/arch/arm/xen/grant-table.c @@ -33,7 +33,7 @@ #include <xen/page.h> #include <xen/grant_table.h> -int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes, +int arch_gnttab_map_shared(xen_pfn_t *frames, unsigned long nr_gframes, unsigned long max_nr_gframes, void **__shared) { diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild index 4a159da23633..dd02f09b6eda 100644 --- a/arch/ia64/include/asm/Kbuild +++ b/arch/ia64/include/asm/Kbuild @@ -1,3 +1,4 @@ generic-y += clkdev.h generic-y += exec.h +generic-y += kvm_para.h diff --git a/arch/ia64/include/asm/kvm_para.h b/arch/ia64/include/asm/kvm_para.h deleted file mode 100644 index 47c00f910434..000000000000 --- a/arch/ia64/include/asm/kvm_para.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * Copyright (C) 2007 Xiantao Zhang <xiantao.zhang@intel.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * - */ -#ifndef __IA64_KVM_PARA_H -#define __IA64_KVM_PARA_H - -#include <uapi/asm/kvm_para.h> - - -static inline unsigned int kvm_arch_para_features(void) -{ - return 0; -} - -static inline bool kvm_check_and_clear_guest_paused(void) -{ - return false; -} - -#endif diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index ecb540810ab3..88fa3ac86fae 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -1,5 +1,3 @@ -include include/asm-generic/Kbuild.asm -header-y += cachectl.h generic-y += bitsperlong.h generic-y += clkdev.h diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h index 5e08b597f012..0f717045bdde 100644 --- a/arch/m68k/include/asm/ptrace.h +++ b/arch/m68k/include/asm/ptrace.h @@ -1,82 +1,10 @@ #ifndef _M68K_PTRACE_H #define _M68K_PTRACE_H -#define PT_D1 0 -#define PT_D2 1 -#define PT_D3 2 -#define PT_D4 3 -#define PT_D5 4 -#define PT_D6 5 -#define PT_D7 6 -#define PT_A0 7 -#define PT_A1 8 -#define PT_A2 9 -#define PT_A3 10 -#define PT_A4 11 -#define PT_A5 12 -#define PT_A6 13 -#define PT_D0 14 -#define PT_USP 15 -#define PT_ORIG_D0 16 -#define PT_SR 17 -#define PT_PC 18 +#include <uapi/asm/ptrace.h> #ifndef __ASSEMBLY__ -/* this struct defines the way the registers are stored on the - stack during a system call. */ - -struct pt_regs { - long d1; - long d2; - long d3; - long d4; - long d5; - long a0; - long a1; - long a2; - long d0; - long orig_d0; - long stkadj; -#ifdef CONFIG_COLDFIRE - unsigned format : 4; /* frame format specifier */ - unsigned vector : 12; /* vector offset */ - unsigned short sr; - unsigned long pc; -#else - unsigned short sr; - unsigned long pc; - unsigned format : 4; /* frame format specifier */ - unsigned vector : 12; /* vector offset */ -#endif -}; - -/* - * This is the extended stack used by signal handlers and the context - * switcher: it's pushed after the normal "struct pt_regs". - */ -struct switch_stack { - unsigned long d6; - unsigned long d7; - unsigned long a3; - unsigned long a4; - unsigned long a5; - unsigned long a6; - unsigned long retpc; -}; - -/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ -#define PTRACE_GETREGS 12 -#define PTRACE_SETREGS 13 -#define PTRACE_GETFPREGS 14 -#define PTRACE_SETFPREGS 15 - -#define PTRACE_GET_THREAD_AREA 25 - -#define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */ - -#ifdef __KERNEL__ - #ifndef PS_S #define PS_S (0x2000) #define PS_M (0x1000) @@ -94,6 +22,5 @@ struct switch_stack { #define arch_has_block_step() (1) #endif -#endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _M68K_PTRACE_H */ diff --git a/arch/m68k/include/asm/setup.h b/arch/m68k/include/asm/setup.h index 00c2c5397d37..65e78a2dad64 100644 --- a/arch/m68k/include/asm/setup.h +++ b/arch/m68k/include/asm/setup.h @@ -19,33 +19,12 @@ ** Redesign of the boot information structure; moved boot information ** structure to bootinfo.h */ - #ifndef _M68K_SETUP_H #define _M68K_SETUP_H +#include <uapi/asm/setup.h> - /* - * Linux/m68k Architectures - */ - -#define MACH_AMIGA 1 -#define MACH_ATARI 2 -#define MACH_MAC 3 -#define MACH_APOLLO 4 -#define MACH_SUN3 5 -#define MACH_MVME147 6 -#define MACH_MVME16x 7 -#define MACH_BVME6000 8 -#define MACH_HP300 9 -#define MACH_Q40 10 -#define MACH_SUN3X 11 -#define MACH_M54XX 12 - -#define COMMAND_LINE_SIZE 256 - -#ifdef __KERNEL__ - #define CL_SIZE COMMAND_LINE_SIZE #ifndef __ASSEMBLY__ @@ -194,63 +173,6 @@ extern unsigned long m68k_machtype; # define MACH_TYPE (m68k_machtype) #endif -#endif /* __KERNEL__ */ - - - /* - * CPU, FPU and MMU types - * - * Note: we may rely on the following equalities: - * - * CPU_68020 == MMU_68851 - * CPU_68030 == MMU_68030 - * CPU_68040 == FPU_68040 == MMU_68040 - * CPU_68060 == FPU_68060 == MMU_68060 - */ - -#define CPUB_68020 0 -#define CPUB_68030 1 -#define CPUB_68040 2 -#define CPUB_68060 3 -#define CPUB_COLDFIRE 4 - -#define CPU_68020 (1<<CPUB_68020) -#define CPU_68030 (1<<CPUB_68030) -#define CPU_68040 (1<<CPUB_68040) -#define CPU_68060 (1<<CPUB_68060) -#define CPU_COLDFIRE (1<<CPUB_COLDFIRE) - -#define FPUB_68881 0 -#define FPUB_68882 1 -#define FPUB_68040 2 /* Internal FPU */ -#define FPUB_68060 3 /* Internal FPU */ -#define FPUB_SUNFPA 4 /* Sun-3 FPA */ -#define FPUB_COLDFIRE 5 /* ColdFire FPU */ - -#define FPU_68881 (1<<FPUB_68881) -#define FPU_68882 (1<<FPUB_68882) -#define FPU_68040 (1<<FPUB_68040) -#define FPU_68060 (1<<FPUB_68060) -#define FPU_SUNFPA (1<<FPUB_SUNFPA) -#define FPU_COLDFIRE (1<<FPUB_COLDFIRE) - -#define MMUB_68851 0 -#define MMUB_68030 1 /* Internal MMU */ -#define MMUB_68040 2 /* Internal MMU */ -#define MMUB_68060 3 /* Internal MMU */ -#define MMUB_APOLLO 4 /* Custom Apollo */ -#define MMUB_SUN3 5 /* Custom Sun-3 */ -#define MMUB_COLDFIRE 6 /* Internal MMU */ - -#define MMU_68851 (1<<MMUB_68851) -#define MMU_68030 (1<<MMUB_68030) -#define MMU_68040 (1<<MMUB_68040) -#define MMU_68060 (1<<MMUB_68060) -#define MMU_SUN3 (1<<MMUB_SUN3) -#define MMU_APOLLO (1<<MMUB_APOLLO) -#define MMU_COLDFIRE (1<<MMUB_COLDFIRE) - -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ extern unsigned long m68k_cputype; @@ -385,6 +307,4 @@ extern int m68k_realnum_memory; /* real # of memory blocks found */ extern struct mem_info m68k_memory[NUM_MEMINFO];/* memory description */ #endif -#endif /* __KERNEL__ */ - #endif /* _M68K_SETUP_H */ diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h index 60e88660169c..67e489d8d1bd 100644 --- a/arch/m68k/include/asm/signal.h +++ b/arch/m68k/include/asm/signal.h @@ -1,12 +1,8 @@ #ifndef _M68K_SIGNAL_H #define _M68K_SIGNAL_H -#include <linux/types.h> +#include <uapi/asm/signal.h> -/* Avoid too many header ordering problems. */ -struct siginfo; - -#ifdef __KERNEL__ /* Most things should be clean enough to redefine this at will, if care is taken to make libc match. */ @@ -20,92 +16,6 @@ typedef struct { unsigned long sig[_NSIG_WORDS]; } sigset_t; -#else -/* Here we must cater to libcs that poke about in kernel headers. */ - -#define NSIG 32 -typedef unsigned long sigset_t; - -#endif /* __KERNEL__ */ - -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGBUS 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGUSR1 10 -#define SIGSEGV 11 -#define SIGUSR2 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGSTKFLT 16 -#define SIGCHLD 17 -#define SIGCONT 18 -#define SIGSTOP 19 -#define SIGTSTP 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGURG 23 -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGIO 29 -#define SIGPOLL SIGIO -/* -#define SIGLOST 29 -*/ -#define SIGPWR 30 -#define SIGSYS 31 -#define SIGUNUSED 31 - -/* These should not be considered constants from userland. */ -#define SIGRTMIN 32 -#define SIGRTMAX _NSIG - -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - -/* - * sigaltstack controls - */ -#define SS_ONSTACK 1 -#define SS_DISABLE 2 - -#define MINSIGSTKSZ 2048 -#define SIGSTKSZ 8192 - -#include <asm-generic/signal-defs.h> - -#ifdef __KERNEL__ struct old_sigaction { __sighandler_t sa_handler; old_sigset_t sa_mask; @@ -123,31 +33,6 @@ struct sigaction { struct k_sigaction { struct sigaction sa; }; -#else -/* Here we must cater to libcs that poke about in kernel headers. */ - -struct sigaction { - union { - __sighandler_t _sa_handler; - void (*_sa_sigaction)(int, struct siginfo *, void *); - } _u; - sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -}; - -#define sa_handler _u._sa_handler -#define sa_sigaction _u._sa_sigaction - -#endif /* __KERNEL__ */ - -typedef struct sigaltstack { - void __user *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - -#ifdef __KERNEL__ #include <asm/sigcontext.h> #ifndef CONFIG_CPU_HAS_NO_BITFIELDS @@ -208,5 +93,4 @@ struct pt_regs; extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie); #endif /* __uClinux__ */ -#endif /* __KERNEL__ */ #endif /* _M68K_SIGNAL_H */ diff --git a/arch/m68k/include/asm/termios.h b/arch/m68k/include/asm/termios.h index 0823032e4045..ad8efb098663 100644 --- a/arch/m68k/include/asm/termios.h +++ b/arch/m68k/include/asm/termios.h @@ -1,27 +1,8 @@ #ifndef _M68K_TERMIOS_H #define _M68K_TERMIOS_H -#include <asm/termbits.h> -#include <asm/ioctls.h> +#include <uapi/asm/termios.h> -struct winsize { - unsigned short ws_row; - unsigned short ws_col; - unsigned short ws_xpixel; - unsigned short ws_ypixel; -}; - -#define NCC 8 -struct termio { - unsigned short c_iflag; /* input mode flags */ - unsigned short c_oflag; /* output mode flags */ - unsigned short c_cflag; /* control mode flags */ - unsigned short c_lflag; /* local mode flags */ - unsigned char c_line; /* line discipline */ - unsigned char c_cc[NCC]; /* control characters */ -}; - -#ifdef __KERNEL__ /* intr=^C quit=^| erase=del kill=^U eof=^D vtime=\0 vmin=\1 sxtc=\0 start=^Q stop=^S susp=^Z eol=\0 @@ -29,27 +10,6 @@ struct termio { eol2=\0 */ #define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" -#endif - -/* modem lines */ -#define TIOCM_LE 0x001 -#define TIOCM_DTR 0x002 -#define TIOCM_RTS 0x004 -#define TIOCM_ST 0x008 -#define TIOCM_SR 0x010 -#define TIOCM_CTS 0x020 -#define TIOCM_CAR 0x040 -#define TIOCM_RNG 0x080 -#define TIOCM_DSR 0x100 -#define TIOCM_CD TIOCM_CAR -#define TIOCM_RI TIOCM_RNG -#define TIOCM_OUT1 0x2000 -#define TIOCM_OUT2 0x4000 -#define TIOCM_LOOP 0x8000 - -/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ - -#ifdef __KERNEL__ /* * Translate a "termio" structure into a "termios". Ugh. @@ -87,6 +47,4 @@ struct termio { #define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) #define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) -#endif /* __KERNEL__ */ - #endif /* _M68K_TERMIOS_H */ diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index c702ad716791..5fc7f7bec1c8 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -1,361 +1,10 @@ #ifndef _ASM_M68K_UNISTD_H_ #define _ASM_M68K_UNISTD_H_ -/* - * This file contains the system call numbers. - */ - -#define __NR_restart_syscall 0 -#define __NR_exit 1 -#define __NR_fork 2 -#define __NR_read 3 -#define __NR_write 4 -#define __NR_open 5 -#define __NR_close 6 -#define __NR_waitpid 7 -#define __NR_creat 8 -#define __NR_link 9 -#define __NR_unlink 10 -#define __NR_execve 11 -#define __NR_chdir 12 -#define __NR_time 13 -#define __NR_mknod 14 -#define __NR_chmod 15 -#define __NR_chown 16 -/*#define __NR_break 17*/ -#define __NR_oldstat 18 -#define __NR_lseek 19 -#define __NR_getpid 20 -#define __NR_mount 21 -#define __NR_umount 22 -#define __NR_setuid 23 -#define __NR_getuid 24 -#define __NR_stime 25 -#define __NR_ptrace 26 -#define __NR_alarm 27 -#define __NR_oldfstat 28 -#define __NR_pause 29 -#define __NR_utime 30 -/*#define __NR_stty 31*/ -/*#define __NR_gtty 32*/ -#define __NR_access 33 -#define __NR_nice 34 -/*#define __NR_ftime 35*/ -#define __NR_sync 36 -#define __NR_kill 37 -#define __NR_rename 38 -#define __NR_mkdir 39 -#define __NR_rmdir 40 -#define __NR_dup 41 -#define __NR_pipe 42 -#define __NR_times 43 -/*#define __NR_prof 44*/ -#define __NR_brk 45 -#define __NR_setgid 46 -#define __NR_getgid 47 -#define __NR_signal 48 -#define __NR_geteuid 49 -#define __NR_getegid 50 -#define __NR_acct 51 -#define __NR_umount2 52 -/*#define __NR_lock 53*/ -#define __NR_ioctl 54 -#define __NR_fcntl 55 -/*#define __NR_mpx 56*/ -#define __NR_setpgid 57 -/*#define __NR_ulimit 58*/ -/*#define __NR_oldolduname 59*/ -#define __NR_umask 60 -#define __NR_chroot 61 -#define __NR_ustat 62 -#define __NR_dup2 63 -#define __NR_getppid 64 -#define __NR_getpgrp 65 -#define __NR_setsid 66 -#define __NR_sigaction 67 -#define __NR_sgetmask 68 -#define __NR_ssetmask 69 -#define __NR_setreuid 70 -#define __NR_setregid 71 -#define __NR_sigsuspend 72 -#define __NR_sigpending 73 -#define __NR_sethostname 74 -#define __NR_setrlimit 75 -#define __NR_getrlimit 76 -#define __NR_getrusage 77 -#define __NR_gettimeofday 78 -#define __NR_settimeofday 79 -#define __NR_getgroups 80 -#define __NR_setgroups 81 -#define __NR_select 82 -#define __NR_symlink 83 -#define __NR_oldlstat 84 -#define __NR_readlink 85 -#define __NR_uselib 86 -#define __NR_swapon 87 -#define __NR_reboot 88 -#define __NR_readdir 89 -#define __NR_mmap 90 -#define __NR_munmap 91 -#define __NR_truncate 92 -#define __NR_ftruncate 93 -#define __NR_fchmod 94 -#define __NR_fchown 95 -#define __NR_getpriority 96 -#define __NR_setpriority 97 -/*#define __NR_profil 98*/ -#define __NR_statfs 99 -#define __NR_fstatfs 100 -/*#define __NR_ioperm 101*/ -#define __NR_socketcall 102 -#define __NR_syslog 103 -#define __NR_setitimer 104 -#define __NR_getitimer 105 -#define __NR_stat 106 -#define __NR_lstat 107 -#define __NR_fstat 108 -/*#define __NR_olduname 109*/ -/*#define __NR_iopl 110*/ /* not supported */ -#define __NR_vhangup 111 -/*#define __NR_idle 112*/ /* Obsolete */ -/*#define __NR_vm86 113*/ /* not supported */ -#define __NR_wait4 114 -#define __NR_swapoff 115 -#define __NR_sysinfo 116 -#define __NR_ipc 117 -#define __NR_fsync 118 -#define __NR_sigreturn 119 -#define __NR_clone 120 -#define __NR_setdomainname 121 -#define __NR_uname 122 -#define __NR_cacheflush 123 -#define __NR_adjtimex 124 -#define __NR_mprotect 125 -#define __NR_sigprocmask 126 -#define __NR_create_module 127 -#define __NR_init_module 128 -#define __NR_delete_module 129 -#define __NR_get_kernel_syms 130 -#define __NR_quotactl 131 -#define __NR_getpgid 132 -#define __NR_fchdir 133 -#define __NR_bdflush 134 -#define __NR_sysfs 135 -#define __NR_personality 136 -/*#define __NR_afs_syscall 137*/ /* Syscall for Andrew File System */ -#define __NR_setfsuid 138 -#define __NR_setfsgid 139 -#define __NR__llseek 140 -#define __NR_getdents 141 -#define __NR__newselect 142 -#define __NR_flock 143 -#define __NR_msync 144 -#define __NR_readv 145 -#define __NR_writev 146 -#define __NR_getsid 147 -#define __NR_fdatasync 148 -#define __NR__sysctl 149 -#define __NR_mlock 150 -#define __NR_munlock 151 -#define __NR_mlockall 152 -#define __NR_munlockall 153 -#define __NR_sched_setparam 154 -#define __NR_sched_getparam 155 -#define __NR_sched_setscheduler 156 -#define __NR_sched_getscheduler 157 -#define __NR_sched_yield 158 -#define __NR_sched_get_priority_max 159 -#define __NR_sched_get_priority_min 160 -#define __NR_sched_rr_get_interval 161 -#define __NR_nanosleep 162 -#define __NR_mremap 163 -#define __NR_setresuid 164 -#define __NR_getresuid 165 -#define __NR_getpagesize 166 -#define __NR_query_module 167 -#define __NR_poll 168 -#define __NR_nfsservctl 169 -#define __NR_setresgid 170 -#define __NR_getresgid 171 -#define __NR_prctl 172 -#define __NR_rt_sigreturn 173 -#define __NR_rt_sigaction 174 -#define __NR_rt_sigprocmask 175 -#define __NR_rt_sigpending 176 -#define __NR_rt_sigtimedwait 177 -#define __NR_rt_sigqueueinfo 178 -#define __NR_rt_sigsuspend 179 -#define __NR_pread64 180 -#define __NR_pwrite64 181 -#define __NR_lchown 182 -#define __NR_getcwd 183 -#define __NR_capget 184 -#define __NR_capset 185 -#define __NR_sigaltstack 186 -#define __NR_sendfile 187 -#define __NR_getpmsg 188 /* some people actually want streams */ -#define __NR_putpmsg 189 /* some people actually want streams */ -#define __NR_vfork 190 -#define __NR_ugetrlimit 191 -#define __NR_mmap2 192 -#define __NR_truncate64 193 -#define __NR_ftruncate64 194 -#define __NR_stat64 195 -#define __NR_lstat64 196 -#define __NR_fstat64 197 -#define __NR_chown32 198 -#define __NR_getuid32 199 -#define __NR_getgid32 200 -#define __NR_geteuid32 201 -#define __NR_getegid32 202 -#define __NR_setreuid32 203 -#define __NR_setregid32 204 -#define __NR_getgroups32 205 -#define __NR_setgroups32 206 -#define __NR_fchown32 207 -#define __NR_setresuid32 208 -#define __NR_getresuid32 209 -#define __NR_setresgid32 210 -#define __NR_getresgid32 211 -#define __NR_lchown32 212 -#define __NR_setuid32 213 -#define __NR_setgid32 214 -#define __NR_setfsuid32 215 -#define __NR_setfsgid32 216 -#define __NR_pivot_root 217 -/* 218*/ -/* 219*/ -#define __NR_getdents64 220 -#define __NR_gettid 221 -#define __NR_tkill 222 -#define __NR_setxattr 223 -#define __NR_lsetxattr 224 -#define __NR_fsetxattr 225 -#define __NR_getxattr 226 -#define __NR_lgetxattr 227 -#define __NR_fgetxattr 228 -#define __NR_listxattr 229 -#define __NR_llistxattr 230 -#define __NR_flistxattr 231 -#define __NR_removexattr 232 -#define __NR_lremovexattr 233 -#define __NR_fremovexattr 234 -#define __NR_futex 235 -#define __NR_sendfile64 236 -#define __NR_mincore 237 -#define __NR_madvise 238 -#define __NR_fcntl64 239 -#define __NR_readahead 240 -#define __NR_io_setup 241 -#define __NR_io_destroy 242 -#define __NR_io_getevents 243 -#define __NR_io_submit 244 -#define __NR_io_cancel 245 -#define __NR_fadvise64 246 -#define __NR_exit_group 247 -#define __NR_lookup_dcookie 248 -#define __NR_epoll_create 249 -#define __NR_epoll_ctl 250 -#define __NR_epoll_wait 251 -#define __NR_remap_file_pages 252 -#define __NR_set_tid_address 253 -#define __NR_timer_create 254 -#define __NR_timer_settime 255 -#define __NR_timer_gettime 256 -#define __NR_timer_getoverrun 257 -#define __NR_timer_delete 258 -#define __NR_clock_settime 259 -#define __NR_clock_gettime 260 -#define __NR_clock_getres 261 -#define __NR_clock_nanosleep 262 -#define __NR_statfs64 263 -#define __NR_fstatfs64 264 -#define __NR_tgkill 265 -#define __NR_utimes 266 -#define __NR_fadvise64_64 267 -#define __NR_mbind 268 -#define __NR_get_mempolicy 269 -#define __NR_set_mempolicy 270 -#define __NR_mq_open 271 -#define __NR_mq_unlink 272 -#define __NR_mq_timedsend 273 -#define __NR_mq_timedreceive 274 -#define __NR_mq_notify 275 -#define __NR_mq_getsetattr 276 -#define __NR_waitid 277 -/*#define __NR_vserver 278*/ -#define __NR_add_key 279 -#define __NR_request_key 280 -#define __NR_keyctl 281 -#define __NR_ioprio_set 282 -#define __NR_ioprio_get 283 -#define __NR_inotify_init 284 -#define __NR_inotify_add_watch 285 -#define __NR_inotify_rm_watch 286 -#define __NR_migrate_pages 287 -#define __NR_openat 288 -#define __NR_mkdirat 289 -#define __NR_mknodat 290 -#define __NR_fchownat 291 -#define __NR_futimesat 292 -#define __NR_fstatat64 293 -#define __NR_unlinkat 294 -#define __NR_renameat 295 -#define __NR_linkat 296 -#define __NR_symlinkat 297 -#define __NR_readlinkat 298 -#define __NR_fchmodat 299 -#define __NR_faccessat 300 -#define __NR_pselect6 301 -#define __NR_ppoll 302 -#define __NR_unshare 303 -#define __NR_set_robust_list 304 -#define __NR_get_robust_list 305 -#define __NR_splice 306 -#define __NR_sync_file_range 307 -#define __NR_tee 308 -#define __NR_vmsplice 309 -#define __NR_move_pages 310 -#define __NR_sched_setaffinity 311 -#define __NR_sched_getaffinity 312 -#define __NR_kexec_load 313 -#define __NR_getcpu 314 -#define __NR_epoll_pwait 315 -#define __NR_utimensat 316 -#define __NR_signalfd 317 -#define __NR_timerfd_create 318 -#define __NR_eventfd 319 -#define __NR_fallocate 320 -#define __NR_timerfd_settime 321 -#define __NR_timerfd_gettime 322 -#define __NR_signalfd4 323 -#define __NR_eventfd2 324 -#define __NR_epoll_create1 325 -#define __NR_dup3 326 -#define __NR_pipe2 327 -#define __NR_inotify_init1 328 -#define __NR_preadv 329 -#define __NR_pwritev 330 -#define __NR_rt_tgsigqueueinfo 331 -#define __NR_perf_event_open 332 -#define __NR_get_thread_area 333 -#define __NR_set_thread_area 334 -#define __NR_atomic_cmpxchg_32 335 -#define __NR_atomic_barrier 336 -#define __NR_fanotify_init 337 -#define __NR_fanotify_mark 338 -#define __NR_prlimit64 339 -#define __NR_name_to_handle_at 340 -#define __NR_open_by_handle_at 341 -#define __NR_clock_adjtime 342 -#define __NR_syncfs 343 -#define __NR_setns 344 -#define __NR_process_vm_readv 345 -#define __NR_process_vm_writev 346 +#include <uapi/asm/unistd.h> -#ifdef __KERNEL__ -#define NR_syscalls 347 +#define NR_syscalls 348 #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT @@ -393,5 +42,4 @@ */ #define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") -#endif /* __KERNEL__ */ #endif /* _ASM_M68K_UNISTD_H_ */ diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild index baebb3da1d44..972bce120e1e 100644 --- a/arch/m68k/include/uapi/asm/Kbuild +++ b/arch/m68k/include/uapi/asm/Kbuild @@ -1,3 +1,26 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +header-y += a.out.h +header-y += auxvec.h +header-y += byteorder.h +header-y += cachectl.h +header-y += fcntl.h +header-y += ioctls.h +header-y += msgbuf.h +header-y += param.h +header-y += poll.h +header-y += posix_types.h +header-y += ptrace.h +header-y += sembuf.h +header-y += setup.h +header-y += shmbuf.h +header-y += sigcontext.h +header-y += signal.h +header-y += socket.h +header-y += sockios.h +header-y += stat.h +header-y += swab.h +header-y += termbits.h +header-y += termios.h +header-y += unistd.h diff --git a/arch/m68k/include/asm/a.out.h b/arch/m68k/include/uapi/asm/a.out.h index 3885fe43432a..3885fe43432a 100644 --- a/arch/m68k/include/asm/a.out.h +++ b/arch/m68k/include/uapi/asm/a.out.h diff --git a/arch/m68k/include/asm/auxvec.h b/arch/m68k/include/uapi/asm/auxvec.h index 844d6d52204b..844d6d52204b 100644 --- a/arch/m68k/include/asm/auxvec.h +++ b/arch/m68k/include/uapi/asm/auxvec.h diff --git a/arch/m68k/include/asm/byteorder.h b/arch/m68k/include/uapi/asm/byteorder.h index 31b260a88803..31b260a88803 100644 --- a/arch/m68k/include/asm/byteorder.h +++ b/arch/m68k/include/uapi/asm/byteorder.h diff --git a/arch/m68k/include/asm/cachectl.h b/arch/m68k/include/uapi/asm/cachectl.h index 525978e959e3..525978e959e3 100644 --- a/arch/m68k/include/asm/cachectl.h +++ b/arch/m68k/include/uapi/asm/cachectl.h diff --git a/arch/m68k/include/asm/fcntl.h b/arch/m68k/include/uapi/asm/fcntl.h index 1c369b20dc45..1c369b20dc45 100644 --- a/arch/m68k/include/asm/fcntl.h +++ b/arch/m68k/include/uapi/asm/fcntl.h diff --git a/arch/m68k/include/asm/ioctls.h b/arch/m68k/include/uapi/asm/ioctls.h index 1332bb4ca5b0..1332bb4ca5b0 100644 --- a/arch/m68k/include/asm/ioctls.h +++ b/arch/m68k/include/uapi/asm/ioctls.h diff --git a/arch/m68k/include/asm/msgbuf.h b/arch/m68k/include/uapi/asm/msgbuf.h index 243cb798de8f..243cb798de8f 100644 --- a/arch/m68k/include/asm/msgbuf.h +++ b/arch/m68k/include/uapi/asm/msgbuf.h diff --git a/arch/m68k/include/asm/param.h b/arch/m68k/include/uapi/asm/param.h index 36265ccf5c7b..36265ccf5c7b 100644 --- a/arch/m68k/include/asm/param.h +++ b/arch/m68k/include/uapi/asm/param.h diff --git a/arch/m68k/include/asm/poll.h b/arch/m68k/include/uapi/asm/poll.h index f080fcdb61bf..f080fcdb61bf 100644 --- a/arch/m68k/include/asm/poll.h +++ b/arch/m68k/include/uapi/asm/poll.h diff --git a/arch/m68k/include/asm/posix_types.h b/arch/m68k/include/uapi/asm/posix_types.h index cf4dbf70fdc7..cf4dbf70fdc7 100644 --- a/arch/m68k/include/asm/posix_types.h +++ b/arch/m68k/include/uapi/asm/posix_types.h diff --git a/arch/m68k/include/uapi/asm/ptrace.h b/arch/m68k/include/uapi/asm/ptrace.h new file mode 100644 index 000000000000..caf92fd34939 --- /dev/null +++ b/arch/m68k/include/uapi/asm/ptrace.h @@ -0,0 +1,79 @@ +#ifndef _UAPI_M68K_PTRACE_H +#define _UAPI_M68K_PTRACE_H + +#define PT_D1 0 +#define PT_D2 1 +#define PT_D3 2 +#define PT_D4 3 +#define PT_D5 4 +#define PT_D6 5 +#define PT_D7 6 +#define PT_A0 7 +#define PT_A1 8 +#define PT_A2 9 +#define PT_A3 10 +#define PT_A4 11 +#define PT_A5 12 +#define PT_A6 13 +#define PT_D0 14 +#define PT_USP 15 +#define PT_ORIG_D0 16 +#define PT_SR 17 +#define PT_PC 18 + +#ifndef __ASSEMBLY__ + +/* this struct defines the way the registers are stored on the + stack during a system call. */ + +struct pt_regs { + long d1; + long d2; + long d3; + long d4; + long d5; + long a0; + long a1; + long a2; + long d0; + long orig_d0; + long stkadj; +#ifdef CONFIG_COLDFIRE + unsigned format : 4; /* frame format specifier */ + unsigned vector : 12; /* vector offset */ + unsigned short sr; + unsigned long pc; +#else + unsigned short sr; + unsigned long pc; + unsigned format : 4; /* frame format specifier */ + unsigned vector : 12; /* vector offset */ +#endif +}; + +/* + * This is the extended stack used by signal handlers and the context + * switcher: it's pushed after the normal "struct pt_regs". + */ +struct switch_stack { + unsigned long d6; + unsigned long d7; + unsigned long a3; + unsigned long a4; + unsigned long a5; + unsigned long a6; + unsigned long retpc; +}; + +/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 + +#define PTRACE_GET_THREAD_AREA 25 + +#define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */ + +#endif /* __ASSEMBLY__ */ +#endif /* _UAPI_M68K_PTRACE_H */ diff --git a/arch/m68k/include/asm/sembuf.h b/arch/m68k/include/uapi/asm/sembuf.h index 2308052a8c24..2308052a8c24 100644 --- a/arch/m68k/include/asm/sembuf.h +++ b/arch/m68k/include/uapi/asm/sembuf.h diff --git a/arch/m68k/include/uapi/asm/setup.h b/arch/m68k/include/uapi/asm/setup.h new file mode 100644 index 000000000000..85579bff455c --- /dev/null +++ b/arch/m68k/include/uapi/asm/setup.h @@ -0,0 +1,103 @@ +/* +** asm/setup.h -- Definition of the Linux/m68k setup information +** +** Copyright 1992 by Greg Harp +** +** This file is subject to the terms and conditions of the GNU General Public +** License. See the file COPYING in the main directory of this archive +** for more details. +** +** Created 09/29/92 by Greg Harp +** +** 5/2/94 Roman Hodek: +** Added bi_atari part of the machine dependent union bi_un; for now it +** contains just a model field to distinguish between TT and Falcon. +** 26/7/96 Roman Zippel: +** Renamed to setup.h; added some useful macros to allow gcc some +** optimizations if possible. +** 5/10/96 Geert Uytterhoeven: +** Redesign of the boot information structure; moved boot information +** structure to bootinfo.h +*/ + +#ifndef _UAPI_M68K_SETUP_H +#define _UAPI_M68K_SETUP_H + + + + /* + * Linux/m68k Architectures + */ + +#define MACH_AMIGA 1 +#define MACH_ATARI 2 +#define MACH_MAC 3 +#define MACH_APOLLO 4 +#define MACH_SUN3 5 +#define MACH_MVME147 6 +#define MACH_MVME16x 7 +#define MACH_BVME6000 8 +#define MACH_HP300 9 +#define MACH_Q40 10 +#define MACH_SUN3X 11 +#define MACH_M54XX 12 + +#define COMMAND_LINE_SIZE 256 + + + + /* + * CPU, FPU and MMU types + * + * Note: we may rely on the following equalities: + * + * CPU_68020 == MMU_68851 + * CPU_68030 == MMU_68030 + * CPU_68040 == FPU_68040 == MMU_68040 + * CPU_68060 == FPU_68060 == MMU_68060 + */ + +#define CPUB_68020 0 +#define CPUB_68030 1 +#define CPUB_68040 2 +#define CPUB_68060 3 +#define CPUB_COLDFIRE 4 + +#define CPU_68020 (1<<CPUB_68020) +#define CPU_68030 (1<<CPUB_68030) +#define CPU_68040 (1<<CPUB_68040) +#define CPU_68060 (1<<CPUB_68060) +#define CPU_COLDFIRE (1<<CPUB_COLDFIRE) + +#define FPUB_68881 0 +#define FPUB_68882 1 +#define FPUB_68040 2 /* Internal FPU */ +#define FPUB_68060 3 /* Internal FPU */ +#define FPUB_SUNFPA 4 /* Sun-3 FPA */ +#define FPUB_COLDFIRE 5 /* ColdFire FPU */ + +#define FPU_68881 (1<<FPUB_68881) +#define FPU_68882 (1<<FPUB_68882) +#define FPU_68040 (1<<FPUB_68040) +#define FPU_68060 (1<<FPUB_68060) +#define FPU_SUNFPA (1<<FPUB_SUNFPA) +#define FPU_COLDFIRE (1<<FPUB_COLDFIRE) + +#define MMUB_68851 0 +#define MMUB_68030 1 /* Internal MMU */ +#define MMUB_68040 2 /* Internal MMU */ +#define MMUB_68060 3 /* Internal MMU */ +#define MMUB_APOLLO 4 /* Custom Apollo */ +#define MMUB_SUN3 5 /* Custom Sun-3 */ +#define MMUB_COLDFIRE 6 /* Internal MMU */ + +#define MMU_68851 (1<<MMUB_68851) +#define MMU_68030 (1<<MMUB_68030) +#define MMU_68040 (1<<MMUB_68040) +#define MMU_68060 (1<<MMUB_68060) +#define MMU_SUN3 (1<<MMUB_SUN3) +#define MMU_APOLLO (1<<MMUB_APOLLO) +#define MMU_COLDFIRE (1<<MMUB_COLDFIRE) + + +#endif /* _UAPI_M68K_SETUP_H */ diff --git a/arch/m68k/include/asm/shmbuf.h b/arch/m68k/include/uapi/asm/shmbuf.h index f8928d62f1b7..f8928d62f1b7 100644 --- a/arch/m68k/include/asm/shmbuf.h +++ b/arch/m68k/include/uapi/asm/shmbuf.h diff --git a/arch/m68k/include/asm/sigcontext.h b/arch/m68k/include/uapi/asm/sigcontext.h index 523db2a51cf3..523db2a51cf3 100644 --- a/arch/m68k/include/asm/sigcontext.h +++ b/arch/m68k/include/uapi/asm/sigcontext.h diff --git a/arch/m68k/include/uapi/asm/signal.h b/arch/m68k/include/uapi/asm/signal.h new file mode 100644 index 000000000000..2b450f311bd9 --- /dev/null +++ b/arch/m68k/include/uapi/asm/signal.h @@ -0,0 +1,118 @@ +#ifndef _UAPI_M68K_SIGNAL_H +#define _UAPI_M68K_SIGNAL_H + +#include <linux/types.h> + +/* Avoid too many header ordering problems. */ +struct siginfo; + +#ifndef __KERNEL__ +/* Here we must cater to libcs that poke about in kernel headers. */ + +#define NSIG 32 +typedef unsigned long sigset_t; + +#endif /* __KERNEL__ */ + +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 +#define SIGBUS 7 +#define SIGFPE 8 +#define SIGKILL 9 +#define SIGUSR1 10 +#define SIGSEGV 11 +#define SIGUSR2 12 +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGSTKFLT 16 +#define SIGCHLD 17 +#define SIGCONT 18 +#define SIGSTOP 19 +#define SIGTSTP 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGURG 23 +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGIO 29 +#define SIGPOLL SIGIO +/* +#define SIGLOST 29 +*/ +#define SIGPWR 30 +#define SIGSYS 31 +#define SIGUNUSED 31 + +/* These should not be considered constants from userland. */ +#define SIGRTMIN 32 +#define SIGRTMAX _NSIG + +/* + * SA_FLAGS values: + * + * SA_ONSTACK indicates that a registered stack_t will be used. + * SA_RESTART flag to get restarting signals (which were the default long ago) + * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. + * SA_RESETHAND clears the handler when the signal is delivered. + * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. + * SA_NODEFER prevents the current signal from being masked in the handler. + * + * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single + * Unix names RESETHAND and NODEFER respectively. + */ +#define SA_NOCLDSTOP 0x00000001 +#define SA_NOCLDWAIT 0x00000002 +#define SA_SIGINFO 0x00000004 +#define SA_ONSTACK 0x08000000 +#define SA_RESTART 0x10000000 +#define SA_NODEFER 0x40000000 +#define SA_RESETHAND 0x80000000 + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 2048 +#define SIGSTKSZ 8192 + +#include <asm-generic/signal-defs.h> + +#ifndef __KERNEL__ +/* Here we must cater to libcs that poke about in kernel headers. */ + +struct sigaction { + union { + __sighandler_t _sa_handler; + void (*_sa_sigaction)(int, struct siginfo *, void *); + } _u; + sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer)(void); +}; + +#define sa_handler _u._sa_handler +#define sa_sigaction _u._sa_sigaction + +#endif /* __KERNEL__ */ + +typedef struct sigaltstack { + void __user *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#endif /* _UAPI_M68K_SIGNAL_H */ diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/uapi/asm/socket.h index d1be684edf97..d1be684edf97 100644 --- a/arch/m68k/include/asm/socket.h +++ b/arch/m68k/include/uapi/asm/socket.h diff --git a/arch/m68k/include/asm/sockios.h b/arch/m68k/include/uapi/asm/sockios.h index c04a23943cb7..c04a23943cb7 100644 --- a/arch/m68k/include/asm/sockios.h +++ b/arch/m68k/include/uapi/asm/sockios.h diff --git a/arch/m68k/include/asm/stat.h b/arch/m68k/include/uapi/asm/stat.h index dd38bc2e9f98..dd38bc2e9f98 100644 --- a/arch/m68k/include/asm/stat.h +++ b/arch/m68k/include/uapi/asm/stat.h diff --git a/arch/m68k/include/asm/swab.h b/arch/m68k/include/uapi/asm/swab.h index b7b37a40defc..b7b37a40defc 100644 --- a/arch/m68k/include/asm/swab.h +++ b/arch/m68k/include/uapi/asm/swab.h diff --git a/arch/m68k/include/asm/termbits.h b/arch/m68k/include/uapi/asm/termbits.h index aea1e37b765a..aea1e37b765a 100644 --- a/arch/m68k/include/asm/termbits.h +++ b/arch/m68k/include/uapi/asm/termbits.h diff --git a/arch/m68k/include/uapi/asm/termios.h b/arch/m68k/include/uapi/asm/termios.h new file mode 100644 index 000000000000..ce2142c9ac1d --- /dev/null +++ b/arch/m68k/include/uapi/asm/termios.h @@ -0,0 +1,44 @@ +#ifndef _UAPI_M68K_TERMIOS_H +#define _UAPI_M68K_TERMIOS_H + +#include <asm/termbits.h> +#include <asm/ioctls.h> + +struct winsize { + unsigned short ws_row; + unsigned short ws_col; + unsigned short ws_xpixel; + unsigned short ws_ypixel; +}; + +#define NCC 8 +struct termio { + unsigned short c_iflag; /* input mode flags */ + unsigned short c_oflag; /* output mode flags */ + unsigned short c_cflag; /* control mode flags */ + unsigned short c_lflag; /* local mode flags */ + unsigned char c_line; /* line discipline */ + unsigned char c_cc[NCC]; /* control characters */ +}; + + +/* modem lines */ +#define TIOCM_LE 0x001 +#define TIOCM_DTR 0x002 +#define TIOCM_RTS 0x004 +#define TIOCM_ST 0x008 +#define TIOCM_SR 0x010 +#define TIOCM_CTS 0x020 +#define TIOCM_CAR 0x040 +#define TIOCM_RNG 0x080 +#define TIOCM_DSR 0x100 +#define TIOCM_CD TIOCM_CAR +#define TIOCM_RI TIOCM_RNG +#define TIOCM_OUT1 0x2000 +#define TIOCM_OUT2 0x4000 +#define TIOCM_LOOP 0x8000 + +/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ + + +#endif /* _UAPI_M68K_TERMIOS_H */ diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h new file mode 100644 index 000000000000..b94bfbf90705 --- /dev/null +++ b/arch/m68k/include/uapi/asm/unistd.h @@ -0,0 +1,357 @@ +#ifndef _UAPI_ASM_M68K_UNISTD_H_ +#define _UAPI_ASM_M68K_UNISTD_H_ + +/* + * This file contains the system call numbers. + */ + +#define __NR_restart_syscall 0 +#define __NR_exit 1 +#define __NR_fork 2 +#define __NR_read 3 +#define __NR_write 4 +#define __NR_open 5 +#define __NR_close 6 +#define __NR_waitpid 7 +#define __NR_creat 8 +#define __NR_link 9 +#define __NR_unlink 10 +#define __NR_execve 11 +#define __NR_chdir 12 +#define __NR_time 13 +#define __NR_mknod 14 +#define __NR_chmod 15 +#define __NR_chown 16 +/*#define __NR_break 17*/ +#define __NR_oldstat 18 +#define __NR_lseek 19 +#define __NR_getpid 20 +#define __NR_mount 21 +#define __NR_umount 22 +#define __NR_setuid 23 +#define __NR_getuid 24 +#define __NR_stime 25 +#define __NR_ptrace 26 +#define __NR_alarm 27 +#define __NR_oldfstat 28 +#define __NR_pause 29 +#define __NR_utime 30 +/*#define __NR_stty 31*/ +/*#define __NR_gtty 32*/ +#define __NR_access 33 +#define __NR_nice 34 +/*#define __NR_ftime 35*/ +#define __NR_sync 36 +#define __NR_kill 37 +#define __NR_rename 38 +#define __NR_mkdir 39 +#define __NR_rmdir 40 +#define __NR_dup 41 +#define __NR_pipe 42 +#define __NR_times 43 +/*#define __NR_prof 44*/ +#define __NR_brk 45 +#define __NR_setgid 46 +#define __NR_getgid 47 +#define __NR_signal 48 +#define __NR_geteuid 49 +#define __NR_getegid 50 +#define __NR_acct 51 +#define __NR_umount2 52 +/*#define __NR_lock 53*/ +#define __NR_ioctl 54 +#define __NR_fcntl 55 +/*#define __NR_mpx 56*/ +#define __NR_setpgid 57 +/*#define __NR_ulimit 58*/ +/*#define __NR_oldolduname 59*/ +#define __NR_umask 60 +#define __NR_chroot 61 +#define __NR_ustat 62 +#define __NR_dup2 63 +#define __NR_getppid 64 +#define __NR_getpgrp 65 +#define __NR_setsid 66 +#define __NR_sigaction 67 +#define __NR_sgetmask 68 +#define __NR_ssetmask 69 +#define __NR_setreuid 70 +#define __NR_setregid 71 +#define __NR_sigsuspend 72 +#define __NR_sigpending 73 +#define __NR_sethostname 74 +#define __NR_setrlimit 75 +#define __NR_getrlimit 76 +#define __NR_getrusage 77 +#define __NR_gettimeofday 78 +#define __NR_settimeofday 79 +#define __NR_getgroups 80 +#define __NR_setgroups 81 +#define __NR_select 82 +#define __NR_symlink 83 +#define __NR_oldlstat 84 +#define __NR_readlink 85 +#define __NR_uselib 86 +#define __NR_swapon 87 +#define __NR_reboot 88 +#define __NR_readdir 89 +#define __NR_mmap 90 +#define __NR_munmap 91 +#define __NR_truncate 92 +#define __NR_ftruncate 93 +#define __NR_fchmod 94 +#define __NR_fchown 95 +#define __NR_getpriority 96 +#define __NR_setpriority 97 +/*#define __NR_profil 98*/ +#define __NR_statfs 99 +#define __NR_fstatfs 100 +/*#define __NR_ioperm 101*/ +#define __NR_socketcall 102 +#define __NR_syslog 103 +#define __NR_setitimer 104 +#define __NR_getitimer 105 +#define __NR_stat 106 +#define __NR_lstat 107 +#define __NR_fstat 108 +/*#define __NR_olduname 109*/ +/*#define __NR_iopl 110*/ /* not supported */ +#define __NR_vhangup 111 +/*#define __NR_idle 112*/ /* Obsolete */ +/*#define __NR_vm86 113*/ /* not supported */ +#define __NR_wait4 114 +#define __NR_swapoff 115 +#define __NR_sysinfo 116 +#define __NR_ipc 117 +#define __NR_fsync 118 +#define __NR_sigreturn 119 +#define __NR_clone 120 +#define __NR_setdomainname 121 +#define __NR_uname 122 +#define __NR_cacheflush 123 +#define __NR_adjtimex 124 +#define __NR_mprotect 125 +#define __NR_sigprocmask 126 +#define __NR_create_module 127 +#define __NR_init_module 128 +#define __NR_delete_module 129 +#define __NR_get_kernel_syms 130 +#define __NR_quotactl 131 +#define __NR_getpgid 132 +#define __NR_fchdir 133 +#define __NR_bdflush 134 +#define __NR_sysfs 135 +#define __NR_personality 136 +/*#define __NR_afs_syscall 137*/ /* Syscall for Andrew File System */ +#define __NR_setfsuid 138 +#define __NR_setfsgid 139 +#define __NR__llseek 140 +#define __NR_getdents 141 +#define __NR__newselect 142 +#define __NR_flock 143 +#define __NR_msync 144 +#define __NR_readv 145 +#define __NR_writev 146 +#define __NR_getsid 147 +#define __NR_fdatasync 148 +#define __NR__sysctl 149 +#define __NR_mlock 150 +#define __NR_munlock 151 +#define __NR_mlockall 152 +#define __NR_munlockall 153 +#define __NR_sched_setparam 154 +#define __NR_sched_getparam 155 +#define __NR_sched_setscheduler 156 +#define __NR_sched_getscheduler 157 +#define __NR_sched_yield 158 +#define __NR_sched_get_priority_max 159 +#define __NR_sched_get_priority_min 160 +#define __NR_sched_rr_get_interval 161 +#define __NR_nanosleep 162 +#define __NR_mremap 163 +#define __NR_setresuid 164 +#define __NR_getresuid 165 +#define __NR_getpagesize 166 +#define __NR_query_module 167 +#define __NR_poll 168 +#define __NR_nfsservctl 169 +#define __NR_setresgid 170 +#define __NR_getresgid 171 +#define __NR_prctl 172 +#define __NR_rt_sigreturn 173 +#define __NR_rt_sigaction 174 +#define __NR_rt_sigprocmask 175 +#define __NR_rt_sigpending 176 +#define __NR_rt_sigtimedwait 177 +#define __NR_rt_sigqueueinfo 178 +#define __NR_rt_sigsuspend 179 +#define __NR_pread64 180 +#define __NR_pwrite64 181 +#define __NR_lchown 182 +#define __NR_getcwd 183 +#define __NR_capget 184 +#define __NR_capset 185 +#define __NR_sigaltstack 186 +#define __NR_sendfile 187 +#define __NR_getpmsg 188 /* some people actually want streams */ +#define __NR_putpmsg 189 /* some people actually want streams */ +#define __NR_vfork 190 +#define __NR_ugetrlimit 191 +#define __NR_mmap2 192 +#define __NR_truncate64 193 +#define __NR_ftruncate64 194 +#define __NR_stat64 195 +#define __NR_lstat64 196 +#define __NR_fstat64 197 +#define __NR_chown32 198 +#define __NR_getuid32 199 +#define __NR_getgid32 200 +#define __NR_geteuid32 201 +#define __NR_getegid32 202 +#define __NR_setreuid32 203 +#define __NR_setregid32 204 +#define __NR_getgroups32 205 +#define __NR_setgroups32 206 +#define __NR_fchown32 207 +#define __NR_setresuid32 208 +#define __NR_getresuid32 209 +#define __NR_setresgid32 210 +#define __NR_getresgid32 211 +#define __NR_lchown32 212 +#define __NR_setuid32 213 +#define __NR_setgid32 214 +#define __NR_setfsuid32 215 +#define __NR_setfsgid32 216 +#define __NR_pivot_root 217 +/* 218*/ +/* 219*/ +#define __NR_getdents64 220 +#define __NR_gettid 221 +#define __NR_tkill 222 +#define __NR_setxattr 223 +#define __NR_lsetxattr 224 +#define __NR_fsetxattr 225 +#define __NR_getxattr 226 +#define __NR_lgetxattr 227 +#define __NR_fgetxattr 228 +#define __NR_listxattr 229 +#define __NR_llistxattr 230 +#define __NR_flistxattr 231 +#define __NR_removexattr 232 +#define __NR_lremovexattr 233 +#define __NR_fremovexattr 234 +#define __NR_futex 235 +#define __NR_sendfile64 236 +#define __NR_mincore 237 +#define __NR_madvise 238 +#define __NR_fcntl64 239 +#define __NR_readahead 240 +#define __NR_io_setup 241 +#define __NR_io_destroy 242 +#define __NR_io_getevents 243 +#define __NR_io_submit 244 +#define __NR_io_cancel 245 +#define __NR_fadvise64 246 +#define __NR_exit_group 247 +#define __NR_lookup_dcookie 248 +#define __NR_epoll_create 249 +#define __NR_epoll_ctl 250 +#define __NR_epoll_wait 251 +#define __NR_remap_file_pages 252 +#define __NR_set_tid_address 253 +#define __NR_timer_create 254 +#define __NR_timer_settime 255 +#define __NR_timer_gettime 256 +#define __NR_timer_getoverrun 257 +#define __NR_timer_delete 258 +#define __NR_clock_settime 259 +#define __NR_clock_gettime 260 +#define __NR_clock_getres 261 +#define __NR_clock_nanosleep 262 +#define __NR_statfs64 263 +#define __NR_fstatfs64 264 +#define __NR_tgkill 265 +#define __NR_utimes 266 +#define __NR_fadvise64_64 267 +#define __NR_mbind 268 +#define __NR_get_mempolicy 269 +#define __NR_set_mempolicy 270 +#define __NR_mq_open 271 +#define __NR_mq_unlink 272 +#define __NR_mq_timedsend 273 +#define __NR_mq_timedreceive 274 +#define __NR_mq_notify 275 +#define __NR_mq_getsetattr 276 +#define __NR_waitid 277 +/*#define __NR_vserver 278*/ +#define __NR_add_key 279 +#define __NR_request_key 280 +#define __NR_keyctl 281 +#define __NR_ioprio_set 282 +#define __NR_ioprio_get 283 +#define __NR_inotify_init 284 +#define __NR_inotify_add_watch 285 +#define __NR_inotify_rm_watch 286 +#define __NR_migrate_pages 287 +#define __NR_openat 288 +#define __NR_mkdirat 289 +#define __NR_mknodat 290 +#define __NR_fchownat 291 +#define __NR_futimesat 292 +#define __NR_fstatat64 293 +#define __NR_unlinkat 294 +#define __NR_renameat 295 +#define __NR_linkat 296 +#define __NR_symlinkat 297 +#define __NR_readlinkat 298 +#define __NR_fchmodat 299 +#define __NR_faccessat 300 +#define __NR_pselect6 301 +#define __NR_ppoll 302 +#define __NR_unshare 303 +#define __NR_set_robust_list 304 +#define __NR_get_robust_list 305 +#define __NR_splice 306 +#define __NR_sync_file_range 307 +#define __NR_tee 308 +#define __NR_vmsplice 309 +#define __NR_move_pages 310 +#define __NR_sched_setaffinity 311 +#define __NR_sched_getaffinity 312 +#define __NR_kexec_load 313 +#define __NR_getcpu 314 +#define __NR_epoll_pwait 315 +#define __NR_utimensat 316 +#define __NR_signalfd 317 +#define __NR_timerfd_create 318 +#define __NR_eventfd 319 +#define __NR_fallocate 320 +#define __NR_timerfd_settime 321 +#define __NR_timerfd_gettime 322 +#define __NR_signalfd4 323 +#define __NR_eventfd2 324 +#define __NR_epoll_create1 325 +#define __NR_dup3 326 +#define __NR_pipe2 327 +#define __NR_inotify_init1 328 +#define __NR_preadv 329 +#define __NR_pwritev 330 +#define __NR_rt_tgsigqueueinfo 331 +#define __NR_perf_event_open 332 +#define __NR_get_thread_area 333 +#define __NR_set_thread_area 334 +#define __NR_atomic_cmpxchg_32 335 +#define __NR_atomic_barrier 336 +#define __NR_fanotify_init 337 +#define __NR_fanotify_mark 338 +#define __NR_prlimit64 339 +#define __NR_name_to_handle_at 340 +#define __NR_open_by_handle_at 341 +#define __NR_clock_adjtime 342 +#define __NR_syncfs 343 +#define __NR_setns 344 +#define __NR_process_vm_readv 345 +#define __NR_process_vm_writev 346 +#define __NR_kcmp 347 + +#endif /* _UAPI_ASM_M68K_UNISTD_H_ */ diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S index ce827b376110..4fc2e29b771b 100644 --- a/arch/m68k/kernel/syscalltable.S +++ b/arch/m68k/kernel/syscalltable.S @@ -367,4 +367,5 @@ ENTRY(sys_call_table) .long sys_setns .long sys_process_vm_readv /* 345 */ .long sys_process_vm_writev + .long sys_kcmp diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3f3d9ca7a5b6..5dba755a43e6 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -130,6 +130,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE select HAVE_UID16 if 32BIT select ARCH_WANT_IPC_PARSE_VERSION + select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL_OLD select GENERIC_CLOCKEVENTS diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S index d80f79d8dd9c..8e1fb8239287 100644 --- a/arch/s390/boot/compressed/vmlinux.lds.S +++ b/arch/s390/boot/compressed/vmlinux.lds.S @@ -5,7 +5,7 @@ OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390") OUTPUT_ARCH(s390:64-bit) #else OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390") -OUTPUT_ARCH(s390) +OUTPUT_ARCH(s390:31-bit) #endif ENTRY(startup) diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 7941968e12b4..5f0173a31693 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -9,7 +9,7 @@ #include <asm/cpu_mf.h> /* CPU-measurement counter facility */ -#define PERF_CPUM_CF_MAX_CTR 160 +#define PERF_CPUM_CF_MAX_CTR 256 /* Per-CPU flags for PMU states */ #define PMU_F_RESERVED 0x1000 diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild index 59b67ed423b4..7bf68fff7c5d 100644 --- a/arch/s390/include/uapi/asm/Kbuild +++ b/arch/s390/include/uapi/asm/Kbuild @@ -1,8 +1,6 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm -generic-y += kvm_para.h - header-y += auxvec.h header-y += bitsperlong.h header-y += byteorder.h diff --git a/arch/s390/include/uapi/asm/chpid.h b/arch/s390/include/uapi/asm/chpid.h index 581992dfae27..6b4fb29cc197 100644 --- a/arch/s390/include/uapi/asm/chpid.h +++ b/arch/s390/include/uapi/asm/chpid.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ @@ -12,10 +12,10 @@ #define __MAX_CHPID 255 struct chp_id { - u8 reserved1; - u8 cssid; - u8 reserved2; - u8 id; + __u8 reserved1; + __u8 cssid; + __u8 reserved2; + __u8 id; } __attribute__((packed)); diff --git a/arch/s390/include/uapi/asm/kvm_para.h b/arch/s390/include/uapi/asm/kvm_para.h new file mode 100644 index 000000000000..ff1f4e7b3015 --- /dev/null +++ b/arch/s390/include/uapi/asm/kvm_para.h @@ -0,0 +1,11 @@ +/* + * User API definitions for paravirtual devices on s390 + * + * Copyright IBM Corp. 2008 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + * + * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> + */ diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c index 8df8d8a19c98..64b24650e4f8 100644 --- a/arch/s390/kernel/cache.c +++ b/arch/s390/kernel/cache.c @@ -59,8 +59,8 @@ enum { enum { CACHE_TI_UNIFIED = 0, - CACHE_TI_INSTRUCTION = 0, - CACHE_TI_DATA, + CACHE_TI_DATA = 0, + CACHE_TI_INSTRUCTION, }; struct cache_info { @@ -121,7 +121,10 @@ static int __init cache_add(int level, int private, int type) cache = kzalloc(sizeof(*cache), GFP_KERNEL); if (!cache) return -ENOMEM; - ti = type == CACHE_TYPE_DATA ? CACHE_TI_DATA : CACHE_TI_UNIFIED; + if (type == CACHE_TYPE_INSTRUCTION) + ti = CACHE_TI_INSTRUCTION; + else + ti = CACHE_TI_UNIFIED; cache->size = ecag(EXTRACT_SIZE, level, ti); cache->line_size = ecag(EXTRACT_LINE_SIZE, level, ti); cache->associativity = ecag(EXTRACT_ASSOCIATIVITY, level, ti); diff --git a/arch/s390/kernel/head_kdump.S b/arch/s390/kernel/head_kdump.S index acaaaf4b7055..085a95eb315f 100644 --- a/arch/s390/kernel/head_kdump.S +++ b/arch/s390/kernel/head_kdump.S @@ -85,16 +85,10 @@ .align 2 startup_kdump_relocated: basr %r13,0 -0: - mvc 0(8,%r0),.Lrestart_psw-0b(%r13) # Setup restart PSW - sam31 # Switch to 31 bit addr mode - sr %r1,%r1 # Erase register r1 - sr %r2,%r2 # Erase register r2 - sigp %r1,%r2,SIGP_SET_ARCHITECTURE # Switch to 31 bit arch mode - lpsw 0 # Start new kernel... +0: lpswe .Lrestart_psw-0b(%r13) # Start new kernel... .align 8 .Lrestart_psw: - .long 0x00080000,0x80000000 + startup + .quad 0x0000000080000000,0x0000000000000000 + startup #else .align 2 .Lep_startup_kdump: diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index 9871b1971ed7..c4e7269d4a09 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -94,7 +94,7 @@ static int get_counter_set(u64 event) set = CPUMF_CTR_SET_USER; else if (event < 128) set = CPUMF_CTR_SET_CRYPTO; - else if (event < 160) + else if (event < 256) set = CPUMF_CTR_SET_EXT; return set; @@ -138,6 +138,10 @@ static int validate_ctr_version(const struct hw_perf_event *hwc) case CPUMF_CTR_SET_EXT: if (cpuhw->info.csvn < 1) err = -EOPNOTSUPP; + if ((cpuhw->info.csvn == 1 && hwc->config > 159) || + (cpuhw->info.csvn == 2 && hwc->config > 175) || + (cpuhw->info.csvn > 2 && hwc->config > 255)) + err = -EOPNOTSUPP; break; } diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index de8fa9bbd35e..79cb51adc741 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -8,7 +8,7 @@ #ifndef CONFIG_64BIT OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390") -OUTPUT_ARCH(s390) +OUTPUT_ARCH(s390:31-bit) ENTRY(startup) jiffies = jiffies_64 + 4; #else diff --git a/arch/tile/Makefile b/arch/tile/Makefile index 55640cf92597..3d15364c6071 100644 --- a/arch/tile/Makefile +++ b/arch/tile/Makefile @@ -26,6 +26,10 @@ $(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH)) endif endif +# The tile compiler may emit .eh_frame information for backtracing. +# In kernel modules, this causes load failures due to unsupported relocations. +KBUILD_CFLAGS += -fno-asynchronous-unwind-tables + ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"") KBUILD_CFLAGS += $(CONFIG_DEBUG_EXTRA_FLAGS) endif diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c index 001cbfa10ac6..243ffebe38d6 100644 --- a/arch/tile/kernel/module.c +++ b/arch/tile/kernel/module.c @@ -24,16 +24,6 @@ #include <asm/homecache.h> #include <arch/opcode.h> -#ifdef __tilegx__ -# define Elf_Rela Elf64_Rela -# define ELF_R_SYM ELF64_R_SYM -# define ELF_R_TYPE ELF64_R_TYPE -#else -# define Elf_Rela Elf32_Rela -# define ELF_R_SYM ELF32_R_SYM -# define ELF_R_TYPE ELF32_R_TYPE -#endif - #ifdef MODULE_DEBUG #define DEBUGP printk #else diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index c9dcc181d4d1..6e8fdf5ad113 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -35,7 +35,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); #define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \ efi_call_virt(f, a1, a2, a3, a4, a5, a6) -#define efi_ioremap(addr, size, type) ioremap_cache(addr, size) +#define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size) #else /* !CONFIG_X86_32 */ @@ -89,7 +89,7 @@ extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3, (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6)) extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size, - u32 type); + u32 type, u64 attribute); #endif /* CONFIG_X86_32 */ @@ -98,6 +98,8 @@ extern void efi_set_executable(efi_memory_desc_t *md, bool executable); extern int efi_memblock_x86_reserve_range(void); extern void efi_call_phys_prelog(void); extern void efi_call_phys_epilog(void); +extern void efi_unmap_memmap(void); +extern void efi_memory_uc(u64 addr, unsigned long size); #ifndef CONFIG_EFI /* diff --git a/arch/x86/include/asm/xen/interface.h b/arch/x86/include/asm/xen/interface.h index 6d2f75a82a14..54d52ff1304a 100644 --- a/arch/x86/include/asm/xen/interface.h +++ b/arch/x86/include/asm/xen/interface.h @@ -51,14 +51,14 @@ * with Xen so that on ARM we can have one ABI that works for 32 and 64 * bit guests. */ typedef unsigned long xen_pfn_t; +#define PRI_xen_pfn "lx" typedef unsigned long xen_ulong_t; +#define PRI_xen_ulong "lx" /* Guest handles for primitive C types. */ __DEFINE_GUEST_HANDLE(uchar, unsigned char); __DEFINE_GUEST_HANDLE(uint, unsigned int); -__DEFINE_GUEST_HANDLE(ulong, unsigned long); DEFINE_GUEST_HANDLE(char); DEFINE_GUEST_HANDLE(int); -DEFINE_GUEST_HANDLE(long); DEFINE_GUEST_HANDLE(void); DEFINE_GUEST_HANDLE(uint64_t); DEFINE_GUEST_HANDLE(uint32_t); diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index c265593ec2cd..1817fa911024 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2257,6 +2257,9 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void) continue; cfg = irq_cfg(irq); + if (!cfg) + continue; + raw_spin_lock(&desc->lock); /* diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 3373f84d1397..4a3374e61a93 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -208,12 +208,14 @@ static bool check_hw_exists(void) } /* - * Now write a value and read it back to see if it matches, - * this is needed to detect certain hardware emulators (qemu/kvm) - * that don't trap on the MSR access and always return 0s. + * Read the current value, change it and read it back to see if it + * matches, this is needed to detect certain hardware emulators + * (qemu/kvm) that don't trap on the MSR access and always return 0s. */ - val = 0xabcdUL; reg = x86_pmu_event_addr(0); + if (rdmsrl_safe(reg, &val)) + goto msr_fail; + val ^= 0xffffUL; ret = wrmsrl_safe(reg, val); ret |= rdmsrl_safe(reg, &val_new); if (ret || val != val_new) diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index 99d96a4978b5..3cf3d97cce3a 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -118,22 +118,24 @@ static void snbep_uncore_pci_disable_box(struct intel_uncore_box *box) { struct pci_dev *pdev = box->pci_dev; int box_ctl = uncore_pci_box_ctl(box); - u32 config; + u32 config = 0; - pci_read_config_dword(pdev, box_ctl, &config); - config |= SNBEP_PMON_BOX_CTL_FRZ; - pci_write_config_dword(pdev, box_ctl, config); + if (!pci_read_config_dword(pdev, box_ctl, &config)) { + config |= SNBEP_PMON_BOX_CTL_FRZ; + pci_write_config_dword(pdev, box_ctl, config); + } } static void snbep_uncore_pci_enable_box(struct intel_uncore_box *box) { struct pci_dev *pdev = box->pci_dev; int box_ctl = uncore_pci_box_ctl(box); - u32 config; + u32 config = 0; - pci_read_config_dword(pdev, box_ctl, &config); - config &= ~SNBEP_PMON_BOX_CTL_FRZ; - pci_write_config_dword(pdev, box_ctl, config); + if (!pci_read_config_dword(pdev, box_ctl, &config)) { + config &= ~SNBEP_PMON_BOX_CTL_FRZ; + pci_write_config_dword(pdev, box_ctl, config); + } } static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box, struct perf_event *event) @@ -156,7 +158,7 @@ static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, struct pe { struct pci_dev *pdev = box->pci_dev; struct hw_perf_event *hwc = &event->hw; - u64 count; + u64 count = 0; pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count); pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1); @@ -603,11 +605,12 @@ static struct pci_driver snbep_uncore_pci_driver = { /* * build pci bus to socket mapping */ -static void snbep_pci2phy_map_init(void) +static int snbep_pci2phy_map_init(void) { struct pci_dev *ubox_dev = NULL; int i, bus, nodeid; - u32 config; + int err = 0; + u32 config = 0; while (1) { /* find the UBOX device */ @@ -618,10 +621,14 @@ static void snbep_pci2phy_map_init(void) break; bus = ubox_dev->bus->number; /* get the Node ID of the local register */ - pci_read_config_dword(ubox_dev, 0x40, &config); + err = pci_read_config_dword(ubox_dev, 0x40, &config); + if (err) + break; nodeid = config; /* get the Node ID mapping */ - pci_read_config_dword(ubox_dev, 0x54, &config); + err = pci_read_config_dword(ubox_dev, 0x54, &config); + if (err) + break; /* * every three bits in the Node ID mapping register maps * to a particular node. @@ -633,7 +640,11 @@ static void snbep_pci2phy_map_init(void) } } }; - return; + + if (ubox_dev) + pci_dev_put(ubox_dev); + + return err ? pcibios_err_to_errno(err) : 0; } /* end of Sandy Bridge-EP uncore support */ @@ -1547,7 +1558,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; struct hw_perf_event_extra *reg1 = &hwc->extra_reg; - int port; /* adjust the main event selector and extra register index */ if (reg1->idx % 2) { @@ -1559,7 +1569,6 @@ void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) } /* adjust extra register config */ - port = reg1->idx / 6 + box->pmu->pmu_idx * 4; switch (reg1->idx % 6) { case 2: /* shift the 8~15 bits to the 0~7 bits */ @@ -2578,9 +2587,11 @@ static int __init uncore_pci_init(void) switch (boot_cpu_data.x86_model) { case 45: /* Sandy Bridge-EP */ + ret = snbep_pci2phy_map_init(); + if (ret) + return ret; pci_uncores = snbep_pci_uncores; uncore_pci_driver = &snbep_uncore_pci_driver; - snbep_pci2phy_map_init(); break; default: return 0; @@ -2926,6 +2937,9 @@ static int __init intel_uncore_init(void) if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) return -ENODEV; + if (cpu_has_hypervisor) + return -ENODEV; + ret = uncore_pci_init(); if (ret) goto fail; diff --git a/arch/x86/kernel/cpu/perf_event_knc.c b/arch/x86/kernel/cpu/perf_event_knc.c index 7c46bfdbc373..4b7731bf23a8 100644 --- a/arch/x86/kernel/cpu/perf_event_knc.c +++ b/arch/x86/kernel/cpu/perf_event_knc.c @@ -3,6 +3,8 @@ #include <linux/perf_event.h> #include <linux/types.h> +#include <asm/hardirq.h> + #include "perf_event.h" static const u64 knc_perfmon_event_map[] = @@ -173,30 +175,100 @@ static void knc_pmu_enable_all(int added) static inline void knc_pmu_disable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val; val = hwc->config; - if (cpuc->enabled) - val &= ~ARCH_PERFMON_EVENTSEL_ENABLE; + val &= ~ARCH_PERFMON_EVENTSEL_ENABLE; (void)wrmsrl_safe(hwc->config_base + hwc->idx, val); } static void knc_pmu_enable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val; val = hwc->config; - if (cpuc->enabled) - val |= ARCH_PERFMON_EVENTSEL_ENABLE; + val |= ARCH_PERFMON_EVENTSEL_ENABLE; (void)wrmsrl_safe(hwc->config_base + hwc->idx, val); } +static inline u64 knc_pmu_get_status(void) +{ + u64 status; + + rdmsrl(MSR_KNC_IA32_PERF_GLOBAL_STATUS, status); + + return status; +} + +static inline void knc_pmu_ack_status(u64 ack) +{ + wrmsrl(MSR_KNC_IA32_PERF_GLOBAL_OVF_CONTROL, ack); +} + +static int knc_pmu_handle_irq(struct pt_regs *regs) +{ + struct perf_sample_data data; + struct cpu_hw_events *cpuc; + int handled = 0; + int bit, loops; + u64 status; + + cpuc = &__get_cpu_var(cpu_hw_events); + + knc_pmu_disable_all(); + + status = knc_pmu_get_status(); + if (!status) { + knc_pmu_enable_all(0); + return handled; + } + + loops = 0; +again: + knc_pmu_ack_status(status); + if (++loops > 100) { + WARN_ONCE(1, "perf: irq loop stuck!