target/linux/brcm2708/patches-4.19/950-0102-cache-export-clean-and-invalidate.patch

   1 From b0c21c122399013d40679c1d0614bb000a06eed8 Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Fri, 25 Aug 2017 19:18:13 +0100
   4 Subject: [PATCH 102/782] cache: export clean and invalidate
   5
   6 ---
   7  arch/arm/mm/cache-v6.S | 4 ++--
   8  arch/arm/mm/cache-v7.S | 4 ++--
   9  2 files changed, 4 insertions(+), 4 deletions(-)
  10
  11 --- a/arch/arm/mm/cache-v6.S
  12 +++ b/arch/arm/mm/cache-v6.S
  13 @@ -201,7 +201,7 @@ ENTRY(v6_flush_kern_dcache_area)
  14   *     - start   - virtual start address of region
  15   *     - end     - virtual end address of region
  16   */
  17 -v6_dma_inv_range:
  18 +ENTRY(v6_dma_inv_range)
  19  #ifdef CONFIG_DMA_CACHE_RWFO
  20         ldrb    r2, [r0]                        @ read for ownership
  21         strb    r2, [r0]                        @ write for ownership
  22 @@ -246,7 +246,7 @@ v6_dma_inv_range:
  23   *     - start   - virtual start address of region
  24   *     - end     - virtual end address of region
  25   */
  26 -v6_dma_clean_range:
  27 +ENTRY(v6_dma_clean_range)
  28         bic     r0, r0, #D_CACHE_LINE_SIZE - 1
  29  1:
  30  #ifdef CONFIG_DMA_CACHE_RWFO
  31 --- a/arch/arm/mm/cache-v7.S
  32 +++ b/arch/arm/mm/cache-v7.S
  33 @@ -350,7 +350,7 @@ ENDPROC(v7_flush_kern_dcache_area)
  34   *     - start   - virtual start address of region
  35   *     - end     - virtual end address of region
  36   */
  37 -v7_dma_inv_range:
  38 +ENTRY(v7_dma_inv_range)
  39         dcache_line_size r2, r3
  40         sub     r3, r2, #1
  41         tst     r0, r3
  42 @@ -380,7 +380,7 @@ ENDPROC(v7_dma_inv_range)
  43   *     - start   - virtual start address of region
  44   *     - end     - virtual end address of region
  45   */
  46 -v7_dma_clean_range:
  47 +ENTRY(v7_dma_clean_range)
  48         dcache_line_size r2, r3
  49         sub     r3, r2, #1
  50         bic     r0, r0, r3