ARM: dma-mapping: fix for speculative prefetching

[pandora-kernel.git] / arch / arm / mm / cache-v7.S

diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index b1cd0fd..bcd64f2 100644 (file)
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -279,10 +279,9 @@ ENDPROC(v7_dma_flush_range)
  */
 ENTRY(v7_dma_map_area)
        add     r1, r1, r0
-       cmp     r2, #DMA_TO_DEVICE
-       beq     v7_dma_clean_range
-       bcs     v7_dma_inv_range
-       b       v7_dma_flush_range
+       teq     r2, #DMA_FROM_DEVICE
+       beq     v7_dma_inv_range
+       b       v7_dma_clean_range
 ENDPROC(v7_dma_map_area)
 
 /*
@@ -292,6 +291,9 @@ ENDPROC(v7_dma_map_area)
  *     - dir   - DMA direction
  */
 ENTRY(v7_dma_unmap_area)
+       add     r1, r1, r0
+       teq     r2, #DMA_TO_DEVICE
+       bne     v7_dma_inv_range
        mov     pc, lr
 ENDPROC(v7_dma_unmap_area)