diff options
| author | Paul Burton <paul.burton@mips.com> | 2019-08-31 15:41:59 +0000 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2019-09-03 14:21:04 +0100 |
| commit | 3d77a95fc03b8d811ec96b76d7874713192c725a (patch) | |
| tree | aef76275965a8956683a24bd1590613b2bf15116 /arch/mips | |
| parent | 775b089aeffa98d5f69045d9dc4fe3aaba1bc9e1 (diff) | |
| download | linux-3d77a95fc03b8d811ec96b76d7874713192c725a.tar.bz2 | |
MIPS: Drop Loongson _CACHE_* definitions
_CACHE_CACHABLE_NONCOHERENT is defined as 3<<_CACHE_SHIFT by default, so
there's no need to define it as such specifically for Loongson.
_CACHE_CACHABLE_COHERENT is not used anywhere in the kernel, so there's
no need to define it at all.
Finally the comment found alongside these definitions seems incorrect -
it suggests that we're defining _CACHE_CACHABLE_NONCOHERENT such that it
actually provides coherence, but the opposite seems to be true & instead
the unused _CACHE_CACHABLE_COHERENT is defined as the typically
incoherent value.
Delete the whole thing, which will have no effect on the compiled code
anyway.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: linux-mips@vger.kernel.org
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/pgtable-bits.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h index 5f1ced8cba07..409ae01ed7be 100644 --- a/arch/mips/include/asm/pgtable-bits.h +++ b/arch/mips/include/asm/pgtable-bits.h @@ -221,13 +221,6 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val) #define _CACHE_CACHABLE_NONCOHERENT (5<<_CACHE_SHIFT) -#elif defined(CONFIG_CPU_LOONGSON3) - -/* Using COHERENT flag for NONCOHERENT doesn't hurt. */ - -#define _CACHE_CACHABLE_NONCOHERENT (3<<_CACHE_SHIFT) /* LOONGSON */ -#define _CACHE_CACHABLE_COHERENT (3<<_CACHE_SHIFT) /* LOONGSON-3 */ - #elif defined(CONFIG_MACH_INGENIC) /* Ingenic uses the WA bit to achieve write-combine memory writes */ |