From a9c9147eb9b1dba0ce567a41897c7773b4d1b0bc Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 26 Nov 2009 16:19:58 +0000 Subject: ARM: dma-mapping: provide per-cpu type map/unmap functions Signed-off-by: Russell King Tested-By: Santosh Shilimkar --- arch/arm/mm/proc-arm946.S | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'arch/arm/mm/proc-arm946.S') diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index 9a951239c86c..ac0f9ba719d7 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -275,6 +275,30 @@ ENTRY(arm946_dma_flush_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov pc, lr +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(arm946_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq arm946_dma_clean_range + bcs arm946_dma_inv_range + b arm946_dma_flush_range +ENDPROC(arm946_dma_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(arm946_dma_unmap_area) + mov pc, lr +ENDPROC(arm946_dma_unmap_area) + ENTRY(arm946_cache_fns) .long arm946_flush_kern_cache_all .long arm946_flush_user_cache_all @@ -282,6 +306,8 @@ ENTRY(arm946_cache_fns) .long arm946_coherent_kern_range .long arm946_coherent_user_range .long arm946_flush_kern_dcache_area + .long arm946_dma_map_area + .long arm946_dma_unmap_area .long arm946_dma_inv_range .long arm946_dma_clean_range .long arm946_dma_flush_range -- cgit v1.2.3