Blame view

kernel/linux-rt-4.4.41/arch/xtensa/include/asm/cache.h 969 Bytes
5113f6f70   김현기   kernel add
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
28
29
30
31
32
33
34
  /*
   * include/asm-xtensa/cache.h
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * (C) 2001 - 2005 Tensilica Inc.
   */
  
  #ifndef _XTENSA_CACHE_H
  #define _XTENSA_CACHE_H
  
  #include <variant/core.h>
  
  #define L1_CACHE_SHIFT	XCHAL_DCACHE_LINEWIDTH
  #define L1_CACHE_BYTES	XCHAL_DCACHE_LINESIZE
  #define SMP_CACHE_BYTES	L1_CACHE_BYTES
  
  #define DCACHE_WAY_SIZE	(XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS)
  #define ICACHE_WAY_SIZE	(XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS)
  #define DCACHE_WAY_SHIFT (XCHAL_DCACHE_SETWIDTH + XCHAL_DCACHE_LINEWIDTH)
  #define ICACHE_WAY_SHIFT (XCHAL_ICACHE_SETWIDTH + XCHAL_ICACHE_LINEWIDTH)
  
  /* Maximum cache size per way. */
  #if DCACHE_WAY_SIZE >= ICACHE_WAY_SIZE
  # define CACHE_WAY_SIZE DCACHE_WAY_SIZE
  #else
  # define CACHE_WAY_SIZE ICACHE_WAY_SIZE
  #endif
  
  #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
  
  #endif	/* _XTENSA_CACHE_H */