linux-toradex.git/arch/tile/include/asm, branch v2.6.36

Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2010-09-16T19:54:54+00:00

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: fix formatting bug in register dumps
  arch/tile: fix memcpy_fromio()/memcpy_toio() signatures
  arch/tile: Save and restore extra user state for tilegx
  arch/tile: Change struct sigcontext to be more useful
  arch/tile: finish const-ifying sys_execve()

arch/tile: fix memcpy_fromio()/memcpy_toio() signatures

2010-09-15T15:17:04+00:00

This tripped up a driver (not yet committed to git).  Fix it now.

Signed-off-by: Chris Metcalf

arch/tile: Save and restore extra user state for tilegx

2010-09-15T15:16:10+00:00

During context switch, save and restore a couple of additional bits of
tilegx user state that can be persistently modified by userspace.

Signed-off-by: Chris Metcalf

arch/tile: Change struct sigcontext to be more useful

2010-09-15T15:16:08+00:00

Rather than just using pt_regs, it now contains the actual saved
state explicitly, similar to pt_regs.  By doing it this way, we
provide a cleaner API for userspace (or equivalently, we avoid the
need for libc to provide its own definition of sigcontext).

While we're at it, move PT_FLAGS_xxx to where they are not visible
from userspace.  And always pass siginfo and mcontext to signal
handlers, even if they claim they don't need it, since sometimes
they actually try to use it anyway in practice.

Signed-off-by: Chris Metcalf

arch/tile: finish const-ifying sys_execve()

2010-09-15T15:16:05+00:00

The sys_execve() implementation was properly const-ified but not
the declaration, the syscall wrappers, or the compat version.
This change completes the constification process.

Signed-off-by: Chris Metcalf

compat: Make compat_alloc_user_space() incorporate the access_ok()

2010-09-14T23:08:45+00:00

compat_alloc_user_space() expects the caller to independently call
access_ok() to verify the returned area.  A missing call could
introduce problems on some architectures.

This patch incorporates the access_ok() check into
compat_alloc_user_space() and also adds a sanity check on the length.
The existing compat_alloc_user_space() implementations are renamed
arch_compat_alloc_user_space() and are used as part of the
implementation of the new global function.

This patch assumes NULL will cause __get_user()/__put_user() to either
fail or access userspace on all architectures.  This should be
followed by checking the return value of compat_access_user_space()
for NULL in the callers, at which time the access_ok() in the callers
can also be removed.

Reported-by: Ben Hawkes 
Signed-off-by: H. Peter Anvin 
Acked-by: Benjamin Herrenschmidt 
Acked-by: Chris Metcalf 
Acked-by: David S. Miller 
Acked-by: Ingo Molnar 
Acked-by: Thomas Gleixner 
Acked-by: Tony Luck 
Cc: Andrew Morton 
Cc: Arnd Bergmann 
Cc: Fenghua Yu 
Cc: H. Peter Anvin 
Cc: Heiko Carstens 
Cc: Helge Deller 
Cc: James Bottomley 
Cc: Kyle McMartin 
Cc: Martin Schwidefsky 
Cc: Paul Mackerras 
Cc: Ralf Baechle 
Cc:

arch/tile: export only COMMAND_LINE_SIZE to userspace.

2010-08-15T16:14:41+00:00

This fixes a failure in "make headers_check" for tile.
I hadn't realized this file was exported to userspace by default.

Signed-off-by: Chris Metcalf

arch/tile: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

2010-08-15T15:05:33+00:00

See commit a6eb9fe105d5de0053b261148cee56c94b4720ca.

Signed-off-by: Chris Metcalf 
Acked-by: FUJITA Tomonori

arch/tile: Rename the hweight() implementations to __arch_hweight()

2010-08-14T00:45:54+00:00

See commit 1527bc8b928dd1399c3d3467dd47d9ede210978a.

Signed-off-by: Chris Metcalf

Merge branch 'master' into for-linus

2010-08-13T23:59:15+00:00