\n"); + perf_event_print_debug(); + goto done; + } + + inc_irq_stat(apic_perf_irqs); + + for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) { + struct perf_event *event = cpuc->events[bit]; + + handled++; + + if (!test_bit(bit, cpuc->active_mask)) + continue; + + if (!intel_pmu_save_and_restart(event)) + continue; + + perf_sample_data_init(&data, 0, event->hw.last_period); + + if (perf_event_overflow(event, &data, regs)) + x86_pmu_stop(event, 0); + } + + /* + * Repeat if there is more work to be done: + */ + status = knc_pmu_get_status(); + if (status) + goto again; + +done: + knc_pmu_enable_all(0); + + return handled; +} + + PMU_FORMAT_ATTR(event, "config:0-7" ); PMU_FORMAT_ATTR(umask, "config:8-15" ); PMU_FORMAT_ATTR(edge, "config:18" ); @@ -214,7 +286,7 @@ static struct attribute *intel_knc_formats_attr[] = { static __initconst struct x86_pmu knc_pmu = { .name = "knc", - .handle_irq = x86_pmu_handle_irq, + .handle_irq = knc_pmu_handle_irq, .disable_all = knc_pmu_disable_all, .enable_all = knc_pmu_enable_all, .enable = knc_pmu_enable_event, @@ -226,12 +298,11 @@ static __initconst struct x86_pmu knc_pmu = { .event_map = knc_pmu_event_map, .max_events = ARRAY_SIZE(knc_perfmon_event_map), .apic = 1, - .max_period = (1ULL << 31) - 1, + .max_period = (1ULL << 39) - 1, .version = 0, .num_counters = 2, - /* in theory 40 bits, early silicon is buggy though */ - .cntval_bits = 32, - .cntval_mask = (1ULL << 32) - 1, + .cntval_bits = 40, + .cntval_mask = (1ULL << 40) - 1, .get_event_constraints = x86_get_event_constraints, .event_constraints = knc_event_constraints, .format_attrs = intel_knc_formats_attr, diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c index e4dd0f7a0453..7d0270bd793e 100644 --- a/arch/x86/kernel/cpu/perf_event_p6.c +++ b/arch/x86/kernel/cpu/perf_event_p6.c @@ -8,13 +8,106 @@ */ static const u64 p6_perfmon_event_map[] = { - [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, - [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, - [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, - [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, - [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, + [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, /* CPU_CLK_UNHALTED */ + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, /* INST_RETIRED */ + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, /* L2_RQSTS:M:E:S:I */ + [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, /* L2_RQSTS:I */ + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, /* BR_INST_RETIRED */ + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, /* BR_MISS_PRED_RETIRED */ + [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, /* BUS_DRDY_CLOCKS */ + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00a2, /* RESOURCE_STALLS */ + +}; + +static __initconst u64 p6_hw_cache_event_ids + [PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX] = +{ + [ C(L1D) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0043, /* DATA_MEM_REFS */ + [ C(RESULT_MISS) ] = 0x0045, /* DCU_LINES_IN */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0x0f29, /* L2_LD:M:E:S:I */ + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(L1I ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0080, /* IFU_IFETCH */ + [ C(RESULT_MISS) ] = 0x0f28, /* L2_IFETCH:M:E:S:I */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(LL ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0x0025, /* L2_M_LINES_INM */ + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(DTLB) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0043, /* DATA_MEM_REFS */ + [ C(RESULT_MISS) ] = 0, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(ITLB) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x0080, /* IFU_IFETCH */ + [ C(RESULT_MISS) ] = 0x0085, /* ITLB_MISS */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, + [ C(BPU ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED */ + [ C(RESULT_MISS) ] = 0x00c5, /* BR_MISS_PRED_RETIRED */ + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, }; static u64 p6_pmu_event_map(int hw_event) @@ -34,7 +127,7 @@ static struct event_constraint p6_event_constraints[] = { INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FLOPS */ INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */ - INTEL_EVENT_CONSTRAINT(0x11, 0x1), /* FP_ASSIST */ + INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */ @@ -64,25 +157,25 @@ static void p6_pmu_enable_all(int added) static inline void p6_pmu_disable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val = P6_NOP_EVENT; - if (cpuc->enabled) - val |= ARCH_PERFMON_EVENTSEL_ENABLE; - (void)wrmsrl_safe(hwc->config_base, val); } static void p6_pmu_enable_event(struct perf_event *event) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 val; val = hwc->config; - if (cpuc->enabled) - val |= ARCH_PERFMON_EVENTSEL_ENABLE; + + /* + * p6 only has a global event enable, set on PerfEvtSel0 + * We "disable" events by programming P6_NOP_EVENT + * and we rely on p6_pmu_enable_all() being called + * to actually enable the events. + */ (void)wrmsrl_safe(hwc->config_base, val); } @@ -158,5 +251,9 @@ __init int p6_pmu_init(void) x86_pmu = p6_pmu; + memcpy(hw_cache_event_ids, p6_hw_cache_event_ids, + sizeof(hw_cache_event_ids)); + + return 0; } diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index ed858e9e9a74..df06ade26bef 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1077,6 +1077,9 @@ void __init memblock_x86_fill(void) memblock_add(ei->addr, ei->size); } + /* throw away partial pages */ + memblock_trim_memory(PAGE_SIZE); + memblock_dump_all(); } diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index a1193aef6d7d..88b725aa1d52 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -1035,7 +1035,7 @@ ENTRY(xen_sysenter_target) ENTRY(xen_hypervisor_callback) CFI_STARTPROC - pushl_cfi $0 + pushl_cfi $-1 /* orig_ax = -1 => not a system call */ SAVE_ALL TRACE_IRQS_OFF @@ -1077,14 +1077,16 @@ ENTRY(xen_failsafe_callback) 2: mov 8(%esp),%es 3: mov 12(%esp),%fs 4: mov 16(%esp),%gs + /* EAX == 0 => Category 1 (Bad segment) + EAX != 0 => Category 2 (Bad IRET) */ testl %eax,%eax popl_cfi %eax lea 16(%esp),%esp CFI_ADJUST_CFA_OFFSET -16 jz 5f addl $16,%esp - jmp iret_exc # EAX != 0 => Category 2 (Bad IRET) -5: pushl_cfi $0 # EAX == 0 => Category 1 (Bad segment) + jmp iret_exc +5: pushl_cfi $-1 /* orig_ax = -1 => not a system call */ SAVE_ALL jmp ret_from_exception CFI_ENDPROC diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 0c58952d64e8..b51b2c7ee51f 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -1435,7 +1435,7 @@ ENTRY(xen_failsafe_callback) CFI_RESTORE r11 addq $0x30,%rsp CFI_ADJUST_CFA_OFFSET -0x30 - pushq_cfi $0 + pushq_cfi $-1 /* orig_ax = -1 => not a system call */ SAVE_ALL jmp error_exit CFI_ENDPROC diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index b3e5e51bc907..4180a874c764 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -247,7 +247,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code) break; case KVM_PV_REASON_PAGE_NOT_PRESENT: /* page is swapped out by the host. */ + rcu_irq_enter(); + exit_idle(); kvm_async_pf_task_wait((u32)read_cr2()); + rcu_irq_exit(); break; case KVM_PV_REASON_PAGE_READY: rcu_irq_enter(); diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 468e98dfd44e..ca45696f30fb 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -921,18 +921,19 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_64 if (max_pfn > max_low_pfn) { int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; + unsigned long start, end; + unsigned long start_pfn, end_pfn; - if (ei->addr + ei->size <= 1UL << 32) - continue; + for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, + NULL) { - if (ei->type == E820_RESERVED) + end = PFN_PHYS(end_pfn); + if (end <= (1UL<<32)) continue; + start = PFN_PHYS(start_pfn); max_pfn_mapped = init_memory_mapping( - ei->addr < 1UL << 32 ? 1UL << 32 : ei->addr, - ei->addr + ei->size); + max((1UL<<32), start), end); } /* can we preseve max_low_pfn ?*/ @@ -1048,6 +1049,18 @@ void __init setup_arch(char **cmdline_p) arch_init_ideal_nops(); register_refined_jiffies(CLOCK_TICK_RATE); + +#ifdef CONFIG_EFI + /* Once setup is done above, disable efi_enabled on mismatched + * firmware/kernel archtectures since there is no support for + * runtime services. + */ + if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) { + pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n"); + efi_unmap_memmap(); + efi_enabled = 0; + } +#endif } #ifdef CONFIG_X86_32 diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 29ad351804e9..70b27ee6118e 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -824,10 +824,8 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) mce_notify_process(); #endif /* CONFIG_X86_64 && CONFIG_X86_MCE */ - if (thread_info_flags & _TIF_UPROBE) { - clear_thread_flag(TIF_UPROBE); + if (thread_info_flags & _TIF_UPROBE) uprobe_notify_resume(regs); - } /* deal with pending signal delivery */ if (thread_info_flags & _TIF_SIGPENDING) diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c index 9538f00827a9..aafa5557b396 100644 --- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -651,31 +651,19 @@ void arch_uprobe_abort_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) /* * Skip these instructions as per the currently known x86 ISA. - * 0x66* { 0x90 | 0x0f 0x1f | 0x0f 0x19 | 0x87 0xc0 } + * rep=0x66*; nop=0x90 */ static bool __skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs) { int i; for (i = 0; i < MAX_UINSN_BYTES; i++) { - if ((auprobe->insn[i] == 0x66)) + if (auprobe->insn[i] == 0x66) continue; if (auprobe->insn[i] == 0x90) return true; - if (i == (MAX_UINSN_BYTES - 1)) - break; - - if ((auprobe->insn[i] == 0x0f) && (auprobe->insn[i+1] == 0x1f)) - return true; - - if ((auprobe->insn[i] == 0x0f) && (auprobe->insn[i+1] == 0x19)) - return true; - - if ((auprobe->insn[i] == 0x87) && (auprobe->insn[i+1] == 0xc0)) - return true; - break; } return false; diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index c6e6b721b6ee..43e9fadca5d0 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1311,7 +1311,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value) vcpu->arch.apic_base = value; if (apic_x2apic_mode(apic)) { u32 id = kvm_apic_id(apic); - u32 ldr = ((id & ~0xf) << 16) | (1 << (id & 0xf)); + u32 ldr = ((id >> 4) << 16) | (1 << (id & 0xf)); kvm_apic_set_ldr(apic, ldr); } apic->base_address = apic->vcpu->arch.apic_base & diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d289fee1ffb8..6f85fe0bf958 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2497,8 +2497,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep, } } - if (!is_error_pfn(pfn)) - kvm_release_pfn_clean(pfn); + kvm_release_pfn_clean(pfn); } static void nonpaging_new_cr3(struct kvm_vcpu *vcpu) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index ab1f6a93b527..d7aea41563b3 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -35,40 +35,44 @@ struct map_range { unsigned page_size_mask; }; -static void __init find_early_table_space(struct map_range *mr, unsigned long end, - int use_pse, int use_gbpages) +/* + * First calculate space needed for kernel direct mapping page tables to cover + * mr[0].start to mr[nr_range - 1].end, while accounting for possible 2M and 1GB + * pages. Then find enough contiguous space for those page tables. + */ +static void __init find_early_table_space(struct map_range *mr, int nr_range) { - unsigned long puds, pmds, ptes, tables, start = 0, good_end = end; + int i; + unsigned long puds = 0, pmds = 0, ptes = 0, tables; + unsigned long start = 0, good_end; phys_addr_t base; - puds = (end + PUD_SIZE - 1) >> PUD_SHIFT; - tables = roundup(puds * sizeof(pud_t), PAGE_SIZE); - - if (use_gbpages) { - unsigned long extra; - - extra = end - ((end>>PUD_SHIFT) << PUD_SHIFT); - pmds = (extra + PMD_SIZE - 1) >> PMD_SHIFT; - } else - pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT; + for (i = 0; i < nr_range; i++) { + unsigned long range, extra; - tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE); + range = mr[i].end - mr[i].start; + puds += (range + PUD_SIZE - 1) >> PUD_SHIFT; - if (use_pse) { - unsigned long extra; + if (mr[i].page_size_mask & (1 << PG_LEVEL_1G)) { + extra = range - ((range >> PUD_SHIFT) << PUD_SHIFT); + pmds += (extra + PMD_SIZE - 1) >> PMD_SHIFT; + } else { + pmds += (range + PMD_SIZE - 1) >> PMD_SHIFT; + } - extra = end - ((end>>PMD_SHIFT) << PMD_SHIFT); + if (mr[i].page_size_mask & (1 << PG_LEVEL_2M)) { + extra = range - ((range >> PMD_SHIFT) << PMD_SHIFT); #ifdef CONFIG_X86_32 - extra += PMD_SIZE; + extra += PMD_SIZE; #endif - /* The first 2/4M doesn't use large pages. */ - if (mr->start < PMD_SIZE) - extra += mr->end - mr->start; - - ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT; - } else - ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT; + ptes += (extra + PAGE_SIZE - 1) >> PAGE_SHIFT; + } else { + ptes += (range + PAGE_SIZE - 1) >> PAGE_SHIFT; + } + } + tables = roundup(puds * sizeof(pud_t), PAGE_SIZE); + tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE); tables += roundup(ptes * sizeof(pte_t), PAGE_SIZE); #ifdef CONFIG_X86_32 @@ -86,7 +90,7 @@ static void __init find_early_table_space(struct map_range *mr, unsigned long en pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT); printk(KERN_DEBUG "kernel direct mapping tables up to %#lx @ [mem %#010lx-%#010lx]\n", - end - 1, pgt_buf_start << PAGE_SHIFT, + mr[nr_range - 1].end - 1, pgt_buf_start << PAGE_SHIFT, (pgt_buf_top << PAGE_SHIFT) - 1); } @@ -267,7 +271,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, * nodes are discovered. */ if (!after_bootmem) - find_early_table_space(&mr[0], end, use_pse, use_gbpages); + find_early_table_space(mr, nr_range); for (i = 0; i < nr_range; i++) ret = kernel_physical_mapping_init(mr[i].start, mr[i].end, diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 2b6b4a3c8beb..3baff255adac 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -386,7 +386,8 @@ phys_pte_init(pte_t *pte_page, unsigned long addr, unsigned long end, * these mappings are more intelligent. */ if (pte_val(*pte)) { - pages++; + if (!after_bootmem) + pages++; continue; } @@ -451,6 +452,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, * attributes. */ if (page_size_mask & (1 << PG_LEVEL_2M)) { + if (!after_bootmem) + pages++; last_map_addr = next; continue; } @@ -526,6 +529,8 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, * attributes. */ if (page_size_mask & (1 << PG_LEVEL_1G)) { + if (!after_bootmem) + pages++; last_map_addr = next; continue; } diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 26b8a8514ee5..48768df2471a 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -55,7 +55,7 @@ u64 op_x86_get_ctrl(struct op_x86_model_spec const *model, val |= counter_config->extra; event &= model->event_mask ? model->event_mask : 0xFF; val |= event & 0xFF; - val |= (event & 0x0F00) << 24; + val |= (u64)(event & 0x0F00) << 24; return val; } diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index aded2a91162a..ad4439145f85 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -70,11 +70,15 @@ EXPORT_SYMBOL(efi); struct efi_memory_map memmap; bool efi_64bit; -static bool efi_native; static struct efi efi_phys __initdata; static efi_system_table_t efi_systab __initdata; +static inline bool efi_is_native(void) +{ + return IS_ENABLED(CONFIG_X86_64) == efi_64bit; +} + static int __init setup_noefi(char *arg) { efi_enabled = 0; @@ -420,7 +424,7 @@ void __init efi_reserve_boot_services(void) } } -static void __init efi_unmap_memmap(void) +void __init efi_unmap_memmap(void) { if (memmap.map) { early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size); @@ -432,7 +436,7 @@ void __init efi_free_boot_services(void) { void *p; - if (!efi_native) + if (!efi_is_native()) return; for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { @@ -684,12 +688,10 @@ void __init efi_init(void) return; } efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab; - efi_native = !efi_64bit; #else efi_phys.systab = (efi_system_table_t *) (boot_params.efi_info.efi_systab | ((__u64)boot_params.efi_info.efi_systab_hi<<32)); - efi_native = efi_64bit; #endif if (efi_systab_init(efi_phys.systab)) { @@ -723,7 +725,7 @@ void __init efi_init(void) * that doesn't match the kernel 32/64-bit mode. */ - if (!efi_native) + if (!efi_is_native()) pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n"); else if (efi_runtime_init()) { efi_enabled = 0; @@ -735,7 +737,7 @@ void __init efi_init(void) return; } #ifdef CONFIG_X86_32 - if (efi_native) { + if (efi_is_native()) { x86_platform.get_wallclock = efi_get_time; x86_platform.set_wallclock = efi_set_rtc_mmss; } @@ -810,6 +812,16 @@ void __iomem *efi_lookup_mapped_addr(u64 phys_addr) return NULL; } +void efi_memory_uc(u64 addr, unsigned long size) +{ + unsigned long page_shift = 1UL << EFI_PAGE_SHIFT; + u64 npages; + + npages = round_up(size, page_shift) / page_shift; + memrange_efi_to_native(&addr, &npages); + set_memory_uc(addr, npages); +} + /* * This function will switch the EFI runtime services to virtual mode. * Essentially, look through the EFI memmap and map every region that @@ -823,7 +835,7 @@ void __init efi_enter_virtual_mode(void) efi_memory_desc_t *md, *prev_md = NULL; efi_status_t status; unsigned long size; - u64 end, systab, addr, npages, end_pfn; + u64 end, systab, end_pfn; void *p, *va, *new_memmap = NULL; int count = 0; @@ -834,7 +846,7 @@ void __init efi_enter_virtual_mode(void) * non-native EFI */ - if (!efi_native) { + if (!efi_is_native()) { efi_unmap_memmap(); return; } @@ -879,10 +891,14 @@ void __init efi_enter_virtual_mode(void) end_pfn = PFN_UP(end); if (end_pfn <= max_low_pfn_mapped || (end_pfn > (1UL << (32 - PAGE_SHIFT)) - && end_pfn <= max_pfn_mapped)) + && end_pfn <= max_pfn_mapped)) { va = __va(md->phys_addr); - else - va = efi_ioremap(md->phys_addr, size, md->type); + + if (!(md->attribute & EFI_MEMORY_WB)) + efi_memory_uc((u64)(unsigned long)va, size); + } else + va = efi_ioremap(md->phys_addr, size, + md->type, md->attribute); md->virt_addr = (u64) (unsigned long) va; @@ -892,13 +908,6 @@ void __init efi_enter_virtual_mode(void) continue; } - if (!(md->attribute & EFI_MEMORY_WB)) { - addr = md->virt_addr; - npages = md->num_pages; - memrange_efi_to_native(&addr, &npages); - set_memory_uc(addr, npages); - } - systab = (u64) (unsigned long) efi_phys.systab; if (md->phys_addr <= systab && systab < end) { systab += md->virt_addr - md->phys_addr; diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index ac3aa54e2654..95fd505dfeb6 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -82,7 +82,7 @@ void __init efi_call_phys_epilog(void) } void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, - u32 type) + u32 type, u64 attribute) { unsigned long last_map_pfn; @@ -92,8 +92,11 @@ void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size); if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) { unsigned long top = last_map_pfn << PAGE_SHIFT; - efi_ioremap(top, size - (top - phys_addr), type); + efi_ioremap(top, size - (top - phys_addr), type, attribute); } + if (!(attribute & EFI_MEMORY_WB)) + efi_memory_uc((u64)(unsigned long)__va(phys_addr), size); + return (void __iomem *)__va(phys_addr); } diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e3497f240eab..586d83812b67 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -81,8 +81,6 @@ #include "smp.h" #include "multicalls.h" -#include <xen/events.h> - EXPORT_SYMBOL_GPL(hypercall_page); DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu); diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 08b4c5209384..b34b5cda5ae1 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -236,7 +236,7 @@ config CMA_SIZE_PERCENTAGE choice prompt "Selected region size" - default CMA_SIZE_SEL_ABSOLUTE + default CMA_SIZE_SEL_MBYTES config CMA_SIZE_SEL_MBYTES bool "Use mega bytes value only" diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c index 560a7173f810..bc256b641027 100644 --- a/drivers/base/dma-coherent.c +++ b/drivers/base/dma-coherent.c @@ -191,9 +191,8 @@ EXPORT_SYMBOL(dma_release_from_coherent); * This checks whether the memory was allocated from the per-device * coherent memory pool and if so, maps that memory to the provided vma. * - * Returns 1 if we correctly mapped the memory, or 0 if - * dma_release_coherent() should proceed with mapping memory from - * generic pools. + * Returns 1 if we correctly mapped the memory, or 0 if the caller should + * proceed with mapping memory from generic pools. */ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma, void *vaddr, size_t size, int *ret) diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index 9a1469474f55..612afcc5a938 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -27,15 +27,12 @@ #include <linux/mm.h> #include <linux/mutex.h> #include <linux/page-isolation.h> +#include <linux/sizes.h> #include <linux/slab.h> #include <linux/swap.h> #include <linux/mm_types.h> #include <linux/dma-contiguous.h> -#ifndef SZ_1M -#define SZ_1M (1 << 20) -#endif - struct cma { unsigned long base_pfn; unsigned long count; diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig index 6be390bd8bd1..f0d30543fcce 100644 --- a/drivers/base/regmap/Kconfig +++ b/drivers/base/regmap/Kconfig @@ -3,7 +3,7 @@ # subsystems should select the appropriate symbols. config REGMAP - default y if (REGMAP_I2C || REGMAP_SPI) + default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_MMIO || REGMAP_IRQ) select LZO_COMPRESS select LZO_DECOMPRESS select IRQ_DOMAIN if REGMAP_IRQ diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 677cd6e4e1a1..d4c12180c654 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -90,6 +90,17 @@ config DW_DMAC Support the Synopsys DesignWare AHB DMA controller. This can be integrated in chips such as the Atmel AT32ap7000. +config DW_DMAC_BIG_ENDIAN_IO + bool "Use big endian I/O register access" + default y if AVR32 + depends on DW_DMAC + help + Say yes here to use big endian I/O access when reading and writing + to the DMA controller registers. This is needed on some platforms, + like the Atmel AVR32 architecture. + + If unsure, use the default setting. + config AT_HDMAC tristate "Atmel AHB DMA support" depends on ARCH_AT91 diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h index ff39fa6cd2bc..88965597b7d0 100644 --- a/drivers/dma/dw_dmac_regs.h +++ b/drivers/dma/dw_dmac_regs.h @@ -98,9 +98,17 @@ struct dw_dma_regs { u32 DW_PARAMS; }; +#ifdef CONFIG_DW_DMAC_BIG_ENDIAN_IO +#define dma_readl_native ioread32be +#define dma_writel_native iowrite32be +#else +#define dma_readl_native readl +#define dma_writel_native writel +#endif + /* To access the registers in early stage of probe */ #define dma_read_byaddr(addr, name) \ - readl((addr) + offsetof(struct dw_dma_regs, name)) + dma_readl_native((addr) + offsetof(struct dw_dma_regs, name)) /* Bitfields in DW_PARAMS */ #define DW_PARAMS_NR_CHAN 8 /* number of channels */ @@ -216,9 +224,9 @@ __dwc_regs(struct dw_dma_chan *dwc) } #define channel_readl(dwc, name) \ - readl(&(__dwc_regs(dwc)->name)) + dma_readl_native(&(__dwc_regs(dwc)->name)) #define channel_writel(dwc, name, val) \ - writel((val), &(__dwc_regs(dwc)->name)) + dma_writel_native((val), &(__dwc_regs(dwc)->name)) static inline struct dw_dma_chan *to_dw_dma_chan(struct dma_chan *chan) { @@ -246,9 +254,9 @@ static inline struct dw_dma_regs __iomem *__dw_regs(struct dw_dma *dw) } #define dma_readl(dw, name) \ - readl(&(__dw_regs(dw)->name)) + dma_readl_native(&(__dw_regs(dw)->name)) #define dma_writel(dw, name, val) \ - writel((val), &(__dw_regs(dw)->name)) + dma_writel_native((val), &(__dw_regs(dw)->name)) #define channel_set_bit(dw, reg, mask) \ dma_writel(dw, reg, ((mask) << 8) | (mask)) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 5a297a26211d..cc8e7c78a23c 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -170,8 +170,11 @@ static int __amd64_set_scrub_rate(struct pci_dev *ctl, u32 new_bw, u32 min_rate) * memory controller and apply to register. Search for the first * bandwidth entry that is greater or equal than the setting requested * and program that. If at last entry, turn off DRAM scrubbing. + * + * If no suitable bandwidth is found, turn off DRAM scrubbing entirely + * by falling back to the last element in scrubrates[]. */ - for (i = 0; i < ARRAY_SIZE(scrubrates); i++) { + for (i = 0; i < ARRAY_SIZE(scrubrates) - 1; i++) { /* * skip scrub rates which aren't recommended * (see F10 BKDG, F3x58) @@ -181,12 +184,6 @@ static int __amd64_set_scrub_rate(struct pci_dev *ctl, u32 new_bw, u32 min_rate) if (scrubrates[i].bandwidth <= new_bw) break; - - /* - * if no suitable bandwidth found, turn off DRAM scrubbing - * entirely by falling back to the last element in the - * scrubrates array. - */ } scrubval = scrubrates[i].scrubval; diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index 09e11a5d921a..fd9d0af4d536 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -206,7 +206,7 @@ static int drm_fbdev_cma_create(struct drm_fb_helper *helper, size_t size; int ret; - DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n", + DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d)\n", sizes->surface_width, sizes->surface_height, sizes->surface_bpp); @@ -220,7 +220,7 @@ static int drm_fbdev_cma_create(struct drm_fb_helper *helper, size = mode_cmd.pitches[0] * mode_cmd.height; obj = drm_gem_cma_create(dev, size); - if (!obj) + if (IS_ERR(obj)) return -ENOMEM; fbi = framebuffer_alloc(0, dev->dev); diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c index 441ebc1bdbef..d4b20ceda3fb 100644 --- a/drivers/gpu/drm/drm_info.c +++ b/drivers/gpu/drm/drm_info.c @@ -205,8 +205,6 @@ static int drm_gem_one_name_info(int id, void *ptr, void *data) struct drm_gem_object *obj = ptr; struct seq_file *m = data; - seq_printf(m, "name %d size %zd\n", obj->name, obj->size); - seq_printf(m, "%6d %8zd %7d %8d\n", obj->name, obj->size, atomic_read(&obj->handle_count), diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c index aaeb6f8d69ce..b8a282ea8751 100644 --- a/drivers/gpu/drm/drm_platform.c +++ b/drivers/gpu/drm/drm_platform.c @@ -64,7 +64,6 @@ int drm_get_platform_dev(struct platform_device *platdev, } if (drm_core_check_feature(dev, DRIVER_MODESET)) { - dev_set_drvdata(&platdev->dev, dev); ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); if (ret) goto err_g1; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index aac4e5e1a5b9..6770ee6084b4 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -118,6 +118,13 @@ module_param_named(i915_enable_ppgtt, i915_enable_ppgtt, int, 0600); MODULE_PARM_DESC(i915_enable_ppgtt, "Enable PPGTT (default: true)"); +unsigned int i915_preliminary_hw_support __read_mostly = 0; +module_param_named(preliminary_hw_support, i915_preliminary_hw_support, int, 0600); +MODULE_PARM_DESC(preliminary_hw_support, + "Enable preliminary hardware support. " + "Enable Haswell and ValleyView Support. " + "(default: false)"); + static struct drm_driver driver; extern int intel_agp_enabled; @@ -826,6 +833,12 @@ i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct intel_device_info *intel_info = (struct intel_device_info *) ent->driver_data; + if (intel_info->is_haswell || intel_info->is_valleyview) + if(!i915_preliminary_hw_support) { + DRM_ERROR("Preliminary hardware support disabled\n"); + return -ENODEV; + } + /* Only bind to function 0 of the device. Early generations * used function 1 as a placeholder for multi-head. This causes * us confusion instead, especially on the systems where both diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index b84f7861e438..f511fa2f4168 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1217,6 +1217,7 @@ extern int i915_enable_rc6 __read_mostly; extern int i915_enable_fbc __read_mostly; extern bool i915_enable_hangcheck __read_mostly; extern int i915_enable_ppgtt __read_mostly; +extern unsigned int i915_preliminary_hw_support __read_mostly; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d33d02d13c96..107f09befe92 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1407,8 +1407,10 @@ out: return VM_FAULT_NOPAGE; case -ENOMEM: return VM_FAULT_OOM; + case -ENOSPC: + return VM_FAULT_SIGBUS; default: - WARN_ON_ONCE(ret); + WARN_ONCE(ret, "unhandled error in i915_gem_fault: %i\n", ret); return VM_FAULT_SIGBUS; } } @@ -1822,10 +1824,11 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj) sg_set_page(sg, page, PAGE_SIZE, 0); } + obj->pages = st; + if (i915_gem_object_needs_bit17_swizzle(obj)) i915_gem_object_do_bit_17_swizzle(obj); - obj->pages = st; return 0; err_pages: diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 893f30164b7e..f78061af7045 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -219,20 +219,7 @@ static void intel_crt_mode_set(struct drm_encoder *encoder, intel_encoder_to_crt(to_intel_encoder(encoder)); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct drm_i915_private *dev_priv = dev->dev_private; - int dpll_md_reg; - u32 adpa, dpll_md; - - dpll_md_reg = DPLL_MD(intel_crtc->pipe); - - /* - * Disable separate mode multiplier used when cloning SDVO to CRT - * XXX this needs to be adjusted when we really are cloning - */ - if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) { - dpll_md = I915_READ(dpll_md_reg); - I915_WRITE(dpll_md_reg, - dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK); - } + u32 adpa; adpa = ADPA_HOTPLUG_BITS; if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 682bd3729baf..461a637f1ef7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7892,6 +7892,34 @@ struct intel_quirk { void (*hook)(struct drm_device *dev); }; +/* For systems that don't have a meaningful PCI subdevice/subvendor ID */ +struct intel_dmi_quirk { + void (*hook)(struct drm_device *dev); + const struct dmi_system_id (*dmi_id_list)[]; +}; + +static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) +{ + DRM_INFO("Backlight polarity reversed on %s\n", id->ident); + return 1; +} + +static const struct intel_dmi_quirk intel_dmi_quirks[] = { + { + .dmi_id_list = &(const struct dmi_system_id[]) { + { + .callback = intel_dmi_reverse_brightness, + .ident = "NCR Corporation", + .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, ""), + }, + }, + { } /* terminating entry */ + }, + .hook = quirk_invert_brightness, + }, +}; + static struct intel_quirk intel_quirks[] = { /* HP Mini needs pipe A force quirk (LP: #322104) */ { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, @@ -7931,6 +7959,10 @@ static void intel_init_quirks(struct drm_device *dev) q->subsystem_device == PCI_ANY_ID)) q->hook(dev); } + for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { + if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) + intel_dmi_quirks[i].hook(dev); + } } /* Disable the VGA plane that we never use */ diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1b727a5c9ee5..368ed8ef1600 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1797,7 +1797,8 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) if ((intel_dp->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) break; if (i == intel_dp->lane_count && voltage_tries == 5) { - if (++loop_tries == 5) { + ++loop_tries; + if (loop_tries == 5) { DRM_DEBUG_KMS("too many full retries, give up\n"); break; } @@ -1807,11 +1808,15 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) } /* Check to see if we've tried the same voltage 5 times */ - if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) != voltage) { - voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; - voltage_tries = 0; - } else + if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) { ++voltage_tries; + if (voltage_tries == 5) { + DRM_DEBUG_KMS("too many voltage retries, give up\n"); + break; + } + } else + voltage_tries = 0; + voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK; /* Compute new intel_dp->train_set as requested by target */ intel_get_adjust_train(intel_dp, link_status); diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index e3166df55daa..edba93b3474b 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -777,6 +777,14 @@ static const struct dmi_system_id intel_no_lvds[] = { DMI_MATCH(DMI_BOARD_NAME, "D525TUD"), }, }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Supermicro X7SPA-H", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"), + DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"), + }, + }, { } /* terminating entry */ }; diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 0007a4d9bf6e..c01d97db0061 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -139,6 +139,11 @@ struct intel_sdvo { /* DDC bus used by this SDVO encoder */ uint8_t ddc_bus; + + /* + * the sdvo flag gets lost in round trip: dtd->adjusted_mode->dtd + */ + uint8_t dtd_sdvo_flags; }; struct intel_sdvo_connector { @@ -984,6 +989,7 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo, return false; intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd); + intel_sdvo->dtd_sdvo_flags = input_dtd.part2.sdvo_flags; return true; } @@ -1092,6 +1098,8 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, * adjusted_mode. */ intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); + if (intel_sdvo->is_tv || intel_sdvo->is_lvds) + input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags; if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd)) DRM_INFO("Setting input timings on %s failed\n", SDVO_NAME(intel_sdvo)); @@ -2277,10 +2285,8 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device) intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1; } - /* SDVO LVDS is cloneable because the SDVO encoder does the upscaling, - * as opposed to native LVDS, where we upscale with the panel-fitter - * (and hence only the native LVDS resolution could be cloned). */ - intel_sdvo->base.cloneable = true; + /* SDVO LVDS is not cloneable because the input mode gets adjusted by the encoder */ + intel_sdvo->base.cloneable = false; intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo); if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector)) diff --git a/drivers/gpu/drm/nouveau/core/core/gpuobj.c b/drivers/gpu/drm/nouveau/core/core/gpuobj.c index 1f34549aff18..70586fde69cf 100644 --- a/drivers/gpu/drm/nouveau/core/core/gpuobj.c +++ b/drivers/gpu/drm/nouveau/core/core/gpuobj.c @@ -39,6 +39,11 @@ nouveau_gpuobj_destroy(struct nouveau_gpuobj *gpuobj) nv_wo32(gpuobj, i, 0x00000000); } + if (gpuobj->node) { + nouveau_mm_free(&nv_gpuobj(gpuobj->parent)->heap, + &gpuobj->node); + } + if (gpuobj->heap.block_size) nouveau_mm_fini(&gpuobj->heap); diff --git a/drivers/gpu/drm/nouveau/core/core/mm.c b/drivers/gpu/drm/nouveau/core/core/mm.c index bfddf87926dd..4d6206448670 100644 --- a/drivers/gpu/drm/nouveau/core/core/mm.c +++ b/drivers/gpu/drm/nouveau/core/core/mm.c @@ -236,7 +236,7 @@ nouveau_mm_fini(struct nouveau_mm *mm) int nodes = 0; list_for_each_entry(node, &mm->nodes, nl_entry) { - if (nodes++ == mm->heap_nodes) + if (WARN_ON(nodes++ == mm->heap_nodes)) return -EBUSY; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c index dcb5c2befc92..70ca7d5a1aa1 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c @@ -72,7 +72,7 @@ nouveau_bios_shadow_of(struct nouveau_bios *bios) } data = of_get_property(dn, "NVDA,BMP", &size); - if (data) { + if (data && size) { bios->size = size; bios->data = kmalloc(bios->size, GFP_KERNEL); if (bios->data) @@ -104,6 +104,9 @@ nouveau_bios_shadow_pramin(struct nouveau_bios *bios) goto out; bios->size = nv_rd08(bios, 0x700002) * 512; + if (!bios->size) + goto out; + bios->data = kmalloc(bios->size, GFP_KERNEL); if (bios->data) { for (i = 0; i < bios->size; i++) @@ -155,6 +158,9 @@ nouveau_bios_shadow_prom(struct nouveau_bios *bios) /* read entire bios image to system memory */ bios->size = nv_rd08(bios, 0x300002) * 512; + if (!bios->size) + goto out; + bios->data = kmalloc(bios->size, GFP_KERNEL); if (bios->data) { for (i = 0; i < bios->size; i++) @@ -186,14 +192,22 @@ nouveau_bios_shadow_acpi(struct nouveau_bios *bios) { struct pci_dev *pdev = nv_device(bios)->pdev; int ret, cnt, i; - u8 data[3]; - if (!nouveau_acpi_rom_supported(pdev)) + if (!nouveau_acpi_rom_supported(pdev)) { + bios->data = NULL; return; + } bios->size = 0; - if (nouveau_acpi_get_bios_chunk(data, 0, 3) == 3) - bios->size = data[2] * 512; + bios->data = kmalloc(4096, GFP_KERNEL); + if (bios->data) { + if (nouveau_acpi_get_bios_chunk(bios->data, 0, 4096) == 4096) + bios->size = bios->data[2] * 512; + kfree(bios->data); + } + + if (!bios->size) + return; bios->data = kmalloc(bios->size, GFP_KERNEL); for (i = 0; bios->data && i < bios->size; i += cnt) { @@ -229,12 +243,14 @@ nouveau_bios_shadow_pci(struct nouveau_bios *bios) static int nouveau_bios_score(struct nouveau_bios *bios, const bool writeable) { - if (!bios->data || bios->data[0] != 0x55 || bios->data[1] != 0xAA) { + if (bios->size < 3 || !bios->data || bios->data[0] != 0x55 || + bios->data[1] != 0xAA) { nv_info(bios, "... signature not found\n"); return 0; } - if (nvbios_checksum(bios->data, bios->data[2] * 512)) { + if (nvbios_checksum(bios->data, + min_t(u32, bios->data[2] * 512, bios->size))) { nv_info(bios, "... checksum invalid\n"); /* if a ro image is somewhat bad, it's probably all rubbish */ return writeable ? 2 : 1; diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/pll.c b/drivers/gpu/drm/nouveau/core/subdev/bios/pll.c index 5e5f4cddae3c..f835501203e5 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/pll.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/pll.c @@ -157,11 +157,10 @@ pll_map_reg(struct nouveau_bios *bios, u32 reg, u32 *type, u8 *ver, u8 *len) while (map->reg) { if (map->reg == reg && *ver >= 0x20) { u16 addr = (data += hdr); + *type = map->type; while (cnt--) { - if (nv_ro32(bios, data) == map->reg) { - *type = map->type; + if (nv_ro32(bios, data) == map->reg) return data; - } data += *len; } return addr; @@ -200,11 +199,10 @@ pll_map_type(struct nouveau_bios *bios, u8 type, u32 *reg, u8 *ver, u8 *len) while (map->reg) { if (map->type == type && *ver >= 0x20) { u16 addr = (data += hdr); + *reg = map->reg; while (cnt--) { - if (nv_ro32(bios, data) == map->reg) { - *reg = map->reg; + if (nv_ro32(bios, data) == map->reg) return data; - } data += *len; } return addr; diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c index 42d7539e6525..27fb1af7a779 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c @@ -237,6 +237,7 @@ nv50_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine, return ret; priv->base.ram.stolen = (u64)nv_rd32(priv, 0x100e10) << 12; + priv->base.ram.type = NV_MEM_TYPE_STOLEN; break; default: ret = nouveau_mm_init(&priv->base.vram, rsvd_head, size, diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c index 0203e1e12caa..49050d991e75 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c +++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c @@ -92,7 +92,8 @@ nv41_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv04_vmmgr_priv *priv; int ret; - if (!nouveau_boolopt(device->cfgopt, "NvPCIE", true)) { + if (pci_find_capability(device->pdev, PCI_CAP_ID_AGP) || + !nouveau_boolopt(device->cfgopt, "NvPCIE", true)) { return nouveau_object_ctor(parent, engine, &nv04_vmmgr_oclass, data, size, pobject); } diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c index 0ac18d05a146..aa8131436e3d 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c +++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c @@ -163,7 +163,8 @@ nv44_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv04_vmmgr_priv *priv; int ret; - if (!nouveau_boolopt(device->cfgopt, "NvPCIE", true)) { + if (pci_find_capability(device->pdev, PCI_CAP_ID_AGP) || + !nouveau_boolopt(device->cfgopt, "NvPCIE", true)) { return nouveau_object_ctor(parent, engine, &nv04_vmmgr_oclass, data, size, pobject); } diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 8f98e5a8c488..d2f8ffeed742 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -530,9 +530,11 @@ nouveau_page_flip_reserve(struct nouveau_bo *old_bo, if (ret) goto fail; - ret = ttm_bo_reserve(&old_bo->bo, false, false, false, 0); - if (ret) - goto fail_unreserve; + if (likely(old_bo != new_bo)) { + ret = ttm_bo_reserve(&old_bo->bo, false, false, false, 0); + if (ret) + goto fail_unreserve; + } return 0; @@ -551,8 +553,10 @@ nouveau_page_flip_unreserve(struct nouveau_bo *old_bo, nouveau_bo_fence(new_bo, fence); ttm_bo_unreserve(&new_bo->bo); - nouveau_bo_fence(old_bo, fence); - ttm_bo_unreserve(&old_bo->bo); + if (likely(old_bo != new_bo)) { + nouveau_bo_fence(old_bo, fence); + ttm_bo_unreserve(&old_bo->bo); + } nouveau_bo_unpin(old_bo); } diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 49cbb3795a10..ba498f8e47a2 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -184,6 +184,7 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, struct radeon_backlight_privdata *pdata; struct radeon_encoder_atom_dig *dig; u8 backlight_level; + char bl_name[16]; if (!radeon_encoder->enc_priv) return; @@ -203,7 +204,9 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, memset(&props, 0, sizeof(props)); props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; - bd = backlight_device_register("radeon_bl", &drm_connector->kdev, + snprintf(bl_name, sizeof(bl_name), + "radeon_bl%d", dev->primary->index); + bd = backlight_device_register(bl_name, &drm_connector->kdev, pdata, &radeon_atom_backlight_ops, &props); if (IS_ERR(bd)) { DRM_ERROR("Backlight registration failed\n"); diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 573ed1bc6cf7..30271b641913 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -2829,6 +2829,7 @@ static bool evergreen_vm_reg_valid(u32 reg) case CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS: return true; default: + DRM_ERROR("Invalid register 0x%x in CS\n", reg); return false; } } diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 8c74c729586d..81e6a568c29d 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1538,26 +1538,31 @@ void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe, { struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index]; uint32_t r600_flags = cayman_vm_page_flags(rdev, flags); - int i; - radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, 1 + count * 2)); - radeon_ring_write(ring, pe); - radeon_ring_write(ring, upper_32_bits(pe) & 0xff); - for (i = 0; i < count; ++i) { - uint64_t value = 0; - if (flags & RADEON_VM_PAGE_SYSTEM) { - value = radeon_vm_map_gart(rdev, addr); - value &= 0xFFFFFFFFFFFFF000ULL; - addr += incr; - - } else if (flags & RADEON_VM_PAGE_VALID) { - value = addr; - addr += incr; - } + while (count) { + unsigned ndw = 1 + count * 2; + if (ndw > 0x3FFF) + ndw = 0x3FFF; + + radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, ndw)); + radeon_ring_write(ring, pe); + radeon_ring_write(ring, upper_32_bits(pe) & 0xff); + for (; ndw > 1; ndw -= 2, --count, pe += 8) { + uint64_t value = 0; + if (flags & RADEON_VM_PAGE_SYSTEM) { + value = radeon_vm_map_gart(rdev, addr); + value &= 0xFFFFFFFFFFFFF000ULL; + addr += incr; + + } else if (flags & RADEON_VM_PAGE_VALID) { + value = addr; + addr += incr; + } - value |= r600_flags; - radeon_ring_write(ring, value); - radeon_ring_write(ring, upper_32_bits(value)); + value |= r600_flags; + radeon_ring_write(ring, value); + radeon_ring_write(ring, upper_32_bits(value)); + } } } @@ -1586,4 +1591,8 @@ void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm) /* bits 0-7 are the VM contexts0-7 */ radeon_ring_write(ring, PACKET0(VM_INVALIDATE_REQUEST, 0)); radeon_ring_write(ring, 1 << vm->id); + + /* sync PFP to ME, otherwise we might get invalid PFP reads */ + radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); + radeon_ring_write(ring, 0x0); } diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h index 2423d1b5d385..cbef6815907a 100644 --- a/drivers/gpu/drm/radeon/nid.h +++ b/drivers/gpu/drm/radeon/nid.h @@ -502,6 +502,7 @@ #define PACKET3_MPEG_INDEX 0x3A #define PACKET3_WAIT_REG_MEM 0x3C #define PACKET3_MEM_WRITE 0x3D +#define PACKET3_PFP_SYNC_ME 0x42 #define PACKET3_SURFACE_SYNC 0x43 # define PACKET3_CB0_DEST_BASE_ENA (1 << 6) # define PACKET3_CB1_DEST_BASE_ENA (1 << 7) diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 1aa3f910b993..37f6a907aea4 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -87,7 +87,7 @@ static union acpi_object *radeon_atpx_call(acpi_handle handle, int function, atpx_arg_elements[1].integer.value = 0; } - status = acpi_evaluate_object(handle, "ATPX", &atpx_arg, &buffer); + status = acpi_evaluate_object(handle, NULL, &atpx_arg, &buffer); /* Fail only if calling the method fails and ATPX is supported */ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { @@ -373,11 +373,11 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, } /** - * radeon_atpx_pci_probe_handle - look up the ATRM and ATPX handles + * radeon_atpx_pci_probe_handle - look up the ATPX handle * * @pdev: pci device * - * Look up the ATPX and ATRM handles (all asics). + * Look up the ATPX handles (all asics). * Returns true if the handles are found, false if not. */ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index bd13ca09eb62..e2f5f888c374 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -355,6 +355,8 @@ int radeon_wb_init(struct radeon_device *rdev) */ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base) { + uint64_t limit = (uint64_t)radeon_vram_limit << 20; + mc->vram_start = base; if (mc->mc_vram_size > (0xFFFFFFFF - base + 1)) { dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n"); @@ -368,8 +370,8 @@ void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 mc->mc_vram_size = mc->aper_size; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; - if (radeon_vram_limit && radeon_vram_limit < mc->real_vram_size) - mc->real_vram_size = radeon_vram_limit; + if (limit && limit < mc->real_vram_size) + mc->real_vram_size = limit; dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n", mc->mc_vram_size >> 20, mc->vram_start, mc->vram_end, mc->real_vram_size >> 20); @@ -835,6 +837,19 @@ static unsigned int radeon_vga_set_decode(void *cookie, bool state) } /** + * radeon_check_pot_argument - check that argument is a power of two + * + * @arg: value to check + * + * Validates that a certain argument is a power of two (all asics). + * Returns true if argument is valid. + */ +static bool radeon_check_pot_argument(int arg) +{ + return (arg & (arg - 1)) == 0; +} + +/** * radeon_check_arguments - validate module params * * @rdev: radeon_device pointer @@ -845,52 +860,25 @@ static unsigned int radeon_vga_set_decode(void *cookie, bool state) static void radeon_check_arguments(struct radeon_device *rdev) { /* vramlimit must be a power of two */ - switch (radeon_vram_limit) { - case 0: - case 4: - case 8: - case 16: - case 32: - case 64: - case 128: - case 256: - case 512: - case 1024: - case 2048: - case 4096: - break; - default: + if (!radeon_check_pot_argument(radeon_vram_limit)) { dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n", radeon_vram_limit); radeon_vram_limit = 0; - break; } - radeon_vram_limit = radeon_vram_limit << 20; + /* gtt size must be power of two and greater or equal to 32M */ - switch (radeon_gart_size) { - case 4: - case 8: - case 16: + if (radeon_gart_size < 32) { dev_warn(rdev->dev, "gart size (%d) too small forcing to 512M\n", radeon_gart_size); radeon_gart_size = 512; - break; - case 32: - case 64: - case 128: - case 256: - case 512: - case 1024: - case 2048: - case 4096: - break; - default: + + } else if (!radeon_check_pot_argument(radeon_gart_size)) { dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n", radeon_gart_size); radeon_gart_size = 512; - break; } - rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024; + rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20; + /* AGP mode can only be -1, 1, 2, 4, 8 */ switch (radeon_agpmode) { case -1: diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index a7677dd1ce98..4debd60e5aa6 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -355,14 +355,13 @@ int radeon_gart_init(struct radeon_device *rdev) DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n", rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages); /* Allocate pages table */ - rdev->gart.pages = kzalloc(sizeof(void *) * rdev->gart.num_cpu_pages, - GFP_KERNEL); + rdev->gart.pages = vzalloc(sizeof(void *) * rdev->gart.num_cpu_pages); if (rdev->gart.pages == NULL) { radeon_gart_fini(rdev); return -ENOMEM; } - rdev->gart.pages_addr = kzalloc(sizeof(dma_addr_t) * - rdev->gart.num_cpu_pages, GFP_KERNEL); + rdev->gart.pages_addr = vzalloc(sizeof(dma_addr_t) * + rdev->gart.num_cpu_pages); if (rdev->gart.pages_addr == NULL) { radeon_gart_fini(rdev); return -ENOMEM; @@ -388,8 +387,8 @@ void radeon_gart_fini(struct radeon_device *rdev) radeon_gart_unbind(rdev, 0, rdev->gart.num_cpu_pages); } rdev->gart.ready = false; - kfree(rdev->gart.pages); - kfree(rdev->gart.pages_addr); + vfree(rdev->gart.pages); + vfree(rdev->gart.pages_addr); rdev->gart.pages = NULL; rdev->gart.pages_addr = NULL; @@ -577,7 +576,7 @@ void radeon_vm_manager_fini(struct radeon_device *rdev) * * Global and local mutex must be locked! */ -int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm) +static int radeon_vm_evict(struct radeon_device *rdev, struct radeon_vm *vm) { struct radeon_vm *vm_evict; @@ -1036,8 +1035,7 @@ static void radeon_vm_update_ptes(struct radeon_device *rdev, pte = radeon_sa_bo_gpu_addr(vm->page_tables[pt_idx]); pte += (addr & mask) * 8; - if (((last_pte + 8 * count) != pte) || - ((count + nptes) > 1 << 11)) { + if ((last_pte + 8 * count) != pte) { if (count) { radeon_asic_vm_set_page(rdev, last_pte, @@ -1148,17 +1146,17 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev, if (RADEON_VM_BLOCK_SIZE > 11) /* reserve space for one header for every 2k dwords */ - ndw += (nptes >> 11) * 3; + ndw += (nptes >> 11) * 4; else /* reserve space for one header for every (1 << BLOCK_SIZE) entries */ - ndw += (nptes >> RADEON_VM_BLOCK_SIZE) * 3; + ndw += (nptes >> RADEON_VM_BLOCK_SIZE) * 4; /* reserve space for pte addresses */ ndw += nptes * 2; /* reserve space for one header for every 2k dwords */ - ndw += (npdes >> 11) * 3; + ndw += (npdes >> 11) * 4; /* reserve space for pde addresses */ ndw += npdes * 2; diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index f38fbcc46935..fe5c1f6b7957 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -53,6 +53,7 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size, struct drm_gem_object **obj) { struct radeon_bo *robj; + unsigned long max_size; int r; *obj = NULL; @@ -60,11 +61,26 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size, if (alignment < PAGE_SIZE) { alignment = PAGE_SIZE; } + + /* maximun bo size is the minimun btw visible vram and gtt size */ + max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); + if (size > max_size) { + printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n", + __func__, __LINE__, size >> 20, max_size >> 20); + return -ENOMEM; + } + +retry: r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); if (r) { - if (r != -ERESTARTSYS) + if (r != -ERESTARTSYS) { + if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { + initial_domain |= RADEON_GEM_DOMAIN_GTT; + goto retry; + } DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", size, initial_domain, alignment, r); + } return r; } *obj = &robj->gem_base; diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index a13ad9d707cf..0063df9d166d 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -370,6 +370,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, struct backlight_properties props; struct radeon_backlight_privdata *pdata; uint8_t backlight_level; + char bl_name[16]; if (!radeon_encoder->enc_priv) return; @@ -389,7 +390,9 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, memset(&props, 0, sizeof(props)); props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; - bd = backlight_device_register("radeon_bl", &drm_connector->kdev, + snprintf(bl_name, sizeof(bl_name), + "radeon_bl%d", dev->primary->index); + bd = backlight_device_register(bl_name, &drm_connector->kdev, pdata, &radeon_backlight_ops, &props); if (IS_ERR(bd)) { DRM_ERROR("Backlight registration failed\n"); diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 8b27dd6e3144..b91118ccef86 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -105,7 +105,6 @@ int radeon_bo_create(struct radeon_device *rdev, struct radeon_bo *bo; enum ttm_bo_type type; unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT; - unsigned long max_size = 0; size_t acc_size; int r; @@ -121,18 +120,9 @@ int radeon_bo_create(struct radeon_device *rdev, } *bo_ptr = NULL; - /* maximun bo size is the minimun btw visible vram and gtt size */ - max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); - if ((page_align << PAGE_SHIFT) >= max_size) { - printk(KERN_WARNING "%s:%d alloc size %ldM bigger than %ldMb limit\n", - __func__, __LINE__, page_align >> (20 - PAGE_SHIFT), max_size >> 20); - return -ENOMEM; - } - acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size, sizeof(struct radeon_bo)); -retry: bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL); if (bo == NULL) return -ENOMEM; @@ -154,15 +144,6 @@ retry: acc_size, sg, &radeon_ttm_bo_destroy); up_read(&rdev->pm.mclk_lock); if (unlikely(r != 0)) { - if (r != -ERESTARTSYS) { - if (domain == RADEON_GEM_DOMAIN_VRAM) { - domain |= RADEON_GEM_DOMAIN_GTT; - goto retry; - } - dev_err(rdev->dev, - "object_init failed for (%lu, 0x%08X)\n", - size, domain); - } return r; } *bo_ptr = bo; diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index df8dd7701643..b0db712060fb 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2808,26 +2808,31 @@ void si_vm_set_page(struct radeon_device *rdev, uint64_t pe, { struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index]; uint32_t r600_flags = cayman_vm_page_flags(rdev, flags); - int i; - uint64_t value; - radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 2 + count * 2)); - radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) | - WRITE_DATA_DST_SEL(1))); - radeon_ring_write(ring, pe); - radeon_ring_write(ring, upper_32_bits(pe)); - for (i = 0; i < count; ++i) { - if (flags & RADEON_VM_PAGE_SYSTEM) { - value = radeon_vm_map_gart(rdev, addr); - value &= 0xFFFFFFFFFFFFF000ULL; - } else if (flags & RADEON_VM_PAGE_VALID) - value = addr; - else - value = 0; - addr += incr; - value |= r600_flags; - radeon_ring_write(ring, value); - radeon_ring_write(ring, upper_32_bits(value)); + while (count) { + unsigned ndw = 2 + count * 2; + if (ndw > 0x3FFE) + ndw = 0x3FFE; + + radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, ndw)); + radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) | + WRITE_DATA_DST_SEL(1))); + radeon_ring_write(ring, pe); + radeon_ring_write(ring, upper_32_bits(pe)); + for (; ndw > 2; ndw -= 2, --count, pe += 8) { + uint64_t value; + if (flags & RADEON_VM_PAGE_SYSTEM) { + value = radeon_vm_map_gart(rdev, addr); + value &= 0xFFFFFFFFFFFFF000ULL; + } else if (flags & RADEON_VM_PAGE_VALID) + value = addr; + else + value = 0; + addr += incr; + value |= r600_flags; + radeon_ring_write(ring, value); + radeon_ring_write(ring, upper_32_bits(value)); + } } } @@ -2868,6 +2873,10 @@ void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm) radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); radeon_ring_write(ring, 0); radeon_ring_write(ring, 1 << vm->id); + + /* sync PFP to ME, otherwise we might get invalid PFP reads */ + radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); + radeon_ring_write(ring, 0x0); } /* diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c index c71d493fd0c5..1c350fc4e449 100644 --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c +++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c @@ -201,6 +201,8 @@ static int shmob_drm_load(struct drm_device *dev, unsigned long flags) goto done; } + platform_set_drvdata(pdev, sdev); + done: if (ret) shmob_drm_unload(dev); @@ -299,11 +301,9 @@ static struct drm_driver shmob_drm_driver = { #if CONFIG_PM_SLEEP static int shmob_drm_pm_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct drm_device *ddev = platform_get_drvdata(pdev); - struct shmob_drm_device *sdev = ddev->dev_private; + struct shmob_drm_device *sdev = dev_get_drvdata(dev); - drm_kms_helper_poll_disable(ddev); + drm_kms_helper_poll_disable(sdev->ddev); shmob_drm_crtc_suspend(&sdev->crtc); return 0; @@ -311,9 +311,7 @@ static int shmob_drm_pm_suspend(struct device *dev) static int shmob_drm_pm_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct drm_device *ddev = platform_get_drvdata(pdev); - struct shmob_drm_device *sdev = ddev->dev_private; + struct shmob_drm_device *sdev = dev_get_drvdata(dev); mutex_lock(&sdev->ddev->mode_config.mutex); shmob_drm_crtc_resume(&sdev->crtc); diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 402ab69f9f99..bf6e4b5a73b5 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -580,6 +580,7 @@ retry: if (unlikely(ret != 0)) return ret; +retry_reserve: spin_lock(&glob->lru_lock); if (unlikely(list_empty(&bo->ddestroy))) { @@ -587,14 +588,20 @@ retry: return 0; } - ret = ttm_bo_reserve_locked(bo, interruptible, - no_wait_reserve, false, 0); + ret = ttm_bo_reserve_locked(bo, false, true, false, 0); - if (unlikely(ret != 0)) { + if (unlikely(ret == -EBUSY)) { spin_unlock(&glob->lru_lock); - return ret; + if (likely(!no_wait_reserve)) + ret = ttm_bo_wait_unreserved(bo, interruptible); + if (unlikely(ret != 0)) + return ret; + + goto retry_reserve; } + BUG_ON(ret != 0); + /** * We can re-check for sync object without taking * the bo::lock since setting the sync object requires @@ -811,17 +818,14 @@ retry: no_wait_reserve, no_wait_gpu); kref_put(&bo->list_kref, ttm_bo_release_list); - if (likely(ret == 0 || ret == -ERESTARTSYS)) - return ret; - - goto retry; + return ret; } - ret = ttm_bo_reserve_locked(bo, false, no_wait_reserve, false, 0); + ret = ttm_bo_reserve_locked(bo, false, true, false, 0); if (unlikely(ret == -EBUSY)) { spin_unlock(&glob->lru_lock); - if (likely(!no_wait_gpu)) + if (likely(!no_wait_reserve)) ret = ttm_bo_wait_unreserved(bo, interruptible); kref_put(&bo->list_kref, ttm_bo_release_list); diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 6ae2ac47c9c8..f0f8928b3c8a 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -292,7 +292,6 @@ static int evdev_release(struct inode *inode, struct file *file) kfree(client); evdev_close_device(evdev); - put_device(&evdev->dev); return 0; } @@ -331,7 +330,6 @@ static int evdev_open(struct inode *inode, struct file *file) file->private_data = client; nonseekable_open(inode, file); - get_device(&evdev->dev); return 0; err_free_client: @@ -1001,6 +999,7 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev, goto err_free_evdev; cdev_init(&evdev->cdev, &evdev_fops); + evdev->cdev.kobj.parent = &evdev->dev.kobj; error = cdev_add(&evdev->cdev, evdev->dev.devt, 1); if (error) goto err_unregister_handle; diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index b62b5891f399..f362883c94e3 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -243,7 +243,6 @@ static int joydev_release(struct inode *inode, struct file *file) kfree(client); joydev_close_device(joydev); - put_device(&joydev->dev); return 0; } @@ -270,7 +269,6 @@ static int joydev_open(struct inode *inode, struct file *file) file->private_data = client; nonseekable_open(inode, file); - get_device(&joydev->dev); return 0; err_free_client: @@ -858,6 +856,7 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev, goto err_free_joydev; cdev_init(&joydev->cdev, &joydev_fops); + joydev->cdev.kobj.parent = &joydev->dev.kobj; error = cdev_add(&joydev->cdev, joydev->dev.devt, 1); if (error) goto err_unregister_handle; diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index a1b4c37956b2..8f02e3d0e712 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -523,7 +523,6 @@ static int mousedev_release(struct inode *inode, struct file *file) kfree(client); mousedev_close_device(mousedev); - put_device(&mousedev->dev); return 0; } @@ -558,7 +557,6 @@ static int mousedev_open(struct inode *inode, struct file *file) file->private_data = client; nonseekable_open(inode, file); - get_device(&mousedev->dev); return 0; err_free_client: @@ -892,6 +890,7 @@ static struct mousedev *mousedev_create(struct input_dev *dev, } cdev_init(&mousedev->cdev, &mousedev_fops); + mousedev->cdev.kobj.parent = &mousedev->dev.kobj; error = cdev_add(&mousedev->cdev, mousedev->dev.devt, 1); if (error) goto err_unregister_handle; diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 9edf9806cff9..2c1e12bf2ab4 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -391,7 +391,7 @@ static int wacom_parse_hid(struct usb_interface *intf, features->pktlen = WACOM_PKGLEN_TPC2FG; } - if (features->type == MTSCREEN) + if (features->type == MTSCREEN || WACOM_24HDT) features->pktlen = WACOM_PKGLEN_MTOUCH; if (features->type == BAMBOO_PT) { @@ -402,6 +402,14 @@ static int wacom_parse_hid(struct usb_interface *intf, features->x_max = get_unaligned_le16(&report[i + 8]); i += 15; + } else if (features->type == WACOM_24HDT) { + features->x_max = + get_unaligned_le16(&report[i + 3]); + features->x_phy = + get_unaligned_le16(&report[i + 8]); + features->unit = report[i - 1]; + features->unitExpo = report[i - 3]; + i += 12; } else { features->x_max = get_unaligned_le16(&report[i + 3]); @@ -434,6 +442,12 @@ static int wacom_parse_hid(struct usb_interface *intf, features->y_phy = get_unaligned_le16(&report[i + 6]); i += 7; + } else if (type == WACOM_24HDT) { + features->y_max = + get_unaligned_le16(&report[i + 3]); + features->y_phy = + get_unaligned_le16(&report[i - 2]); + i += 7; } else if (type == BAMBOO_PT) { features->y_phy = get_unaligned_le16(&report[i + 3]); @@ -541,6 +555,9 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat /* MT Tablet PC touch */ return wacom_set_device_mode(intf, 3, 4, 4); } + else if (features->type == WACOM_24HDT) { + return wacom_set_device_mode(intf, 18, 3, 2); + } } else if (features->device_type == BTN_TOOL_PEN) { if (features->type <= BAMBOO_PT && features->type != WIRELESS) { return wacom_set_device_mode(intf, 2, 2, 2); @@ -613,6 +630,30 @@ struct wacom_usbdev_data { static LIST_HEAD(wacom_udev_list); static DEFINE_MUTEX(wacom_udev_list_lock); +static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) +{ + int port1; + struct usb_device *sibling; + + if (vendor == 0 && product == 0) + return dev; + + if (dev->parent == NULL) + return NULL; + + usb_hub_for_each_child(dev->parent, port1, sibling) { + struct usb_device_descriptor *d; + if (sibling == NULL) + continue; + + d = &sibling->descriptor; + if (d->idVendor == vendor && d->idProduct == product) + return sibling; + } + + return NULL; +} + static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) { struct wacom_usbdev_data *data; @@ -1257,13 +1298,19 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { + struct usb_device *other_dev; + /* Append the device type to the name */ strlcat(wacom_wac->name, features->device_type == BTN_TOOL_PEN ? " Pen" : " Finger", sizeof(wacom_wac->name)); - error = wacom_add_shared_data(wacom_wac, dev); + + other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); + if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) + other_dev = dev; + error = wacom_add_shared_data(wacom_wac, other_dev); if (error) goto fail3; } diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index c3468c8dbd89..aa6010131179 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -806,6 +806,70 @@ static int find_slot_from_contactid(struct wacom_wac *wacom, int contactid) return -1; } +static int int_dist(int x1, int y1, int x2, int y2) +{ + int x = x2 - x1; + int y = y2 - y1; + + return int_sqrt(x*x + y*y); +} + +static int wacom_24hdt_irq(struct wacom_wac *wacom) +{ + struct input_dev *input = wacom->input; + char *data = wacom->data; + int i; + int current_num_contacts = data[61]; + int contacts_to_send = 0; + + /* + * First packet resets the counter since only the first + * packet in series will have non-zero current_num_contacts. + */ + if (current_num_contacts) + wacom->num_contacts_left = current_num_contacts; + + /* There are at most 4 contacts per packet */ + contacts_to_send = min(4, wacom->num_contacts_left); + + for (i = 0; i < contacts_to_send; i++) { + int offset = (WACOM_BYTES_PER_24HDT_PACKET * i) + 1; + bool touch = data[offset] & 0x1 && !wacom->shared->stylus_in_proximity; + int id = data[offset + 1]; + int slot = find_slot_from_contactid(wacom, id); + + if (slot < 0) + continue; + input_mt_slot(input, slot); + input_mt_report_slot_state(input, MT_TOOL_FINGER, touch); + + if (touch) { + int t_x = le16_to_cpup((__le16 *)&data[offset + 2]); + int c_x = le16_to_cpup((__le16 *)&data[offset + 4]); + int t_y = le16_to_cpup((__le16 *)&data[offset + 6]); + int c_y = le16_to_cpup((__le16 *)&data[offset + 8]); + int w = le16_to_cpup((__le16 *)&data[offset + 10]); + int h = le16_to_cpup((__le16 *)&data[offset + 12]); + + input_report_abs(input, ABS_MT_POSITION_X, t_x); + input_report_abs(input, ABS_MT_POSITION_Y, t_y); + input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h)); + input_report_abs(input, ABS_MT_WIDTH_MAJOR, min(w, h) + int_dist(t_x, t_y, c_x, c_y)); + input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h)); + input_report_abs(input, ABS_MT_ORIENTATION, w > h); + } + wacom->slots[slot] = touch ? id : -1; + } + + input_mt_report_pointer_emulation(input, true); + + wacom->num_contacts_left -= contacts_to_send; + if (wacom->num_contacts_left <= 0) + wacom->num_contacts_left = 0; + + return 1; +} + static int wacom_mt_touch(struct wacom_wac *wacom) { struct input_dev *input = wacom->input; @@ -1255,6 +1319,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len) sync = wacom_intuos_irq(wacom_wac); break; + case WACOM_24HDT: + sync = wacom_24hdt_irq(wacom_wac); + break; + case INTUOS5S: case INTUOS5: case INTUOS5L: @@ -1340,7 +1408,8 @@ void wacom_setup_device_quirks(struct wacom_features *features) /* these device have multiple inputs */ if (features->type >= WIRELESS || - (features->type >= INTUOS5S && features->type <= INTUOS5L)) + (features->type >= INTUOS5S && features->type <= INTUOS5L) || + (features->oVid && features->oPid)) features->quirks |= WACOM_QUIRK_MULTI_INPUT; /* quirk for bamboo touch with 2 low res touches */ @@ -1575,6 +1644,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev, __set_bit(INPUT_PROP_POINTER, input_dev->propbit); break; + case WACOM_24HDT: + if (features->device_type == BTN_TOOL_FINGER) { + input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0); + input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 0, features->x_max, 0, 0); + input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 0, features->y_max, 0, 0); + input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0); + } + /* fall through */ + case MTSCREEN: if (features->device_type == BTN_TOOL_FINGER) { wacom_wac->slots = kmalloc(features->touch_max * @@ -1869,8 +1947,11 @@ static const struct wacom_features wacom_features_0xF4 = { "Wacom Cintiq 24HD", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xF8 = - { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, - 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; + { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, /* Pen */ + 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 }; +static const struct wacom_features wacom_features_0xF6 = + { "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */ + .