From 3a09fb4570a1cce11472b8e5da3f6ee409f529d5 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Mon, 17 Jan 2011 10:52:05 +0800 Subject: [PATCH] x86: Allocate 32 tlb_invalidate_interrupt handler stubs Add up to 32 invalidate_interrupt handlers. How many handlers are added depends on NUM_INVALIDATE_TLB_VECTORS. So if NUM_INVALIDATE_TLB_VECTORS is smaller than 32, we reduce code size. Signed-off-by: Shaohua Li Cc: Andi Kleen Cc: Eric Dumazet LKML-Reference: <1295232725.1949.708.camel@sli10-conroe> Signed-off-by: Ingo Molnar --- arch/x86/include/asm/entry_arch.h | 5 +- arch/x86/include/asm/hw_irq.h | 24 ++++++++++ arch/x86/kernel/entry_64.S | 5 +- arch/x86/kernel/irqinit.c | 79 +++++++++++++++++++++++++++---- 4 files changed, 103 insertions(+), 10 deletions(-) diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h index 57650ab4a5f5..1cd6d26a0a8d 100644 --- a/arch/x86/include/asm/entry_arch.h +++ b/arch/x86/include/asm/entry_arch.h @@ -16,10 +16,13 @@ BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR) BUILD_INTERRUPT(irq_move_cleanup_interrupt,IRQ_MOVE_CLEANUP_VECTOR) BUILD_INTERRUPT(reboot_interrupt,REBOOT_VECTOR) -.irpc idx, "01234567" +.irp idx,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, \ + 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 +.if NUM_INVALIDATE_TLB_VECTORS > \idx BUILD_INTERRUPT3(invalidate_interrupt\idx, (INVALIDATE_TLB_VECTOR_START)+\idx, smp_invalidate_interrupt) +.endif .endr #endif diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index 0274ec5a7e62..bb9efe8706e2 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -45,6 +45,30 @@ extern void invalidate_interrupt4(void); extern void invalidate_interrupt5(void); extern void invalidate_interrupt6(void); extern void invalidate_interrupt7(void); +extern void invalidate_interrupt8(void); +extern void invalidate_interrupt9(void); +extern void invalidate_interrupt10(void); +extern void invalidate_interrupt11(void); +extern void invalidate_interrupt12(void); +extern void invalidate_interrupt13(void); +extern void invalidate_interrupt14(void); +extern void invalidate_interrupt15(void); +extern void invalidate_interrupt16(void); +extern void invalidate_interrupt17(void); +extern void invalidate_interrupt18(void); +extern void invalidate_interrupt19(void); +extern void invalidate_interrupt20(void); +extern void invalidate_interrupt21(void); +extern void invalidate_interrupt22(void); +extern void invalidate_interrupt23(void); +extern void invalidate_interrupt24(void); +extern void invalidate_interrupt25(void); +extern void invalidate_interrupt26(void); +extern void invalidate_interrupt27(void); +extern void invalidate_interrupt28(void); +extern void invalidate_interrupt29(void); +extern void invalidate_interrupt30(void); +extern void invalidate_interrupt31(void); extern void irq_move_cleanup_interrupt(void); extern void reboot_interrupt(void); diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index aed1ffbeb0c9..891268c645ea 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -975,9 +975,12 @@ apicinterrupt X86_PLATFORM_IPI_VECTOR \ x86_platform_ipi smp_x86_platform_ipi #ifdef CONFIG_SMP -.irpc idx, "01234567" +.irp idx,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, \ + 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 +.if NUM_INVALIDATE_TLB_VECTORS > \idx apicinterrupt (INVALIDATE_TLB_VECTOR_START)+\idx \ invalidate_interrupt\idx smp_invalidate_interrupt +.endif .endr #endif diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c index c752e973958d..7aad10a63e04 100644 --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -164,14 +164,77 @@ static void __init smp_intr_init(void) alloc_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt); /* IPIs for invalidation */ - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+0, invalidate_interrupt0); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+1, invalidate_interrupt1); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+2, invalidate_interrupt2); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+3, invalidate_interrupt3); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+4, invalidate_interrupt4); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+5, invalidate_interrupt5); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+6, invalidate_interrupt6); - alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+7, invalidate_interrupt7); +#define ALLOC_INVTLB_VEC(NR) \ + alloc_intr_gate(INVALIDATE_TLB_VECTOR_START+NR, \ + invalidate_interrupt##NR) + + switch (NUM_INVALIDATE_TLB_VECTORS) { + default: + ALLOC_INVTLB_VEC(31); + case 31: + ALLOC_INVTLB_VEC(30); + case 30: + ALLOC_INVTLB_VEC(29); + case 29: + ALLOC_INVTLB_VEC(28); + case 28: + ALLOC_INVTLB_VEC(27); + case 27: + ALLOC_INVTLB_VEC(26); + case 26: + ALLOC_INVTLB_VEC(25); + case 25: + ALLOC_INVTLB_VEC(24); + case 24: + ALLOC_INVTLB_VEC(23); + case 23: + ALLOC_INVTLB_VEC(22); + case 22: + ALLOC_INVTLB_VEC(21); + case 21: + ALLOC_INVTLB_VEC(20); + case 20: + ALLOC_INVTLB_VEC(19); + case 19: + ALLOC_INVTLB_VEC(18); + case 18: + ALLOC_INVTLB_VEC(17); + case 17: + ALLOC_INVTLB_VEC(16); + case 16: + ALLOC_INVTLB_VEC(15); + case 15: + ALLOC_INVTLB_VEC(14); + case 14: + ALLOC_INVTLB_VEC(13); + case 13: + ALLOC_INVTLB_VEC(12); + case 12: + ALLOC_INVTLB_VEC(11); + case 11: + ALLOC_INVTLB_VEC(10); + case 10: + ALLOC_INVTLB_VEC(9); + case 9: + ALLOC_INVTLB_VEC(8); + case 8: + ALLOC_INVTLB_VEC(7); + case 7: + ALLOC_INVTLB_VEC(6); + case 6: + ALLOC_INVTLB_VEC(5); + case 5: + ALLOC_INVTLB_VEC(4); + case 4: + ALLOC_INVTLB_VEC(3); + case 3: + ALLOC_INVTLB_VEC(2); + case 2: + ALLOC_INVTLB_VEC(1); + case 1: + ALLOC_INVTLB_VEC(0); + break; + } /* IPI for generic function call */ alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); -- 2.30.2