diff options
author | Amit Pundir <amit.pundir@linaro.org> | 2018-12-11 00:07:21 +0530 |
---|---|---|
committer | Amit Pundir <amit.pundir@linaro.org> | 2018-12-11 00:07:21 +0530 |
commit | 770f7163da89a92625f78c374e0c9cd82f78d190 (patch) | |
tree | f52e92f8ed6dcd4b01e0e77e71b3ab24d2afd250 /arch/arm64/include | |
parent | 93ca8345070ef87e32a98ed799c473e68595c237 (diff) | |
parent | 684d5e05df8cdc18791e76b11f6bc85ecd4d9416 (diff) |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
* linux-linaro-lsk-v4.4: (622 commits)
Linux 4.4.166
drm/ast: Remove existing framebuffers before loading driver
s390/mm: Check for valid vma before zapping in gmap_discard
namei: allow restricted O_CREAT of FIFOs and regular files
sched/core: Allow __sched_setscheduler() in interrupts when PI is not used
btrfs: Ensure btrfs_trim_fs can trim the whole filesystem
usb: xhci: fix uninitialized completion when USB3 port got wrong status
tty: wipe buffer if not echoing data
tty: wipe buffer.
iwlwifi: mvm: fix regulatory domain update when the firmware starts
scsi: qla2xxx: do not queue commands when unloading
scsi: ufshcd: release resources if probe fails
scsi: ufs: fix race between clock gating and devfreq scaling work
scsi: ufshcd: Fix race between clk scaling and ungate work
scsi: ufs: fix bugs related to null pointer access and array size
netfilter: nf_tables: fix oops when inserting an element into a verdict map
mwifiex: fix p2p device doesn't find in scan problem
mwifiex: Fix NULL pointer dereference in skb_dequeue()
cw1200: Don't leak memory if krealloc failes
Input: xpad - add support for Xbox1 PDP Camo series gamepad
...
Conflicts:
Makefile
arch/x86/Makefile
drivers/base/power/main.c
drivers/block/zram/zram_drv.c
kernel/debug/kdb/kdb_io.c
net/ipv6/route.c
scripts/Kbuild.include
Conflicts in above files are fixed as done in AOSP Change-Id:
I5bd20327e0c1139c46f74e8d5916fa0530a307d3 ("Merge 4.4.165 into android-4.4").
arch/arm64/include/asm/cpufeature.h
arch/arm64/kernel/cpufeature.c
Conflicts in above files is due to AOSP Change-Id:
I11cb874d12a7d0921f452c62b0752e0028a8e0a7 ("FROMLIST: arm64: entry: Add
fake CPU feature for unmapping the kernel at EL0"), which needed a minor
rebasing.
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'arch/arm64/include')
-rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 6 | ||||
-rw-r--r-- | arch/arm64/include/asm/jump_label.h | 4 | ||||
-rw-r--r-- | arch/arm64/include/asm/kvm_emulate.h | 5 | ||||
-rw-r--r-- | arch/arm64/include/asm/percpu.h | 3 | ||||
-rw-r--r-- | arch/arm64/include/asm/sysreg.h | 1 |
5 files changed, 17 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 4980a9789e1b..87b9d9afc5fc 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -36,6 +36,7 @@ #define ARM64_WORKAROUND_CAVIUM_27456 11 #define ARM64_HAS_VIRT_HOST_EXTN 12 +#define ARM64_HAS_32BIT_EL0 13 #define ARM64_UNMAP_KERNEL_AT_EL0 23 #define ARM64_NCAPS 24 @@ -185,6 +186,11 @@ static inline bool cpu_supports_mixed_endian_el0(void) return id_aa64mmfr0_mixed_endian_el0(read_cpuid(SYS_ID_AA64MMFR0_EL1)); } +static inline bool system_supports_32bit_el0(void) +{ + return cpus_have_cap(ARM64_HAS_32BIT_EL0); +} + static inline bool system_supports_mixed_endian_el0(void) { return id_aa64mmfr0_mixed_endian_el0(read_system_reg(SYS_ID_AA64MMFR0_EL1)); diff --git a/arch/arm64/include/asm/jump_label.h b/arch/arm64/include/asm/jump_label.h index 1b5e0e843c3a..7e2b3e360086 100644 --- a/arch/arm64/include/asm/jump_label.h +++ b/arch/arm64/include/asm/jump_label.h @@ -28,7 +28,7 @@ static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { - asm goto("1: nop\n\t" + asm_volatile_goto("1: nop\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".align 3\n\t" ".quad 1b, %l[l_yes], %c0\n\t" @@ -42,7 +42,7 @@ l_yes: static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) { - asm goto("1: b %l[l_yes]\n\t" + asm_volatile_goto("1: b %l[l_yes]\n\t" ".pushsection __jump_table, \"aw\"\n\t" ".align 3\n\t" ".quad 1b, %l[l_yes], %c0\n\t" diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 3066328cd86b..9917b55148d8 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -40,6 +40,11 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu); void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr); void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr); +static inline bool vcpu_el1_is_32bit(struct kvm_vcpu *vcpu) +{ + return !(vcpu->arch.hcr_el2 & HCR_RW); +} + static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu) { vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS; diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h index 2ce1a0262a59..b8beb45b8a20 100644 --- a/arch/arm64/include/asm/percpu.h +++ b/arch/arm64/include/asm/percpu.h @@ -86,6 +86,7 @@ static inline unsigned long __percpu_##op(void *ptr, \ : [val] "Ir" (val)); \ break; \ default: \ + ret = 0; \ BUILD_BUG(); \ } \ \ @@ -115,6 +116,7 @@ static inline unsigned long __percpu_read(void *ptr, int size) ret = ACCESS_ONCE(*(u64 *)ptr); break; default: + ret = 0; BUILD_BUG(); } @@ -184,6 +186,7 @@ static inline unsigned long __percpu_xchg(void *ptr, unsigned long val, : [val] "r" (val)); break; default: + ret = 0; BUILD_BUG(); } diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 0961a24e8d48..d620a13fc97e 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -126,6 +126,7 @@ #define ID_AA64PFR0_ASIMD_SUPPORTED 0x0 #define ID_AA64PFR0_EL1_64BIT_ONLY 0x1 #define ID_AA64PFR0_EL0_64BIT_ONLY 0x1 +#define ID_AA64PFR0_EL0_32BIT_64BIT 0x2 /* id_aa64mmfr0 */ #define ID_AA64MMFR0_TGRAN4_SHIFT 28 |