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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-07-09 15:07:13 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-08-26 09:40:25 +0530 |
| commit | 37f3ac498c988536f0d42b4659fb5d2c050b2f96 (patch) | |
| tree | 1e680c84ddf182c3e830517f96763c752928a099 /arch/arc/mm/tlbex.S | |
| parent | fe240f11cdab5831d0c4c1ecbaab00b7d302f295 (diff) | |
| download | op-kernel-dev-37f3ac498c988536f0d42b4659fb5d2c050b2f96.zip op-kernel-dev-37f3ac498c988536f0d42b4659fb5d2c050b2f96.tar.gz | |
ARC: Exception Handlers Code consolidation
After the recent cleanups, all the exception handlers now have same
boilerplate prologue code. Move that into common macro.
This reduces readability but helps greatly with sharing / duplicating
entry code with ARCv2 ISA where the handlers are pretty much the same,
just the entry prologue is different (due to hardware assist).
Also while at it, add the missing FAKE_RET_FROM_EXCPN calls in couple of
places to drop down to pure kernel mode (from exception mode) before
jumping off into "C" code.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/mm/tlbex.S')
| -rw-r--r-- | arch/arc/mm/tlbex.S | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S index 5c5bb23..fc34ebc 100644 --- a/arch/arc/mm/tlbex.S +++ b/arch/arc/mm/tlbex.S @@ -371,13 +371,7 @@ do_slow_path_pf: ; Slow path TLB Miss handled as a regular ARC Exception ; (stack switching / save the complete reg-file). - ; That requires freeing up r9 - EXCPN_PROLOG_FREEUP_REG r9 - - lr r9, [erstatus] - - SWITCH_TO_KERNEL_STK - SAVE_ALL_SYS + EXCEPTION_PROLOGUE ; ------- setup args for Linux Page fault Hanlder --------- mov_s r0, sp |
