Subversion Repositories shark

Rev

Rev 422 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
422 giacomo 1 
#ifndef __LINUX_CACHE_H
2 
#define __LINUX_CACHE_H
3 
 
4 
#include <linux/kernel.h>
5 
#include <linux/config.h>
6 
#include <asm/cache.h>
7 
 
8 
#ifndef L1_CACHE_ALIGN
9 
#define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES)
10 
#endif
11 
 
12 
#ifndef SMP_CACHE_BYTES
13 
#define SMP_CACHE_BYTES L1_CACHE_BYTES
14 
#endif
15 
 
16 
#ifndef ____cacheline_aligned
17 
#define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
18 
#endif
19 
 
20 
#ifndef ____cacheline_aligned_in_smp
21 
#ifdef CONFIG_SMP
22 
#define ____cacheline_aligned_in_smp ____cacheline_aligned
23 
#else
24 
#define ____cacheline_aligned_in_smp
25 
#endif /* CONFIG_SMP */
26 
#endif
27 
 
28 
#ifndef __cacheline_aligned
29 
#ifdef MODULE
30 
#define __cacheline_aligned ____cacheline_aligned
31 
#else
32 
#define __cacheline_aligned                                     \
33 
  __attribute__((__aligned__(SMP_CACHE_BYTES),                  \
34 
                 __section__(".data.cacheline_aligned")))
35 
#endif
36 
#endif /* __cacheline_aligned */
37 
 
38 
#ifndef __cacheline_aligned_in_smp
39 
#ifdef CONFIG_SMP
40 
#define __cacheline_aligned_in_smp __cacheline_aligned
41 
#else
42 
#define __cacheline_aligned_in_smp
43 
#endif /* CONFIG_SMP */
44 
#endif
45 
 
46 
#if !defined(____cacheline_maxaligned_in_smp)
47 
#if defined(CONFIG_SMP)
48 
#define ____cacheline_maxaligned_in_smp \
49 
        __attribute__((__aligned__(1 << (L1_CACHE_SHIFT_MAX))))
50 
#else
51 
#define ____cacheline_maxaligned_in_smp
52 
#endif
53 
#endif
54 
 
55 
#endif /* __LINUX_CACHE_H */