kernel/git/stable/linux-stable.git/arch/microblaze/include, branch linux-2.6.34.y

microblaze: fix get_user/put_user side-effects

2010-05-13T07:21:14+00:00

The Microblaze implementations of get_user() and (MMU) put_user() evaluate the address argument more than once. This causes unexpected side-effects for invocations that include increment operators, i.e. get_user(foo, bar++). This patch also removes the distinction between MMU and noMMU put_user(). Without the patch: $ echo 1234567890 > /proc/sys/kernel/core_pattern $ cat /proc/sys/kernel/core_pattern 12345 Signed-off-by: Steven J. Magnani

microblaze: Define correct L1_CACHE_SHIFT value

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

Microblaze cacheline length is configurable and current cpu uses two cacheline length 4 and 8. We are taking conservative maximum value to be sure that cacheline alignment is satisfied for all cases. Here is the calculation for cacheline lenght 8 32bit=4Byte values which is corresponding with SHIFT 5. 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: Fix consistent code

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

This patch fix consistent code which had problems with consistent_free function. I am not sure if we need to call flush_tlb_all after it but it keeps tlbs synced. I added noMMU and MMU version together. Uncached shadow feature is not tested. Signed-off-by: Michal Simek

microblaze: pci-dma: use include/linux/dma-mapping.h

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

Based on af407c6db16aa9ca63559076dbe620220a822580 and f41b177157718abe9a93868bb76e47d4a6f3681d 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: Add isa_dma_bridge_buggy to dma.h

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

It is necessary for several drivers. Signed-off-by: Michal Simek

microblaze: Remove ancient code

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

I found several function which we don't use that's why I am removing them. Signed-off-by: Michal Simek

microblaze: Quiet section mismatch warnings for MMU version

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

Remove section mismatch - based on ppc aproach. WARNING: vmlinux.o(.text+0x64834): Section mismatch in reference from the function __pte_alloc_kernel() to the function .init.text:early_get_page() The function __pte_alloc_kernel() references the function __init early_get_page(). This is often because __pte_alloc_kernel lacks a __init annotation or the annotation of early_get_page is wrong. Signed-off-by: Michal Simek