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authorMagnus Damm <damm@igel.co.jp>2009-02-27 16:41:17 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-02-27 16:41:17 +0900
commit0197f21ca5c5ed0df2a14a60ef073e8163e6533b (patch)
treed5068ed91e1e9b438d46934c50d97dcadd24e8bb /arch/sh/include/asm
parent4f099ebb27211d378304ddcfa507097f5128f5b9 (diff)
sh: prefetch early exception data on sh4/sh4a.
Prefetch early exception data. There is unused space in our exception handler cache line anyway, so this is almost free. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm')
-rw-r--r--arch/sh/include/asm/entry-macros.S5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/sh/include/asm/entry-macros.S b/arch/sh/include/asm/entry-macros.S
index 2dab0b8d945..3a4752a6572 100644
--- a/arch/sh/include/asm/entry-macros.S
+++ b/arch/sh/include/asm/entry-macros.S
@@ -31,3 +31,8 @@
#endif
.endm
+#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4)
+# define PREF(x) pref @x
+#else
+# define PREF(x) nop
+#endif