From 538380da1a41c981c640bd22a091fdfc32d1e81e Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Fri, 25 Jan 2008 16:15:44 +0100 Subject: CRIS v32: Update kernel/smp.c for CRIS v32. - Change include paths to machine specific headers (asm/arch/hwregs -> hwregs) - Add cpu_possible_map as cpumask_t and export it. - Drop struct pt_regs parameter from crisv32_ipi_interrupt. - timer -> timer0 --- arch/cris/arch-v32/kernel/smp.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) (limited to 'arch/cris/arch-v32') diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c index 171c96e0a5d3..a9c3334e46c9 100644 --- a/arch/cris/arch-v32/kernel/smp.c +++ b/arch/cris/arch-v32/kernel/smp.c @@ -1,11 +1,12 @@ +#include #include -#include -#include -#include +#include +#include +#include #include #include -#include -#include +#include +#include #include #include @@ -20,6 +21,7 @@ #define IPI_SCHEDULE 1 #define IPI_CALL 2 #define IPI_FLUSH_TLB 4 +#define IPI_BOOT 8 #define FLUSH_ALL (void*)0xffffffff @@ -30,6 +32,8 @@ spinlock_t cris_atomic_locks[] = { [0 ... LOCK_COUNT - 1] = SPIN_LOCK_UNLOCKED}; cpumask_t cpu_online_map = CPU_MASK_NONE; EXPORT_SYMBOL(cpu_online_map); cpumask_t phys_cpu_present_map = CPU_MASK_NONE; +cpumask_t cpu_possible_map; +EXPORT_SYMBOL(cpu_possible_map); EXPORT_SYMBOL(phys_cpu_present_map); /* Variables used during SMP boot */ @@ -55,13 +59,12 @@ static unsigned long flush_addr; extern int setup_irq(int, struct irqaction *); /* Mode registers */ -static unsigned long irq_regs[NR_CPUS] = -{ +static unsigned long irq_regs[NR_CPUS] = { regi_irq, regi_irq2 }; -static irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs); +static irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id); static int send_ipi(int vector, int wait, cpumask_t cpu_mask); static struct irqaction irq_ipi = { .handler = crisv32_ipi_interrupt, @@ -101,6 +104,7 @@ void __devinit smp_prepare_boot_cpu(void) cpu_set(0, cpu_online_map); cpu_set(0, phys_cpu_present_map); + cpu_set(0, cpu_possible_map); } void __init smp_cpus_done(unsigned int max_cpus) @@ -113,6 +117,7 @@ smp_boot_one_cpu(int cpuid) { unsigned timeout; struct task_struct *idle; + cpumask_t cpu_mask = CPU_MASK_NONE; idle = fork_idle(cpuid); if (IS_ERR(idle)) @@ -124,6 +129,12 @@ smp_boot_one_cpu(int cpuid) smp_init_current_idle_thread = task_thread_info(idle); cpu_now_booting = cpuid; + /* Kick it */ + cpu_set(cpuid, cpu_online_map); + cpu_set(cpuid, cpu_mask); + send_ipi(IPI_BOOT, 0, cpu_mask); + cpu_clear(cpuid, cpu_online_map); + /* Wait for CPU to come online */ for (timeout = 0; timeout < 10000; timeout++) { if(cpu_online(cpuid)) { @@ -165,7 +176,7 @@ void __init smp_callin(void) /* Enable IRQ and idle */ REG_WR(intr_vect, irq_regs[cpu], rw_mask, vect_mask); unmask_irq(IPI_INTR_VECT); - unmask_irq(TIMER_INTR_VECT); + unmask_irq(TIMER0_INTR_VECT); preempt_disable(); local_irq_enable(); @@ -328,7 +339,7 @@ int smp_call_function(void (*func)(void *info), void *info, return ret; } -irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs) +irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id) { void (*func) (void *info) = call_data->func; void *info = call_data->info; -- cgit v1.2.2