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| author | Paul Burton | 2018-10-15 20:33:22 +0200 |
|---|---|---|
| committer | Paul Burton | 2018-10-16 08:11:14 +0200 |
| commit | 1d6fb222bd23696a25b9b256a3e076b9c60677b8 (patch) | |
| tree | 51574e2a0aa53407d2b7b77b5259261688e669a7 /arch/mips/lib | |
| parent | MIPS: Remove unused CAT macro (diff) | |
| download | kernel-qcow2-linux-1d6fb222bd23696a25b9b256a3e076b9c60677b8.tar.gz kernel-qcow2-linux-1d6fb222bd23696a25b9b256a3e076b9c60677b8.tar.xz kernel-qcow2-linux-1d6fb222bd23696a25b9b256a3e076b9c60677b8.zip | |
MIPS: lib: Use kernel_pref & user_pref in memcpy()
memcpy() is the only user of the PREF() & PREFE() macros from asm/asm.h.
Switch to using the kernel_pref() & user_pref() macros from
asm/asm-eva.h which fit more consistently with other abstractions of EVA
vs non-EVA instructions.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20907/
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'arch/mips/lib')
| -rw-r--r-- | arch/mips/lib/memcpy.S | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S index 207b320aa81d..cdd19d8561e8 100644 --- a/arch/mips/lib/memcpy.S +++ b/arch/mips/lib/memcpy.S @@ -204,9 +204,10 @@ #define LOADB(reg, addr, handler) EXC(lb, LD_INSN, reg, addr, handler) #define STOREB(reg, addr, handler) EXC(sb, ST_INSN, reg, addr, handler) -#define _PREF(hint, addr, type) \ +#ifdef CONFIG_CPU_HAS_PREFETCH +# define _PREF(hint, addr, type) \ .if \mode == LEGACY_MODE; \ - PREF(hint, addr); \ + kernel_pref(hint, addr); \ .else; \ .if ((\from == USEROP) && (type == SRC_PREFETCH)) || \ ((\to == USEROP) && (type == DST_PREFETCH)); \ @@ -218,12 +219,15 @@ * used later on. Therefore use $v1. \ */ \ .set at=v1; \ - PREFE(hint, addr); \ + user_pref(hint, addr); \ .set noat; \ .else; \ - PREF(hint, addr); \ + kernel_pref(hint, addr); \ .endif; \ .endif +#else +# define _PREF(hint, addr, type) +#endif #define PREFS(hint, addr) _PREF(hint, addr, SRC_PREFETCH) #define PREFD(hint, addr) _PREF(hint, addr, DST_PREFETCH) |