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10 }; static const struct wacom_features wacom_features_0x3F = { "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023, 63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; @@ -2113,6 +2194,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x47) }, { USB_DEVICE_WACOM(0xF4) }, { USB_DEVICE_WACOM(0xF8) }, + { USB_DEVICE_WACOM(0xF6) }, { USB_DEVICE_WACOM(0xFA) }, { USB_DEVICE_LENOVO(0x6004) }, { } diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index 96c185cc301e..345f1e76975e 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -29,6 +29,7 @@ /* wacom data size per MT contact */ #define WACOM_BYTES_PER_MT_PACKET 11 +#define WACOM_BYTES_PER_24HDT_PACKET 14 /* device IDs */ #define STYLUS_DEVICE_ID 0x02 @@ -49,6 +50,7 @@ #define WACOM_REPORT_TPCHID 15 #define WACOM_REPORT_TPCST 16 #define WACOM_REPORT_TPC1FGE 18 +#define WACOM_REPORT_24HDT 1 /* device quirks */ #define WACOM_QUIRK_MULTI_INPUT 0x0001 @@ -81,6 +83,7 @@ enum { WACOM_MO, WIRELESS, BAMBOO_PT, + WACOM_24HDT, TABLETPC, /* add new TPC below */ TABLETPCE, TABLETPC2FG, @@ -109,6 +112,8 @@ struct wacom_features { int distance_fuzz; unsigned quirks; unsigned touch_max; + int oVid; + int oPid; }; struct wacom_shared { diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 18b0d99bd4d6..81837b0710a9 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1599,21 +1599,46 @@ static void __init free_on_init_error(void) #endif } +/* SB IOAPIC is always on this device in AMD systems */ +#define IOAPIC_SB_DEVID ((0x00 << 8) | PCI_DEVFN(0x14, 0)) + static bool __init check_ioapic_information(void) { + bool ret, has_sb_ioapic; int idx; - for (idx = 0; idx < nr_ioapics; idx++) { - int id = mpc_ioapic_id(idx); + has_sb_ioapic = false; + ret = false; - if (get_ioapic_devid(id) < 0) { - pr_err(FW_BUG "AMD-Vi: IO-APIC[%d] not in IVRS table\n", id); - pr_err("AMD-Vi: Disabling interrupt remapping due to BIOS Bug\n"); - return false; + for (idx = 0; idx < nr_ioapics; idx++) { + int devid, id = mpc_ioapic_id(idx); + + devid = get_ioapic_devid(id); + if (devid < 0) { + pr_err(FW_BUG "AMD-Vi: IOAPIC[%d] not in IVRS table\n", id); + ret = false; + } else if (devid == IOAPIC_SB_DEVID) { + has_sb_ioapic = true; + ret = true; } } - return true; + if (!has_sb_ioapic) { + /* + * We expect the SB IOAPIC to be listed in the IVRS + * table. The system timer is connected to the SB IOAPIC + * and if we don't have it in the list the system will + * panic at boot time. This situation usually happens + * when the BIOS is buggy and provides us the wrong + * device id for the IOAPIC in the system. + */ + pr_err(FW_BUG "AMD-Vi: No southbridge IOAPIC found in IVRS table\n"); + } + + if (!ret) + pr_err("AMD-Vi: Disabling interrupt remapping due to BIOS Bug(s)\n"); + + return ret; } static void __init free_dma_resources(void) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 0b4d62e0c645..a649f146d17b 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -200,7 +200,7 @@ enum { #define SMMU_ADDR_TO_PFN(addr) ((addr) >> 12) #define SMMU_ADDR_TO_PDN(addr) ((addr) >> 22) -#define SMMU_PDN_TO_ADDR(addr) ((pdn) << 22) +#define SMMU_PDN_TO_ADDR(pdn) ((pdn) << 22) #define _READABLE (1 << SMMU_PTB_DATA_ASID_READABLE_SHIFT) #define _WRITABLE (1 << SMMU_PTB_DATA_ASID_WRITABLE_SHIFT) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 0f1ec9e8ff14..2e39c04fc16b 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1061,8 +1061,10 @@ static int pinctrl_groups_show(struct seq_file *s, void *what) seq_printf(s, "group: %s\n", gname); for (i = 0; i < num_pins; i++) { pname = pin_get_name(pctldev, pins[i]); - if (WARN_ON(!pname)) + if (WARN_ON(!pname)) { + mutex_unlock(&pinctrl_mutex); return -EINVAL; + } seq_printf(s, "pin %d (%s)\n", pins[i], pname); } seq_puts(s, "\n"); diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index 43f474cdc110..baee2cc46a17 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -537,8 +537,6 @@ static int pinconf_groups_show(struct seq_file *s, void *what) seq_puts(s, "Pin config settings per pin group\n"); seq_puts(s, "Format: group (name): configs\n"); - mutex_lock(&pinctrl_mutex); - while (selector < ngroups) { const char *gname = pctlops->get_group_name(pctldev, selector); @@ -549,8 +547,6 @@ static int pinconf_groups_show(struct seq_file *s, void *what) selector++; } - mutex_unlock(&pinctrl_mutex); - return 0; } diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index 01aea1c3b5fa..cf82d9ce4dee 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1056,7 +1056,7 @@ static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) struct nmk_gpio_chip *nmk_chip = container_of(chip, struct nmk_gpio_chip, chip); - return irq_find_mapping(nmk_chip->domain, offset); + return irq_create_mapping(nmk_chip->domain, offset); } #ifdef CONFIG_DEBUG_FS @@ -1281,7 +1281,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev) struct clk *clk; int secondary_irq; void __iomem *base; - int irq_start = -1; + int irq_start = 0; int irq; int ret; @@ -1387,7 +1387,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev) if (!np) irq_start = NOMADIK_GPIO_TO_IRQ(pdata->first_gpio); - nmk_chip->domain = irq_domain_add_simple(NULL, + nmk_chip->domain = irq_domain_add_simple(np, NMK_GPIO_PER_CHIP, irq_start, &nmk_gpio_irq_simple_ops, nmk_chip); if (!nmk_chip->domain) { diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c index 729b686c3ad2..7da0b371fd65 100644 --- a/drivers/pinctrl/pinctrl-tegra.c +++ b/drivers/pinctrl/pinctrl-tegra.c @@ -464,7 +464,7 @@ static int tegra_pinconf_reg(struct tegra_pmx *pmx, *bank = g->drv_bank; *reg = g->drv_reg; *bit = g->lpmd_bit; - *width = 1; + *width = 2; break; case TEGRA_PINCONF_PARAM_DRIVE_DOWN_STRENGTH: *bank = g->drv_bank; diff --git a/drivers/pinctrl/pinctrl-tegra30.c b/drivers/pinctrl/pinctrl-tegra30.c index 0386fdf0da16..7894f14c7059 100644 --- a/drivers/pinctrl/pinctrl-tegra30.c +++ b/drivers/pinctrl/pinctrl-tegra30.c @@ -3345,10 +3345,10 @@ static const struct tegra_function tegra30_functions[] = { FUNCTION(vi_alt3), }; -#define MUXCTL_REG_A 0x3000 -#define PINGROUP_REG_A 0x868 +#define DRV_PINGROUP_REG_A 0x868 /* bank 0 */ +#define PINGROUP_REG_A 0x3000 /* bank 1 */ -#define PINGROUP_REG_Y(r) ((r) - MUXCTL_REG_A) +#define PINGROUP_REG_Y(r) ((r) - PINGROUP_REG_A) #define PINGROUP_REG_N(r) -1 #define PINGROUP(pg_name, f0, f1, f2, f3, f_safe, r, od, ior) \ @@ -3364,25 +3364,25 @@ static const struct tegra_function tegra30_functions[] = { }, \ .func_safe = TEGRA_MUX_ ## f_safe, \ .mux_reg = PINGROUP_REG_Y(r), \ - .mux_bank = 0, \ + .mux_bank = 1, \ .mux_bit = 0, \ .pupd_reg = PINGROUP_REG_Y(r), \ - .pupd_bank = 0, \ + .pupd_bank = 1, \ .pupd_bit = 2, \ .tri_reg = PINGROUP_REG_Y(r), \ - .tri_bank = 0, \ + .tri_bank = 1, \ .tri_bit = 4, \ .einput_reg = PINGROUP_REG_Y(r), \ - .einput_bank = 0, \ + .einput_bank = 1, \ .einput_bit = 5, \ .odrain_reg = PINGROUP_REG_##od(r), \ - .odrain_bank = 0, \ + .odrain_bank = 1, \ .odrain_bit = 6, \ .lock_reg = PINGROUP_REG_Y(r), \ - .lock_bank = 0, \ + .lock_bank = 1, \ .lock_bit = 7, \ .ioreset_reg = PINGROUP_REG_##ior(r), \ - .ioreset_bank = 0, \ + .ioreset_bank = 1, \ .ioreset_bit = 8, \ .drv_reg = -1, \ } @@ -3401,8 +3401,8 @@ static const struct tegra_function tegra30_functions[] = { .odrain_reg = -1, \ .lock_reg = -1, \ .ioreset_reg = -1, \ - .drv_reg = ((r) - PINGROUP_REG_A), \ - .drv_bank = 1, \ + .drv_reg = ((r) - DRV_PINGROUP_REG_A), \ + .drv_bank = 0, \ .hsm_bit = hsm_b, \ .schmitt_bit = schmitt_b, \ .lpmd_bit = lpmd_b, \ diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c index 891cd6c61d0a..4eed51044c5d 100644 --- a/drivers/rtc/rtc-imxdi.c +++ b/drivers/rtc/rtc-imxdi.c @@ -392,6 +392,8 @@ static int dryice_rtc_probe(struct platform_device *pdev) if (imxdi->ioaddr == NULL) return -ENOMEM; + spin_lock_init(&imxdi->irq_lock); + imxdi->irq = platform_get_irq(pdev, 0); if (imxdi->irq < 0) return imxdi->irq; diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index b4d572f65f07..fd00afd8b850 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -377,7 +377,11 @@ static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow) /* Will be done on the slow path. */ return -EAGAIN; } - if (stsch_err(schid, &schib) || !css_sch_is_valid(&schib)) { + if (stsch_err(schid, &schib)) { + /* Subchannel is not provided. */ + return -ENXIO; + } + if (!css_sch_is_valid(&schib)) { /* Unusable - ignore. */ return 0; } @@ -536,6 +540,7 @@ static int slow_eval_unknown_fn(struct subchannel_id schid, void *data) case -ENOMEM: case -EIO: /* These should abort looping */ + idset_sch_del_subseq(slow_subchannel_set, schid); break; default: rc = 0; diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c index e6d5f8c49524..199bc6791177 100644 --- a/drivers/s390/cio/idset.c +++ b/drivers/s390/cio/idset.c @@ -1,9 +1,10 @@ /* - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ #include <linux/vmalloc.h> +#include <linux/bitmap.h> #include <linux/bitops.h> #include "idset.h" #include "css.h" @@ -89,6 +90,14 @@ void idset_sch_del(struct idset *set, struct subchannel_id schid) idset_del(set, schid.ssid, schid.sch_no); } +/* Clear ids starting from @schid up to end of subchannel set. */ +void idset_sch_del_subseq(struct idset *set, struct subchannel_id schid) +{ + int pos = schid.ssid * set->num_id + schid.sch_no; + + bitmap_clear(set->bitmap, pos, set->num_id - schid.sch_no); +} + int idset_sch_contains(struct idset *set, struct subchannel_id schid) { return idset_contains(set, schid.ssid, schid.sch_no); @@ -111,20 +120,13 @@ int idset_sch_get_first(struct idset *set, struct subchannel_id *schid) int idset_is_empty(struct idset *set) { - int bitnum; - - bitnum = find_first_bit(set->bitmap, set->num_ssid * set->num_id); - if (bitnum >= set->num_ssid * set->num_id) - return 1; - return 0; + return bitmap_empty(set->bitmap, set->num_ssid * set->num_id); } void idset_add_set(struct idset *to, struct idset *from) { - unsigned long i, len; + int len = min(__BITOPS_WORDS(to->num_ssid * to->num_id), + __BITOPS_WORDS(from->num_ssid * from->num_id)); - len = min(__BITOPS_WORDS(to->num_ssid * to->num_id), - __BITOPS_WORDS(from->num_ssid * from->num_id)); - for (i = 0; i < len ; i++) - to->bitmap[i] |= from->bitmap[i]; + bitmap_or(to->bitmap, to->bitmap, from->bitmap, len); } diff --git a/drivers/s390/cio/idset.h b/drivers/s390/cio/idset.h index 3d943f03591e..06d3bc01bb09 100644 --- a/drivers/s390/cio/idset.h +++ b/drivers/s390/cio/idset.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ @@ -17,6 +17,7 @@ void idset_fill(struct idset *set); struct idset *idset_sch_new(void); void idset_sch_add(struct idset *set, struct subchannel_id id); void idset_sch_del(struct idset *set, struct subchannel_id id); +void idset_sch_del_subseq(struct idset *set, struct subchannel_id schid); int idset_sch_contains(struct idset *set, struct subchannel_id id); int idset_sch_get_first(struct idset *set, struct subchannel_id *id); int idset_is_empty(struct idset *set); diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 919464102d33..a1db91a99b89 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -2186,8 +2186,6 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id) printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n", adev->res.start, pl022->virtbase); - pm_runtime_resume(dev); - pl022->clk = devm_clk_get(&adev->dev, NULL); if (IS_ERR(pl022->clk)) { status = PTR_ERR(pl022->clk); @@ -2292,7 +2290,6 @@ pl022_remove(struct amba_device *adev) clk_disable(pl022->clk); clk_unprepare(pl022->clk); - pm_runtime_disable(&adev->dev); amba_release_regions(adev); tasklet_disable(&pl022->pump_transfers); spi_unregister_master(pl022->master); diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 4894bde4bbff..30faf6d4ab91 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -147,8 +147,6 @@ struct rspi_data { unsigned char spsr; /* for dmaengine */ - struct sh_dmae_slave dma_tx; - struct sh_dmae_slave dma_rx; struct dma_chan *chan_tx; struct dma_chan *chan_rx; int irq; @@ -663,20 +661,16 @@ static irqreturn_t rspi_irq(int irq, void *_sr) return ret; } -static bool rspi_filter(struct dma_chan *chan, void *filter_param) -{ - chan->private = filter_param; - return true; -} - -static void __devinit rspi_request_dma(struct rspi_data *rspi, - struct platform_device *pdev) +static int __devinit rspi_request_dma(struct rspi_data *rspi, + struct platform_device *pdev) { struct rspi_plat_data *rspi_pd = pdev->dev.platform_data; dma_cap_mask_t mask; + struct dma_slave_config cfg; + int ret; if (!rspi_pd) - return; + return 0; /* The driver assumes no error. */ rspi->dma_width_16bit = rspi_pd->dma_width_16bit; @@ -684,21 +678,35 @@ static void __devinit rspi_request_dma(struct rspi_data *rspi, if (rspi_pd->dma_rx_id && rspi_pd->dma_tx_id) { dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - rspi->dma_rx.slave_id = rspi_pd->dma_rx_id; - rspi->chan_rx = dma_request_channel(mask, rspi_filter, - &rspi->dma_rx); - if (rspi->chan_rx) - dev_info(&pdev->dev, "Use DMA when rx.\n"); + rspi->chan_rx = dma_request_channel(mask, shdma_chan_filter, + (void *)rspi_pd->dma_rx_id); + if (rspi->chan_rx) { + cfg.slave_id = rspi_pd->dma_rx_id; + cfg.direction = DMA_DEV_TO_MEM; + ret = dmaengine_slave_config(rspi->chan_rx, &cfg); + if (!ret) + dev_info(&pdev->dev, "Use DMA when rx.\n"); + else + return ret; + } } if (rspi_pd->dma_tx_id) { dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - rspi->dma_tx.slave_id = rspi_pd->dma_tx_id; - rspi->chan_tx = dma_request_channel(mask, rspi_filter, - &rspi->dma_tx); - if (rspi->chan_tx) - dev_info(&pdev->dev, "Use DMA when tx\n"); + rspi->chan_tx = dma_request_channel(mask, shdma_chan_filter, + (void *)rspi_pd->dma_tx_id); + if (rspi->chan_tx) { + cfg.slave_id = rspi_pd->dma_tx_id; + cfg.direction = DMA_MEM_TO_DEV; + ret = dmaengine_slave_config(rspi->chan_tx, &cfg); + if (!ret) + dev_info(&pdev->dev, "Use DMA when tx\n"); + else + return ret; + } } + + return 0; } static void __devexit rspi_release_dma(struct rspi_data *rspi) @@ -788,7 +796,11 @@ static int __devinit rspi_probe(struct platform_device *pdev) } rspi->irq = irq; - rspi_request_dma(rspi, pdev); + ret = rspi_request_dma(rspi, pdev); + if (ret < 0) { + dev_err(&pdev->dev, "rspi_request_dma failed.\n"); + goto error4; + } ret = spi_register_master(master); if (ret < 0) { diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index c101697a4ba7..765a945f8ea1 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -60,7 +60,8 @@ config LCD_LTV350QV The LTV350QV panel is present on all ATSTK1000 boards. config LCD_ILI9320 - tristate + tristate "ILI Technology ILI9320 controller support" + depends on SPI help If you have a panel based on the ILI9320 controller chip then say y to include a power driver for it. diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index d4dffcd52873..126d8ce591ce 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -3,6 +3,7 @@ menu "Xen driver support" config XEN_BALLOON bool "Xen memory balloon driver" + depends on !ARM default y help The balloon driver allows the Xen domain to request more memory from @@ -145,6 +146,7 @@ config SWIOTLB_XEN config XEN_TMEM bool + depends on !ARM default y if (CLEANCACHE || FRONTSWAP) help Shim to interface in-kernel Transcendent Memory hooks diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 31ab82fda38a..d6886d90ccfd 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -55,7 +55,6 @@ #include <asm/pgalloc.h> #include <asm/pgtable.h> #include <asm/tlb.h> -#include <asm/e820.h> #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> @@ -88,7 +87,7 @@ struct balloon_stats balloon_stats; EXPORT_SYMBOL_GPL(balloon_stats); /* We increase/decrease in batches which fit in a page */ -static unsigned long frame_list[PAGE_SIZE / sizeof(unsigned long)]; +static xen_pfn_t frame_list[PAGE_SIZE / sizeof(unsigned long)]; #ifdef CONFIG_HIGHMEM #define inc_totalhigh_pages() (totalhigh_pages++) diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c index 42569c77ccc8..f3ccc80a455f 100644 --- a/drivers/xen/dbgp.c +++ b/drivers/xen/dbgp.c @@ -8,7 +8,9 @@ static int xen_dbgp_op(struct usb_hcd *hcd, int op) { +#ifdef CONFIG_PCI const struct device *ctrlr = hcd_to_bus(hcd)->controller; +#endif struct physdev_dbgp_op dbgp; if (!xen_initial_domain()) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 59e10a1286d5..912ac81b6dbf 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -115,7 +115,9 @@ struct irq_info { #define PIRQ_SHAREABLE (1 << 1) static int *evtchn_to_irq; +#ifdef CONFIG_X86 static unsigned long *pirq_eoi_map; +#endif static bool (*pirq_needs_eoi)(unsigned irq); static DEFINE_PER_CPU(unsigned long [NR_EVENT_CHANNELS/BITS_PER_LONG], @@ -277,10 +279,12 @@ static unsigned int cpu_from_evtchn(unsigned int evtchn) return ret; } +#ifdef CONFIG_X86 static bool pirq_check_eoi_map(unsigned irq) { return test_bit(pirq_from_irq(irq), pirq_eoi_map); } +#endif static bool pirq_needs_eoi_flag(unsigned irq) { diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index b2b0a375b348..b91f14e83164 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -84,7 +84,7 @@ struct gnttab_ops { * nr_gframes is the number of frames to map grant table. Returning * GNTST_okay means success and negative value means failure. */ - int (*map_frames)(unsigned long *frames, unsigned int nr_gframes); + int (*map_frames)(xen_pfn_t *frames, unsigned int nr_gframes); /* * Release a list of frames which are mapped in map_frames for grant * entry status. @@ -960,7 +960,7 @@ static unsigned nr_status_frames(unsigned nr_grant_frames) return (nr_grant_frames * GREFS_PER_GRANT_FRAME + SPP - 1) / SPP; } -static int gnttab_map_frames_v1(unsigned long *frames, unsigned int nr_gframes) +static int gnttab_map_frames_v1(xen_pfn_t *frames, unsigned int nr_gframes) { int rc; @@ -977,7 +977,7 @@ static void gnttab_unmap_frames_v1(void) arch_gnttab_unmap(gnttab_shared.addr, nr_grant_frames); } -static int gnttab_map_frames_v2(unsigned long *frames, unsigned int nr_gframes) +static int gnttab_map_frames_v2(xen_pfn_t *frames, unsigned int nr_gframes) { uint64_t *sframes; unsigned int nr_sframes; @@ -1029,7 +1029,7 @@ static void gnttab_unmap_frames_v2(void) static int gnttab_map(unsigned int start_idx, unsigned int end_idx) { struct gnttab_setup_table setup; - unsigned long *frames; + xen_pfn_t *frames; unsigned int nr_gframes = end_idx + 1; int rc; diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c index 5e5ad7e28858..96453f8a85c5 100644 --- a/drivers/xen/sys-hypervisor.c +++ b/drivers/xen/sys-hypervisor.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/kobject.h> +#include <linux/err.h> #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> @@ -284,7 +285,8 @@ static ssize_t virtual_start_show(struct hyp_sysfs_attr *attr, char *buffer) ret = HYPERVISOR_xen_version(XENVER_platform_parameters, parms); if (!ret) - ret = sprintf(buffer, "%lx\n", parms->virt_start); + ret = sprintf(buffer, "%"PRI_xen_ulong"\n", + parms->virt_start); kfree(parms); } diff --git a/drivers/xen/xen-pciback/vpci.c b/drivers/xen/xen-pciback/vpci.c index 46d140baebd8..0f478ac483cd 100644 --- a/drivers/xen/xen-pciback/vpci.c +++ b/drivers/xen/xen-pciback/vpci.c @@ -89,9 +89,15 @@ static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev, mutex_lock(&vpci_dev->lock); - /* Keep multi-function devices together on the virtual PCI bus */ - for (slot = 0; slot < PCI_SLOT_MAX; slot++) { - if (!list_empty(&vpci_dev->dev_list[slot])) { + /* + * Keep multi-function devices together on the virtual PCI bus, except + * virtual functions. + */ + if (!dev->is_virtfn) { + for (slot = 0; slot < PCI_SLOT_MAX; slot++) { + if (list_empty(&vpci_dev->dev_list[slot])) + continue; + t = list_entry(list_first(&vpci_dev->dev_list[slot]), struct pci_dev_entry, list); @@ -116,7 +122,7 @@ static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev, pci_name(dev), slot); list_add_tail(&dev_entry->list, &vpci_dev->dev_list[slot]); - func = PCI_FUNC(dev->devfn); + func = dev->is_virtfn ? 0 : PCI_FUNC(dev->devfn); goto unlock; } } diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c index f5dda83ad7a5..acedeabe589c 100644 --- a/drivers/xen/xenbus/xenbus_xs.c +++ b/drivers/xen/xenbus/xenbus_xs.c @@ -627,6 +627,7 @@ static struct xenbus_watch *find_watch(const char *token) */ static bool xen_strict_xenbus_quirk(void) { +#ifdef CONFIG_X86 uint32_t eax, ebx, ecx, edx, base; base = xen_cpuid_base(); @@ -634,6 +635,7 @@ static bool xen_strict_xenbus_quirk(void) if ((eax >> 16) < 4) return true; +#endif return false; } diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index f3187938e081..208d8aa5b07e 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -283,9 +283,7 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info, goto out; } - rcu_read_lock(); - root_level = btrfs_header_level(root->node); - rcu_read_unlock(); + root_level = btrfs_old_root_level(root, time_seq); if (root_level + 1 == level) goto out; @@ -1177,16 +1175,15 @@ int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid, return ret; } -static char *ref_to_path(struct btrfs_root *fs_root, - struct btrfs_path *path, - u32 name_len, unsigned long name_off, - struct extent_buffer *eb_in, u64 parent, - char *dest, u32 size) +char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, + u32 name_len, unsigned long name_off, + struct extent_buffer *eb_in, u64 parent, + char *dest, u32 size) { int slot; u64 next_inum; int ret; - s64 bytes_left = size - 1; + s64 bytes_left = ((s64)size) - 1; struct extent_buffer *eb = eb_in; struct btrfs_key found_key; int leave_spinning = path->leave_spinning; @@ -1266,10 +1263,10 @@ char *btrfs_iref_to_path(struct btrfs_root *fs_root, struct extent_buffer *eb_in, u64 parent, char *dest, u32 size) { - return ref_to_path(fs_root, path, - btrfs_inode_ref_name_len(eb_in, iref), - (unsigned long)(iref + 1), - eb_in, parent, dest, size); + return btrfs_ref_to_path(fs_root, path, + btrfs_inode_ref_name_len(eb_in, iref), + (unsigned long)(iref + 1), + eb_in, parent, dest, size); } /* @@ -1715,9 +1712,8 @@ static int inode_to_path(u64 inum, u32 name_len, unsigned long name_off, ipath->fspath->bytes_left - s_ptr : 0; fspath_min = (char *)ipath->fspath->val + (i + 1) * s_ptr; - fspath = ref_to_path(ipath->fs_root, ipath->btrfs_path, name_len, - name_off, eb, inum, fspath_min, - bytes_left); + fspath = btrfs_ref_to_path(ipath->fs_root, ipath->btrfs_path, name_len, + name_off, eb, inum, fspath_min, bytes_left); if (IS_ERR(fspath)) return PTR_ERR(fspath); diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h index e75533043a5f..d61feca79455 100644 --- a/fs/btrfs/backref.h +++ b/fs/btrfs/backref.h @@ -62,6 +62,10 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, char *btrfs_iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, struct btrfs_inode_ref *iref, struct extent_buffer *eb, u64 parent, char *dest, u32 size); +char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, + u32 name_len, unsigned long name_off, + struct extent_buffer *eb_in, u64 parent, + char *dest, u32 size); struct btrfs_data_container *init_data_container(u32 total_bytes); struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root, diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index b33436211000..cdfb4c49a806 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -596,6 +596,11 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info, if (tree_mod_dont_log(fs_info, eb)) return 0; + /* + * When we override something during the move, we log these removals. + * This can only happen when we move towards the beginning of the + * buffer, i.e. dst_slot < src_slot. + */ for (i = 0; i + dst_slot < src_slot && i < nr_items; i++) { ret = tree_mod_log_insert_key_locked(fs_info, eb, i + dst_slot, MOD_LOG_KEY_REMOVE_WHILE_MOVING); @@ -647,8 +652,6 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info, if (tree_mod_dont_log(fs_info, NULL)) return 0; - __tree_mod_log_free_eb(fs_info, old_root); - ret = tree_mod_alloc(fs_info, flags, &tm); if (ret < 0) goto out; @@ -926,12 +929,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans, ret = btrfs_dec_ref(trans, root, buf, 1, 1); BUG_ON(ret); /* -ENOMEM */ } - /* - * don't log freeing in case we're freeing the root node, this - * is done by tree_mod_log_set_root_pointer later - */ - if (buf != root->node && btrfs_header_level(buf) != 0) - tree_mod_log_free_eb(root->fs_info, buf); + tree_mod_log_free_eb(root->fs_info, buf); clean_tree_block(trans, root, buf); *last_ref = 1; } @@ -1225,6 +1223,8 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct extent_buffer *eb, free_extent_buffer(eb); __tree_mod_log_rewind(eb_rewin, time_seq, tm); + WARN_ON(btrfs_header_nritems(eb_rewin) > + BTRFS_NODEPTRS_PER_BLOCK(fs_info->fs_root)); return eb_rewin; } @@ -1241,9 +1241,11 @@ get_old_root(struct btrfs_root *root, u64 time_seq) { struct tree_mod_elem *tm; struct extent_buffer *eb; + struct extent_buffer *old; struct tree_mod_root *old_root = NULL; u64 old_generation = 0; u64 logical; + u32 blocksize; eb = btrfs_read_lock_root_node(root); tm = __tree_mod_log_oldest_root(root->fs_info, root, time_seq); @@ -1259,14 +1261,32 @@ get_old_root(struct btrfs_root *root, u64 time_seq) } tm = tree_mod_log_search(root->fs_info, logical, time_seq); - if (old_root) + if (old_root && tm && tm->op != MOD_LOG_KEY_REMOVE_WHILE_FREEING) { + btrfs_tree_read_unlock(root->node); + free_extent_buffer(root->node); + blocksize = btrfs_level_size(root, old_root->level); + old = read_tree_block(root, logical, blocksize, 0); + if (!old) { + pr_warn("btrfs: failed to read tree block %llu from get_old_root\n", + logical); + WARN_ON(1); + } else { + eb = btrfs_clone_extent_buffer(old); + free_extent_buffer(old); + } + } else if (old_root) { + btrfs_tree_read_unlock(root->node); + free_extent_buffer(root->node); eb = alloc_dummy_extent_buffer(logical, root->nodesize); - else + } else { eb = btrfs_clone_extent_buffer(root->node); - btrfs_tree_read_unlock(root->node); - free_extent_buffer(root->node); + btrfs_tree_read_unlock(root->node); + free_extent_buffer(root->node); + } + if (!eb) return NULL; + extent_buffer_get(eb); btrfs_tree_read_lock(eb); if (old_root) { btrfs_set_header_bytenr(eb, eb->start); @@ -1279,11 +1299,28 @@ get_old_root(struct btrfs_root *root, u64 time_seq) __tree_mod_log_rewind(eb, time_seq, tm); else WARN_ON(btrfs_header_level(eb) != 0); - extent_buffer_get(eb); + WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(root)); return eb; } +int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq) +{ + struct tree_mod_elem *tm; + int level; + + tm = __tree_mod_log_oldest_root(root->fs_info, root, time_seq); + if (tm && tm->op == MOD_LOG_ROOT_REPLACE) { + level = tm->old_root.level; + } else { + rcu_read_lock(); + level = btrfs_header_level(root->node); + rcu_read_unlock(); + } + + return level; +} + static inline int should_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf) @@ -1725,6 +1762,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, goto enospc; } + tree_mod_log_free_eb(root->fs_info, root->node); tree_mod_log_set_root_pointer(root, child); rcu_assign_pointer(root->node, child); @@ -2970,8 +3008,10 @@ static int push_node_left(struct btrfs_trans_handle *trans, push_items * sizeof(struct btrfs_key_ptr)); if (push_items < src_nritems) { - tree_mod_log_eb_move(root->fs_info, src, 0, push_items, - src_nritems - push_items); + /* + * don't call tree_mod_log_eb_move here, key removal was already + * fully logged by tree_mod_log_eb_copy above. + */ memmove_extent_buffer(src, btrfs_node_key_ptr_offset(0), btrfs_node_key_ptr_offset(push_items), (src_nritems - push_items) * diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 926c9ffc66d9..c72ead869507 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3120,6 +3120,7 @@ static inline u64 btrfs_inc_tree_mod_seq(struct btrfs_fs_info *fs_info) { return atomic_inc_return(&fs_info->tree_mod_seq); } +int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq); /* root-item.c */ int btrfs_find_root_ref(struct btrfs_root *tree_root, @@ -3338,6 +3339,8 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page, int btrfs_update_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode); +int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct inode *inode); int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode); int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode); int btrfs_orphan_cleanup(struct btrfs_root *root); diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8036d3a84853..472873a94d96 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4110,8 +4110,8 @@ struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len) return eb; err: - for (i--; i >= 0; i--) - __free_page(eb->pages[i]); + for (; i > 0; i--) + __free_page(eb->pages[i - 1]); __free_extent_buffer(eb); return NULL; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 85a1e5053fe6..95542a1b3dfc 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -94,8 +94,6 @@ static noinline int cow_file_range(struct inode *inode, struct page *locked_page, u64 start, u64 end, int *page_started, unsigned long *nr_written, int unlock); -static noinline int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct inode *inode); static int btrfs_init_inode_security(struct btrfs_trans_handle *trans, struct inode *inode, struct inode *dir, @@ -2746,8 +2744,9 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans, return btrfs_update_inode_item(trans, root, inode); } -static noinline int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct inode *inode) +noinline int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + struct inode *inode) { int ret; diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 61168805f175..8fcf9a59c28d 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -343,7 +343,8 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) return -EOPNOTSUPP; if (copy_from_user(&range, arg, sizeof(range))) return -EFAULT; - if (range.start > total_bytes) + if (range.start > total_bytes || + range.len < fs_info->sb->s_blocksize) return -EINVAL; range.len = min(range.len, total_bytes - range.start); @@ -570,7 +571,8 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry, ret = btrfs_commit_transaction(trans, root->fs_info->extent_root); } - BUG_ON(ret); + if (ret) + goto fail; ret = pending_snapshot->error; if (ret) diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 5039686df6ae..fe9d02c45f8e 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -790,8 +790,10 @@ int btrfs_quota_enable(struct btrfs_trans_handle *trans, } path = btrfs_alloc_path(); - if (!path) - return -ENOMEM; + if (!path) { + ret = -ENOMEM; + goto out_free_root; + } key.objectid = 0; key.type = BTRFS_QGROUP_STATUS_KEY; @@ -800,7 +802,7 @@ int btrfs_quota_enable(struct btrfs_trans_handle *trans, ret = btrfs_insert_empty_item(trans, quota_root, path, &key, sizeof(*ptr)); if (ret) - goto out; + goto out_free_path; leaf = path->nodes[0]; ptr = btrfs_item_ptr(leaf, path->slots[0], @@ -818,8 +820,15 @@ int btrfs_quota_enable(struct btrfs_trans_handle *trans, fs_info->quota_root = quota_root; fs_info->pending_quota_state = 1; spin_unlock(&fs_info->qgroup_lock); -out: +out_free_path: btrfs_free_path(path); +out_free_root: + if (ret) { + free_extent_buffer(quota_root->node); + free_extent_buffer(quota_root->commit_root); + kfree(quota_root); + } +out: return ret; } diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index c7beb543a4a8..e78b297b0b00 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -745,31 +745,36 @@ typedef int (*iterate_inode_ref_t)(int num, u64 dir, int index, void *ctx); /* - * Helper function to iterate the entries in ONE btrfs_inode_ref. + * Helper function to iterate the entries in ONE btrfs_inode_ref or + * btrfs_inode_extref. * The iterate callback may return a non zero value to stop iteration. This can * be a negative value for error codes or 1 to simply stop it. * - * path must point to the INODE_REF when called. + * path must point to the INODE_REF or INODE_EXTREF when called. */ static int iterate_inode_ref(struct send_ctx *sctx, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *found_key, int resolve, iterate_inode_ref_t iterate, void *ctx) { - struct extent_buffer *eb; + struct extent_buffer *eb = path->nodes[0]; struct btrfs_item *item; struct btrfs_inode_ref *iref; + struct btrfs_inode_extref *extref; struct btrfs_path *tmp_path; struct fs_path *p; - u32 cur; - u32 len; + u32 cur = 0; u32 total; - int slot; + int slot = path->slots[0]; u32 name_len; char *start; int ret = 0; - int num; + int num = 0; int index; + u64 dir; + unsigned long name_off; + unsigned long elem_size; + unsigned long ptr; p = fs_path_alloc_reversed(sctx); if (!p) @@ -781,24 +786,40 @@ static int iterate_inode_ref(struct send_ctx *sctx, return -ENOMEM; } - eb = path->nodes[0]; - slot = path->slots[0]; - item = btrfs_item_nr(eb, slot); - iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref); - cur = 0; - len = 0; - total = btrfs_item_size(eb, item); - num = 0; + if (found_key->type == BTRFS_INODE_REF_KEY) { + ptr = (unsigned long)btrfs_item_ptr(eb, slot, + struct btrfs_inode_ref); + item = btrfs_item_nr(eb, slot); + total = btrfs_item_size(eb, item); + elem_size = sizeof(*iref); + } else { + ptr = btrfs_item_ptr_offset(eb, slot); + total = btrfs_item_size_nr(eb, slot); + elem_size = sizeof(*extref); + } + while (cur < total) { fs_path_reset(p); - name_len = btrfs_inode_ref_name_len(eb, iref); - index = btrfs_inode_ref_index(eb, iref); + if (found_key->type == BTRFS_INODE_REF_KEY) { + iref = (struct btrfs_inode_ref *)(ptr + cur); + name_len = btrfs_inode_ref_name_len(eb, iref); + name_off = (unsigned long)(iref + 1); + index = btrfs_inode_ref_index(eb, iref); + dir = found_key->offset; + } else { + extref = (struct btrfs_inode_extref *)(ptr + cur); + name_len = btrfs_inode_extref_name_len(eb, extref); + name_off = (unsigned long)&extref->name; + index = btrfs_inode_extref_index(eb, extref); + dir = btrfs_inode_extref_parent(eb, extref); + } + if (resolve) { - start = btrfs_iref_to_path(root, tmp_path, iref, eb, - found_key->offset, p->buf, - p->buf_len); + start = btrfs_ref_to_path(root, tmp_path, name_len, + name_off, eb, dir, + p->buf, p->buf_len); if (IS_ERR(start)) { ret = PTR_ERR(start); goto out; @@ -809,9 +830,10 @@ static int iterate_inode_ref(struct send_ctx *sctx, p->buf_len + p->buf - start); if (ret < 0) goto out; - start = btrfs_iref_to_path(root, tmp_path, iref, - eb, found_key->offset, p->buf, - p->buf_len); + start = btrfs_ref_to_path(root, tmp_path, + name_len, name_off, + eb, dir, + p->buf, p->buf_len); if (IS_ERR(start)) { ret = PTR_ERR(start); goto out; @@ -820,21 +842,16 @@ static int iterate_inode_ref(struct send_ctx *sctx, } p->start = start; } else { - ret = fs_path_add_from_extent_buffer(p, eb, - (unsigned long)(iref + 1), name_len); + ret = fs_path_add_from_extent_buffer(p, eb, name_off, + name_len); if (ret < 0) goto out; } - - len = sizeof(*iref) + name_len; - iref = (struct btrfs_inode_ref *)((char *)iref + len); - cur += len; - - ret = iterate(num, found_key->offset, index, p, ctx); + cur += elem_size + name_len; + ret = iterate(num, dir, index, p, ctx); if (ret) goto out; - num++; } @@ -998,7 +1015,8 @@ static int get_inode_path(struct send_ctx *sctx, struct btrfs_root *root, } btrfs_item_key_to_cpu(p->nodes[0], &found_key, p->slots[0]); if (found_key.objectid != ino || - found_key.type != BTRFS_INODE_REF_KEY) { + (found_key.type != BTRFS_INODE_REF_KEY && + found_key.type != BTRFS_INODE_EXTREF_KEY)) { ret = -ENOENT; goto out; } @@ -1551,8 +1569,8 @@ static int get_first_ref(struct send_ctx *sctx, struct btrfs_key key; struct btrfs_key found_key; struct btrfs_path *path; - struct btrfs_inode_ref *iref; int len; + u64 parent_dir; path = alloc_path_for_send(); if (!path) @@ -1568,27 +1586,41 @@ static int get_first_ref(struct send_ctx *sctx, if (!ret) btrfs_item_key_to_cpu(path->nodes[0], &found_key, path->slots[0]); - if (ret || found_key.objectid != key.objectid || - found_key.type != key.type) { + if (ret || found_key.objectid != ino || + (found_key.type != BTRFS_INODE_REF_KEY && + found_key.type != BTRFS_INODE_EXTREF_KEY)) { ret = -ENOENT; goto out; } - iref = btrfs_item_ptr(path->nodes[0], path->slots[0], - struct btrfs_inode_ref); - len = btrfs_inode_ref_name_len(path->nodes[0], iref); - ret = fs_path_add_from_extent_buffer(name, path->nodes[0], - (unsigned long)(iref + 1), len); + if (key.type == BTRFS_INODE_REF_KEY) { + struct btrfs_inode_ref *iref; + iref = btrfs_item_ptr(path->nodes[0], path->slots[0], + struct btrfs_inode_ref); + len = btrfs_inode_ref_name_len(path->nodes[0], iref); + ret = fs_path_add_from_extent_buffer(name, path->nodes[0], + (unsigned long)(iref + 1), + len); + parent_dir = found_key.offset; + } else { + struct btrfs_inode_extref *extref; + extref = btrfs_item_ptr(path->nodes[0], path->slots[0], + struct btrfs_inode_extref); + len = btrfs_inode_extref_name_len(path->nodes[0], extref); + ret = fs_path_add_from_extent_buffer(name, path->nodes[0], + (unsigned long)&extref->name, len); + parent_dir = btrfs_inode_extref_parent(path->nodes[0], extref); + } if (ret < 0) goto out; btrfs_release_path(path); - ret = get_inode_info(root, found_key.offset, NULL, dir_gen, NULL, NULL, + ret = get_inode_info(root, parent_dir, NULL, dir_gen, NULL, NULL, NULL, NULL); if (ret < 0) goto out; - *dir = found_key.offset; + *dir = parent_dir; out: btrfs_free_path(path); @@ -2430,7 +2462,8 @@ verbose_printk("btrfs: send_create_inode %llu\n", ino); TLV_PUT_PATH(sctx, BTRFS_SEND_A_PATH_LINK, p); } else if (S_ISCHR(mode) || S_ISBLK(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { - TLV_PUT_U64(sctx, BTRFS_SEND_A_RDEV, rdev); + TLV_PUT_U64(sctx, BTRFS_SEND_A_RDEV, new_encode_dev(rdev)); + TLV_PUT_U64(sctx, BTRFS_SEND_A_MODE, mode); } ret = send_cmd(sctx); @@ -3226,7 +3259,8 @@ static int process_all_refs(struct send_ctx *sctx, btrfs_item_key_to_cpu(eb, &found_key, slot); if (found_key.objectid != key.objectid || - found_key.type != key.type) + (found_key.type != BTRFS_INODE_REF_KEY && + found_key.type != BTRFS_INODE_EXTREF_KEY)) break; ret = iterate_inode_ref(sctx, root, path, &found_key, 0, cb, @@ -3987,7 +4021,7 @@ static int process_recorded_refs_if_needed(struct send_ctx *sctx, int at_end) if (sctx->cur_ino == 0) goto out; if (!at_end && sctx->cur_ino == sctx->cmp_key->objectid && - sctx->cmp_key->type <= BTRFS_INODE_REF_KEY) + sctx->cmp_key->type <= BTRFS_INODE_EXTREF_KEY) goto out; if (list_empty(&sctx->new_refs) && list_empty(&sctx->deleted_refs)) goto out; @@ -4033,22 +4067,21 @@ static int finish_inode_if_needed(struct send_ctx *sctx, int at_end) if (ret < 0) goto out; - if (!S_ISLNK(sctx->cur_inode_mode)) { - if (!sctx->parent_root || sctx->cur_inode_new) { + if (!sctx->parent_root || sctx->cur_inode_new) { + need_chown = 1; + if (!S_ISLNK(sctx->cur_inode_mode)) need_chmod = 1; - need_chown = 1; - } else { - ret = get_inode_info(sctx->parent_root, sctx->cur_ino, - NULL, NULL, &right_mode, &right_uid, - &right_gid, NULL); - if (ret < 0) - goto out; + } else { + ret = get_inode_info(sctx->parent_root, sctx->cur_ino, + NULL, NULL, &right_mode, &right_uid, + &right_gid, NULL); + if (ret < 0) + goto out; - if (left_uid != right_uid || left_gid != right_gid) - need_chown = 1; - if (left_mode != right_mode) - need_chmod = 1; - } + if (left_uid != right_uid || left_gid != right_gid) + need_chown = 1; + if (!S_ISLNK(sctx->cur_inode_mode) && left_mode != right_mode) + need_chmod = 1; } if (S_ISREG(sctx->cur_inode_mode)) { @@ -4335,7 +4368,8 @@ static int changed_cb(struct btrfs_root *left_root, if (key->type == BTRFS_INODE_ITEM_KEY) ret = changed_inode(sctx, result); - else if (key->type == BTRFS_INODE_REF_KEY) + else if (key->type == BTRFS_INODE_REF_KEY || + key->type == BTRFS_INODE_EXTREF_KEY) ret = changed_ref(sctx, result); else if (key->type == BTRFS_XATTR_ITEM_KEY) ret = changed_xattr(sctx, result); diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 77db875b5116..04bbfb1052eb 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1200,7 +1200,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, btrfs_i_size_write(parent_inode, parent_inode->i_size + dentry->d_name.len * 2); parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME; - ret = btrfs_update_inode(trans, parent_root, parent_inode); + ret = btrfs_update_inode_fallback(trans, parent_root, parent_inode); if (ret) btrfs_abort_transaction(trans, root, ret); fail: diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 029b903a4ae3..0f5ebb72a5ea 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1819,6 +1819,13 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) "Failed to relocate sys chunks after " "device initialization. This can be fixed " "using the \"btrfs balance\" command."); + trans = btrfs_attach_transaction(root); + if (IS_ERR(trans)) { + if (PTR_ERR(trans) == -ENOENT) + return 0; + return PTR_ERR(trans); + } + ret = btrfs_commit_transaction(trans, root); } return ret; diff --git a/fs/char_dev.c b/fs/char_dev.c index 3f152b92a94a..afc2bb691780 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -471,9 +471,19 @@ static int exact_lock(dev_t dev, void *data) */ int cdev_add(struct cdev *p, dev_t dev, unsigned count) { + int error; + p->dev = dev; p->count = count; - return kobj_map(cdev_map, dev, count, NULL, exact_match, exact_lock, p); + + error = kobj_map(cdev_map, dev, count, NULL, + exact_match, exact_lock, p); + if (error) + return error; + + kobject_get(p->kobj.parent); + + return 0; } static void cdev_unmap(dev_t dev, unsigned count) @@ -498,14 +508,20 @@ void cdev_del(struct cdev *p) static void cdev_default_release(struct kobject *kobj) { struct cdev *p = container_of(kobj, struct cdev, kobj); + struct kobject *parent = kobj->parent; + cdev_purge(p); + kobject_put(parent); } static void cdev_dynamic_release(struct kobject *kobj) { struct cdev *p = container_of(kobj, struct cdev, kobj); + struct kobject *parent = kobj->parent; + cdev_purge(p); kfree(p); + kobject_put(parent); } static struct kobj_type ktype_cdev_default = { diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index f5054025f9da..4c6285fff598 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, err = get_user(palp, &up->palette); err |= get_user(length, &up->length); + if (err) + return -EFAULT; up_native = compat_alloc_user_space(sizeof(struct video_spu_palette)); err = put_user(compat_ptr(palp), &up_native->palette); diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 1b5089067d01..cf1821784a16 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -174,8 +174,7 @@ void ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh, ext4_free_inodes_set(sb, gdp, 0); ext4_itable_unused_set(sb, gdp, 0); memset(bh->b_data, 0xff, sb->s_blocksize); - ext4_block_bitmap_csum_set(sb, block_group, gdp, bh, - EXT4_BLOCKS_PER_GROUP(sb) / 8); + ext4_block_bitmap_csum_set(sb, block_group, gdp, bh); return; } memset(bh->b_data, 0, sb->s_blocksize); @@ -212,8 +211,7 @@ void ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh, */ ext4_mark_bitmap_end(num_clusters_in_group(sb, block_group), sb->s_blocksize * 8, bh->b_data); - ext4_block_bitmap_csum_set(sb, block_group, gdp, bh, - EXT4_BLOCKS_PER_GROUP(sb) / 8); + ext4_block_bitmap_csum_set(sb, block_group, gdp, bh); ext4_group_desc_csum_set(sb, block_group, gdp); } @@ -350,7 +348,7 @@ void ext4_validate_block_bitmap(struct super_block *sb, return; } if (unlikely(!ext4_block_bitmap_csum_verify(sb, block_group, - desc, bh, EXT4_BLOCKS_PER_GROUP(sb) / 8))) { + desc, bh))) { ext4_unlock_group(sb, block_group); ext4_error(sb, "bg %u: bad block bitmap checksum", block_group); return; diff --git a/fs/ext4/bitmap.c b/fs/ext4/bitmap.c index 5c2d1813ebe9..3285aa5a706a 100644 --- a/fs/ext4/bitmap.c +++ b/fs/ext4/bitmap.c @@ -58,11 +58,12 @@ void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group, int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group, struct ext4_group_desc *gdp, - struct buffer_head *bh, int sz) + struct buffer_head *bh) { __u32 hi; __u32 provided, calculated; struct ext4_sb_info *sbi = EXT4_SB(sb); + int sz = EXT4_CLUSTERS_PER_GROUP(sb) / 8; if (!EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) @@ -84,8 +85,9 @@ int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group, void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group, struct ext4_group_desc *gdp, - struct buffer_head *bh, int sz) + struct buffer_head *bh) { + int sz = EXT4_CLUSTERS_PER_GROUP(sb) / 8; __u32 csum; struct ext4_sb_info *sbi = EXT4_SB(sb); diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 3ab2539b7b2e..3c20de1d59d0 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1882,10 +1882,10 @@ int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group, struct buffer_head *bh, int sz); void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group, struct ext4_group_desc *gdp, - struct buffer_head *bh, int sz); + struct buffer_head *bh); int ext4_block_bitmap_csum_verify(struct super_block *sb, ext4_group_t group, struct ext4_group_desc *gdp, - struct buffer_head *bh, int sz); + struct buffer_head *bh); /* balloc.c */ extern void ext4_validate_block_bitmap(struct super_block *sb, @@ -2063,8 +2063,7 @@ extern int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count); extern int ext4_calculate_overhead(struct super_block *sb); extern int ext4_superblock_csum_verify(struct super_block *sb, struct ext4_super_block *es); -extern void ext4_superblock_csum_set(struct super_block *sb, - struct ext4_super_block *es); +extern void ext4_superblock_csum_set(struct super_block *sb); extern void *ext4_kvmalloc(size_t size, gfp_t flags); extern void *ext4_kvzalloc(size_t size, gfp_t flags); extern void ext4_kvfree(void *ptr); diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c index bfa65b49d424..b4323ba846b5 100644 --- a/fs/ext4/ext4_jbd2.c +++ b/fs/ext4/ext4_jbd2.c @@ -143,17 +143,13 @@ int __ext4_handle_dirty_super(const char *where, unsigned int line, struct buffer_head *bh = EXT4_SB(sb)->s_sbh; int err = 0; + ext4_superblock_csum_set(sb); if (ext4_handle_valid(handle)) { - ext4_superblock_csum_set(sb, - (struct ext4_super_block *)bh->b_data); err = jbd2_journal_dirty_metadata(handle, bh); if (err) ext4_journal_abort_handle(where, line, __func__, bh, handle, err); - } else { - ext4_superblock_csum_set(sb, - (struct ext4_super_block *)bh->b_data); + } else mark_buffer_dirty(bh); - } return err; } diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 1c94cca35ed1..7011ac967208 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -52,6 +52,9 @@ #define EXT4_EXT_MARK_UNINIT1 0x2 /* mark first half uninitialized */ #define EXT4_EXT_MARK_UNINIT2 0x4 /* mark second half uninitialized */ +#define EXT4_EXT_DATA_VALID1 0x8 /* first half contains valid data */ +#define EXT4_EXT_DATA_VALID2 0x10 /* second half contains valid data */ + static __le32 ext4_extent_block_csum(struct inode *inode, struct ext4_extent_header *eh) { @@ -2914,6 +2917,9 @@ static int ext4_split_extent_at(handle_t *handle, unsigned int ee_len, depth; int err = 0; + BUG_ON((split_flag & (EXT4_EXT_DATA_VALID1 | EXT4_EXT_DATA_VALID2)) == + (EXT4_EXT_DATA_VALID1 | EXT4_EXT_DATA_VALID2)); + ext_debug("ext4_split_extents_at: inode %lu, logical" "block %llu\n", inode->i_ino, (unsigned long long)split); @@ -2972,7 +2978,14 @@ static int ext4_split_extent_at(handle_t *handle, err = ext4_ext_insert_extent(handle, inode, path, &newex, flags); if (err == -ENOSPC && (EXT4_EXT_MAY_ZEROOUT & split_flag)) { - err = ext4_ext_zeroout(inode, &orig_ex); + if (split_flag & (EXT4_EXT_DATA_VALID1|EXT4_EXT_DATA_VALID2)) { + if (split_flag & EXT4_EXT_DATA_VALID1) + err = ext4_ext_zeroout(inode, ex2); + else + err = ext4_ext_zeroout(inode, ex); + } else + err = ext4_ext_zeroout(inode, &orig_ex); + if (err) goto fix_extent_len; /* update the extent length and mark as initialized */ @@ -3025,12 +3038,13 @@ static int ext4_split_extent(handle_t *handle, uninitialized = ext4_ext_is_uninitialized(ex); if (map->m_lblk + map->m_len < ee_block + ee_len) { - split_flag1 = split_flag & EXT4_EXT_MAY_ZEROOUT ? - EXT4_EXT_MAY_ZEROOUT : 0; + split_flag1 = split_flag & EXT4_EXT_MAY_ZEROOUT; flags1 = flags | EXT4_GET_BLOCKS_PRE_IO; if (uninitialized) split_flag1 |= EXT4_EXT_MARK_UNINIT1 | EXT4_EXT_MARK_UNINIT2; + if (split_flag & EXT4_EXT_DATA_VALID2) + split_flag1 |= EXT4_EXT_DATA_VALID1; err = ext4_split_extent_at(handle, inode, path, map->m_lblk + map->m_len, split_flag1, flags1); if (err) @@ -3043,8 +3057,8 @@ static int ext4_split_extent(handle_t *handle, return PTR_ERR(path); if (map->m_lblk >= ee_block) { - split_flag1 = split_flag & EXT4_EXT_MAY_ZEROOUT ? - EXT4_EXT_MAY_ZEROOUT : 0; + split_flag1 = split_flag & (EXT4_EXT_MAY_ZEROOUT | + EXT4_EXT_DATA_VALID2); if (uninitialized) split_flag1 |= EXT4_EXT_MARK_UNINIT1; if (split_flag & EXT4_EXT_MARK_UNINIT2) @@ -3323,26 +3337,47 @@ static int ext4_split_unwritten_extents(handle_t *handle, split_flag |= ee_block + ee_len <= eof_block ? EXT4_EXT_MAY_ZEROOUT : 0; split_flag |= EXT4_EXT_MARK_UNINIT2; - + if (flags & EXT4_GET_BLOCKS_CONVERT) + split_flag |= EXT4_EXT_DATA_VALID2; flags |= EXT4_GET_BLOCKS_PRE_IO; return ext4_split_extent(handle, inode, path, map, split_flag, flags); } static int ext4_convert_unwritten_extents_endio(handle_t *handle, - struct inode *inode, - struct ext4_ext_path *path) + struct inode *inode, + struct ext4_map_blocks *map, + struct ext4_ext_path *path) { struct ext4_extent *ex; + ext4_lblk_t ee_block; + unsigned int ee_len; int depth; int err = 0; depth = ext_depth(inode); ex = path[depth].p_ext; + ee_block = le32_to_cpu(ex->ee_block); + ee_len = ext4_ext_get_actual_len(ex); ext_debug("ext4_convert_unwritten_extents_endio: inode %lu, logical" "block %llu, max_blocks %u\n", inode->i_ino, - (unsigned long long)le32_to_cpu(ex->ee_block), - ext4_ext_get_actual_len(ex)); + (unsigned long long)ee_block, ee_len); + + /* If extent is larger than requested then split is required */ + if (ee_block != map->m_lblk || ee_len > map->m_len) { + err = ext4_split_unwritten_extents(handle, inode, map, path, + EXT4_GET_BLOCKS_CONVERT); + if (err < 0) + goto out; + ext4_ext_drop_refs(path); + path = ext4_ext_find_extent(inode, map->m_lblk, path); + if (IS_ERR(path)) { + err = PTR_ERR(path); + goto out; + } + depth = ext_depth(inode); + ex = path[depth].p_ext; + } err = ext4_ext_get_access(handle, inode, path + depth); if (err) @@ -3652,7 +3687,7 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode, } /* IO end_io complete, convert the filled extent to written */ if ((flags & EXT4_GET_BLOCKS_CONVERT)) { - ret = ext4_convert_unwritten_extents_endio(handle, inode, + ret = ext4_convert_unwritten_extents_endio(handle, inode, map, path); if (ret >= 0) { ext4_update_inode_fsync_trans(handle, inode, 1); @@ -4428,6 +4463,9 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) */ if (len <= EXT_UNINIT_MAX_LEN << blkbits) flags |= EXT4_GET_BLOCKS_NO_NORMALIZE; + + /* Prevent race condition between unwritten */ + ext4_flush_unwritten_io(inode); retry: while (ret >= 0 && ret < max_blocks) { map.m_lblk = map.m_lblk + ret; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index fa36372f3fdf..4facdd29a350 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -762,9 +762,7 @@ got: ext4_free_group_clusters_set(sb, gdp, ext4_free_clusters_after_init(sb, group, gdp)); ext4_block_bitmap_csum_set(sb, group, gdp, - block_bitmap_bh, - EXT4_BLOCKS_PER_GROUP(sb) / - 8); + block_bitmap_bh); ext4_group_desc_csum_set(sb, group, gdp); } ext4_unlock_group(sb, group); diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index f8b27bf80aca..526e55358606 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2805,8 +2805,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac, } len = ext4_free_group_clusters(sb, gdp) - ac->ac_b_ex.fe_len; ext4_free_group_clusters_set(sb, gdp, len); - ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh, - EXT4_BLOCKS_PER_GROUP(sb) / 8); + ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh); ext4_group_desc_csum_set(sb, ac->ac_b_ex.fe_group, gdp); ext4_unlock_group(sb, ac->ac_b_ex.fe_group); @@ -4666,8 +4665,7 @@ do_more: ret = ext4_free_group_clusters(sb, gdp) + count_clusters; ext4_free_group_clusters_set(sb, gdp, ret); - ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh, - EXT4_BLOCKS_PER_GROUP(sb) / 8); + ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh); ext4_group_desc_csum_set(sb, block_group, gdp); ext4_unlock_group(sb, block_group); percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters); @@ -4811,8 +4809,7 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb, mb_free_blocks(NULL, &e4b, bit, count); blk_free_count = blocks_freed + ext4_free_group_clusters(sb, desc); ext4_free_group_clusters_set(sb, desc, blk_free_count); - ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh, - EXT4_BLOCKS_PER_GROUP(sb) / 8); + ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh); ext4_group_desc_csum_set(sb, block_group, desc); ext4_unlock_group(sb, block_group); percpu_counter_add(&sbi->s_freeclusters_counter, @@ -4993,8 +4990,9 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range) minlen = EXT4_NUM_B2C(EXT4_SB(sb), range->minlen >> sb->s_blocksize_bits); - if (unlikely(minlen > EXT4_CLUSTERS_PER_GROUP(sb)) || - unlikely(start >= max_blks)) + if (minlen > EXT4_CLUSTERS_PER_GROUP(sb) || + start >= max_blks || + range->len < sb->s_blocksize) return -EINVAL; if (end >= max_blks) end = max_blks - 1; diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 7a75e1086961..47bf06a2765d 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1212,8 +1212,7 @@ static int ext4_set_bitmap_checksums(struct super_block *sb, bh = ext4_get_bitmap(sb, group_data->block_bitmap); if (!bh) return -EIO; - ext4_block_bitmap_csum_set(sb, group, gdp, bh, - EXT4_BLOCKS_PER_GROUP(sb) / 8); + ext4_block_bitmap_csum_set(sb, group, gdp, bh); brelse(bh); return 0; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 7265a0367476..80928f716850 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -143,9 +143,10 @@ int ext4_superblock_csum_verify(struct super_block *sb, return es->s_checksum == ext4_superblock_csum(sb, es); } -void ext4_superblock_csum_set(struct super_block *sb, - struct ext4_super_block *es) +void ext4_superblock_csum_set(struct super_block *sb) { + struct ext4_super_block *es = EXT4_SB(sb)->s_es; + if (!EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) return; @@ -1963,7 +1964,7 @@ static int ext4_fill_flex_info(struct super_block *sb) sbi->s_log_groups_per_flex = 0; return 1; } - groups_per_flex = 1 << sbi->s_log_groups_per_flex; + groups_per_flex = 1U << sbi->s_log_groups_per_flex; err = ext4_alloc_flex_bg_array(sb, sbi->s_groups_count); if (err) @@ -4381,7 +4382,7 @@ static int ext4_commit_super(struct super_block *sb, int sync) cpu_to_le32(percpu_counter_sum_positive( &EXT4_SB(sb)->s_freeinodes_counter)); BUFFER_TRACE(sbh, "marking dirty"); - ext4_superblock_csum_set(sb, es); + ext4_superblock_csum_set(sb); mark_buffer_dirty(sbh); if (sync) { error = sync_dirty_buffer(sbh); diff --git a/fs/jfs/jfs_discard.c b/fs/jfs/jfs_discard.c index 9947563e4175..dfcd50304559 100644 --- a/fs/jfs/jfs_discard.c +++ b/fs/jfs/jfs_discard.c @@ -83,7 +83,7 @@ int jfs_ioc_trim(struct inode *ip, struct fstrim_range *range) struct bmap *bmp = JFS_SBI(ip->i_sb)->bmap; struct super_block *sb = ipbmap->i_sb; int agno, agno_end; - s64 start, end, minlen; + u64 start, end, minlen; u64 trimmed = 0; /** @@ -93,15 +93,19 @@ int jfs_ioc_trim(struct inode *ip, struct fstrim_range *range) * minlen: minimum extent length in Bytes */ start = range->start >> sb->s_blocksize_bits; - if (start < 0) - start = 0; end = start + (range->len >> sb->s_blocksize_bits) - 1; - if (end >= bmp->db_mapsize) - end = bmp->db_mapsize - 1; minlen = range->minlen >> sb->s_blocksize_bits; - if (minlen <= 0) + if (minlen == 0) minlen = 1; + if (minlen > bmp->db_agsize || + start >= bmp->db_mapsize || + range->len < sb->s_blocksize) + return -EINVAL; + + if (end >= bmp->db_mapsize) + end = bmp->db_mapsize - 1; + /** * we trim all ag's within the range */ diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index e4fb3ba5a58a..3d7e09bcc0e9 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -85,29 +85,38 @@ static struct rpc_clnt *nsm_create(struct net *net) return rpc_create(&args); } +static struct rpc_clnt *nsm_client_set(struct lockd_net *ln, + struct rpc_clnt *clnt) +{ + spin_lock(&ln->nsm_clnt_lock); + if (ln->nsm_users == 0) { + if (clnt == NULL) + goto out; + ln->nsm_clnt = clnt; + } + clnt = ln->nsm_clnt; + ln->nsm_users++; +out: + spin_unlock(&ln->nsm_clnt_lock); + return clnt; +} + static struct rpc_clnt *nsm_client_get(struct net *net) { - static DEFINE_MUTEX(nsm_create_mutex); - struct rpc_clnt *clnt; + struct rpc_clnt *clnt, *new; struct lockd_net *ln = net_generic(net, lockd_net_id); - spin_lock(&ln->nsm_clnt_lock); - if (ln->nsm_users) { - ln->nsm_users++; - clnt = ln->nsm_clnt; - spin_unlock(&ln->nsm_clnt_lock); + clnt = nsm_client_set(ln, NULL); + if (clnt != NULL) goto out; - } - spin_unlock(&ln->nsm_clnt_lock); - mutex_lock(&nsm_create_mutex); - clnt = nsm_create(net); - if (!IS_ERR(clnt)) { - ln->nsm_clnt = clnt; - smp_wmb(); - ln->nsm_users = 1; - } - mutex_unlock(&nsm_create_mutex); + clnt = new = nsm_create(net); + if (IS_ERR(clnt)) + goto out; + + clnt = nsm_client_set(ln, new); + if (clnt != new) + rpc_shutdown_client(new); out: return clnt; } @@ -115,18 +124,16 @@ out: static void nsm_client_put(struct net *net) { struct lockd_net *ln = net_generic(net, lockd_net_id); - struct rpc_clnt *clnt = ln->nsm_clnt; - int shutdown = 0; + struct rpc_clnt *clnt = NULL; spin_lock(&ln->nsm_clnt_lock); - if (ln->nsm_users) { - if (--ln->nsm_users) - ln->nsm_clnt = NULL; - shutdown = !ln->nsm_users; + ln->nsm_users--; + if (ln->nsm_users == 0) { + clnt = ln->nsm_clnt; + ln->nsm_clnt = NULL; } spin_unlock(&ln->nsm_clnt_lock); - - if (shutdown) + if (clnt != NULL) rpc_shutdown_client(clnt); } diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 9a521fb39869..5088b57b078a 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -241,7 +241,7 @@ static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt, svc_exit_thread(cb_info->rqst); cb_info->rqst = NULL; cb_info->task = NULL; - return PTR_ERR(cb_info->task); + return ret; } dprintk("nfs_callback_up: service started\n"); return 0; diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 52d847212066..2e45fd9c02a3 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -122,12 +122,21 @@ static void filelayout_reset_read(struct nfs_read_data *data) } } +static void filelayout_fenceme(struct inode *inode, struct pnfs_layout_hdr *lo) +{ + if (!test_and_clear_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) + return; + clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags); + pnfs_return_layout(inode); +} + static int filelayout_async_handle_error(struct rpc_task *task, struct nfs4_state *state, struct nfs_client *clp, struct pnfs_layout_segment *lseg) { - struct inode *inode = lseg->pls_layout->plh_inode; + struct pnfs_layout_hdr *lo = lseg->pls_layout; + struct inode *inode = lo->plh_inode; struct nfs_server *mds_server = NFS_SERVER(inode); struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg); struct nfs_client *mds_client = mds_server->nfs_client; @@ -204,10 +213,8 @@ static int filelayout_async_handle_error(struct rpc_task *task, dprintk("%s DS connection error %d\n", __func__, task->tk_status); nfs4_mark_deviceid_unavailable(devid); - clear_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags); - _pnfs_return_layout(inode); + set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); rpc_wake_up(&tbl->slot_tbl_waitq); - nfs4_ds_disconnect(clp); /* fall through */ default: reset: @@ -331,7 +338,9 @@ static void filelayout_read_count_stats(struct rpc_task *task, void *data) static void filelayout_read_release(void *data) { struct nfs_read_data *rdata = data; + struct pnfs_layout_hdr *lo = rdata->header->lseg->pls_layout; + filelayout_fenceme(lo->plh_inode, lo); nfs_put_client(rdata->ds_clp); rdata->header->mds_ops->rpc_release(data); } @@ -429,7 +438,9 @@ static void filelayout_write_count_stats(struct rpc_task *task, void *data) static void filelayout_write_release(void *data) { struct nfs_write_data *wdata = data; + struct pnfs_layout_hdr *lo = wdata->header->lseg->pls_layout; + filelayout_fenceme(lo->plh_inode, lo); nfs_put_client(wdata->ds_clp); wdata->header->mds_ops->rpc_release(data); } @@ -739,7 +750,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, goto out_err; if (fl->num_fh > 0) { - fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *), + fl->fh_array = kcalloc(fl->num_fh, sizeof(fl->fh_array[0]), gfp_flags); if (!fl->fh_array) goto out_err; diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index dca47d786710..8c07241fe52b 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -149,6 +149,5 @@ extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); extern void nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); struct nfs4_file_layout_dsaddr * filelayout_get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags); -void nfs4_ds_disconnect(struct nfs_client *clp); #endif /* FS_NFS_NFS4FILELAYOUT_H */ diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index 3336d5eaf879..a8eaa9b7bb0f 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -149,28 +149,6 @@ _data_server_lookup_locked(const struct list_head *dsaddrs) } /* - * Lookup DS by nfs_client pointer. Zero data server client pointer - */ -void nfs4_ds_disconnect(struct nfs_client *clp) -{ - struct nfs4_pnfs_ds *ds; - struct nfs_client *found = NULL; - - dprintk("%s clp %p\n", __func__, clp); - spin_lock(&nfs4_ds_cache_lock); - list_for_each_entry(ds, &nfs4_data_server_cache, ds_node) - if (ds->ds_clp && ds->ds_clp == clp) { - found = ds->ds_clp; - ds->ds_clp = NULL; - } - spin_unlock(&nfs4_ds_cache_lock); - if (found) { - set_bit(NFS_CS_STOP_RENEW, &clp->cl_res_state); - nfs_put_client(clp); - } -} - -/* * Create an rpc connection to the nfs4_pnfs_ds data server * Currently only supports IPv4 and IPv6 addresses */ diff --git a/fs/nfs/nfs4getroot.c b/fs/nfs/nfs4getroot.c index 6a83780e0ce6..549462e5b9b0 100644 --- a/fs/nfs/nfs4getroot.c +++ b/fs/nfs/nfs4getroot.c @@ -5,6 +5,7 @@ #include <linux/nfs_fs.h> #include "nfs4_fs.h" +#include "internal.h" #define NFSDBG_FACILITY NFSDBG_CLIENT diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index be731e6b7b9c..c6f990656f89 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -369,7 +369,7 @@ void objio_free_result(struct objlayout_io_res *oir) kfree(objios); } -enum pnfs_osd_errno osd_pri_2_pnfs_err(enum osd_err_priority oep) +static enum pnfs_osd_errno osd_pri_2_pnfs_err(enum osd_err_priority oep) { switch (oep) { case OSD_ERR_PRI_NO_ERROR: @@ -574,7 +574,7 @@ static bool objio_pg_test(struct nfs_pageio_descriptor *pgio, (unsigned long)pgio->pg_layout_private; } -void objio_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req) +static void objio_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req) { pnfs_generic_pg_init_read(pgio, req); if (unlikely(pgio->pg_lseg == NULL)) @@ -604,7 +604,7 @@ static bool aligned_on_raid_stripe(u64 offset, struct ore_layout *layout, return false; } -void objio_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req) +static void objio_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req) { unsigned long stripe_end = 0; u64 wb_size; diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 2d722dba1111..dbf7bba52da0 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -62,6 +62,7 @@ enum { NFS_LAYOUT_RW_FAILED, /* get rw layout failed stop trying */ NFS_LAYOUT_BULK_RECALL, /* bulk recall affecting layout */ NFS_LAYOUT_ROC, /* some lseg had roc bit set */ + NFS_LAYOUT_RETURN, /* Return this layout ASAP */ }; enum layoutdriver_policy_flags { diff --git a/fs/proc/stat.c b/fs/proc/stat.c index 64c3b3172367..e296572c73ed 100644 --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -45,10 +45,13 @@ static cputime64_t get_iowait_time(int cpu) static u64 get_idle_time(int cpu) { - u64 idle, idle_time = get_cpu_idle_time_us(cpu, NULL); + u64 idle, idle_time = -1ULL; + + if (cpu_online(cpu)) + idle_time = get_cpu_idle_time_us(cpu, NULL); if (idle_time == -1ULL) - /* !NO_HZ so we can rely on cpustat.idle */ + /* !NO_HZ or cpu offline so we can rely on cpustat.idle */ idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE]; else idle = usecs_to_cputime64(idle_time); @@ -58,10 +61,13 @@ static u64 get_idle_time(int cpu) static u64 get_iowait_time(int cpu) { - u64 iowait, iowait_time = get_cpu_iowait_time_us(cpu, NULL); + u64 iowait, iowait_time = -1ULL; + + if (cpu_online(cpu)) + iowait_time = get_cpu_iowait_time_us(cpu, NULL); if (iowait_time == -1ULL) - /* !NO_HZ so we can rely on cpustat.iowait */ + /* !NO_HZ or cpu offline so we can rely on cpustat.iowait */ iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT]; else iowait = usecs_to_cputime64(iowait_time); diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index c78bb997e2c6..af1cbaf535ed 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -205,6 +205,8 @@ {0x1002, 0x6788, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x678A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6790, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6791, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6792, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6798, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6799, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ {0x1002, 0x679A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI|RADEON_NEW_MEMMAP}, \ @@ -217,6 +219,7 @@ {0x1002, 0x6808, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6809, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6810, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ + {0x1002, 0x6811, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6816, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6817, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ {0x1002, 0x6818, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 569d67d4243e..d452ee191066 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -57,6 +57,7 @@ int memblock_add(phys_addr_t base, phys_addr_t size); int memblock_remove(phys_addr_t base, phys_addr_t size); int memblock_free(phys_addr_t base, phys_addr_t size); int memblock_reserve(phys_addr_t base, phys_addr_t size); +void memblock_trim_memory(phys_addr_t align); #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn, diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 2e902359aee5..6bfb2faa0b19 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -803,12 +803,16 @@ static inline void perf_event_task_tick(void) { } do { \ static struct notifier_block fn##_nb __cpuinitdata = \ { .notifier_call = fn, .priority = CPU_PRI_PERF }; \ + unsigned long cpu = smp_processor_id(); \ + unsigned long flags; \ fn(&fn##_nb, (unsigned long)CPU_UP_PREPARE, \ - (void *)(unsigned long)smp_processor_id()); \ + (void *)(unsigned long)cpu); \ + local_irq_save(flags); \ fn(&fn##_nb, (unsigned long)CPU_STARTING, \ - (void *)(unsigned long)smp_processor_id()); \ + (void *)(unsigned long)cpu); \ + local_irq_restore(flags); \ fn(&fn##_nb, (unsigned long)CPU_ONLINE, \ - (void *)(unsigned long)smp_processor_id()); \ + (void *)(unsigned long)cpu); \ register_cpu_notifier(&fn##_nb); \ } while (0) diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h index 214caa33433b..2ac60c9cf644 100644 --- a/include/linux/rbtree_augmented.h +++ b/include/linux/rbtree_augmented.h @@ -24,6 +24,7 @@ #ifndef _LINUX_RBTREE_AUGMENTED_H #define _LINUX_RBTREE_AUGMENTED_H +#include <linux/compiler.h> #include <linux/rbtree.h> /* diff --git a/include/linux/spi/tsc2005.h b/include/linux/spi/tsc2005.h index d9b0c84220c7..8f721e465e05 100644 --- a/include/linux/spi/tsc2005.h +++ b/include/linux/spi/tsc2005.h @@ -3,8 +3,6 @@ * * Copyright (C) 2009-2010 Nokia Corporation * - * Contact: Aaro Koskinen <aaro.koskinen@nokia.com> - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index e6f0331e3d45..24594571c5a3 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -35,16 +35,6 @@ struct inode; # include <asm/uprobes.h> #endif -/* flags that denote/change uprobes behaviour */ - -/* Have a copy of original instruction */ -#define UPROBE_COPY_INSN 0x1 - -/* Dont run handlers when first register/ last unregister in progress*/ -#define UPROBE_RUN_HANDLER 0x2 -/* Can skip singlestep */ -#define UPROBE_SKIP_SSTEP 0x4 - struct uprobe_consumer { int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs); /* @@ -59,7 +49,6 @@ struct uprobe_consumer { #ifdef CONFIG_UPROBES enum uprobe_task_state { UTASK_RUNNING, - UTASK_BP_HIT, UTASK_SSTEP, UTASK_SSTEP_ACK, UTASK_SSTEP_TRAPPED, diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h index aecee9d112cb..694dcaf266e6 100644 --- a/include/xen/grant_table.h +++ b/include/xen/grant_table.h @@ -170,7 +170,7 @@ gnttab_set_unmap_op(struct gnttab_unmap_grant_ref *unmap, phys_addr_t addr, unmap->dev_bus_addr = 0; } -int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes, +int arch_gnttab_map_shared(xen_pfn_t *frames, unsigned long nr_gframes, unsigned long max_nr_gframes, void **__shared); int arch_gnttab_map_status(uint64_t *frames, unsigned long nr_gframes, diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h index f9f8b975ae74..e40fae9bf11a 100644 --- a/include/xen/interface/grant_table.h +++ b/include/xen/interface/grant_table.h @@ -310,7 +310,7 @@ struct gnttab_setup_table { uint32_t nr_frames; /* OUT parameters. */ int16_t status; /* GNTST_* */ - GUEST_HANDLE(ulong) frame_list; + GUEST_HANDLE(xen_pfn_t) frame_list; }; DEFINE_GUEST_HANDLE_STRUCT(gnttab_setup_table); diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h index b66d04ce6957..90712e2072d5 100644 --- a/include/xen/interface/memory.h +++ b/include/xen/interface/memory.h @@ -179,28 +179,8 @@ struct xen_add_to_physmap { }; DEFINE_GUEST_HANDLE_STRUCT(xen_add_to_physmap); -/* - * Translates a list of domain-specific GPFNs into MFNs. Returns a -ve error - * code on failure. This call only works for auto-translated guests. - */ -#define XENMEM_translate_gpfn_list 8 -struct xen_translate_gpfn_list { - /* Which domain to translate for? */ - domid_t domid; - - /* Length of list. */ - xen_ulong_t nr_gpfns; - - /* List of GPFNs to translate. */ - GUEST_HANDLE(ulong) gpfn_list; - - /* - * Output list to contain MFN translations. May be the same as the input - * list (in which case each input GPFN is overwritten with the output MFN). - */ - GUEST_HANDLE(ulong) mfn_list; -}; -DEFINE_GUEST_HANDLE_STRUCT(xen_translate_gpfn_list); +/*** REMOVED ***/ +/*#define XENMEM_translate_gpfn_list 8*/ /* * Returns the pseudo-physical memory map as it was when the domain diff --git a/kernel/Makefile b/kernel/Makefile index 0dfeca4324ee..86e3285ae7e5 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -174,10 +174,8 @@ signing_key.priv signing_key.x509: x509.genkey @echo "###" @echo "### If this takes a long time, you might wish to run rngd in the" @echo "### background to keep the supply of entropy topped up. It" - @echo "### needs to be run as root, and should use a hardware random" - @echo "### number generator if one is available, eg:" - @echo "###" - @echo "### rngd -r /dev/hwrandom" + @echo "### needs to be run as root, and uses a hardware random" + @echo "### number generator if one is available." @echo "###" openssl req -new -nodes -utf8 $(sign_key_with_hash) -days 36500 -batch \ -x509 -config x509.genkey \ diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 13774b3b39aa..f24f724620dd 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1962,9 +1962,8 @@ static void cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp, * trading it for newcg is protected by cgroup_mutex, we're safe to drop * it here; it will be freed under RCU. */ - put_css_set(oldcg); - set_bit(CGRP_RELEASABLE, &oldcgrp->flags); + put_css_set(oldcg); } /** @@ -4815,31 +4814,20 @@ static const struct file_operations proc_cgroupstats_operations = { * * A pointer to the shared css_set was automatically copied in * fork.c by dup_task_struct(). However, we ignore that copy, since - * it was not made under the protection of RCU, cgroup_mutex or - * threadgroup_change_begin(), so it might no longer be a valid - * cgroup pointer. cgroup_attach_task() might have already changed - * current->cgroups, allowing the previously referenced cgroup - * group to be removed and freed. - * - * Outside the pointer validity we also need to process the css_set - * inheritance between threadgoup_change_begin() and - * threadgoup_change_end(), this way there is no leak in any process - * wide migration performed by cgroup_attach_proc() that could otherwise - * miss a thread because it is too early or too late in the fork stage. + * it was not made under the protection of RCU or cgroup_mutex, so + * might no longer be a valid cgroup pointer. cgroup_attach_task() might + * have already changed current->cgroups, allowing the previously + * referenced cgroup group to be removed and freed. * * At the point that cgroup_fork() is called, 'current' is the parent * task, and the passed argument 'child' points to the child task. */ void cgroup_fork(struct task_struct *child) { - /* - * We don't need to task_lock() current because current->cgroups - * can't be changed concurrently here. The parent obviously hasn't - * exited and called cgroup_exit(), and we are synchronized against - * cgroup migration through threadgroup_change_begin(). - */ + task_lock(current); child->cgroups = current->cgroups; get_css_set(child->cgroups); + task_unlock(current); INIT_LIST_HEAD(&child->cg_list); } @@ -4895,19 +4883,10 @@ void cgroup_post_fork(struct task_struct *child) */ if (use_task_css_set_links) { write_lock(&css_set_lock); - if (list_empty(&child->cg_list)) { - /* - * It's safe to use child->cgroups without task_lock() - * here because we are protected through - * threadgroup_change_begin() against concurrent - * css_set change in cgroup_task_migrate(). Also - * the task can't exit at that point until - * wake_up_new_task() is called, so we are protected - * against cgroup_exit() setting child->cgroup to - * init_css_set. - */ + task_lock(child); + if (list_empty(&child->cg_list)) list_add(&child->cg_list, &child->cgroups->tasks); - } + task_unlock(child); write_unlock(&css_set_lock); } } diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 98256bc71ee1..5cc4e7e42e68 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -78,15 +78,23 @@ static struct mutex uprobes_mmap_mutex[UPROBES_HASH_SZ]; */ static atomic_t uprobe_events = ATOMIC_INIT(0); +/* Have a copy of original instruction */ +#define UPROBE_COPY_INSN 0 +/* Dont run handlers when first register/ last unregister in progress*/ +#define UPROBE_RUN_HANDLER 1 +/* Can skip singlestep */ +#define UPROBE_SKIP_SSTEP 2 + struct uprobe { struct rb_node rb_node; /* node in the rb tree */ atomic_t ref; struct rw_semaphore consumer_rwsem; + struct mutex copy_mutex; /* TODO: kill me and UPROBE_COPY_INSN */ struct list_head pending_list; struct uprobe_consumer *consumers; struct inode *inode; /* Also hold a ref to inode */ loff_t offset; - int flags; + unsigned long flags; struct arch_uprobe arch; }; @@ -100,17 +108,12 @@ struct uprobe { */ static bool valid_vma(struct vm_area_struct *vma, bool is_register) { - if (!vma->vm_file) - return false; - - if (!is_register) - return true; + vm_flags_t flags = VM_HUGETLB | VM_MAYEXEC | VM_SHARED; - if ((vma->vm_flags & (VM_HUGETLB|VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)) - == (VM_READ|VM_EXEC)) - return true; + if (is_register) + flags |= VM_WRITE; - return false; + return vma->vm_file && (vma->vm_flags & flags) == VM_MAYEXEC; } static unsigned long offset_to_vaddr(struct vm_area_struct *vma, loff_t offset) @@ -193,19 +196,44 @@ bool __weak is_swbp_insn(uprobe_opcode_t *insn) return *insn == UPROBE_SWBP_INSN; } +static void copy_opcode(struct page *page, unsigned long vaddr, uprobe_opcode_t *opcode) +{ + void *kaddr = kmap_atomic(page); + memcpy(opcode, kaddr + (vaddr & ~PAGE_MASK), UPROBE_SWBP_INSN_SIZE); + kunmap_atomic(kaddr); +} + +static int verify_opcode(struct page *page, unsigned long vaddr, uprobe_opcode_t *new_opcode) +{ + uprobe_opcode_t old_opcode; + bool is_swbp; + + copy_opcode(page, vaddr, &old_opcode); + is_swbp = is_swbp_insn(&old_opcode); + + if (is_swbp_insn(new_opcode)) { + if (is_swbp) /* register: already installed? */ + return 0; + } else { + if (!is_swbp) /* unregister: was it changed by us? */ + return 0; + } + + return 1; +} + /* * NOTE: * Expect the breakpoint instruction to be the smallest size instruction for * the architecture. If an arch has variable length instruction and the * breakpoint instruction is not of the smallest length instruction - * supported by that architecture then we need to modify read_opcode / + * supported by that architecture then we need to modify is_swbp_at_addr and * write_opcode accordingly. This would never be a problem for archs that * have fixed length instructions. */ /* * write_opcode - write the opcode at a given virtual address. - * @auprobe: arch breakpointing information. * @mm: the probed process address space. * @vaddr: the virtual address to store the opcode. * @opcode: opcode to be written at @vaddr. @@ -216,8 +244,8 @@ bool __weak is_swbp_insn(uprobe_opcode_t *insn) * For mm @mm, write the opcode at @vaddr. * Return 0 (success) or a negative errno. */ -static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm, - unsigned long vaddr, uprobe_opcode_t opcode) +static int write_opcode(struct mm_struct *mm, unsigned long vaddr, + uprobe_opcode_t opcode) { struct page *old_page, *new_page; void *vaddr_old, *vaddr_new; @@ -226,10 +254,14 @@ static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm, retry: /* Read the page with vaddr into memory */ - ret = get_user_pages(NULL, mm, vaddr, 1, 0, 0, &old_page, &vma); + ret = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &old_page, &vma); if (ret <= 0) return ret; + ret = verify_opcode(old_page, vaddr, &opcode); + if (ret <= 0) + goto put_old; + ret = -ENOMEM; new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vaddr); if (!new_page) @@ -264,63 +296,6 @@ put_old: } /** - * read_opcode - read the opcode at a given virtual address. - * @mm: the probed process address space. - * @vaddr: the virtual address to read the opcode. - * @opcode: location to store the read opcode. - * - * Called with mm->mmap_sem held (for read and with a reference to - * mm. - * - * For mm @mm, read the opcode at @vaddr and store it in @opcode. - * Return 0 (success) or a negative errno. - */ -static int read_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_t *opcode) -{ - struct page *page; - void *vaddr_new; - int ret; - - ret = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &page, NULL); - if (ret <= 0) - return ret; - - vaddr_new = kmap_atomic(page); - vaddr &= ~PAGE_MASK; - memcpy(opcode, vaddr_new + vaddr, UPROBE_SWBP_INSN_SIZE); - kunmap_atomic(vaddr_new); - - put_page(page); - - return 0; -} - -static int is_swbp_at_addr(struct mm_struct *mm, unsigned long vaddr) -{ - uprobe_opcode_t opcode; - int result; - - if (current->mm == mm) { - pagefault_disable(); - result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr, - sizeof(opcode)); - pagefault_enable(); - - if (likely(result == 0)) - goto out; - } - - result = read_opcode(mm, vaddr, &opcode); - if (result) - return result; -out: - if (is_swbp_insn(&opcode)) - return 1; - - return 0; -} - -/** * set_swbp - store breakpoint at a given address. * @auprobe: arch specific probepoint information. * @mm: the probed process address space. @@ -331,18 +306,7 @@ out: */ int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr) { - int result; - /* - * See the comment near uprobes_hash(). - */ - result = is_swbp_at_addr(mm, vaddr); - if (result == 1) - return 0; - - if (result) - return result; - - return write_opcode(auprobe, mm, vaddr, UPROBE_SWBP_INSN); + return write_opcode(mm, vaddr, UPROBE_SWBP_INSN); } /** @@ -357,16 +321,7 @@ int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned int __weak set_orig_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr) { - int result; - - result = is_swbp_at_addr(mm, vaddr); - if (!result) - return -EINVAL; - - if (result != 1) - return result; - - return write_opcode(auprobe, mm, vaddr, *(uprobe_opcode_t *)auprobe->insn); + return write_opcode(mm, vaddr, *(uprobe_opcode_t *)auprobe->insn); } static int match_uprobe(struct uprobe *l, struct uprobe *r) @@ -473,7 +428,7 @@ static struct uprobe *insert_uprobe(struct uprobe *uprobe) spin_unlock(&uprobes_treelock); /* For now assume that the instruction need not be single-stepped */ - uprobe->flags |= UPROBE_SKIP_SSTEP; + __set_bit(UPROBE_SKIP_SSTEP, &uprobe->flags); return u; } @@ -495,6 +450,7 @@ static struct uprobe *alloc_uprobe(struct inode *inode, loff_t offset) uprobe->inode = igrab(inode); uprobe->offset = offset; init_rwsem(&uprobe->consumer_rwsem); + mutex_init(&uprobe->copy_mutex); /* add to uprobes_tree, sorted on inode:offset */ cur_uprobe = insert_uprobe(uprobe); @@ -515,7 +471,7 @@ static void handler_chain(struct uprobe *uprobe, struct pt_regs *regs) { struct uprobe_consumer *uc; - if (!(uprobe->flags & UPROBE_RUN_HANDLER)) + if (!test_bit(UPROBE_RUN_HANDLER, &uprobe->flags)) return; down_read(&uprobe->consumer_rwsem); @@ -621,29 +577,43 @@ static int copy_insn(struct uprobe *uprobe, struct file *filp) return __copy_insn(mapping, filp, uprobe->arch.insn, bytes, uprobe->offset); } -/* - * How mm->uprobes_state.count gets updated - * uprobe_mmap() increments the count if - * - it successfully adds a breakpoint. - * - it cannot add a breakpoint, but sees that there is a underlying - * breakpoint (via a is_swbp_at_addr()). - * - * uprobe_munmap() decrements the count if - * - it sees a underlying breakpoint, (via is_swbp_at_addr) - * (Subsequent uprobe_unregister wouldnt find the breakpoint - * unless a uprobe_mmap kicks in, since the old vma would be - * dropped just after uprobe_munmap.) - * - * uprobe_register increments the count if: - * - it successfully adds a breakpoint. - * - * uprobe_unregister decrements the count if: - * - it sees a underlying breakpoint and removes successfully. - * (via is_swbp_at_addr) - * (Subsequent uprobe_munmap wouldnt find the breakpoint - * since there is no underlying breakpoint after the - * breakpoint removal.) - */ +static int prepare_uprobe(struct uprobe *uprobe, struct file *file, + struct mm_struct *mm, unsigned long vaddr) +{ + int ret = 0; + + if (test_bit(UPROBE_COPY_INSN, &uprobe->flags)) + return ret; + + mutex_lock(&uprobe->copy_mutex); + if (test_bit(UPROBE_COPY_INSN, &uprobe->flags)) + goto out; + + ret = copy_insn(uprobe, file); + if (ret) + goto out; + + ret = -ENOTSUPP; + if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn)) + goto out; + + ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, vaddr); + if (ret) + goto out; + + /* write_opcode() assumes we don't cross page boundary */ + BUG_ON((uprobe->offset & ~PAGE_MASK) + + UPROBE_SWBP_INSN_SIZE > PAGE_SIZE); + + smp_wmb(); /* pairs with rmb() in find_active_uprobe() */ + set_bit(UPROBE_COPY_INSN, &uprobe->flags); + + out: + mutex_unlock(&uprobe->copy_mutex); + + return ret; +} + static int install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm, struct vm_area_struct *vma, unsigned long vaddr) @@ -661,24 +631,9 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm, if (!uprobe->consumers) return 0; - if (!(uprobe->flags & UPROBE_COPY_INSN)) { - ret = copy_insn(uprobe, vma->vm_file); - if (ret) - return ret; - - if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn)) - return -ENOTSUPP; - - ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, vaddr); - if (ret) - return ret; - - /* write_opcode() assumes we don't cross page boundary */ - BUG_ON((uprobe->offset & ~PAGE_MASK) + - UPROBE_SWBP_INSN_SIZE > PAGE_SIZE); - - uprobe->flags |= UPROBE_COPY_INSN; - } + ret = prepare_uprobe(uprobe, vma->vm_file, mm, vaddr); + if (ret) + return ret; /* * set MMF_HAS_UPROBES in advance for uprobe_pre_sstep_notifier(), @@ -697,15 +652,15 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm, return ret; } -static void +static int remove_breakpoint(struct uprobe *uprobe, struct mm_struct *mm, unsigned long vaddr) { /* can happen if uprobe_register() fails */ if (!test_bit(MMF_HAS_UPROBES, &mm->flags)) - return; + return 0; set_bit(MMF_RECALC_UPROBES, &mm->flags); - set_orig_insn(&uprobe->arch, mm, vaddr); + return set_orig_insn(&uprobe->arch, mm, vaddr); } /* @@ -820,7 +775,7 @@ static int register_for_each_vma(struct uprobe *uprobe, bool is_register) struct mm_struct *mm = info->mm; struct vm_area_struct *vma; - if (err) + if (err && is_register) goto free; down_write(&mm->mmap_sem); @@ -836,7 +791,7 @@ static int register_for_each_vma(struct uprobe *uprobe, bool is_register) if (is_register) err = install_breakpoint(uprobe, mm, vma, info->vaddr); else - remove_breakpoint(uprobe, mm, info->vaddr); + err |= remove_breakpoint(uprobe, mm, info->vaddr); unlock: up_write(&mm->mmap_sem); @@ -893,13 +848,15 @@ int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer * mutex_lock(uprobes_hash(inode)); uprobe = alloc_uprobe(inode, offset); - if (uprobe && !consumer_add(uprobe, uc)) { + if (!uprobe) { + ret = -ENOMEM; + } else if (!consumer_add(uprobe, uc)) { ret = __uprobe_register(uprobe); if (ret) { uprobe->consumers = NULL; __uprobe_unregister(uprobe); } else { - uprobe->flags |= UPROBE_RUN_HANDLER; + set_bit(UPROBE_RUN_HANDLER, &uprobe->flags); } } @@ -932,7 +889,7 @@ void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consume if (consumer_del(uprobe, uc)) { if (!uprobe->consumers) { __uprobe_unregister(uprobe); - uprobe->flags &= ~UPROBE_RUN_HANDLER; + clear_bit(UPROBE_RUN_HANDLER, &uprobe->flags); } } @@ -1393,10 +1350,11 @@ bool uprobe_deny_signal(void) */ static bool can_skip_sstep(struct uprobe *uprobe, struct pt_regs *regs) { - if (arch_uprobe_skip_sstep(&uprobe->arch, regs)) - return true; - - uprobe->flags &= ~UPROBE_SKIP_SSTEP; + if (test_bit(UPROBE_SKIP_SSTEP, &uprobe->flags)) { + if (arch_uprobe_skip_sstep(&uprobe->arch, regs)) + return true; + clear_bit(UPROBE_SKIP_SSTEP, &uprobe->flags); + } return false; } @@ -1419,6 +1377,30 @@ static void mmf_recalc_uprobes(struct mm_struct *mm) clear_bit(MMF_HAS_UPROBES, &mm->flags); } +static int is_swbp_at_addr(struct mm_struct *mm, unsigned long vaddr) +{ + struct page *page; + uprobe_opcode_t opcode; + int result; + + pagefault_disable(); + result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr, + sizeof(opcode)); + pagefault_enable(); + + if (likely(result == 0)) + goto out; + + result = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &page, NULL); + if (result < 0) + return result; + + copy_opcode(page, vaddr, &opcode); + put_page(page); + out: + return is_swbp_insn(&opcode); +} + static struct uprobe *find_active_uprobe(unsigned long bp_vaddr, int *is_swbp) { struct mm_struct *mm = current->mm; @@ -1489,38 +1471,41 @@ static void handle_swbp(struct pt_regs *regs) } return; } + /* + * TODO: move copy_insn/etc into _register and remove this hack. + * After we hit the bp, _unregister + _register can install the + * new and not-yet-analyzed uprobe at the same address, restart. + */ + smp_rmb(); /* pairs with wmb() in install_breakpoint() */ + if (unlikely(!test_bit(UPROBE_COPY_INSN, &uprobe->flags))) + goto restart; utask = current->utask; if (!utask) { utask = add_utask(); /* Cannot allocate; re-execute the instruction. */ if (!utask) - goto cleanup_ret; + goto restart; } - utask->active_uprobe = uprobe; + handler_chain(uprobe, regs); - if (uprobe->flags & UPROBE_SKIP_SSTEP && can_skip_sstep(uprobe, regs)) - goto cleanup_ret; + if (can_skip_sstep(uprobe, regs)) + goto out; - utask->state = UTASK_SSTEP; if (!pre_ssout(uprobe, regs, bp_vaddr)) { arch_uprobe_enable_step(&uprobe->arch); + utask->active_uprobe = uprobe; + utask->state = UTASK_SSTEP; return; } -cleanup_ret: - if (utask) { - utask->active_uprobe = NULL; - utask->state = UTASK_RUNNING; - } - if (!