linux.git/arch/alpha/kernel, branch v2.6.37

alpha: remove dma64_addr_t usage

2010-10-28T01:03:17+00:00

dma_addr_t is always 64 bit on alpha. So let's use dma_addr_t instead.

Signed-off-by: FUJITA Tomonori 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Cc: Matt Turner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ptrace: change signature of arch_ptrace()

2010-10-28T01:03:10+00:00

Fix up the arguments to arch_ptrace() to take account of the fact that
@addr and @data are now unsigned long rather than long as of a preceding
patch in this series.

Signed-off-by: Namhyung Kim 
Cc: 
Acked-by: Roland McGrath 
Acked-by: David Howells 
Acked-by: Geert Uytterhoeven 
Acked-by: David S. Miller 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

alpha: use single HAE window on T2 core logic (gamma, sable)

2010-10-26T23:52:12+00:00

T2 are the only alpha SMP systems that do HAE switching at runtime, which
is fundamentally racy on SMP.  This patch limits MMIO space on T2 to HAE0
only, like we did on MCPCIA (rawhide) long ago.  This leaves us with only
112 Mb of PCI MMIO (128 Mb HAE aperture minus 16 Mb reserved for EISA),
but since linux PCI allocations are reasonably tight, it should be enough
for sane hardware configurations.

Also, fix a typo in MCPCIA_FROB_MMIO macro which shouldn't call set_hae()
if MCPCIA_ONE_HAE_WINDOW is defined.  It's more for correctness, as
set_hae() is a no-op anyway in that case.

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

irq_work: Add generic hardirq context callbacks

2010-10-18T17:58:50+00:00

Provide a mechanism that allows running code in IRQ context. It is
most useful for NMI code that needs to interact with the rest of the
system -- like wakeup a task to drain buffers.

Perf currently has such a mechanism, so extract that and provide it as
a generic feature, independent of perf so that others may also
benefit.

The IRQ context callback is generated through self-IPIs where
possible, or on architectures like powerpc the decrementer (the
built-in timer facility) is set to generate an interrupt immediately.

Architectures that don't have anything like this get to do with a
callback from the timer tick. These architectures can call
irq_work_run() at the tail of any IRQ handlers that might enqueue such
work (like the perf IRQ handler) to avoid undue latencies in
processing the work.

Signed-off-by: Peter Zijlstra 
Acked-by: Kyle McMartin 
Acked-by: Martin Schwidefsky 
[ various fixes ]
Signed-off-by: Huang Ying 
LKML-Reference: <1287036094.7768.291.camel@yhuang-dev>
Signed-off-by: Ingo Molnar

Merge commit 'v2.6.36-rc7' into perf/core

2010-10-08T08:46:27+00:00

Conflicts:
	arch/x86/kernel/module.c

Merge reason: Resolve the conflict, pick up fixes.

Signed-off-by: Ingo Molnar

Fix up more fallout form alpha signal cleanups

2010-09-30T15:37:38+00:00

Commit c52c2ddc1dfa ("alpha: switch osf_sigprocmask() to use of
sigprocmask()") had several problems.  The more obvious compile issues
got fixed in commit 0f44fbd297e1 ("alpha: fix compile problem in
arch/alpha/kernel/signal.c"), but it also caused a regression.

Since _BLOCKABLE is already the set of signals that can be blocked, the
code should do "newmask & _BLOCKABLE" rather than inverting _BLOCKABLE
before masking.

Reported-by: Michael Cree 
Patch-by: Al Viro 
Patch-by: Ivan Kokshaysky 
Signed-off-by: Linus Torvalds

alpha: fix compile problem in arch/alpha/kernel/signal.c

2010-09-28T20:26:57+00:00

Tssk.  Apparently Al hadn't checked commit c52c2ddc1dfa ("alpha: switch
osf_sigprocmask() to use of sigprocmask()") at all. It doesn't compile.

Fixed as per suggestions from Michael Cree.

Reported-by: Michael Cree 
Cc: Al Viro 
Signed-off-by: Linus Torvalds

alpha: __get_user/__put_user results need to be checked...

2010-09-27T19:19:53+00:00

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

alpha: switch osf_sigprocmask() to use of sigprocmask()

2010-09-27T19:19:53+00:00

get rid of a useless wrapper, while we are at it

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

alpha: fix usp value in multithreaded coredumps

2010-09-25T21:38:13+00:00

rdusp() gives us the right value only for the current thread...

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