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authorTejun Heo <tj@kernel.org>2009-01-21 11:26:06 +0300
committerTejun Heo <tj@kernel.org>2009-01-21 11:26:06 +0300
commit02cf94c370e0dc9bf408fe45eb86fe9ad58eaf7f (patch)
treee12620b5fead5ec6d90b54046a5025c2b28234a0 /arch/x86/include/asm/irq_vectors.h
parent6dd01bedee6c3191643db303a1dc530bad56ec55 (diff)
downloadlinux-02cf94c370e0dc9bf408fe45eb86fe9ad58eaf7f.tar.xz
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/include/asm/irq_vectors.h')
-rw-r--r--arch/x86/include/asm/irq_vectors.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 4ee8f800504b..9a83a10a5d51 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -58,8 +58,11 @@
# define CALL_FUNCTION_VECTOR 0xfc
# define CALL_FUNCTION_SINGLE_VECTOR 0xfb
# define THERMAL_APIC_VECTOR 0xfa
-/* 0xf1 - 0xf9 : free */
-# define INVALIDATE_TLB_VECTOR 0xf0
+/* 0xf8 - 0xf9 : free */
+# define INVALIDATE_TLB_VECTOR_END 0xf7
+# define INVALIDATE_TLB_VECTOR_START 0xf0 /* f0-f7 used for TLB flush */
+
+# define NUM_INVALIDATE_TLB_VECTORS 8
#else