diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-07 14:54:07 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-07 14:54:07 -0700 |
commit | ff09e2afe742f3ff52a0c9a660e8a3fe30cf587c (patch) | |
tree | aff06e82c7d653d0b15c1f3cae7f0c8a90ba3d14 | |
parent | ad3c7e42e33a842cf3b518e21a7f69e167649d8a (diff) | |
parent | 9c5a3d729cf430609d091ff610a7db363aafcd47 (diff) |
Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstream-linus
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstream-linus:
[MIPS] Handle aliases in vmalloc correctly.
-rw-r--r-- | arch/mips/mm/c-r4k.c | 14 | ||||
-rw-r--r-- | arch/mips/mm/c-tx39.c | 15 | ||||
-rw-r--r-- | arch/mips/mm/cache.c | 3 | ||||
-rw-r--r-- | include/asm-mips/cacheflush.h | 18 |
4 files changed, 48 insertions, 2 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 6496925b5e2..77aefb4ebed 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -361,6 +361,16 @@ static inline int has_valid_asid(const struct mm_struct *mm) #endif } +static void r4k__flush_cache_vmap(void) +{ + r4k_blast_dcache(); +} + +static void r4k__flush_cache_vunmap(void) +{ + r4k_blast_dcache(); +} + static inline void local_r4k_flush_cache_range(void * args) { struct vm_area_struct *vma = args; @@ -1281,6 +1291,10 @@ void __cpuinit r4k_cache_init(void) PAGE_SIZE - 1); else shm_align_mask = PAGE_SIZE-1; + + __flush_cache_vmap = r4k__flush_cache_vmap; + __flush_cache_vunmap = r4k__flush_cache_vunmap; + flush_cache_all = cache_noop; __flush_cache_all = r4k___flush_cache_all; flush_cache_mm = r4k_flush_cache_mm; diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index b09d56981d5..a9f7f1f5e9b 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c @@ -122,6 +122,16 @@ static inline void tx39_blast_icache(void) local_irq_restore(flags); } +static void tx39__flush_cache_vmap(void) +{ + tx39_blast_dcache(); +} + +static void tx39__flush_cache_vunmap(void) +{ + tx39_blast_dcache(); +} + static inline void tx39_flush_cache_all(void) { if (!cpu_has_dc_aliases) @@ -344,6 +354,8 @@ void __cpuinit tx39_cache_init(void) switch (current_cpu_type()) { case CPU_TX3912: /* TX39/H core (writethru direct-map cache) */ + __flush_cache_vmap = tx39__flush_cache_vmap; + __flush_cache_vunmap = tx39__flush_cache_vunmap; flush_cache_all = tx39h_flush_icache_all; __flush_cache_all = tx39h_flush_icache_all; flush_cache_mm = (void *) tx39h_flush_icache_all; @@ -369,6 +381,9 @@ void __cpuinit tx39_cache_init(void) write_c0_wired(0); /* set 8 on reset... */ /* board-dependent init code may set WBON */ + __flush_cache_vmap = tx39__flush_cache_vmap; + __flush_cache_vunmap = tx39__flush_cache_vunmap; + flush_cache_all = tx39_flush_cache_all; __flush_cache_all = tx39___flush_cache_all; flush_cache_mm = tx39_flush_cache_mm; diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index 51ab1faa027..f5903679ee6 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -30,6 +30,9 @@ void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); void (*flush_icache_range)(unsigned long start, unsigned long end); +void (*__flush_cache_vmap)(void); +void (*__flush_cache_vunmap)(void); + /* MIPS specific cache operations */ void (*flush_cache_sigtramp)(unsigned long addr); void (*local_flush_data_cache_page)(void * addr); diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h index 01e7eadc97e..d5c0f2fda51 100644 --- a/include/asm-mips/cacheflush.h +++ b/include/asm-mips/cacheflush.h @@ -63,8 +63,22 @@ static inline void flush_icache_page(struct vm_area_struct *vma, } extern void (*flush_icache_range)(unsigned long start, unsigned long end); -#define flush_cache_vmap(start, end) flush_cache_all() -#define flush_cache_vunmap(start, end) flush_cache_all() + +extern void (*__flush_cache_vmap)(void); + +static inline void flush_cache_vmap(unsigned long start, unsigned long end) +{ + if (cpu_has_dc_aliases) + __flush_cache_vmap(); +} + +extern void (*__flush_cache_vunmap)(void); + +static inline void flush_cache_vunmap(unsigned long start, unsigned long end) +{ + if (cpu_has_dc_aliases) + __flush_cache_vunmap(); +} extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, |