diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/smp.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/smp.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 39296bf7009e..33bd4dd2cb41 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -53,11 +53,6 @@ static void pnv_smp_setup_cpu(int cpu) xive_smp_setup_cpu(); else if (cpu != boot_cpuid) xics_setup_cpu(); - -#ifdef CONFIG_PPC_DOORBELL - if (cpu_has_feature(CPU_FTR_DBELL)) - doorbell_setup_this_cpu(); -#endif } static int pnv_smp_kick_cpu(int nr) @@ -254,17 +249,31 @@ static int pnv_smp_prepare_cpu(int cpu) return 0; } +static void pnv_cause_ipi(int cpu) +{ + if (doorbell_try_core_ipi(cpu)) + return; + + icp_ops->cause_ipi(cpu); +} + static void __init pnv_smp_probe(void) { if (xive_enabled()) xive_smp_probe(); else xics_smp_probe(); + + if (cpu_has_feature(CPU_FTR_DBELL) && !cpu_has_feature(CPU_FTR_ARCH_300)) { + smp_ops->cause_ipi = pnv_cause_ipi; + } else { + smp_ops->cause_ipi = icp_ops->cause_ipi; + } } static struct smp_ops_t pnv_smp_ops = { - .message_pass = smp_muxed_ipi_message_pass, - .cause_ipi = NULL, /* Filled at runtime by xi{cs,ve}_smp_probe() */ + .message_pass = NULL, /* Use smp_muxed_ipi_message_pass */ + .cause_ipi = NULL, /* Filled at runtime by pnv_smp_probe() */ .probe = pnv_smp_probe, .prepare_cpu = pnv_smp_prepare_cpu, .kick_cpu = pnv_smp_kick_cpu, |