Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / arch / arm / mm / proc-arm1020.S

diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 8012e24..72507c6 100644 (file)
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -265,7 +265,7 @@ ENTRY(arm1020_flush_kern_dcache_area)
  *
  * (same as v4wb)
  */
-ENTRY(arm1020_dma_inv_range)
+arm1020_dma_inv_range:
        mov     ip, #0
 #ifndef CONFIG_CPU_DCACHE_DISABLE
        tst     r0, #CACHE_DLINESIZE - 1
@@ -295,7 +295,7 @@ ENTRY(arm1020_dma_inv_range)
  *
  * (same as v4wb)
  */
-ENTRY(arm1020_dma_clean_range)
+arm1020_dma_clean_range:
        mov     ip, #0
 #ifndef CONFIG_CPU_DCACHE_DISABLE
        bic     r0, r0, #CACHE_DLINESIZE - 1
@@ -330,6 +330,30 @@ ENTRY(arm1020_dma_flush_range)
        mcr     p15, 0, ip, c7, c10, 4          @ drain WB
        mov     pc, lr
 
+/*
+ *     dma_map_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(arm1020_dma_map_area)
+       add     r1, r1, r0
+       cmp     r2, #DMA_TO_DEVICE
+       beq     arm1020_dma_clean_range
+       bcs     arm1020_dma_inv_range
+       b       arm1020_dma_flush_range
+ENDPROC(arm1020_dma_map_area)
+
+/*
+ *     dma_unmap_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(arm1020_dma_unmap_area)
+       mov     pc, lr
+ENDPROC(arm1020_dma_unmap_area)
+
 ENTRY(arm1020_cache_fns)
        .long   arm1020_flush_kern_cache_all
        .long   arm1020_flush_user_cache_all
@@ -337,8 +361,8 @@ ENTRY(arm1020_cache_fns)
        .long   arm1020_coherent_kern_range
        .long   arm1020_coherent_user_range
        .long   arm1020_flush_kern_dcache_area
-       .long   arm1020_dma_inv_range
-       .long   arm1020_dma_clean_range
+       .long   arm1020_dma_map_area
+       .long   arm1020_dma_unmap_area
        .long   arm1020_dma_flush_range
 
        .align  5