linux-toradex.git/Documentation/DMA-API-HOWTO.txt, branch v3.15-rc7

DMA-API: provide a helper to set both DMA and coherent DMA masks

2013-09-17T14:32:37+00:00

Provide a helper to set both the DMA and coherent DMA masks to the
same value - this avoids duplicated code in a number of drivers,
sometimes with buggy error handling, and also allows us identify
which drivers do things differently.

Signed-off-by: Russell King

Documentation/DMA-API-HOWTO.txt: fix typo

2013-02-28T03:10:23+00:00

Noted by Jesper

Cc: Jesper Juhl 
Cc: Konrad Rzeszutek Wilk 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation/DMA-API-HOWTO.txt: minor grammar corrections

2013-02-28T03:10:11+00:00

Signed-off-by: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation DMA-API-HOWTO.txt Add dma mapping error check usage examples

2012-10-24T15:07:43+00:00

Enhance the document to discuss the importance of dma
mapping error checks after dma_map_single() and
dma_map_page() calls. Also added usage examples that include
unmap examples in error paths when dma mapping error is
returned.  Includes correct and incorrect usages to high
light some common mistakes in error paths especially when
dma mapping fails when more than one dma mapping call is
made.

Signed-off-by: Shuah Khan 
Reviewed-by: Konrad Rzeszutek Wilk 
Signed-off-by: Joerg Roedel

Documentation/DMA-API-HOWTO.txt: fix misleading example

2011-07-26T23:49:45+00:00

See: DMA-API.txt, part Id, DMA_FROM_DEVICE description.

Signed-off-by: Michal Miroslaw 
Cc: FUJITA Tomonori 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation: DMA-API-HOWTO.txt: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

2010-08-14T18:56:46+00:00

ARCH_KMALLOC_MINALIGN was renamed to ARCH_DMA_MINALIGN (the commit
a6eb9fe105d5de0053b261148cee56c94b4720ca).

ARCH_DMA_MINALIGN must be defined instead of ARCH_KMALLOC_MINALIGN to
ensure that kmalloc'ed buffer is DMA-safe.

Signed-off-by: FUJITA Tomonori 
Signed-off-by: Linus Torvalds

Documentation: DMA-API-HOWTO.txt: add multiple types of IOMMUs support

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

Signed-off-by: FUJITA Tomonori 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation/DMA-API-HOWTO: add ARCH_KMALLOC_MINALIGN description

2010-05-27T16:12:53+00:00

Add ARCH_KMALLOC_MINALIGN description in "Platform Issues" section.

Signed-off-by: FUJITA Tomonori 
Cc: "David S. Miller" 
Cc: Matt Mackall 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation: move the error handling to the better place in DMA-API-HOWTO

2010-05-27T16:12:53+00:00

Handing DMA mapping errors is essential.  Let's put it in the more
appropriate place rather than the end of the doc.

Signed-off-by: FUJITA Tomonori 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation: update scatterlist struct description in DMA-API-HOWTO

2010-05-27T16:12:53+00:00

Now we have .  Architectures should use it
instead of inventing the own scatterlist struct.  Let's update the
description.

Signed-off-by: FUJITA Tomonori 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds