diff options
Diffstat (limited to 'arch/mips/sibyte/sb1250/smp.c')
| -rw-r--r-- | arch/mips/sibyte/sb1250/smp.c | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index 5950a288a7d..c0c4b3f88a0 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/smp.h> #include <linux/kernel_stat.h> +#include <linux/sched.h> #include <asm/mmu_context.h> #include <asm/io.h> @@ -47,7 +48,7 @@ static void *mailbox_regs[] = { /* * SMP init and finish on secondary CPUs */ -void __cpuinit sb1250_smp_init(void) +void sb1250_smp_init(void) { unsigned int imask = STATUSF_IP4 | STATUSF_IP3 | STATUSF_IP2 | STATUSF_IP1 | STATUSF_IP0; @@ -70,18 +71,19 @@ static void sb1250_send_ipi_single(int cpu, unsigned int action) __raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]); } -static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action) +static inline void sb1250_send_ipi_mask(const struct cpumask *mask, + unsigned int action) { unsigned int i; - for_each_cpu_mask(i, mask) + for_each_cpu(i, mask) sb1250_send_ipi_single(i, action); } /* * Code to run on secondary just after probing the CPU */ -static void __cpuinit sb1250_init_secondary(void) +static void sb1250_init_secondary(void) { extern void sb1250_smp_init(void); @@ -92,7 +94,7 @@ static void __cpuinit sb1250_init_secondary(void) * Do any tidying up before marking online and running the idle * loop */ -static void __cpuinit sb1250_smp_finish(void) +static void sb1250_smp_finish(void) { extern void sb1250_clockevent_init(void); @@ -101,17 +103,10 @@ static void __cpuinit sb1250_smp_finish(void) } /* - * Final cleanup after all secondaries booted - */ -static void sb1250_cpus_done(void) -{ -} - -/* * Setup the PC, SP, and GP of a secondary processor and start it * running! */ -static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle) +static void sb1250_boot_secondary(int cpu, struct task_struct *idle) { int retval; @@ -124,7 +119,7 @@ static void __cpuinit sb1250_boot_secondary(int cpu, struct task_struct *idle) /* * Use CFE to find out how many CPUs are available, setting up - * cpu_possible_map and the logical/physical mappings. + * cpu_possible_mask and the logical/physical mappings. * XXXKW will the boot CPU ever not be physical 0? * * Common setup before any secondaries are started @@ -133,14 +128,13 @@ static void __init sb1250_smp_setup(void) { int i, num; - cpus_clear(cpu_possible_map); - cpu_set(0, cpu_possible_map); + init_cpu_possible(cpumask_of(0)); __cpu_number_map[0] = 0; __cpu_logical_map[0] = 0; for (i = 1, num = 0; i < NR_CPUS; i++) { if (cfe_cpu_stop(i) == 0) { - cpu_set(i, cpu_possible_map); + set_cpu_possible(i, true); __cpu_number_map[i] = ++num; __cpu_logical_map[num] = i; } @@ -157,7 +151,6 @@ struct plat_smp_ops sb_smp_ops = { .send_ipi_mask = sb1250_send_ipi_mask, .init_secondary = sb1250_init_secondary, .smp_finish = sb1250_smp_finish, - .cpus_done = sb1250_cpus_done, .boot_secondary = sb1250_boot_secondary, .smp_setup = sb1250_smp_setup, .prepare_cpus = sb1250_prepare_cpus, @@ -166,19 +159,18 @@ struct plat_smp_ops sb_smp_ops = { void sb1250_mailbox_interrupt(void) { int cpu = smp_processor_id(); + int irq = K_INT_MBOX_0; unsigned int action; - kstat_this_cpu.irqs[K_INT_MBOX_0]++; + kstat_incr_irq_this_cpu(irq); /* Load the mailbox register to figure out what we're supposed to do */ action = (____raw_readq(mailbox_regs[cpu]) >> 48) & 0xffff; /* Clear the mailbox to clear the interrupt */ ____raw_writeq(((u64)action) << 48, mailbox_clear_regs[cpu]); - /* - * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the - * interrupt will do the reschedule for us - */ + if (action & SMP_RESCHEDULE_YOURSELF) + scheduler_ipi(); if (action & SMP_CALL_FUNCTION) smp_call_function_interrupt(); |
