kernel-ark/include/asm-x86_64/cache.h
Ravikiran G Thirumalai 5fd63b3085 [PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_align
vSMP specific alignment patch to
1. Define INTERNODE_CACHE_SHIFT for vSMP
2. Use this for alignment of critical structures
3. Use INTERNODE_CACHE_SHIFT for ARCH_MIN_TASKALIGN,
   and let the slab align task_struct allocations to the internode cacheline size
4. Introduce and use ARCH_MIN_MMSTRUCT_ALIGN for mm_struct slab allocations.

Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Signed-off-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 19:05:01 -08:00

26 lines
556 B
C

/*
* include/asm-x8664/cache.h
*/
#ifndef __ARCH_X8664_CACHE_H
#define __ARCH_X8664_CACHE_H
#include <linux/config.h>
/* L1 cache line size */
#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
#ifdef CONFIG_X86_VSMP
/* vSMP Internode cacheline shift */
#define INTERNODE_CACHE_SHIFT (12)
#ifdef CONFIG_SMP
#define __cacheline_aligned_in_smp \
__attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT)))) \
__attribute__((__section__(".data.page_aligned")))
#endif
#endif
#endif