BMC/Intel-BMC/linux.git/arch/sh/include/asm/dma-mapping.h, branch dev

sh: dma_debug: add debug_dma_mapping_error support

2012-11-28T14:29:00+00:00

Add dma-debug interface debug_dma_mapping_error() to debug drivers that fail to check dma mapping errors on addresses returned by dma_map_single() and dma_map_page() interfaces. Signed-off-by: Shuah Khan Signed-off-by: Joerg Roedel

SH: adapt for dma_map_ops changes

2012-03-28T14:36:37+00:00

Adapt core SH architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Kyungmin Park Signed-off-by: Marek Szyprowski Reviewed-by: Arnd Bergmann Acked-by: Paul Mundt

dma-mapping: remove dma_is_consistent API

2010-08-11T15:59:21+00:00

Architectures implement dma_is_consistent() in different ways (some misinterpret the definition of API in DMA-API.txt). So it hasn't been so useful for drivers. We have only one user of the API in tree. Unlikely out-of-tree drivers use the API. Even if we fix dma_is_consistent() in some architectures, it doesn't look useful at all. It was invented long ago for some old systems that can't allocate coherent memory at all. It's better to export only APIs that are definitely necessary for drivers. Let's remove this API. Signed-off-by: FUJITA Tomonori Cc: James Bottomley Reviewed-by: Konrad Rzeszutek Wilk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

dma-mapping: unify dma_get_cache_alignment implementations

2010-08-11T15:59:21+00:00

dma_get_cache_alignment returns the minimum DMA alignment. Architectures defines it as ARCH_DMA_MINALIGN (formally ARCH_KMALLOC_MINALIGN). So we can unify dma_get_cache_alignment implementations. Note that some architectures implement dma_get_cache_alignment wrongly. dma_get_cache_alignment() should return the minimum DMA alignment. So fully-coherent architectures should return 1. This patch also fixes this issue. Signed-off-by: FUJITA Tomonori Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

sh: Quiet noisy coherent DMA unmapping on R2D.

2010-01-28T06:55:37+00:00

IRQs are re-enabled at a later stage when doing the unmapping on R2D via the sm501 USB coherent DMA, resulting in the irqs_disabled() check producing considerable noise for this configuration. Just kill off the check, which was blindly copied from x86 anyways. Signed-off-by: Paul Mundt

sh: Fix up dma_is_consistent().

2009-10-27T01:41:58+00:00

This fixes up the dma_is_consistent() definition for the various coherence options. Signed-off-by: Paul Mundt

sh: Add dma-mapping support for dma_alloc/free_coherent() overrides.

2009-10-26T00:50:51+00:00

This moves the current dma_alloc/free_coherent() calls to a generic variant and plugs them in for the nommu default. Other variants can override the defaults in the dma mapping ops directly. Signed-off-by: Paul Mundt

sh: Convert to asm-generic/dma-mapping-common.h

2009-10-20T03:55:56+00:00

This converts the old DMA mapping support to the new generic dma-mapping-common.h abstraction. Signed-off-by: Paul Mundt

sh: Fix up more dma-mapping fallout.

2009-06-23T08:36:23+00:00

commit dbe6f1869188b6e04e38aa861dd198befb08bcd7 ("dma-mapping: mark dma_sync_single and dma_sync_sg as deprecated" conveniently broke every single SH build. In the future it would be great if people could at least bother figuring out how to use grep. Signed-off-by: Paul Mundt

sh: Add support for DMA API debugging.

2009-04-09T17:36:54+00:00

This wires up support for the generic DMA API debugging. Signed-off-by: Paul Mundt