[PATCH 02/58] MIPS: asm: Add prefetch instruction for EVA

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From: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>

EVA can use the PREFE instruction to perform the virtual address
translation using the user mapping of the address rather than the
kernel mapping.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>
Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
---
 arch/mips/include/asm/asm.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/mips/include/asm/asm.h b/arch/mips/include/asm/asm.h
index 879691d..b79be18a 100644
--- a/arch/mips/include/asm/asm.h
+++ b/arch/mips/include/asm/asm.h
@@ -149,6 +149,13 @@ symbol		=	value
 		pref	hint, addr;			\
 		.set	pop
 
+#define PREFE(hint, addr)				\
+		.set	push;				\
+		.set	mips0;				\
+		.set	eva;				\
+		prefe	hint, addr;			\
+		.set	pop
+
 #define PREFX(hint,addr)				\
 		.set	push;				\
 		.set	mips4;				\
@@ -158,6 +165,7 @@ symbol		=	value
 #else /* !CONFIG_CPU_HAS_PREFETCH */
 
 #define PREF(hint, addr)
+#define PREFE(hint, addr)
 #define PREFX(hint, addr)
 
 #endif /* !CONFIG_CPU_HAS_PREFETCH */
-- 
1.8.5.3




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