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authorRavikiran G Thirumalai <kiran@scalex86.org>2006-04-07 19:50:09 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-09 11:53:52 -0700
commite405d067298b2b960bf20318e91ed842157c65bc (patch)
treeedb9bf3a90c70e7b7d490504f7ea695b39aa6a08 /arch/x86_64
parent3d34ee6891e274dfb6a22930546d37738cdbe9c4 (diff)
[PATCH] x86_64: Fixup read_mostly section on internode cache line size for vSMP
Fixup the read mostly section to start at internode cacheline boundary. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/Kconfig5
-rw-r--r--arch/x86_64/kernel/vmlinux.lds.S2
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 4310b4a311a..7df2fe1844b 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -136,6 +136,11 @@ config X86_L1_CACHE_SHIFT
default "7" if GENERIC_CPU || MPSC
default "6" if MK8
+config X86_INTERNODE_CACHE_BYTES
+ int
+ default "4096" if X86_VSMP
+ default X86_L1_CACHE_BYTES if !X86_VSMP
+
config X86_TSC
bool
default y
diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index 39ff0708f80..b81f473c4a1 100644
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -65,7 +65,7 @@ SECTIONS
.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
*(.data.cacheline_aligned)
}
- . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
+ . = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES);
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
*(.data.read_mostly)
}