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Diffstat (limited to 'arch/arm/mm/cache-v4wt.S')
-rw-r--r--arch/arm/mm/cache-v4wt.S40
1 files changed, 26 insertions, 14 deletions
diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index b3b7410270b..45c70312f43 100644
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -142,23 +142,12 @@ ENTRY(v4wt_flush_kern_dcache_area)
* - start - virtual start address
* - end - virtual end address
*/
-ENTRY(v4wt_dma_inv_range)
+v4wt_dma_inv_range:
bic r0, r0, #CACHE_DLINESIZE - 1
1: mcr p15, 0, r0, c7, c6, 1 @ invalidate D entry
add r0, r0, #CACHE_DLINESIZE
cmp r0, r1
blo 1b
- /* FALLTHROUGH */
-
-/*
- * dma_clean_range(start, end)
- *
- * Clean the specified virtual address range.
- *
- * - start - virtual start address
- * - end - virtual end address
- */
-ENTRY(v4wt_dma_clean_range)
mov pc, lr
/*
@@ -172,6 +161,29 @@ 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
@@ -182,7 +194,7 @@ ENTRY(v4wt_cache_fns)
.long v4wt_coherent_kern_range
.long v4wt_coherent_user_range
.long v4wt_flush_kern_dcache_area
- .long v4wt_dma_inv_range
- .long v4wt_dma_clean_range
+ .long v4wt_dma_map_area
+ .long v4wt_dma_unmap_area
.long v4wt_dma_flush_range
.size v4wt_cache_fns, . - v4wt_cache_fns