arch/nios2/lib/cache.S

   1 /*
   2  * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
   3  * Scott McNutt <smcnutt@psyent.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <config.h>
   9
  10         .text
  11
  12         .global flush_dcache
  13
  14 flush_dcache:
  15         add     r5, r5, r4
  16         movhi   r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
  17         ori     r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
  18 0:      flushd  0(r4)
  19         add     r4, r4, r8
  20         bltu    r4, r5, 0b
  21         ret
  22
  23
  24         .global flush_icache
  25
  26 flush_icache:
  27         add     r5, r5, r4
  28         movhi   r8, %hi(CONFIG_SYS_ICACHELINE_SIZE)
  29         ori     r8, r8, %lo(CONFIG_SYS_ICACHELINE_SIZE)
  30 1:      flushi  r4
  31         add     r4, r4, r8
  32         bltu    r4, r5, 1b
  33         ret
  34
  35         .global flush_dcache_range
  36
  37 flush_dcache_range:
  38         movhi   r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
  39         ori     r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
  40 0:      flushd  0(r4)
  41         add     r4, r4, r8
  42         bltu    r4, r5, 0b
  43         ret
  44
  45         .global flush_cache
  46
  47 flush_cache:
  48         add     r5, r5, r4
  49         mov     r9, r4
  50         mov     r10, r5
  51
  52         movhi   r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
  53         ori     r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
  54 0:      flushd  0(r4)
  55         add     r4, r4, r8
  56         bltu    r4, r5, 0b
  57
  58         mov     r4, r9
  59         mov     r5, r10
  60         movhi   r8, %hi(CONFIG_SYS_ICACHELINE_SIZE)
  61         ori     r8, r8, %lo(CONFIG_SYS_ICACHELINE_SIZE)
  62 1:      flushi  r4
  63         add     r4, r4, r8
  64         bltu    r4, r5, 1b
  65
  66         sync
  67         flushp
  68         ret