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2008-04-17Generic semaphore implementationMatthew Wilcox1-1/+1
Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Ingo Molnar <mingo@elte.hu>
2008-02-14sh: trapped io support V2Magnus Damm1-0/+1
The idea is that we want to get rid of the in/out/readb/writeb callbacks from the machvec and replace that with simple inline read and write operations to memory. Fast and simple for most hardware devices (think pci). Some devices require special treatment though - like 16-bit only CF devices - so we need to have some method to hook in callbacks. This patch makes it possible to add a per-device trap generating filter. This way we can get maximum performance of sane hardware - which doesn't need this filter - and crappy hardware works but gets punished by a performance hit. V2 changes things around a bit and replaces io access callbacks with a simple minimum_bus_width value. In the future we can add stride as well. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Kill off the rest of arch/sh64/kernel/.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Share bug/debug traps across _32 and _64.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: sys_sh consolidation for arch_get_unmapped_area().Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Share the ELF dump_task interfaces.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Split out sh_ksyms.c in to _32 and _64 variants.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Split out syscall ABI for _32 and _64 variants.Paul Mundt1-2/+2
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move over the SH-5 head.S and tlb.h.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move in the SH-5 traps.c impl.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move arch/sh64/kernel/sys_sh64.c to arch/sh/kernel/Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move in the SH-5 signal trampoline impl.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Move in the SH-5 ptrace impl.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Split out processor.h in to _32 and _64 variants.Paul Mundt1-0/+21
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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