diff options
| -rw-r--r-- | arch/x86/include/asm/irq_vectors.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index 42f0d4a30f1b..4980f48bbbb7 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -17,8 +17,8 @@ * Vectors 0 ... 31 : system traps and exceptions - hardcoded events * Vectors 32 ... 127 : device interrupts * Vector 128 : legacy int80 syscall interface - * Vectors 129 ... 229 : device interrupts - * Vectors 230 ... 255 : special interrupts + * Vectors 129 ... INVALIDATE_TLB_VECTOR_START-1 : device interrupts + * Vectors INVALIDATE_TLB_VECTOR_START ... 255 : special interrupts * * 64-bit x86 has per CPU IDT tables, 32-bit has one shared IDT table. * @@ -124,8 +124,13 @@ */ #define LOCAL_TIMER_VECTOR 0xef -/* f0-f7 used for spreading out TLB flushes: */ -#define NUM_INVALIDATE_TLB_VECTORS 8 +/* up to 32 vectors used for spreading out TLB flushes: */ +#if NR_CPUS <= 32 +# define NUM_INVALIDATE_TLB_VECTORS NR_CPUS +#else +# define NUM_INVALIDATE_TLB_VECTORS 32 +#endif + #define INVALIDATE_TLB_VECTOR_END 0xee #define INVALIDATE_TLB_VECTOR_START \ (INVALIDATE_TLB_VECTOR_END - NUM_INVALIDATE_TLB_VECTORS + 1) |