From 8a01960fb5bd95b920657133de52259227ee6ad7 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Fri, 9 Nov 2018 17:33:32 +0000 Subject: [PATCH] powerpc/smp: Use code patching to restore reset vector Instead of hardcoding reset vector restore, use patch_instruction() Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/86xx/mpc86xx_smp.c | 3 +-- arch/powerpc/platforms/powermac/smp.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/86xx/mpc86xx_smp.c b/arch/powerpc/platforms/86xx/mpc86xx_smp.c index 020e84a..9f2c1ec 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_smp.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_smp.c @@ -86,8 +86,7 @@ smp_86xx_kick_cpu(int nr) mdelay(1); /* Restore the exception vector */ - *vector = save_vector; - flush_icache_range((unsigned long) vector, (unsigned long) vector + 4); + patch_instruction(vector, save_vector); local_irq_restore(flags); diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 447da6db..35be6e0 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -832,8 +832,7 @@ static int smp_core99_kick_cpu(int nr) mdelay(1); /* Restore our exception vector */ - *vector = save_vector; - flush_icache_range((unsigned long) vector, (unsigned long) vector + 4); + patch_instruction(vector, save_vector); local_irq_restore(flags); if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347); -- 2.7.4