Signed-off-by: Jens Axboe <[EMAIL PROTECTED]> --- arch/x86/kernel/smp_32.c | 15 +++++++++++++++ arch/x86/kernel/smpboot_32.c | 3 +++ include/asm-x86/hw_irq_32.h | 1 + include/asm-x86/mach-default/entry_arch.h | 1 + include/asm-x86/mach-default/irq_vectors.h | 1 + 5 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c index dc0cde9..668b8a4 100644 --- a/arch/x86/kernel/smp_32.c +++ b/arch/x86/kernel/smp_32.c @@ -672,6 +672,21 @@ void smp_call_function_interrupt(struct pt_regs *regs) } } +fastcall void smp_raise_block_softirq(struct pt_regs *regs) +{ + unsigned long flags; + + ack_APIC_irq(); + local_irq_save(flags); + raise_softirq_irqoff(BLOCK_SOFTIRQ); + local_irq_restore(flags); +} + +void arch_raise_softirq_on_cpu(int cpu, unsigned int nr) +{ + send_IPI_mask(cpumask_of_cpu(cpu), BLOCK_SOFTIRQ_VECTOR); +} + static int convert_apicid_to_cpu(int apic_id) { int i; diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index 579b9b7..ca35697 100644 --- a/arch/x86/kernel/smpboot_32.c +++ b/arch/x86/kernel/smpboot_32.c @@ -1304,6 +1304,9 @@ void __init smp_intr_init(void) /* IPI for generic function call */ set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); + + /* IPI for scheduling block softirq */ + set_intr_gate(BLOCK_SOFTIRQ_VECTOR, raise_block_softirq); } /* diff --git a/include/asm-x86/hw_irq_32.h b/include/asm-x86/hw_irq_32.h index ea88054..0a053d8 100644 --- a/include/asm-x86/hw_irq_32.h +++ b/include/asm-x86/hw_irq_32.h @@ -32,6 +32,7 @@ extern void (*const interrupt[NR_IRQS])(void); void reschedule_interrupt(void); void invalidate_interrupt(void); void call_function_interrupt(void); +void raise_block_softirq(void); #endif #ifdef CONFIG_X86_LOCAL_APIC diff --git a/include/asm-x86/mach-default/entry_arch.h b/include/asm-x86/mach-default/entry_arch.h index bc86146..e96ed61 100644 --- a/include/asm-x86/mach-default/entry_arch.h +++ b/include/asm-x86/mach-default/entry_arch.h @@ -13,6 +13,7 @@ BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR) BUILD_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR) BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR) +BUILD_INTERRUPT(raise_block_softirq,BLOCK_SOFTIRQ_VECTOR); #endif /* diff --git a/include/asm-x86/mach-default/irq_vectors.h b/include/asm-x86/mach-default/irq_vectors.h index 881c63c..f7535a3 100644 --- a/include/asm-x86/mach-default/irq_vectors.h +++ b/include/asm-x86/mach-default/irq_vectors.h @@ -48,6 +48,7 @@ #define INVALIDATE_TLB_VECTOR 0xfd #define RESCHEDULE_VECTOR 0xfc #define CALL_FUNCTION_VECTOR 0xfb +#define BLOCK_SOFTIRQ_VECTOR 0xfa #define THERMAL_APIC_VECTOR 0xf0 /* -- 1.5.4.22.g7a20 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/