linux-toradex.git/include/asm-alpha, branch v2.6.16.61

missing dma_sync_single_range_for_{cpu,device} on alpha

2008-01-06T18:38:18+00:00

no-op as all dma_sync_... there.

Adrian Bunk:
Backported to 2.6.16.

Signed-off-by: Al Viro 
Signed-off-by: Adrian Bunk

include/asm-alpha/io_trivial.h build fixes

2008-01-06T18:27:32+00:00

This patch cherry picks the following from
commit 9548b209a37397f3036aa5bd3d5b4d3b725aa1:

fix build failure with gcc-4.2.x: fix up casts in cia_io* routines to avoid
warnings ('discards qualifiers from pointer target type'), which are
failures, thanks to -Werror;

Signed-off-by: Ivan Kokshaysky 
Signed-off-by: Adrian Bunk

alpha: fix epoll syscall enumerations

2007-10-18T19:30:46+00:00

We went and named them __NR_sys_foo instead of __NR_foo.

It may be too late to change this, but we can at least add the proper names
now.

Signed-off-by: Mike Frysinger 
Signed-off-by: Adrian Bunk

[PATCH] add asm-generic/mman.h

2006-02-15T23:32:22+00:00

Make new MADV_REMOVE, MADV_DONTFORK, MADV_DOFORK consistent across all
arches.  The idea is to make it possible to use them portably even before
distros include them in libc headers.

Move common flags to asm-generic/mman.h

Signed-off-by: Michael S. Tsirkin 
Cc: Roland Dreier 
Cc: Badari Pulavarty 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] madvise MADV_DONTFORK/MADV_DOFORK

2006-02-15T00:09:34+00:00

Currently, copy-on-write may change the physical address of a page even if the
user requested that the page is pinned in memory (either by mlock or by
get_user_pages).  This happens if the process forks meanwhile, and the parent
writes to that page.  As a result, the page is orphaned: in case of
get_user_pages, the application will never see any data hardware DMA's into
this page after the COW.  In case of mlock'd memory, the parent is not getting
the realtime/security benefits of mlock.

In particular, this affects the Infiniband modules which do DMA from and into
user pages all the time.

This patch adds madvise options to control whether memory range is inherited
across fork.  Useful e.g.  for when hardware is doing DMA from/into these
pages.  Could also be useful to an application wanting to speed up its forks
by cutting large areas out of consideration.

Signed-off-by: Michael S. Tsirkin 
Acked-by: Hugh Dickins 
Cc: Michael Kerrisk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] __cmpxchg() must really always be inlined on alpha

2006-02-08T00:12:31+00:00

With the latest 2.6.15 kernel builds for alpha on Debian, we ran into a
problem with undefined references to __cmpxchg_called_with_bad_pointer() in
a couple of kernel modules (xfs.ko and drm.ko; see
http://bugs.debian.org/347556).

It looks like people have been trying to out-clever each other wrt the
definition of "inline" on this architecture :), with the result that
__cmpxchg(), which must be inlined so the compiler can see its argument is
const, is not guaranteed to be inlined.  Indeed, it was not being inlined
when building with -Os.

The attached patch fixes the issue by adding an
__attribute__((always_inline)) explicitly to the definition of __cmpxchg()
instead of relying on redefines of "inline" elsewhere to make this happen.

Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] alpha: dma-mapping.h: add "struct scatterlist;"

2006-02-01T16:53:11+00:00

On alpha-jensen:

  CC      drivers/base/platform.o
In file included from include/linux/dma-mapping.h:24,
                 from drivers/base/platform.c:16:
include/asm/dma-mapping.h:36: warning: "struct scatterlist" declared inside parameter list
include/asm/dma-mapping.h:36: warning: its scope is only this definition or declaration, which is probably not what you want

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] death of get_thread_info/put_thread_info

2006-01-12T17:08:59+00:00

{get,put}_thread_info() were introduced in 2.5.4 and never
had been called by anything in the tree.

Signed-off-by: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] alpha: task_pt_regs()

2006-01-12T17:08:50+00:00


)

From: Al Viro 

rename alpha_task_regs() to task_pt_regs(), switch open-coded instances
to use of the helper.

Signed-off-by: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] alpha: task_stack_page()

2006-01-12T17:08:50+00:00

use task_stack_page() for accesses to stack page of task in alpha-specific
parts of tree

Signed-off-by: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds