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

[safe/jmp/linux-2.6] / arch / arm / mm / proc-mohawk.S

diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
index 9674d36..55b7fbe 100644 (file)
--- a/arch/arm/mm/proc-mohawk.S
+++ b/arch/arm/mm/proc-mohawk.S
@@ -268,6 +268,30 @@ ENTRY(mohawk_dma_flush_range)
        mcr     p15, 0, r0, 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(mohawk_dma_map_area)
+       add     r1, r1, r0
+       cmp     r2, #DMA_TO_DEVICE
+       beq     mohawk_dma_clean_range
+       bcs     mohawk_dma_inv_range
+       b       mohawk_dma_flush_range
+ENDPROC(mohawk_dma_map_area)
+
+/*
+ *     dma_unmap_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(mohawk_dma_unmap_area)
+       mov     pc, lr
+ENDPROC(mohawk_dma_unmap_area)
+
 ENTRY(mohawk_cache_fns)
        .long   mohawk_flush_kern_cache_all
        .long   mohawk_flush_user_cache_all
@@ -275,6 +299,8 @@ ENTRY(mohawk_cache_fns)
        .long   mohawk_coherent_kern_range
        .long   mohawk_coherent_user_range
        .long   mohawk_flush_kern_dcache_area
+       .long   mohawk_dma_map_area
+       .long   mohawk_dma_unmap_area
        .long   mohawk_dma_inv_range
        .long   mohawk_dma_clean_range
        .long   mohawk_dma_flush_range