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

[mv-sheeva.git] / arch / arm / mm / proc-xscale.S

diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 93df47265f2dfda487fcb7c11425d14b0a9ea02f..a7999f94bf276a1fc197de4dcb06679a836240c0 100644 (file)
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -363,6 +363,43 @@ ENTRY(xscale_dma_flush_range)
        mcr     p15, 0, r0, c7, c10, 4          @ Drain Write (& Fill) Buffer
        mov     pc, lr
 
+/*
+ *     dma_map_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(xscale_dma_map_area)
+       add     r1, r1, r0
+       cmp     r2, #DMA_TO_DEVICE
+       beq     xscale_dma_clean_range
+       bcs     xscale_dma_inv_range
+       b       xscale_dma_flush_range
+ENDPROC(xscale_dma_map_area)
+
+/*
+ *     dma_map_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(xscale_dma_a0_map_area)
+       add     r1, r1, r0
+       teq     r2, #DMA_TO_DEVICE
+       beq     xscale_dma_clean_range
+       b       xscale_dma_flush_range
+ENDPROC(xscsale_dma_a0_map_area)
+
+/*
+ *     dma_unmap_area(start, size, dir)
+ *     - start - kernel virtual start address
+ *     - size  - size of region
+ *     - dir   - DMA direction
+ */
+ENTRY(xscale_dma_unmap_area)
+       mov     pc, lr
+ENDPROC(xscale_dma_unmap_area)
+
 ENTRY(xscale_cache_fns)
        .long   xscale_flush_kern_cache_all
        .long   xscale_flush_user_cache_all
@@ -370,6 +407,8 @@ ENTRY(xscale_cache_fns)
        .long   xscale_coherent_kern_range
        .long   xscale_coherent_user_range
        .long   xscale_flush_kern_dcache_area
+       .long   xscale_dma_map_area
+       .long   xscale_dma_unmap_area
        .long   xscale_dma_inv_range
        .long   xscale_dma_clean_range
        .long   xscale_dma_flush_range
@@ -394,6 +433,8 @@ ENTRY(xscale_80200_A0_A1_cache_fns)
        .long   xscale_coherent_kern_range
        .long   xscale_coherent_user_range
        .long   xscale_flush_kern_dcache_area
+       .long   xscale_dma_a0_map_area
+       .long   xscale_dma_unmap_area
        .long   xscale_dma_flush_range
        .long   xscale_dma_clean_range
        .long   xscale_dma_flush_range