diff options
| author | Alastair D'Silva <alastair@d-silva.org> | 2019-11-04 05:32:55 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-11-07 14:48:34 +0300 |
| commit | 7a0745c5e03ff1129864bc6d80f5c4417e8d7893 (patch) | |
| tree | 9c55e9ade85db37bf758208d8a4c6cd5393c12d6 | |
| parent | f9ec11165301982585e5e5f606739b5bae5331f3 (diff) | |
| download | linux-7a0745c5e03ff1129864bc6d80f5c4417e8d7893.tar.xz | |
powerpc: define helpers to get L1 icache sizes
This patch adds helpers to retrieve icache sizes, and renames the existing
helpers to make it clear that they are for dcache.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191104023305.9581-4-alastair@au1.ibm.com
| -rw-r--r-- | arch/powerpc/include/asm/cache.h | 29 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/cacheflush.h | 12 |
2 files changed, 31 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h index 45e3137ccd71..afb88754e0e0 100644 --- a/arch/powerpc/include/asm/cache.h +++ b/arch/powerpc/include/asm/cache.h @@ -55,25 +55,46 @@ struct ppc64_caches { extern struct ppc64_caches ppc64_caches; -static inline u32 l1_cache_shift(void) +static inline u32 l1_dcache_shift(void) { return ppc64_caches.l1d.log_block_size; } -static inline u32 l1_cache_bytes(void) +static inline u32 l1_dcache_bytes(void) { return ppc64_caches.l1d.block_size; } + +static inline u32 l1_icache_shift(void) +{ + return ppc64_caches.l1i.log_block_size; +} + +static inline u32 l1_icache_bytes(void) +{ + return ppc64_caches.l1i.block_size; +} #else -static inline u32 l1_cache_shift(void) +static inline u32 l1_dcache_shift(void) { return L1_CACHE_SHIFT; } -static inline u32 l1_cache_bytes(void) +static inline u32 l1_dcache_bytes(void) { return L1_CACHE_BYTES; } + +static inline u32 l1_icache_shift(void) +{ + return L1_CACHE_SHIFT; +} + +static inline u32 l1_icache_bytes(void) +{ + return L1_CACHE_BYTES; +} + #endif #endif /* ! __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h index eef388f2659f..ed57843ef452 100644 --- a/arch/powerpc/include/asm/cacheflush.h +++ b/arch/powerpc/include/asm/cacheflush.h @@ -63,8 +63,8 @@ static inline void __flush_dcache_icache_phys(unsigned long physaddr) */ static inline void flush_dcache_range(unsigned long start, unsigned long stop) { - unsigned long shift = l1_cache_shift(); - unsigned long bytes = l1_cache_bytes(); + unsigned long shift = l1_dcache_shift(); + unsigned long bytes = l1_dcache_bytes(); void *addr = (void *)(start & ~(bytes - 1)); unsigned long size = stop - (unsigned long)addr + (bytes - 1); unsigned long i; @@ -89,8 +89,8 @@ static inline void flush_dcache_range(unsigned long start, unsigned long stop) */ static inline void clean_dcache_range(unsigned long start, unsigned long stop) { - unsigned long shift = l1_cache_shift(); - unsigned long bytes = l1_cache_bytes(); + unsigned long shift = l1_dcache_shift(); + unsigned long bytes = l1_dcache_bytes(); void *addr = (void *)(start & ~(bytes - 1)); unsigned long size = stop - (unsigned long)addr + (bytes - 1); unsigned long i; @@ -108,8 +108,8 @@ static inline void clean_dcache_range(unsigned long start, unsigned long stop) static inline void invalidate_dcache_range(unsigned long start, unsigned long stop) { - unsigned long shift = l1_cache_shift(); - unsigned long bytes = l1_cache_bytes(); + unsigned long shift = l1_dcache_shift(); + unsigned long bytes = l1_dcache_bytes(); void *addr = (void *)(start & ~(bytes - 1)); unsigned long size = stop - (unsigned long)addr + (bytes - 1); unsigned long i; |