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| author | Vineet Gupta <vgupta@synopsys.com> | 2015-03-13 07:20:23 +0100 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-06-19 14:39:39 +0200 |
| commit | 62fb64034d30293448de10a48c7ee47ee978e338 (patch) | |
| tree | 29cad87e376821c563b2d93e7e8fb634f41af705 /arch/arc/kernel/entry-compact.S | |
| parent | ARC: entry.S: move some code around for cache locality in return path (diff) | |
| download | linux-62fb64034d30293448de10a48c7ee47ee978e338.tar.xz linux-62fb64034d30293448de10a48c7ee47ee978e338.zip | |
ARC: entry.S: micro-optimize Trap handler
Elide the need to re-read ECR in Trap handler by ensuring that
EXCEPTION_PROLOGUE does that at the very end just before returning
to Trap handler
ARCv2 EXCEPTION_PROLOGUE already did that, so same for ARcompact and the
common trap handler adjusted to use cached ECR
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/entry-compact.S')
0 files changed, 0 insertions, 0 deletions