(uprobe->flags & UPROBE_SKIP_SSTEP)) - - /* - * cannot singlestep; cannot skip instruction; - * re-execute the instruction. - */ - instruction_pointer_set(regs, bp_vaddr); - +restart: + /* + * cannot singlestep; cannot skip instruction; + * re-execute the instruction. + */ + instruction_pointer_set(regs, bp_vaddr); +out: put_uprobe(uprobe); } @@ -1552,13 +1537,12 @@ static void handle_singlestep(struct uprobe_task *utask, struct pt_regs *regs) } /* - * On breakpoint hit, breakpoint notifier sets the TIF_UPROBE flag. (and on - * subsequent probe hits on the thread sets the state to UTASK_BP_HIT) and - * allows the thread to return from interrupt. + * On breakpoint hit, breakpoint notifier sets the TIF_UPROBE flag and + * allows the thread to return from interrupt. After that handle_swbp() + * sets utask->active_uprobe. * - * On singlestep exception, singlestep notifier sets the TIF_UPROBE flag and - * also sets the state to UTASK_SSTEP_ACK and allows the thread to return from - * interrupt. + * On singlestep exception, singlestep notifier sets the TIF_UPROBE flag + * and allows the thread to return from interrupt. * * While returning to userspace, thread notices the TIF_UPROBE flag and calls * uprobe_notify_resume(). @@ -1567,11 +1551,13 @@ void uprobe_notify_resume(struct pt_regs *regs) { struct uprobe_task *utask; + clear_thread_flag(TIF_UPROBE); + utask = current->utask; - if (!utask || utask->state == UTASK_BP_HIT) - handle_swbp(regs); - else + if (utask && utask->active_uprobe) handle_singlestep(utask, regs); + else + handle_swbp(regs); } /* @@ -1580,17 +1566,10 @@ void uprobe_notify_resume(struct pt_regs *regs) */ int uprobe_pre_sstep_notifier(struct pt_regs *regs) { - struct uprobe_task *utask; - if (!current->mm || !test_bit(MMF_HAS_UPROBES, ¤t->mm->flags)) return 0; - utask = current->utask; - if (utask) - utask->state = UTASK_BP_HIT; - set_thread_flag(TIF_UPROBE); - return 1; } diff --git a/kernel/module_signing.c b/kernel/module_signing.c index d492a23df99c..ea1b1df5dbb0 100644 --- a/kernel/module_signing.c +++ b/kernel/module_signing.c @@ -192,7 +192,7 @@ int mod_verify_sig(const void *mod, unsigned long *_modlen) size_t modlen = *_modlen, sig_len; int ret; - pr_devel("==>%s(,%lu)\n", __func__, modlen); + pr_devel("==>%s(,%zu)\n", __func__, modlen); if (modlen <= sizeof(ms)) return -EBADMSG; diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index eb00be205811..7b07cc0dfb75 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -71,12 +71,22 @@ err_alloc: return NULL; } +/* MAX_PID_NS_LEVEL is needed for limiting size of 'struct pid' */ +#define MAX_PID_NS_LEVEL 32 + static struct pid_namespace *create_pid_namespace(struct pid_namespace *parent_pid_ns) { struct pid_namespace *ns; unsigned int level = parent_pid_ns->level + 1; - int i, err = -ENOMEM; + int i; + int err; + + if (level > MAX_PID_NS_LEVEL) { + err = -EINVAL; + goto out; + } + err = -ENOMEM; ns = kmem_cache_zalloc(pid_ns_cachep, GFP_KERNEL); if (ns == NULL) goto out; diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index b32ed0e385a5..b979426d16c6 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1567,6 +1567,10 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size, put_online_cpus(); } else { + /* Make sure this CPU has been intitialized */ + if (!cpumask_test_cpu(cpu_id, buffer->cpumask)) + goto out; + cpu_buffer = buffer->buffers[cpu_id]; if (nr_pages == cpu_buffer->nr_pages) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index d951daa0ca9a..042d221d33cc 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -2982,7 +2982,7 @@ bool cancel_delayed_work(struct delayed_work *dwork) set_work_cpu_and_clear_pending(&dwork->work, work_cpu(&dwork->work)); local_irq_restore(flags); - return true; + return ret; } EXPORT_SYMBOL(cancel_delayed_work); diff --git a/lib/genalloc.c b/lib/genalloc.c index ca208a92628c..54920433705a 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -178,7 +178,7 @@ int gen_pool_add_virt(struct gen_pool *pool, unsigned long virt, phys_addr_t phy struct gen_pool_chunk *chunk; int nbits = size >> pool->min_alloc_order; int nbytes = sizeof(struct gen_pool_chunk) + - (nbits + BITS_PER_BYTE - 1) / BITS_PER_BYTE; + BITS_TO_LONGS(nbits) * sizeof(long); chunk = kmalloc_node(nbytes, GFP_KERNEL | __GFP_ZERO, nid); if (unlikely(chunk == NULL)) diff --git a/mm/memblock.c b/mm/memblock.c index 931eef145af5..625905523c2a 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -930,6 +930,30 @@ int __init_memblock memblock_is_region_reserved(phys_addr_t base, phys_addr_t si return memblock_overlaps_region(&memblock.reserved, base, size) >= 0; } +void __init_memblock memblock_trim_memory(phys_addr_t align) +{ + int i; + phys_addr_t start, end, orig_start, orig_end; + struct memblock_type *mem = &memblock.memory; + + for (i = 0; i < mem->cnt; i++) { + orig_start = mem->regions[i].base; + orig_end = mem->regions[i].base + mem->regions[i].size; + start = round_up(orig_start, align); + end = round_down(orig_end, align); + + if (start == orig_start && end == orig_end) + continue; + + if (start < end) { + mem->regions[i].base = start; + mem->regions[i].size = end - start; + } else { + memblock_remove_region(mem, i); + i--; + } + } +} void __init_memblock memblock_set_current_limit(phys_addr_t limit) { diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c index 479a1e751a73..8a5ac8c686b0 100644 --- a/mm/mmu_notifier.c +++ b/mm/mmu_notifier.c @@ -196,28 +196,28 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn, BUG_ON(atomic_read(&mm->mm_users) <= 0); /* - * Verify that mmu_notifier_init() already run and the global srcu is - * initialized. - */ + * Verify that mmu_notifier_init() already run and the global srcu is + * initialized. + */ BUG_ON(!srcu.per_cpu_ref); + ret = -ENOMEM; + mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm), GFP_KERNEL); + if (unlikely(!mmu_notifier_mm)) + goto out; + if (take_mmap_sem) down_write(&mm->mmap_sem); ret = mm_take_all_locks(mm); if (unlikely(ret)) - goto out; + goto out_clean; if (!mm_has_notifiers(mm)) { - mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm), - GFP_KERNEL); - if (unlikely(!mmu_notifier_mm)) { - ret = -ENOMEM; - goto out_of_mem; - } INIT_HLIST_HEAD(&mmu_notifier_mm->list); spin_lock_init(&mmu_notifier_mm->lock); mm->mmu_notifier_mm = mmu_notifier_mm; + mmu_notifier_mm = NULL; } atomic_inc(&mm->mm_count); @@ -233,12 +233,12 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn, hlist_add_head(&mn->hlist, &mm->mmu_notifier_mm->list); spin_unlock(&mm->mmu_notifier_mm->lock); -out_of_mem: mm_drop_all_locks(mm); -out: +out_clean: if (take_mmap_sem) up_write(&mm->mmap_sem); - + kfree(mmu_notifier_mm); +out: BUG_ON(atomic_read(&mm->mm_users) <= 0); return ret; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bb90971182bd..5b74de6702e0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1809,10 +1809,10 @@ static void __paginginit init_zone_allows_reclaim(int nid) int i; for_each_online_node(i) - if (node_distance(nid, i) <= RECLAIM_DISTANCE) { + if (node_distance(nid, i) <= RECLAIM_DISTANCE) node_set(i, NODE_DATA(nid)->reclaim_nodes); + else zone_reclaim_mode = 1; - } } #else /* CONFIG_NUMA */ @@ -5825,7 +5825,7 @@ int alloc_contig_range(unsigned long start, unsigned long end, ret = start_isolate_page_range(pfn_max_align_down(start), pfn_max_align_up(end), migratetype); if (ret) - goto done; + return ret; ret = __alloc_contig_migrate_range(&cc, start, end); if (ret) diff --git a/mm/rmap.c b/mm/rmap.c index 7df7984d476c..2ee1ef0f317b 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -56,6 +56,7 @@ #include <linux/mmu_notifier.h> #include <linux/migrate.h> #include <linux/hugetlb.h> +#include <linux/backing-dev.h> #include <asm/tlbflush.h> @@ -926,11 +927,8 @@ int page_mkclean(struct page *page) if (page_mapped(page)) { struct address_space *mapping = page_mapping(page); - if (mapping) { + if (mapping) ret = page_mkclean_file(mapping, page); - if (page_test_and_clear_dirty(page_to_pfn(page), 1)) - ret = 1; - } } return ret; @@ -1116,6 +1114,7 @@ void page_add_file_rmap(struct page *page) */ void page_remove_rmap(struct page *page) { + struct address_space *mapping = page_mapping(page); bool anon = PageAnon(page); bool locked; unsigned long flags; @@ -1138,8 +1137,19 @@ void page_remove_rmap(struct page *page) * this if the page is anon, so about to be freed; but perhaps * not if it's in swapcache - there might be another pte slot * containing the swap entry, but page not yet written to swap. + * + * And we can skip it on file pages, so long as the filesystem + * participates in dirty tracking; but need to catch shm and tmpfs + * and ramfs pages which have been modified since creation by read + * fault. + * + * Note that mapping must be decided above, before decrementing + * mapcount (which luckily provides a barrier): once page is unmapped, + * it could be truncated and page->mapping reset to NULL at any moment. + * Note also that we are relying on page_mapping(page) to set mapping + * to &swapper_space when PageSwapCache(page). */ - if ((!anon || PageSwapCache(page)) && + if (mapping && !mapping_cap_account_dirty(mapping) && page_test_and_clear_dirty(page_to_pfn(page), 1)) set_page_dirty(page); /* diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index aaaadfbe36e9..75853cabf4c9 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -254,7 +254,6 @@ struct sock_xprt { void (*old_data_ready)(struct sock *, int); void (*old_state_change)(struct sock *); void (*old_write_space)(struct sock *); - void (*old_error_report)(struct sock *); }; /* @@ -737,10 +736,10 @@ static int xs_tcp_send_request(struct rpc_task *task) dprintk("RPC: sendmsg returned unrecognized error %d\n", -status); case -ECONNRESET: - case -EPIPE: xs_tcp_shutdown(xprt); case -ECONNREFUSED: case -ENOTCONN: + case -EPIPE: clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); } @@ -781,7 +780,6 @@ static void xs_save_old_callbacks(struct sock_xprt *transport, struct sock *sk) transport->old_data_ready = sk->sk_data_ready; transport->old_state_change = sk->sk_state_change; transport->old_write_space = sk->sk_write_space; - transport->old_error_report = sk->sk_error_report; } static void xs_restore_old_callbacks(struct sock_xprt *transport, struct sock *sk) @@ -789,7 +787,6 @@ static void xs_restore_old_callbacks(struct sock_xprt *transport, struct sock *s sk->sk_data_ready = transport->old_data_ready; sk->sk_state_change = transport->old_state_change; sk->sk_write_space = transport->old_write_space; - sk->sk_error_report = transport->old_error_report; } static void xs_reset_transport(struct sock_xprt *transport) @@ -1453,7 +1450,7 @@ static void xs_tcp_cancel_linger_timeout(struct rpc_xprt *xprt) xprt_clear_connecting(xprt); } -static void xs_sock_mark_closed(struct rpc_xprt *xprt) +static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt) { smp_mb__before_clear_bit(); clear_bit(XPRT_CONNECTION_ABORT, &xprt->state); @@ -1461,6 +1458,11 @@ static void xs_sock_mark_closed(struct rpc_xprt *xprt) clear_bit(XPRT_CLOSE_WAIT, &xprt->state); clear_bit(XPRT_CLOSING, &xprt->state); smp_mb__after_clear_bit(); +} + +static void xs_sock_mark_closed(struct rpc_xprt *xprt) +{ + xs_sock_reset_connection_flags(xprt); /* Mark transport as closed and wake up all pending tasks */ xprt_disconnect_done(xprt); } @@ -1516,6 +1518,7 @@ static void xs_tcp_state_change(struct sock *sk) case TCP_CLOSE_WAIT: /* The server initiated a shutdown of the socket */ xprt->connect_cookie++; + clear_bit(XPRT_CONNECTED, &xprt->state); xs_tcp_force_close(xprt); case TCP_CLOSING: /* @@ -1540,25 +1543,6 @@ static void xs_tcp_state_change(struct sock *sk) read_unlock_bh(&sk->sk_callback_lock); } -/** - * xs_error_report - callback mainly for catching socket errors - * @sk: socket - */ -static void xs_error_report(struct sock *sk) -{ - struct rpc_xprt *xprt; - - read_lock_bh(&sk->sk_callback_lock); - if (!(xprt = xprt_from_sock(sk))) - goto out; - dprintk("RPC: %s client %p...\n" - "RPC: error %d\n", - __func__, xprt, sk->sk_err); - xprt_wake_pending_tasks(xprt, -EAGAIN); -out: - read_unlock_bh(&sk->sk_callback_lock); -} - static void xs_write_space(struct sock *sk) { struct socket *sock; @@ -1858,7 +1842,6 @@ static int xs_local_finish_connecting(struct rpc_xprt *xprt, sk->sk_user_data = xprt; sk->sk_data_ready = xs_local_data_ready; sk->sk_write_space = xs_udp_write_space; - sk->sk_error_report = xs_error_report; sk->sk_allocation = GFP_ATOMIC; xprt_clear_connected(xprt); @@ -1983,7 +1966,6 @@ static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) sk->sk_user_data = xprt; sk->sk_data_ready = xs_udp_data_ready; sk->sk_write_space = xs_udp_write_space; - sk->sk_error_report = xs_error_report; sk->sk_no_check = UDP_CSUM_NORCV; sk->sk_allocation = GFP_ATOMIC; @@ -2050,10 +2032,8 @@ static void xs_abort_connection(struct sock_xprt *transport) any.sa_family = AF_UNSPEC; result = kernel_connect(transport->sock, &any, sizeof(any), 0); if (!result) - xs_sock_mark_closed(&transport->xprt); - else - dprintk("RPC: AF_UNSPEC connect return code %d\n", - result); + xs_sock_reset_connection_flags(&transport->xprt); + dprintk("RPC: AF_UNSPEC connect return code %d\n", result); } static void xs_tcp_reuse_connection(struct sock_xprt *transport) @@ -2098,7 +2078,6 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) sk->sk_data_ready = xs_tcp_data_ready; sk->sk_state_change = xs_tcp_state_change; sk->sk_write_space = xs_tcp_write_space; - sk->sk_error_report = xs_error_report; sk->sk_allocation = GFP_ATOMIC; /* socket options */ diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index cf5fd220309b..813200384d97 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -724,6 +724,8 @@ fail: */ static void free_profile(struct aa_profile *profile) { + struct aa_profile *p; + AA_DEBUG("%s(%p)\n", __func__, profile); if (!profile) @@ -751,7 +753,27 @@ static void free_profile(struct aa_profile *profile) aa_put_dfa(profile->xmatch); aa_put_dfa(profile->policy.dfa); - aa_put_profile(profile->replacedby); + /* put the profile reference for replacedby, but not via + * put_profile(kref_put). + * replacedby can form a long chain that can result in cascading + * frees that blows the stack because kref_put makes a nested fn + * call (it looks like recursion, with free_profile calling + * free_profile) for each profile in the chain lp#1056078. + */ + for (p = profile->replacedby; p; ) { + if (atomic_dec_and_test(&p->base.count.refcount)) { + /* no more refs on p, grab its replacedby */ + struct aa_profile *next = p->replacedby; + /* break the chain */ + p->replacedby = NULL; + /* now free p, chain is broken */ + free_profile(p); + + /* follow up with next profile in the chain */ + p = next; + } else + break; + } kzfree(profile); } diff --git a/security/device_cgroup.c b/security/device_cgroup.c index 44dfc415a379..842c254396db 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -42,7 +42,10 @@ struct dev_exception_item { struct dev_cgroup { struct cgroup_subsys_state css; struct list_head exceptions; - bool deny_all; + enum { + DEVCG_DEFAULT_ALLOW, + DEVCG_DEFAULT_DENY, + } behavior; }; static inline struct dev_cgroup *css_to_devcgroup(struct cgroup_subsys_state *s) @@ -182,13 +185,13 @@ static struct cgroup_subsys_state *devcgroup_create(struct cgroup *cgroup) parent_cgroup = cgroup->parent; if (parent_cgroup == NULL) - dev_cgroup->deny_all = false; + dev_cgroup->behavior = DEVCG_DEFAULT_ALLOW; else { parent_dev_cgroup = cgroup_to_devcgroup(parent_cgroup); mutex_lock(&devcgroup_mutex); ret = dev_exceptions_copy(&dev_cgroup->exceptions, &parent_dev_cgroup->exceptions); - dev_cgroup->deny_all = parent_dev_cgroup->deny_all; + dev_cgroup->behavior = parent_dev_cgroup->behavior; mutex_unlock(&devcgroup_mutex); if (ret) { kfree(dev_cgroup); @@ -260,7 +263,7 @@ static int devcgroup_seq_read(struct cgroup *cgroup, struct cftype *cft, * - List the exceptions in case the default policy is to deny * This way, the file remains as a "whitelist of devices" */ - if (devcgroup->deny_all == false) { + if (devcgroup->behavior == DEVCG_DEFAULT_ALLOW) { set_access(acc, ACC_MASK); set_majmin(maj, ~0); set_majmin(min, ~0); @@ -314,12 +317,12 @@ static int may_access(struct dev_cgroup *dev_cgroup, * In two cases we'll consider this new exception valid: * - the dev cgroup has its default policy to allow + exception list: * the new exception should *not* match any of the exceptions - * (!deny_all, !match) + * (behavior == DEVCG_DEFAULT_ALLOW, !match) * - the dev cgroup has its default policy to deny + exception list: * the new exception *should* match the exceptions - * (deny_all, match) + * (behavior == DEVCG_DEFAULT_DENY, match) */ - if (dev_cgroup->deny_all == match) + if ((dev_cgroup->behavior == DEVCG_DEFAULT_DENY) == match) return 1; return 0; } @@ -341,6 +344,17 @@ static int parent_has_perm(struct dev_cgroup *childcg, return may_access(parent, ex); } +/** + * may_allow_all - checks if it's possible to change the behavior to + * allow based on parent's rules. + * @parent: device cgroup's parent + * returns: != 0 in case it's allowed, 0 otherwise + */ +static inline int may_allow_all(struct dev_cgroup *parent) +{ + return parent->behavior == DEVCG_DEFAULT_ALLOW; +} + /* * Modify the exception list using allow/deny rules. * CAP_SYS_ADMIN is needed for this. It's at least separate from CAP_MKNOD @@ -358,9 +372,11 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, int filetype, const char *buffer) { const char *b; - char *endp; - int count; + char temp[12]; /* 11 + 1 characters needed for a u32 */ + int count, rc; struct dev_exception_item ex; + struct cgroup *p = devcgroup->css.cgroup; + struct dev_cgroup *parent = cgroup_to_devcgroup(p->parent); if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -372,14 +388,18 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, case 'a': switch (filetype) { case DEVCG_ALLOW: - if (!parent_has_perm(devcgroup, &ex)) + if (!may_allow_all(parent)) return -EPERM; dev_exception_clean(devcgroup); - devcgroup->deny_all = false; + rc = dev_exceptions_copy(&devcgroup->exceptions, + &parent->exceptions); + if (rc) + return rc; + devcgroup->behavior = DEVCG_DEFAULT_ALLOW; break; case DEVCG_DENY: dev_exception_clean(devcgroup); - devcgroup->deny_all = true; + devcgroup->behavior = DEVCG_DEFAULT_DENY; break; default: return -EINVAL; @@ -402,8 +422,16 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, ex.major = ~0; b++; } else if (isdigit(*b)) { - ex.major = simple_strtoul(b, &endp, 10); - b = endp; + memset(temp, 0, sizeof(temp)); + for (count = 0; count < sizeof(temp) - 1; count++) { + temp[count] = *b; + b++; + if (!isdigit(*b)) + break; + } + rc = kstrtou32(temp, 10, &ex.major); + if (rc) + return -EINVAL; } else { return -EINVAL; } @@ -416,8 +444,16 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, ex.minor = ~0; b++; } else if (isdigit(*b)) { - ex.minor = simple_strtoul(b, &endp, 10); - b = endp; + memset(temp, 0, sizeof(temp)); + for (count = 0; count < sizeof(temp) - 1; count++) { + temp[count] = *b; + b++; + if (!isdigit(*b)) + break; + } + rc = kstrtou32(temp, 10, &ex.minor); + if (rc) + return -EINVAL; } else { return -EINVAL; } @@ -452,7 +488,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, * an matching exception instead. And be silent about it: we * don't want to break compatibility */ - if (devcgroup->deny_all == false) { + if (devcgroup->behavior == DEVCG_DEFAULT_ALLOW) { dev_exception_rm(devcgroup, &ex); return 0; } @@ -463,7 +499,7 @@ static int devcgroup_update_access(struct dev_cgroup *devcgroup, * an matching exception instead. And be silent about it: we * don't want to break compatibility */ - if (devcgroup->deny_all == true) { + if (devcgroup->behavior == DEVCG_DEFAULT_DENY) { dev_exception_rm(devcgroup, &ex); return 0; } @@ -533,10 +569,10 @@ struct cgroup_subsys devices_subsys = { * * returns 0 on success, -EPERM case the operation is not permitted */ -static int __devcgroup_check_permission(struct dev_cgroup *dev_cgroup, - short type, u32 major, u32 minor, +static int __devcgroup_check_permission(short type, u32 major, u32 minor, short access) { + struct dev_cgroup *dev_cgroup; struct dev_exception_item ex; int rc; @@ -547,6 +583,7 @@ static int __devcgroup_check_permission(struct dev_cgroup *dev_cgroup, ex.access = access; rcu_read_lock(); + dev_cgroup = task_devcgroup(current); rc = may_access(dev_cgroup, &ex); rcu_read_unlock(); @@ -558,7 +595,6 @@ static int __devcgroup_check_permission(struct dev_cgroup *dev_cgroup, int __devcgroup_inode_permission(struct inode *inode, int mask) { - struct dev_cgroup *dev_cgroup = task_devcgroup(current); short type, access = 0; if (S_ISBLK(inode->i_mode)) @@ -570,13 +606,12 @@ int __devcgroup_inode_permission(struct inode *inode, int mask) if (mask & MAY_READ) access |= ACC_READ; - return __devcgroup_check_permission(dev_cgroup, type, imajor(inode), - iminor(inode), access); + return __devcgroup_check_permission(type, imajor(inode), iminor(inode), + access); } int devcgroup_inode_mknod(int mode, dev_t dev) { - struct dev_cgroup *dev_cgroup = task_devcgroup(current); short type; if (!S_ISBLK(mode) && !S_ISCHR(mode)) @@ -587,7 +622,7 @@ int devcgroup_inode_mknod(int mode, dev_t dev) else type = DEV_CHAR; - return __devcgroup_check_permission(dev_cgroup, type, MAJOR(dev), - MINOR(dev), ACC_MKNOD); + return __devcgroup_check_permission(type, MAJOR(dev), MINOR(dev), + ACC_MKNOD); } diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c index 411ee5664e98..178b88ae3d2f 100644 --- a/tools/perf/builtin-help.c +++ b/tools/perf/builtin-help.c @@ -414,7 +414,7 @@ static int show_html_page(const char *perf_cmd) int cmd_help(int argc, const char **argv, const char *prefix __maybe_unused) { bool show_all = false; - enum help_format help_format = HELP_FORMAT_NONE; + enum help_format help_format = HELP_FORMAT_MAN; struct option builtin_help_options[] = { OPT_BOOLEAN('a', "all", &show_all, "print all available commands"), OPT_SET_UINT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN), diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index dec8ced61fb0..7aaee39f6774 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -56,6 +56,10 @@ static int trace__read_syscall_info(struct trace *trace, int id) { char tp_name[128]; struct syscall *sc; + const char *name = audit_syscall_to_name(id, trace->audit_machine); + + if (name == NULL) + return -1; if (id > trace->syscalls.max) { struct syscall *nsyscalls = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); @@ -75,11 +79,8 @@ static int trace__read_syscall_info(struct trace *trace, int id) } sc = trace->syscalls.table + id; - sc->name = audit_syscall_to_name(id, trace->audit_machine); - if (sc->name == NULL) - return -1; - - sc->fmt = syscall_fmt__find(sc->name); + sc->name = name; + sc->fmt = syscall_fmt__find(sc->name); snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); sc->tp_format = event_format__new("syscalls", tp_name); @@ -267,6 +268,13 @@ again: if (evlist->threads->map[0] == -1 || evlist->threads->nr > 1) printf("%d ", sample.tid); + if (sample.raw_data == NULL) { + printf("%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", + perf_evsel__name(evsel), sample.tid, + sample.cpu, sample.raw_size); + continue; + } + handler = evsel->handler.func; handler(trace, evsel, &sample); } diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c index 28c18d1d52c3..516ecd9ddd6e 100644 --- a/tools/perf/util/parse-events-test.c +++ b/tools/perf/util/parse-events-test.c @@ -513,7 +513,8 @@ static int test__group1(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong exclude_user", !evsel->attr.exclude_user); TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel); TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); - TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest); + /* use of precise requires exclude_guest */ + TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest); TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip == 2); TEST_ASSERT_VAL("wrong leader", evsel->leader == leader); @@ -599,7 +600,8 @@ static int test__group3(struct perf_evlist *evlist __maybe_unused) TEST_ASSERT_VAL("wrong exclude_user", evsel->attr.exclude_user); TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->attr.exclude_kernel); TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); - TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest); + /* use of precise requires exclude_guest */ + TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest); TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip == 3); TEST_ASSERT_VAL("wrong leader", evsel->leader == leader); @@ -662,7 +664,8 @@ static int test__group4(struct perf_evlist *evlist __maybe_unused) TEST_ASSERT_VAL("wrong exclude_user", !evsel->attr.exclude_user); TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel); TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); - TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest); + /* use of precise requires exclude_guest */ + TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest); TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip == 1); TEST_ASSERT_VAL("wrong group name", !evsel->group_name); @@ -676,7 +679,8 @@ static int test__group4(struct perf_evlist *evlist __maybe_unused) TEST_ASSERT_VAL("wrong exclude_user", evsel->attr.exclude_user); TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->attr.exclude_kernel); TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); - TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest); + /* use of precise requires exclude_guest */ + TEST_ASSERT_VAL("wrong exclude guest", evsel->attr.exclude_guest); TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip == 2); TEST_ASSERT_VAL("wrong leader", evsel->leader == leader); diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index fb4b7ea6752f..8b3e5939afb6 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -39,7 +39,6 @@ int thread__set_comm(struct thread *self, const char *comm) err = self->comm == NULL ? -ENOMEM : 0; if (!err) { self->comm_set = true; - map_groups__flush(&self->mg); } return err; } diff --git a/tools/testing/selftests/epoll/test_epoll.c b/tools/testing/selftests/epoll/test_epoll.c index e0fcff1e8331..f7525392ce84 100644 --- a/tools/testing/selftests/epoll/test_epoll.c +++ b/tools/testing/selftests/epoll/test_epoll.c @@ -162,14 +162,14 @@ void *write_thread_function(void *function_data) int index; struct write_thread_data *thread_data = (struct write_thread_data *)function_data; - while (!write_thread_data->stop) + while (!thread_data->stop) for (index = 0; !thread_data->stop && (index < thread_data->n_fds); ++index) if ((write(thread_data->fds[index], &data, 1) < 1) && (errno != EAGAIN) && (errno != EWOULDBLOCK)) { - write_thread_data->status = errno; + thread_data->status = errno; return; } } diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index cd1b03e80899..b76edf2f8333 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -35,7 +35,7 @@ #include <sys/mount.h> #include <sys/statfs.h> #include "../../include/uapi/linux/magic.h" -#include "../../include/linux/kernel-page-flags.h" +#include "../../include/uapi/linux/kernel-page-flags.h" #ifndef MAX_PATH diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c index af0f22fb1ef7..aca6edcbbc6f 100644 --- a/usr/gen_init_cpio.c +++ b/usr/gen_init_cpio.c @@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, const char *location, int retval; int rc = -1; int namesize; - int i; + unsigned int i; mode |= S_IFREG; @@ -381,25 +381,28 @@ error: static char *cpio_replace_env(char *new_location) { - char expanded[PATH_MAX + 1]; - char env_var[PATH_MAX + 1]; - char *start; - char *end; - - for (start = NULL; (start = strstr(new_location, "${")); ) { - end = strchr(start, '}'); - if (start < end) { - *env_var = *expanded = '\0'; - strncat(env_var, start + 2, end - start - 2); - strncat(expanded, new_location, start - new_location); - strncat(expanded, getenv(env_var), PATH_MAX); - strncat(expanded, end + 1, PATH_MAX); - strncpy(new_location, expanded, PATH_MAX); - } else - break; - } - - return new_location; + char expanded[PATH_MAX + 1]; + char env_var[PATH_MAX + 1]; + char *start; + char *end; + + for (start = NULL; (start = strstr(new_location, "${")); ) { + end = strchr(start, '}'); + if (start < end) { + *env_var = *expanded = '\0'; + strncat(env_var, start + 2, end - start - 2); + strncat(expanded, new_location, start - new_location); + strncat(expanded, getenv(env_var), + PATH_MAX - strlen(expanded)); + strncat(expanded, end + 1, + PATH_MAX - strlen(expanded)); + strncpy(new_location, expanded, PATH_MAX); + new_location[PATH_MAX] = 0; + } else + break; + } + + return new_location; } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index e59bb63cb089..be70035fd42a 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1322,9 +1322,7 @@ EXPORT_SYMBOL_GPL(kvm_release_page_clean); void kvm_release_pfn_clean(pfn_t pfn) { - WARN_ON(is_error_pfn(pfn)); - - if (!kvm_is_mmio_pfn(pfn)) + if (!is_error_pfn(pfn) && !kvm_is_mmio_pfn(pfn)) put_page(pfn_to_page(pfn)); } EXPORT_SYMBOL_GPL(kvm_release_pfn_clean); |