From 221c185d4e11b4061409da5d592779ced484614c Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Fri, 5 Mar 2010 10:43:24 +0000 Subject: powerpc/476: Add isync after loading mmu and debug spr's 476 requires an isync after loading MMU and debug related SPR's. Some of these are in performance-critical paths and may need to be optimized, but initially, we're playing it safe. Signed-off-by: Torez Smith Signed-off-by: Dave Kleikamp Signed-off-by: Josh Boyer --- arch/powerpc/kernel/process.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/kernel/process.c') diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index e4d71ced97e..9d255b4f0a0 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -371,6 +371,9 @@ int set_dabr(unsigned long dabr) /* XXX should we have a CPU_FTR_HAS_DABR ? */ #ifdef CONFIG_PPC_ADV_DEBUG_REGS mtspr(SPRN_DAC1, dabr); +#ifdef CONFIG_PPC_47x + isync(); +#endif #elif defined(CONFIG_PPC_BOOK3S) mtspr(SPRN_DABR, dabr); #endif -- cgit v1.2.3-70-g09d2