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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 <rmk+kernel@arm.linux.org.uk> 
Russell King
commited |
4aa806b771 | |
Noted by Jesper Cc: Jesper Juhl <jj@chaosbits.net> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Shuah Khan <shuah.khan@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Andrew Morton
authored and
 Linus Torvalds
commited |
11cd3db01b | |
Signed-off-by: Shuah Khan <shuah.khan@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Shuah Khan
authored and
Linus Torvalds
commited |
be62bc4100 | |
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 <shuah.khan@hp.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Shuah Khan
authored and
 Joerg Roedel
commited |
8d7f62e6a7 | |
See: DMA-API.txt, part Id, DMA_FROM_DEVICE description. Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Michal Miroslaw
authored and
Linus Torvalds
commited |
3f0fb4e85b | |
ARCH_KMALLOC_MINALIGN was renamed to ARCH_DMA_MINALIGN (the commit
FUJITA Tomonori
authored and
Linus Torvalds
commited |
ce00f7feb0 | |
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori
authored and
Linus Torvalds
commited |
c31e74c4c3 | |
Add ARCH_KMALLOC_MINALIGN description in "Platform Issues" section. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: "David S. Miller" <davem@davemloft.net> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori
authored and
Linus Torvalds
commited |
2fd74e25df | |
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 <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori
authored and
Linus Torvalds
commited |
4ae9ca825e | |
Now we have <asm-generic/scatterlist.h>. Architectures should use it instead of inventing the own scatterlist struct. Let's update the description. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori
authored and
Linus Torvalds
commited |
b02de87161 | |
Add the concrete DMA mapping error handling for SCSI drivers on the queuecommand path. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori
authored and
Linus Torvalds
commited |
7cdcc8e476 | |
Adds the concrete DMA mapping error handling for Networking drivers on the transmit path. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori
authored and
Linus Torvalds
commited |
f671be04dc | |
Fix obvious cases of "it's" being used when "its" was meant. Signed-off-by: Francis Galiegue <fgaliegue@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 
Francis Galiegue
authored and
 Jiri Kosina
commited |
a33f32244d | |
This patch renames PCI/PCI-DMA-mapping.txt to DMA-API-HOWTO.txt.
The commit
FUJITA Tomonori
authored and
Linus Torvalds
commited |
5e07c2c730 |
Renamed from Documentation/PCI/PCI-DMA-mapping.txt (Browse further)