linux-toradex.git/arch/ia64/include/asm/dma-mapping.h, branch v4.1.22

ia64: dma_debug: add debug_dma_mapping_error support

2012-11-28T14:28:58+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

X86 & IA64: adapt for dma_map_ops changes

2012-03-28T14:36:31+00:00

Adapt core x86 and IA64 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 
[removed swiotlb related changes and replaced it with wrappers,
 merged with IA64 patch to avoid inter-patch dependences in intel-iommu code]
Signed-off-by: Marek Szyprowski 
Reviewed-by: Arnd Bergmann 
Acked-by: Tony Luck

[IA64] Add DMA_ERROR_CODE define.

2011-01-11T19:55:06+00:00

This piggybacks on git commit 8fd524b355daef0945692227e726fb444cebcd4f
("x86: Kill bad_dma_address variable") wherein we use now the
dma_map_ops->mapping_error to check for errors and the standard
check is against DMA_ERROR_CODE. Introduce it to the IA64 world.

CC: FUJITA Tomonori 
CC: Jesse Barnes 
Signed-off-by: Konrad Rzeszutek Wilk 
Signed-off-by: Tony Luck

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

dma-mapping: fix off-by-one error in dma_capable()

2009-12-16T15:20:12+00:00

dma_mask is, when interpreted as address, the last valid byte, and hence
comparison msut also be done using the last valid of the buffer in
question.

Also fix the open-coded instances in lib/swiotlb.c.

Signed-off-by: Jan Beulich 
Cc: FUJITA Tomonori 
Cc: Becky Bruce 
Cc: "Luck, Tony" 
Cc: Benjamin Herrenschmidt 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

IA64: Remove NULL flush_write_buffers

2009-08-10T07:34:58+00:00

flush_write_buffers() in dma-mapping-common.h was removed so we
can remove NULL flush_write_buffers() in IA64.

Signed-off-by: FUJITA Tomonori 
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: davem@davemloft.net
LKML-Reference: <1249872797-1314-3-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar

x86, IA64, powerpc: add phys_to_dma() and dma_to_phys()

2009-07-28T05:19:20+00:00

This adds two functions, phys_to_dma() and dma_to_phys() to x86, IA64
and powerpc. swiotlb uses them. phys_to_dma() converts a physical
address to a dma address. dma_to_phys() does the opposite.

Signed-off-by: FUJITA Tomonori 
Acked-by: Becky Bruce

ia64: add dma_capable() to replace is_buffer_dma_capable()

2009-07-28T05:19:19+00:00

dma_capable() eventually replaces is_buffer_dma_capable(), which tells
if a memory area is dma-capable or not. The problem of
is_buffer_dma_capable() is that it doesn't take a pointer to struct
device so it doesn't work for POWERPC.

Signed-off-by: FUJITA Tomonori

dma-mapping: ia64: add CONFIG_DMA_API_DEBUG support

2009-06-18T20:03:58+00:00

Signed-off-by: FUJITA Tomonori 
Acked-by: Joerg Roedel 
Cc: Ingo Molnar 
Acked-by: "Luck, Tony" 
Cc: Arnd Bergmann 
Cc: James Bottomley 
Cc; "David S. Miller" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds