USB OpenHCI host controller on Au1550 only decodes memory addresses from
0x14020000 to 0x1407FFFF according to the databook, which gives 0x60000
(on the prior Au1x00 chips the map size was 1MB).
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: NJordan Crouse <jordan.crouse@amd.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@ongar.mips.com>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@ongar.mips.com>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

    
It was resulting in build errors for some configurations.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

    
Just doesn't fool a modern compiler anymore.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

    
0x2ff was a typo and the value 0x1f of DSP_MASK was refering to an old
version of the documentation.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

    
mdelay(1) (i.e. udelay(1000)) does not work correctly due to overflow.
    
1000 * 0x004189374BC6A7f0 = 0x10000000000000180 (>= 2**64)
    
0x004189374BC6A7ef (0x004189374BC6A7f0 - 1) is OK and it is exactly
same as catchall case (0x8000000000000000UL / (500000 / HZ)).
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

    
used_dsp was meant to be used like used_math - but since the FPU context
is small and lazy context switching is a stupid idea on multiprocessors
this idea only got halfway implemented and those bits are were now
breaking ptrace.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

I think it is better to set ->next_pending in the caller, when
it is needed. This saves one parameter, and this coincides with
cpu_quiet() beahaviour, which sets ->completed = ->cur itself.
Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru>
Acked-by: NPaul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

convert the block loop device from semaphores to completions.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

The patch changes semaphores that are initialized as
locked to complete().

Source: MontaVista Software, Inc.
Modified-by: NSteven Rostedt <rostedt@goodmis.org>

The following patch is from Montavista.  I modified it slightly.
Semaphores are currently being used where it makes more sense for
completions.  This patch corrects that.
Signed-off-by: NAleksey Makarov <amakarov@ru.mvista.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

change CPU3WDT semaphores to completions.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

change SX8 semaphores to completions.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

This patch converts the superblock-lock semaphore to a mutex, affecting
lock_super()/unlock_super(). Tested on ext3 and XFS.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.
Modified-by: NIngo Molnar <mingo@elte.hu>

(finished the conversion)
Signed-off-by: NJes Sorensen <jes@sgi.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

This patch switches XFS over to use the new mutex code directly as
opposed to the previous workaround patch I posted earlier that avoided
the namespace clash by forcing it back to semaphores. This falls in the
'works for me<tm>' category.
Signed-off-by: NJes Sorensen <jes@trained-monkey.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

more mutex debugging: check for held locks during memory freeing,
task exit, enable sysrq printouts, etc.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>

mutex implementation - add debugging code.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>

Add mutex design related documentation.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>

mutex implementation, core files: just the basic subsystem, no users of it.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>

add the per-arch mutex.h files for the remaining architectures.

We default to asm-generic/mutex-dec.h, because that performs
quite well on most arches. Arches that do not have atomic
decrement/increment instructions should switch to mutex-xchg.h
instead. Arches can also provide their own implementation for
the mutex fastpath primitives.
Signed-off-by: NArjan van de Ven <arjan@infradead.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

add the ARM version of mutex.h, which is optimized in assembly for
ARMv6, and uses the xchg implementation on pre-ARMv6.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

add the x86_64 version of mutex.h, optimized in assembly.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>

add the i386 version of mutex.h, optimized in assembly.
Signed-off-by: NArjan van de Ven <arjan@infradead.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Add three (generic) mutex fastpath implementations.

The mutex-xchg.h implementation is atomic_xchg() based, and should
work fine on every architecture.

The mutex-dec.h implementation is atomic_dec_return() based - this
one too should work on every architecture, but might not perform the
most optimally on architectures that have no atomic-dec/inc instructions.

The mutex-null.h implementation forces all calls into the slowpath. This
is used for mutex debugging, but it can also be used on platforms that do
not want (or need) a fastpath at all.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>

add typecheck_fn(type, function) to do type-checking of function
pointers.
Modified-by: NIngo Molnar <mingo@elte.hu>

(made it typeof() based, instead of typedef based.)
Signed-off-by: NChuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

add atomic_xchg() to all the architectures. Needed by the new mutex code.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@infradead.org>