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| author | Tiejun Chen <tiejun.chen@windriver.com> | 2015-10-07 06:48:11 +0300 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-10-28 02:13:25 +0300 |
| commit | 939fbf00805b395743e2406755ca20f5f959a598 (patch) | |
| tree | d12d65677982e1315e758d06c7f2de1446d7ee55 | |
| parent | eba5de8dc163fac4d20f0afed8183431491b570f (diff) | |
| download | linux-939fbf00805b395743e2406755ca20f5f959a598.tar.xz | |
powerpc/85xx: Implement 64-bit kexec support
Unlike 32-bit 85xx kexec, we don't do a core reset.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
[scottwood: edit changelog, and cleanup]
Signed-off-by: Scott Wood <scottwood@freescale.com>
| -rw-r--r-- | arch/powerpc/platforms/85xx/smp.c | 11 |
1 files changed, 11 insertions, 0 deletions
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); } |