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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-11-26 11:19:58 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-02-15 10:22:20 -0500
commita9c9147eb9b1dba0ce567a41897c7773b4d1b0bc (patch)
tree178938c909f4717c2e599d6f3de954d7ee8a7f21 /arch/arm/mm/cache-fa.S
parent93f1d629e22b08642eb713ad96ac2cb9ade0641c (diff)
ARM: dma-mapping: provide per-cpu type map/unmap functions
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-By: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/mm/cache-fa.S')
-rw-r--r--arch/arm/mm/cache-fa.S26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S
index a89444a3c016..8ebffdd6fcff 100644
--- a/arch/arm/mm/cache-fa.S
+++ b/arch/arm/mm/cache-fa.S
@@ -205,6 +205,30 @@ ENTRY(fa_dma_flush_range)
205 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer 205 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
206 mov pc, lr 206 mov pc, lr
207 207
208/*
209 * dma_map_area(start, size, dir)
210 * - start - kernel virtual start address
211 * - size - size of region
212 * - dir - DMA direction
213 */
214ENTRY(fa_dma_map_area)
215 add r1, r1, r0
216 cmp r2, #DMA_TO_DEVICE
217 beq fa_dma_clean_range
218 bcs fa_dma_inv_range
219 b fa_dma_flush_range
220ENDPROC(fa_dma_map_area)
221
222/*
223 * dma_unmap_area(start, size, dir)
224 * - start - kernel virtual start address
225 * - size - size of region
226 * - dir - DMA direction
227 */
228ENTRY(fa_dma_unmap_area)
229 mov pc, lr
230ENDPROC(fa_dma_unmap_area)
231
208 __INITDATA 232 __INITDATA
209 233
210 .type fa_cache_fns, #object 234 .type fa_cache_fns, #object
@@ -215,6 +239,8 @@ ENTRY(fa_cache_fns)
215 .long fa_coherent_kern_range 239 .long fa_coherent_kern_range
216 .long fa_coherent_user_range 240 .long fa_coherent_user_range
217 .long fa_flush_kern_dcache_area 241 .long fa_flush_kern_dcache_area
242 .long fa_dma_map_area
243 .long fa_dma_unmap_area
218 .long fa_dma_inv_range 244 .long fa_dma_inv_range
219 .long fa_dma_clean_range 245 .long fa_dma_clean_range
220 .long fa_dma_flush_range 246 .long fa_dma_flush_range