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Commit e405d067 authored by Ravikiran G Thirumalai's avatar Ravikiran G Thirumalai Committed by Linus Torvalds
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[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: default avatarRavikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: default avatarShai Fultheim <shai@scalex86.org>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 3d34ee68

arch/x86_64/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -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

arch/x86_64/kernel/vmlinux.lds.S

+1 −1
Original line number Diff line number Diff line
@@ -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)

  }