joel16/android_kernel_sony_msm8994_rework
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[PARISC] fix signal trampoline cache flushing

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The signal trampolines were accidently flushing the kernel I$ instead of
the users.  Fix that up, and also add a missing user D$ flush while
we're at it.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kyle McMartin 2008-04-15 18:36:38 -04:00 committed by Linus Torvalds
parent 093a07e2fd
commit cf39cc3b56
1 changed files with 2 additions and 1 deletions
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arch/parisc/kernel/signal.c
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@ -534,7 +534,8 @@ insert_restart_trampoline(struct pt_regs *regs)
* Flushing one cacheline is cheap.
* "sync" on bigger (> 4 way) boxes is not.
*/
flush_icache_range(regs->gr[30], regs->gr[30] + 4);
flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4);
flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);
regs->gr[31] = regs->gr[30] + 8;
/* Preserve original r28. */