diff options
Diffstat (limited to 'arch/mips/sgi-ip27')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-init.c | 1 | ||||
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-klnuma.c | 1 | ||||
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-smp.c | 109 |
3 files changed, 64 insertions, 47 deletions
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c index 3305fa9ae66..a49e7c85f72 100644 --- a/arch/mips/sgi-ip27/ip27-init.c +++ b/arch/mips/sgi-ip27/ip27-init.c @@ -27,7 +27,6 @@ #include <asm/sn/hub.h> #include <asm/sn/intr.h> #include <asm/current.h> -#include <asm/smp.h> #include <asm/processor.h> #include <asm/mmu_context.h> #include <asm/thread_info.h> diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c index f10d9839006..48932ce1d73 100644 --- a/arch/mips/sgi-ip27/ip27-klnuma.c +++ b/arch/mips/sgi-ip27/ip27-klnuma.c @@ -11,7 +11,6 @@ #include <asm/page.h> #include <asm/sections.h> -#include <asm/smp.h> #include <asm/sn/types.h> #include <asm/sn/arch.h> #include <asm/sn/gda.h> diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index a70656d4219..f15fc93d6b3 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c @@ -140,30 +140,51 @@ static __init void intr_clear_all(nasid_t nasid) REMOTE_HUB_CLR_INTR(nasid, i); } -void __init plat_smp_setup(void) +static void ip27_send_ipi_single(int destid, unsigned int action) { - cnodeid_t cnode; + int irq; - for_each_online_node(cnode) { - if (cnode == 0) - continue; - intr_clear_all(COMPACT_TO_NASID_NODEID(cnode)); + switch (action) { + case SMP_RESCHEDULE_YOURSELF: + irq = CPU_RESCHED_A_IRQ; + break; + case SMP_CALL_FUNCTION: + irq = CPU_CALL_A_IRQ; + break; + default: + panic("sendintr"); } - replicate_kernel_text(); + irq += cputoslice(destid); /* - * Assumption to be fixed: we're always booted on logical / physical - * processor 0. While we're always running on logical processor 0 - * this still means this is physical processor zero; it might for - * example be disabled in the firwware. + * Convert the compact hub number to the NASID to get the correct + * part of the address space. Then set the interrupt bit associated + * with the CPU we want to send the interrupt to. */ - alloc_cpupda(0, 0); + REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq); } -void __init plat_prepare_cpus(unsigned int max_cpus) +static void ip27_send_ipi_mask(cpumask_t mask, unsigned int action) +{ + unsigned int i; + + for_each_cpu_mask(i, mask) + ip27_send_ipi_single(i, action); +} + +static void __cpuinit ip27_init_secondary(void) +{ + per_cpu_init(); + local_irq_enable(); +} + +static void __cpuinit ip27_smp_finish(void) +{ +} + +static void __init ip27_cpus_done(void) { - /* We already did everything necessary earlier */ } /* @@ -171,7 +192,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus) * set sp to the kernel stack of the newly created idle process, gp to the proc * struct so that current_thread_info() will work. */ -void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) +static void __cpuinit ip27_boot_secondary(int cpu, struct task_struct *idle) { unsigned long gp = (unsigned long)task_thread_info(idle); unsigned long sp = __KSTK_TOS(idle); @@ -181,41 +202,39 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) 0, (void *) sp, (void *) gp); } -void __cpuinit prom_init_secondary(void) +static void __init ip27_smp_setup(void) { - per_cpu_init(); - local_irq_enable(); -} - -void __init prom_cpus_done(void) -{ -} - -void __cpuinit prom_smp_finish(void) -{ -} - -void core_send_ipi(int destid, unsigned int action) -{ - int irq; + cnodeid_t cnode; - switch (action) { - case SMP_RESCHEDULE_YOURSELF: - irq = CPU_RESCHED_A_IRQ; - break; - case SMP_CALL_FUNCTION: - irq = CPU_CALL_A_IRQ; - break; - default: - panic("sendintr"); + for_each_online_node(cnode) { + if (cnode == 0) + continue; + intr_clear_all(COMPACT_TO_NASID_NODEID(cnode)); } - irq += cputoslice(destid); + replicate_kernel_text(); /* - * Convert the compact hub number to the NASID to get the correct - * part of the address space. Then set the interrupt bit associated - * with the CPU we want to send the interrupt to. + * Assumption to be fixed: we're always booted on logical / physical + * processor 0. While we're always running on logical processor 0 + * this still means this is physical processor zero; it might for + * example be disabled in the firwware. */ - REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq); + alloc_cpupda(0, 0); } + +static void __init ip27_prepare_cpus(unsigned int max_cpus) +{ + /* We already did everything necessary earlier */ +} + +struct plat_smp_ops ip27_smp_ops = { + .send_ipi_single = ip27_send_ipi_single, + .send_ipi_mask = ip27_send_ipi_mask, + .init_secondary = ip27_init_secondary, + .smp_finish = ip27_smp_finish, + .cpus_done = ip27_cpus_done, + .boot_secondary = ip27_boot_secondary, + .smp_setup = ip27_smp_setup, + .prepare_cpus = ip27_prepare_cpus, +}; |