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authorMichael Ellerman <mpe@ellerman.id.au>2016-08-04 15:32:06 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2016-08-04 20:22:34 +1000
commiteea8148c69f3aecbf297b12943a591467a1fb432 (patch)
treee965347d6008f53dc8b14ebf136e95170cf03dda /arch/powerpc
parent1a058f164348a71229afd35bb5bbbb0fb514555d (diff)
powerpc/mm: Move register_process_table() out of ppc_md
We want to initialise register_process_table() before ppc_md is setup, so that it can be called as part of MMU init (at least on Radix ATM). That no longer works because probe_machine() requires that ppc_md be empty before it's called, and we now do probe_machine() much later. So make register_process_table a global for now. It will probably move into a mmu_radix_ops struct at some point in the future. This was broken by me when applying commit 7025776ed1eb "powerpc/mm: Move hash table ops to a separate structure" due to conflicts with other patches. Fixes: 7025776ed1eb ("powerpc/mm: Move hash table ops to a separate structure") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/book3s/64/mmu.h4
-rw-r--r--arch/powerpc/include/asm/machdep.h2
-rw-r--r--arch/powerpc/mm/hash_native_64.c2
-rw-r--r--arch/powerpc/mm/pgtable-book3s64.c3
-rw-r--r--arch/powerpc/mm/pgtable-radix.c4
5 files changed, 10 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index 0cbde6a6750b..8afb0e00f7d9 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -134,5 +134,9 @@ static inline void setup_initial_memory_limit(phys_addr_t first_memblock_base,
return hash__setup_initial_memory_limit(first_memblock_base,
first_memblock_size);
}
+
+extern int (*register_process_table)(unsigned long base, unsigned long page_size,
+ unsigned long tbl_size);
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_MMU_H_ */
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 76f5398e7152..0420b388dd83 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -219,8 +219,6 @@ struct machdep_calls {
#ifdef CONFIG_ARCH_RANDOM
int (*get_random_seed)(unsigned long *v);
#endif
- int (*register_process_table)(unsigned long base, unsigned long page_size,
- unsigned long tbl_size);
};
extern void e500_idle(void);
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index d2d8efd79cbf..0e4e9654bd2c 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -747,5 +747,5 @@ void __init hpte_init_native(void)
mmu_hash_ops.hugepage_invalidate = native_hugepage_invalidate;
if (cpu_has_feature(CPU_FTR_ARCH_300))
- ppc_md.register_process_table = native_register_proc_table;
+ register_process_table = native_register_proc_table;
}
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 7bb8acffe876..34079302cc17 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -14,6 +14,9 @@
#include "mmu_decl.h"
#include <trace/events/thp.h>
+int (*register_process_table)(unsigned long base, unsigned long page_size,
+ unsigned long tbl_size);
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/*
* This is called when relaxing access to a hugepage. It's also called in the page
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index f34ccdbe0fbd..af897d91d09f 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -171,7 +171,7 @@ redo:
* of process table here. But our linear mapping also enable us to use
* physical address here.
*/
- ppc_md.register_process_table(__pa(process_tb), 0, PRTB_SIZE_SHIFT - 12);
+ register_process_table(__pa(process_tb), 0, PRTB_SIZE_SHIFT - 12);
pr_info("Process table %p and radix root for kernel: %p\n", process_tb, init_mm.pgd);
}
@@ -198,7 +198,7 @@ static void __init radix_init_partition_table(void)
void __init radix_init_native(void)
{
- ppc_md.register_process_table = native_register_process_table;
+ register_process_table = native_register_process_table;
}
static int __init get_idx_from_shift(unsigned int shift)