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

[pandora-kernel.git] / arch / arm / mm / cache-v4wt.S

diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index b3b7410..3d8dad5 100644 (file)
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -172,6 +172,29 @@ ENTRY(v4wt_dma_clean_range)
        .globl  v4wt_dma_flush_range
        .equ    v4wt_dma_flush_range, v4wt_dma_inv_range
 
+/*
+ *     dma_unmap_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(v4wt_dma_unmap_area)
+       add     r1, r1, r0
+       teq     r2, #DMA_TO_DEVICE
+       bne     v4wt_dma_inv_range
+       /* FALLTHROUGH */
+
+/*
+ *     dma_map_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(v4wt_dma_map_area)
+       mov     pc, lr
+ENDPROC(v4wt_dma_unmap_area)
+ENDPROC(v4wt_dma_map_area)
+
        __INITDATA
 
        .type   v4wt_cache_fns, #object
@@ -182,6 +205,8 @@ ENTRY(v4wt_cache_fns)
        .long   v4wt_coherent_kern_range
        .long   v4wt_coherent_user_range
        .long   v4wt_flush_kern_dcache_area
+       .long   v4wt_dma_map_area
+       .long   v4wt_dma_unmap_area
        .long   v4wt_dma_inv_range
        .long   v4wt_dma_clean_range
        .long   v4wt_dma_flush_range