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powerpc: define helpers to get L1 icache sizes

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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
This commit is contained in:
Alastair D'Silva
2019-11-04 13:32:55 +11:00
committed by Michael Ellerman
parent f9ec111653
commit 7a0745c5e0
2 changed files with 31 additions and 10 deletions
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29
arch/powerpc/include/asm/cache.h
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@@ -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__ */