ARM: dma-mapping: provide per-cpu type map/unmap functions

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mm / cache-v7.S

diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 9073db849fb46a75f08c18c1ae9790614696e377..e30d8bc6718228e368522a16fea7af36c17a7b73 100644 (file)
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -271,6 +271,30 @@ ENTRY(v7_dma_flush_range)
        mov     pc, lr
 ENDPROC(v7_dma_flush_range)
 
+/*
+ *     dma_map_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+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
+ENDPROC(v7_dma_map_area)
+
+/*
+ *     dma_unmap_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(v7_dma_unmap_area)
+       mov     pc, lr
+ENDPROC(v7_dma_unmap_area)
+
        __INITDATA
 
        .type   v7_cache_fns, #object
@@ -281,6 +305,8 @@ ENTRY(v7_cache_fns)
        .long   v7_coherent_kern_range
        .long   v7_coherent_user_range
        .long   v7_flush_kern_dcache_area
+       .long   v7_dma_map_area
+       .long   v7_dma_unmap_area
        .long   v7_dma_inv_range
        .long   v7_dma_clean_range
        .long   v7_dma_flush_range