talos-op-linux/include/asm-powerpc/system.h, branch v3.1-rc9

powerpc: Move include files to arch/powerpc/include/asm

2008-08-04T02:02:00+00:00

from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras

powerpc: BookE hardware watchpoint support

2008-07-25T05:44:39+00:00

This patch implements support for HW based watchpoint via the DBSR_DAC (Data Address Compare) facility of the BookE processors. It does so by interfacing with the existing DABR breakpoint code and adding the necessary bits and pieces for the new bits to be properly set or cleared Signed-off-by: Luis Machado Signed-off-by: Benjamin Herrenschmidt

powerpc: fix giveup_vsx to save registers correctly

2008-07-15T02:29:23+00:00

giveup_vsx didn't save the FPU and VMX regsiters. Change it to be like giveup_fpr/altivec which save these registers. Also update call sites where FPU and VMX are already saved to use the original giveup_vsx (renamed to __giveup_vsx). Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc: Add VSX context save/restore, ptrace and signal support

2008-07-01T01:28:50+00:00

This patch extends the floating point save and restore code to use the VSX load/stores when VSX is available. This will make FP context save/restore marginally slower on FP only code, when VSX is available, as it has to load/store 128bits rather than just 64bits. Mixing FP, VMX and VSX code will get constant architected state. The signals interface is extended to enable access to VSR 0-31 doubleword 1 after discussions with tool chain maintainers. Backward compatibility is maintained. The ptrace interface is also extended to allow access to VSR 0-31 full registers. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras

powerpc: Move code patching code into arch/powerpc/lib/code-patching.c

2008-07-01T01:28:18+00:00

We currently have a few routines for patching code in asm/system.h, because they didn't fit anywhere else. I'd like to clean them up a little and add some more, so first move them into a dedicated C file - they don't need to be inlined. While we're moving the code, drop create_function_call(), it's intended caller never got merged and will be replaced in future with something different. Signed-off-by: Michael Ellerman Acked-by: Kumar Gala Signed-off-by: Paul Mackerras

powerpc: Optimise smp_wmb on 64-bit processors

2008-06-30T12:30:25+00:00

For 64-bit processors, lwsync is the recommended method of store/store ordering on caching enabled memory. For those subarchs which have lwsync, use it rather than eieio for smp_wmb. Signed-off-by: Nick Piggin Signed-off-by: Paul Mackerras

Merge branch 'linux-2.6'

2008-06-30T00:16:50+00:00

[POWERPC] Fix rmb to order cacheable vs. noncacheable

2008-06-16T05:00:20+00:00

lwsync is explicitly defined not to have any effect on the ordering of accesses to device memory, so it cannot be used for rmb(). sync appears to be the only barrier which fits the bill. Signed-off-by: Nick Piggin Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Move declaration of init_bootmem_done into system.h

2008-05-14T12:31:44+00:00

... instead of having an extern declaration in a .c file. Signed-off-by: Michael Ellerman Signed-off-by: Paul Mackerras

[POWERPC] Use __always_inline for xchg* and cmpxchg*

2008-04-29T05:57:34+00:00

This changes the definitions of the xchg and cmpxchg families of functions in include/asm-powerpc/system.h to be marked __always_inline rather than __inline__. The reason for doing this is that we rely on the compiler inlining them in order to eliminate the references to __xchg_called_with_bad_pointer and __cmpxchg_called_with_bad_pointer, which are deliberately left undefined. Thus this change will enable us to make the inline keyword be just a hint rather than a directive. Signed-off-by: Paul Mackerras