MIPS: lib: Use kernel_pref & user_pref in memcpy() (1d6fb222) · Commits · 戴 / test

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

arch/mips/lib/memcpy.S

+8 −4

Original line number	Diff line number	Diff line
		@@ -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)

		#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)

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