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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-12-14 20:44:51 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-12-16 05:53:34 +0100 |
| commit | f63837f0581fe580168ae1a7d178ded935411747 (patch) | |
| tree | ea4956ae770193ad2d18f5be599df44014419577 /arch/powerpc/mm/mmu_decl.h | |
| parent | powerpc/mm: Rename tlb_32.c and tlb_64.c to tlb_hash32.c and tlb_hash64.c (diff) | |
| download | linux-f63837f0581fe580168ae1a7d178ded935411747.tar.xz linux-f63837f0581fe580168ae1a7d178ded935411747.zip | |
powerpc/mm: Remove flush_HPTE()
The function flush_HPTE() is used in only one place, the implementation
of DEBUG_PAGEALLOC on ppc32.
It's actually a dup of flush_tlb_page() though it's -slightly- more
efficient on hash based processors. We remove it and replace it by
a direct call to the hash flush code on those processors and to
flush_tlb_page() for everybody else.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/mmu_decl.h')
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index fab3cfad4099..b4344fd30f2a 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -58,17 +58,14 @@ extern phys_addr_t lowmem_end_addr; * architectures. -- Dan */ #if defined(CONFIG_8xx) -#define flush_HPTE(X, va, pg) _tlbie(va, 0 /* 8xx doesn't care about PID */) #define MMU_init_hw() do { } while(0) #define mmu_mapin_ram() (0UL) #elif defined(CONFIG_4xx) -#define flush_HPTE(pid, va, pg) _tlbie(va, pid) extern void MMU_init_hw(void); extern unsigned long mmu_mapin_ram(void); #elif defined(CONFIG_FSL_BOOKE) -#define flush_HPTE(pid, va, pg) _tlbie(va, pid) extern void MMU_init_hw(void); extern unsigned long mmu_mapin_ram(void); extern void adjust_total_lowmem(void); @@ -77,18 +74,4 @@ extern void adjust_total_lowmem(void); /* anything 32-bit except 4xx or 8xx */ extern void MMU_init_hw(void); extern unsigned long mmu_mapin_ram(void); - -/* Be careful....this needs to be updated if we ever encounter 603 SMPs, - * which includes all new 82xx processors. We need tlbie/tlbsync here - * in that case (I think). -- Dan. - */ -static inline void flush_HPTE(unsigned context, unsigned long va, - unsigned long pdval) -{ - if ((Hash != 0) && - cpu_has_feature(CPU_FTR_HPTE_TABLE)) - flush_hash_pages(0, va, pdval, 1); - else - _tlbie(va); -} #endif |