| commit | ce48b2100785e5ca629fb3aa8e3b50aca808f692 | |
| author | Michael Neuling <mikey@neuling.org> | |
| Wed, 25 Jun 2008 04:07:18 +0000 (25 14:07 +1000) | ||
| committer | Paul Mackerras <paulus@samba.org> | |
| Tue, 1 Jul 2008 01:28:50 +0000 (1 11:28 +1000) | ||
| tree | 63532ff7cc68b18ca4902bd10e03fcbaaf01cade | treesnapshot (tar.gz zip) |
| parent | 72ffff5b1792b0fa4d40a8e2f3276fff999820ec | commitdiff |
powerpc: Add VSX context save/restore, ptrace and signal support
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 <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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 <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
16 files changed: