linux.git/arch/microblaze/include/asm/dma-mapping.h, branch v3.2

Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

2011-10-31T23:13:44+00:00

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW usage
  microblaze: Use delay slot in __strnlen_user, __strncpy_user
  microblaze: Remove NET_IP_ALIGN from system.h
  microblaze: Add __ucmpdi2() helper function
  microblaze: Raise SIGFPE/FPE_INTDIV for div by zero
  microblaze: Switch ELF_ARCH code to 189
  microblaze: Added DMA sync operations
  microblaze: Moved __dma_sync() to dma-mapping.h
  microblaze: Add PVR for Microblaze v8.20.a
  microblaze: Fix access_ok macro
  microblaze: Add loop unrolling for PAGE in copy_tofrom_user
  microblaze: Simplify logic for unaligned byte copying
  microblaze: Change label names - copy_tofrom_user
  microblaze: Separate fixup section definition
  microblaze: Change label name in copy_tofrom_user
  microblaze: Clear top bit from cnt32_to_63

microblaze: Moved __dma_sync() to dma-mapping.h

2011-10-14T10:24:29+00:00

__dma_sync_page() was replaced by __dma_sync(), and parameters of calls to
the new function were adjusted to match __dma_sync()'s format.

Signed-off-by: Eli Billauer 
Signed-off-by: Michal Simek

doc: fix broken references

2011-09-27T16:08:04+00:00

There are numerous broken references to Documentation files (in other
Documentation files, in comments, etc.). These broken references are
caused by typo's in the references, and by renames or removals of the
Documentation files. Some broken references are simply odd.

Fix these broken references, sometimes by dropping the irrelevant text
they were part of.

Signed-off-by: Paul Bolle 
Signed-off-by: Jiri Kosina

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

microblaze: remove unused HAVE_ARCH_PCI_SET_DMA_MASK

2010-08-04T08:22:37+00:00

HAVE_ARCH_PCI_SET_DMA_MASK was removed in 2.6.34 (no architecture has
the own implementation of pci_set_dma_mask).

Signed-off-by: FUJITA Tomonori 
Signed-off-by: Michal Simek

microblaze: Implement __dma_sync_page

2010-03-11T12:58:11+00:00

There is necessary to do some cache handling for dma operations.

Signed-off-by: Michal Simek

microblaze: Support DMA

2010-03-11T12:56:29+00:00

Add DMA support for Microblaze. There are some part of this new feature:
1. Basic DMA support
2. Enable DMA debug option
3. Setup notifier

Ad 1. dma-mapping come from powerpc and x86 version and it is based on
generic dma-mapping-common.h

Ad 2. DMA support debug features which is used in generic file.
For more information please look at Documentation/DMA-API.txt

Ad 3. notifier is very important to setup dma_ops. Without this part
for example ll_temac driver failed because there are no setup dma operations.

Signed-off-by: Michal Simek

microblaze: use generic dma-mapping-broken.h

2009-05-21T13:56:07+00:00

Microblaze does not support the Linux DMA mapping API
at this point, so disable CONFIG_NO_DMA. This lets
us use the generic dma-mapping-broken.h implementation
instead of providing a different copy.

Any drivers that try to use DMA mapping now get
omitted from Kconfig or produce a link error, rather
than failing silently at run time.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Michal Simek

microblaze_v8: dma support

2009-03-27T13:25:35+00:00

Reviewed-by: Ingo Molnar 
Acked-by: John Linn 
Acked-by: Stephen Neuendorffer 
Acked-by: John Williams 
Signed-off-by: Michal Simek