diff options
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/smp-gic.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/kernel/smp-gic.c b/arch/mips/kernel/smp-gic.c index 3bb1f92ab525..3b21a96d1ccb 100644 --- a/arch/mips/kernel/smp-gic.c +++ b/arch/mips/kernel/smp-gic.c @@ -15,12 +15,14 @@ #include <linux/printk.h> #include <asm/gic.h> +#include <asm/mips-cpc.h> #include <asm/smp-ops.h> void gic_send_ipi_single(int cpu, unsigned int action) { unsigned long flags; unsigned int intr; + unsigned int core = cpu_data[cpu].core; pr_debug("CPU%d: %s cpu %d action %u status %08x\n", smp_processor_id(), __func__, cpu, action, read_c0_status()); @@ -41,6 +43,15 @@ void gic_send_ipi_single(int cpu, unsigned int action) } gic_send_ipi(intr); + + if (mips_cpc_present() && (core != current_cpu_data.core)) { + while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) { + mips_cpc_lock_other(core); + write_cpc_co_cmd(CPC_Cx_CMD_PWRUP); + mips_cpc_unlock_other(); + } + } + local_irq_restore(flags); } |
