linux-stable.git/arch/hexagon/include/asm, branch linux-3.4.y

Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

2012-04-05T00:13:43+00:00

Pull DMA mapping branch from Marek Szyprowski:
 "Short summary for the whole series:

  A few limitations have been identified in the current dma-mapping
  design and its implementations for various architectures.  There exist
  more than one function for allocating and freeing the buffers:
  currently these 3 are used dma_{alloc, free}_coherent,
  dma_{alloc,free}_writecombine, dma_{alloc,free}_noncoherent.

  For most of the systems these calls are almost equivalent and can be
  interchanged.  For others, especially the truly non-coherent ones
  (like ARM), the difference can be easily noticed in overall driver
  performance.  Sadly not all architectures provide implementations for
  all of them, so the drivers might need to be adapted and cannot be
  easily shared between different architectures.  The provided patches
  unify all these functions and hide the differences under the already
  existing dma attributes concept.  The thread with more references is
  available here:

    http://www.spinics.net/lists/linux-sh/msg09777.html

  These patches are also a prerequisite for unifying DMA-mapping
  implementation on ARM architecture with the common one provided by
  dma_map_ops structure and extending it with IOMMU support.  More
  information is available in the following thread:

    http://thread.gmane.org/gmane.linux.kernel.cross-arch/12819

  More works on dma-mapping framework are planned, especially in the
  area of buffer sharing and managing the shared mappings (together with
  the recently introduced dma_buf interface: commit d15bd7ee445d
  "dma-buf: Introduce dma buffer sharing mechanism").

  The patches in the current set introduce a new alloc/free methods
  (with support for memory attributes) in dma_map_ops structure, which
  will later replace dma_alloc_coherent and dma_alloc_writecombine
  functions."

People finally started piping up with support for merging this, so I'm
merging it as the last of the pending stuff from the merge window.
Looks like pohmelfs is going to wait for 3.5 and more external support
for merging.

* 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  common: DMA-mapping: add NON-CONSISTENT attribute
  common: DMA-mapping: add WRITE_COMBINE attribute
  common: dma-mapping: introduce mmap method
  common: dma-mapping: remove old alloc_coherent and free_coherent methods
  Hexagon: adapt for dma_map_ops changes
  Unicore32: adapt for dma_map_ops changes
  Microblaze: adapt for dma_map_ops changes
  SH: adapt for dma_map_ops changes
  Alpha: adapt for dma_map_ops changes
  SPARC: adapt for dma_map_ops changes
  PowerPC: adapt for dma_map_ops changes
  MIPS: adapt for dma_map_ops changes
  X86 & IA64: adapt for dma_map_ops changes
  common: dma-mapping: introduce generic alloc() and free() methods

Delete all instances of asm/system.h

2012-03-28T17:30:03+00:00

Delete all instances of asm/system.h as they should be redundant by this
point.

Signed-off-by: David Howells

Disintegrate asm/system.h for Hexagon

2012-03-28T17:30:02+00:00

Disintegrate asm/system.h for Hexagon.  Not compiled.

Signed-off-by: David Howells 
Acked-by: Richard Kuo 
cc: linux-hexagon@vger.kernel.org

Hexagon: adapt for dma_map_ops changes

2012-03-28T14:36:40+00:00

Adapt core Hexagon architecture code for dma_map_ops changes: replace
alloc/free_coherent with generic alloc/free methods.

Signed-off-by: Marek Szyprowski 
Acked-by: Kyungmin Park 
Reviewed-by: Arnd Bergmann 
Acked-by: Richard Kuo

perf, arch: Rework perf_event_index()

2011-12-21T10:01:07+00:00

Put the logic to compute the event index into a per pmu method. This
is required because the x86 rules are weird and wonderful and don't
match the capabilities of the current scheme.

AFAIK only powerpc actually has a usable userspace read of the PMCs
but I'm not at all sure anybody actually used that.

ARM is restored to the default since it currently does not support
userspace access at all. And all software events are provided with a
method that reports their index as 0 (disabled).

Signed-off-by: Peter Zijlstra 
Cc: Michael Cree 
Cc: Will Deacon 
Cc: Deng-Cheng Zhu 
Cc: Anton Blanchard 
Cc: Eric B Munson 
Cc: Heiko Carstens 
Cc: Paul Mundt 
Cc: David S. Miller 
Cc: Richard Kuo 
Cc: Stephane Eranian 
Cc: Arun Sharma 
Link: http://lkml.kernel.org/n/tip-dfydxodki16lylkt3gl2j7cw@git.kernel.org
Signed-off-by: Ingo Molnar

Hexagon: kgdb support files

2011-11-01T14:34:21+00:00

Signed-off-by: Linas Vepstas 
Acked-by: Arnd Bergmann 
Signed-off-by: Richard Kuo 
Signed-off-by: Linus Torvalds

Hexagon: Add page-fault support.

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Signed-off-by: Linas Vepstas 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Add page table header files & etc.

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Signed-off-by: Linas Vepstas 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Provide DMA implementation

2011-11-01T14:34:20+00:00

Signed-off-by: Richard Kuo 
Signed-off-by: Linas Vepstas 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds

Hexagon: Implement basic TLB management routines for Hexagon.

2011-11-01T14:34:20+00:00

Mostly all stubs, as the TLB is managed by the hypervisor.

Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds