diff options
| -rw-r--r-- | arch/mips/include/asm/cpu-info.h | 17 | ||||
| -rw-r--r-- | arch/mips/kernel/smp-cps.c | 8 | ||||
| -rw-r--r-- | arch/mips/kernel/smp.c | 12 | ||||
| -rw-r--r-- | drivers/cpuidle/cpuidle-cps.c | 2 | ||||
| -rw-r--r-- | drivers/irqchip/irq-mips-cpu.c | 2 |
5 files changed, 28 insertions, 13 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index 9ae9272..0c61bdc 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -158,6 +158,23 @@ static inline unsigned int cpu_vpe_id(struct cpuinfo_mips *cpuinfo) extern void cpu_set_core(struct cpuinfo_mips *cpuinfo, unsigned int core); extern void cpu_set_vpe_id(struct cpuinfo_mips *cpuinfo, unsigned int vpe); +static inline bool cpus_are_siblings(int cpua, int cpub) +{ + struct cpuinfo_mips *infoa = &cpu_data[cpua]; + struct cpuinfo_mips *infob = &cpu_data[cpub]; + unsigned int gnuma, gnumb; + + if (infoa->package != infob->package) + return false; + + gnuma = infoa->globalnumber & ~MIPS_GLOBALNUMBER_VP; + gnumb = infob->globalnumber & ~MIPS_GLOBALNUMBER_VP; + if (gnuma != gnumb) + return false; + + return true; +} + static inline unsigned long cpu_asid_inc(void) { return 1 << CONFIG_MIPS_ASID_SHIFT; diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 699459e..8cc50880 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -147,7 +147,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus) cpu_has_dc_aliases ? "dcache aliasing" : ""); for_each_present_cpu(c) { - if (cpu_core(&cpu_data[c])) + if (!cpus_are_siblings(smp_processor_id(), c)) set_cpu_present(c, false); } } @@ -319,10 +319,10 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle) mips_cm_unlock_other(); } - if (core != cpu_core(¤t_cpu_data)) { + if (!cpus_are_siblings(cpu, smp_processor_id())) { /* Boot a VPE on another powered up core */ for (remote = 0; remote < NR_CPUS; remote++) { - if (cpu_core(&cpu_data[remote]) != core) + if (!cpus_are_siblings(cpu, remote)) continue; if (cpu_online(remote)) break; @@ -431,7 +431,7 @@ void play_dead(void) /* Look for another online VPE within the core */ for_each_online_cpu(cpu_death_sibling) { - if (cpu_core(&cpu_data[cpu_death_sibling]) != core) + if (!cpus_are_siblings(cpu, cpu_death_sibling)) continue; /* diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index a54e585..4cc4389 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -96,8 +96,7 @@ static inline void set_cpu_sibling_map(int cpu) if (smp_num_siblings > 1) { for_each_cpu(i, &cpu_sibling_setup_map) { - if (cpu_data[cpu].package == cpu_data[i].package && - cpu_core(&cpu_data[cpu]) == cpu_core(&cpu_data[i])) { + if (cpus_are_siblings(cpu, i)) { cpumask_set_cpu(i, &cpu_sibling_map[cpu]); cpumask_set_cpu(cpu, &cpu_sibling_map[i]); } @@ -134,8 +133,7 @@ void calculate_cpu_foreign_map(void) for_each_online_cpu(i) { core_present = 0; for_each_cpu(k, &temp_foreign_map) - if (cpu_data[i].package == cpu_data[k].package && - cpu_core(&cpu_data[i]) == cpu_core(&cpu_data[k])) + if (cpus_are_siblings(i, k)) core_present = 1; if (!core_present) cpumask_set_cpu(i, &temp_foreign_map); @@ -186,11 +184,11 @@ void mips_smp_send_ipi_mask(const struct cpumask *mask, unsigned int action) if (mips_cpc_present()) { for_each_cpu(cpu, mask) { - core = cpu_core(&cpu_data[cpu]); - - if (core == cpu_core(¤t_cpu_data)) + if (cpus_are_siblings(cpu, smp_processor_id())) continue; + core = cpu_core(&cpu_data[cpu]); + while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) { mips_cm_lock_other(core, 0); mips_cpc_lock_other(core); diff --git a/drivers/cpuidle/cpuidle-cps.c b/drivers/cpuidle/cpuidle-cps.c index 6041b61..72b5e47 100644 --- a/drivers/cpuidle/cpuidle-cps.c +++ b/drivers/cpuidle/cpuidle-cps.c @@ -37,7 +37,7 @@ static int cps_nc_enter(struct cpuidle_device *dev, * TODO: don't treat core 0 specially, just prevent the final core * TODO: remap interrupt affinity temporarily */ - if (!cpu_core(&cpu_data[dev->cpu]) && (index > STATE_NC_WAIT)) + if (cpus_are_siblings(0, dev->cpu) && (index > STATE_NC_WAIT)) index = STATE_NC_WAIT; /* Select the appropriate cps_pm_state */ diff --git a/drivers/irqchip/irq-mips-cpu.c b/drivers/irqchip/irq-mips-cpu.c index 14461cb..66f97fd 100644 --- a/drivers/irqchip/irq-mips-cpu.c +++ b/drivers/irqchip/irq-mips-cpu.c @@ -101,7 +101,7 @@ static void mips_mt_send_ipi(struct irq_data *d, unsigned int cpu) local_irq_save(flags); /* We can only send IPIs to VPEs within the local core */ - WARN_ON(cpu_data[cpu].core != current_cpu_data.core); + WARN_ON(!cpus_are_siblings(smp_processor_id(), cpu)); vpflags = dvpe(); settc(cpu_vpe_id(&cpu_data[cpu])); |
