1 files changed, 32 insertions, 19 deletions

diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index c54fa2cc40e6..45c70312f43b 100644
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -117,17 +117,18 @@ ENTRY(v4wt_coherent_user_range)
         mov     pc, lr
 
 /*
- *      flush_kern_dcache_page(void *page)
+ *      flush_kern_dcache_area(void *addr, size_t size)
  *
  *      Ensure no D cache aliasing occurs, either with itself or
  *      the I cache
  *
- *      - addr  - page aligned address
+ *      - addr  - kernel address
+ *      - size  - region size
  */
-ENTRY(v4wt_flush_kern_dcache_page)
+ENTRY(v4wt_flush_kern_dcache_area)
         mov     r2, #0
         mcr     p15, 0, r2, c7, c5, 0           @ invalidate I cache
-        add     r1, r0, #PAGE_SZ
+        add     r1, r0, r1
         /* fallthrough */
 
 /*
@@ -141,23 +142,12 @@ ENTRY(v4wt_flush_kern_dcache_page)
  *      - 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
 
 /*
@@ -171,6 +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
@@ -180,8 +193,8 @@ ENTRY(v4wt_cache_fns)
         .long   v4wt_flush_user_cache_range
         .long   v4wt_coherent_kern_range
         .long   v4wt_coherent_user_range
-        .long   v4wt_flush_kern_dcache_page
-        .long   v4wt_dma_inv_range
-        .long   v4wt_dma_clean_range
+        .long   v4wt_flush_kern_dcache_area
+        .long   v4wt_dma_map_area
+        .long   v4wt_dma_unmap_area
         .long   v4wt_dma_flush_range
         .size   v4wt_cache_fns, . - v4wt_cache_fns