From 939fbf00805b395743e2406755ca20f5f959a598 Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Tue, 6 Oct 2015 22:48:11 -0500 Subject: [PATCH] powerpc/85xx: Implement 64-bit kexec support Unlike 32-bit 85xx kexec, we don't do a core reset. Signed-off-by: Tiejun Chen [scottwood: edit changelog, and cleanup] Signed-off-by: Scott Wood --- arch/powerpc/platforms/85xx/smp.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index a0763be7259e..2e4668435307 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -351,6 +351,7 @@ struct smp_ops_t smp_85xx_ops = { }; #ifdef CONFIG_KEXEC +#ifdef CONFIG_PPC32 atomic_t kexec_down_cpus = ATOMIC_INIT(0); void mpc85xx_smp_kexec_cpu_down(int crash_shutdown, int secondary) @@ -370,9 +371,18 @@ static void mpc85xx_smp_kexec_down(void *arg) if (ppc_md.kexec_cpu_down) ppc_md.kexec_cpu_down(0,1); } +#else +void mpc85xx_smp_kexec_cpu_down(int crash_shutdown, int secondary) +{ + local_irq_disable(); + hard_irq_disable(); + mpic_teardown_this_cpu(secondary); +} +#endif static void mpc85xx_smp_machine_kexec(struct kimage *image) { +#ifdef CONFIG_PPC32 int timeout = INT_MAX; int i, num_cpus = num_present_cpus(); @@ -393,6 +403,7 @@ static void mpc85xx_smp_machine_kexec(struct kimage *image) if ( i == smp_processor_id() ) continue; mpic_reset_core(i); } +#endif default_machine_kexec(image); } -- 2.34.1