linux-toradex.git/arch/microblaze/include/asm/page.h, branch v3.2.20

microblaze: Removing dead CONTIGUOUS_PAGE_ALLOC config option

2010-10-21T05:51:31+00:00

CONFIG_CONTIGUOUS_PAGE_ALLOC doesn't exist in Kconfig, therefore removing
all references to it from the source.

Signed-off-by: Christian Dietrich 
Signed-off-by: Michal Simek

dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

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

Now each architecture has the own dma_get_cache_alignment implementation.

dma_get_cache_alignment returns the minimum DMA alignment.  Architectures
define it as ARCH_KMALLOC_MINALIGN (it's used to make sure that malloc'ed
buffer is DMA-safe; the buffer doesn't share a cache with the others).  So
we can unify dma_get_cache_alignment implementations.

This patch:

dma_get_cache_alignment() needs to know if an architecture defines
ARCH_KMALLOC_MINALIGN or not (needs to know if architecture has DMA
alignment restriction).  However, slab.h define ARCH_KMALLOC_MINALIGN if
architectures doesn't define it.

Let's rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN.
ARCH_KMALLOC_MINALIGN is used only in the internals of slab/slob/slub
(except for crypto).

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

Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

2010-08-05T22:57:35+00:00

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits)
  of/platform: Register of_platform_drivers with an "of:" prefix
  of/address: Clean up function declarations
  of/spi: call of_register_spi_devices() from spi core code
  of: Provide default of_node_to_nid() implementation.
  of/device: Make of_device_make_bus_id() usable by other code.
  of/irq: Fix endian issues in parsing interrupt specifiers
  of: Fix phandle endian issues
  of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string
  of: remove of_default_bus_ids
  of: make of_find_device_by_node generic
  microblaze: remove references to of_device and to_of_device
  sparc: remove references to of_device and to_of_device
  powerpc: remove references to of_device and to_of_device
  of/device: Replace of_device with platform_device in includes and core code
  of/device: Protect against binding of_platform_drivers to non-OF devices
  of: remove asm/of_device.h
  of: remove asm/of_platform.h
  of/platform: remove all of_bus_type and of_platform_bus_type references
  of: Merge of_platform_bus_type with platform_bus_type
  drivercore/of: Add OF style matching to platform bus
  ...

Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just
some obj-y removals by the devicetree branch, while the microblaze
updates added a new file.

microblaze: Allow PAGE_SIZE configuration

2010-08-04T08:22:34+00:00

Allow developer to configure memory page size at compile time.
Larger pages can improve performance on some workloads.

Based on PowerPC code.

Signed-off-by: Steven J. Magnani 
Signed-off-by: Michal Simek

of/flattree: Use common ALIGN() macro instead of arch specific _ALIGN

2010-07-15T05:55:23+00:00

There's no reason to use the powerpc-specific _ALIGN macro in the fdt
code.  Replace it with ALIGN() from kernel.h

Signed-off-by: Grant Likely 
Acked-By: Jeremy Kerr 
Acked-by: Benjamin Herrenschmidt

microblaze: Define ARCH_SLAB_MINALIGN to fix slab crash

2010-06-09T14:20:43+00:00

The commit "mm: Move ARCH_SLAB_MINALIGN and
ARCH_KMALLOC_MINALIGN to "
1f0ce8b3dd667dca7 which moved the ARCH_SLAB_MINALIGN
default into the global header broke FLAT for Microblaze.

Error message:
slab error in verify_redzone_free(): cache `idr_layer_cache':
memory outside object was overwritten

Signed-off-by: Michal Simek

microblaze: Fix kmalloc alignment on non-coherent DMA platforms

2010-05-06T09:21:59+00:00

Based on PowerPC patche 52142e756e9bf6485d3d53596e8aff2e816a7253

PowerPC description:
On platforms doing non-coherent DMA (4xx, 8xx, ...), it's important
that the kmalloc minimum alignment is set to the cache line size, to
avoid sharing cache lines between different objects, so that DMA to
one of the objects doesn't corrupt the other.

Signed-off-by: Michal Simek

microblaze: page.h: Remove get_user_page and free_user_page

2010-05-06T09:21:59+00:00

Remove ancient macros which are here from Linux-2.4

Signed-off-by: Michal Simek

microblaze: Remove "cache" optimized copy_page function

2010-05-06T09:21:58+00:00

Current implementation doesn't handle dcache_line_length
correctly that's why is better to use generic memcpy.

Cache optimized function could be good way howto improve
performance but must be based on benchmarking not blind
function like this.

Signed-off-by: Michal Simek

microblaze: Preliminary support for dma drivers

2010-03-11T13:08:33+00:00

I found several problems for ll_temac driver and on system with WB.
This early fix should fix it. I will clean this patch before I will add
it to mainline

Signed-off-by: Michal Simek