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* sh: Fix occasional FPU register corruption under preempt.Paul Mundt2008-03-261-0/+1
| | | | | | | | | | | Presently with preempt enabled there's the possibility to be preempted after the TIF_USEDFPU test and the register save, leading to bogus state post-__switch_to(). Use an explicit preempt_disable()/enable() pair around unlazy_fpu()/clear_fpu() to avoid this. Follows the x86 change. Reported-by: Takuo Koguchi <takuo.koguchi.sw@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* aout: move STACK_TOP[_MAX] to asm/processor.hDavid Howells2008-02-081-0/+3
| | | | | | | | | | Move STACK_TOP[_MAX] out of asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT format is available. Signed-off-by: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: Bring the SH-5 FPU in line with the SH-4 FPU API.Paul Mundt2008-01-281-26/+0
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Move vsyscall_init() defs up one level.Paul Mundt2008-01-281-6/+0
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: More SH-5 cpuinfo tidying.Paul Mundt2008-01-281-1/+0
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Split out processor.h in to _32 and _64 variants.Paul Mundt2008-01-281-0/+248
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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