summaryrefslogtreecommitdiff
path: root/include/asm-x86_64/cache.h
blob: c8043a16152e31fc52d3a48c32ae94ec2155eed9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/*
 * 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

#define __read_mostly __attribute__((__section__(".data.read_mostly")))

#endif

#endif