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| author | Tejun Heo <tj@kernel.org> | 2009-01-21 17:26:06 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-01-21 17:26:06 +0900 |
| commit | 02cf94c370e0dc9bf408fe45eb86fe9ad58eaf7f (patch) | |
| tree | e12620b5fead5ec6d90b54046a5025c2b28234a0 /arch/x86/kernel/irqinit_32.c | |
| parent | 6dd01bedee6c3191643db303a1dc530bad56ec55 (diff) | |
| download | kernel_samsung_smdk4412-02cf94c370e0dc9bf408fe45eb86fe9ad58eaf7f.zip kernel_samsung_smdk4412-02cf94c370e0dc9bf408fe45eb86fe9ad58eaf7f.tar.gz kernel_samsung_smdk4412-02cf94c370e0dc9bf408fe45eb86fe9ad58eaf7f.tar.bz2 | |
x86: make x86_32 use tlb_64.c
Impact: less contention when issuing invalidate IPI, cleanup
Make x86_32 use the same tlb code as 64bit. The 64bit code uses
multiple IPI vectors for tlb shootdown to reduce contention. This
patch makes x86_32 allocate the same 8 IPIs as x86_64 and share the
code paths.
Note that the usage of asmlinkage is inconsistent for x86_32 and 64
and calls for further cleanup. This has been noted with a FIXME
comment in tlb_64.c.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/kernel/irqinit_32.c')
| -rw-r--r-- | arch/x86/kernel/irqinit_32.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c index 1507ad4..bf629ca 100644 --- a/arch/x86/kernel/irqinit_32.c +++ b/arch/x86/kernel/irqinit_32.c @@ -149,8 +149,15 @@ void __init native_init_IRQ(void) */ alloc_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt); - /* IPI for invalidation */ - alloc_intr_gate(INVALIDATE_TLB_VECTOR, invalidate_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); /* IPI for generic function call */ alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); |