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xtensa: clean up stpill_registers 

- remove unused asm parameters;
- fix EXCM bit setting in the PS SR during _spill_registers call.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
This commit is contained in:
Max Filippov 2013-04-06 04:10:13 +04:00 committed by Chris Zankel
parent f4b93ba931
commit 4e96274e2b
1 changed files with 2 additions and 3 deletions
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5
arch/xtensa/include/asm/traps.h
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@ -22,10 +22,9 @@ extern void do_unhandled(struct pt_regs *regs, unsigned long exccause);
static inline void spill_registers(void)
{
unsigned int a0, ps;
__asm__ __volatile__ (
"movi a14, " __stringify(PS_EXCM_BIT | LOCKLEVEL) "\n\t"
"movi a14, "__stringify((1 << PS_EXCM_BIT) | LOCKLEVEL)"\n\t"
"mov a12, a0\n\t"
"rsr a13, sar\n\t"
"xsr a14, ps\n\t"
@ -35,7 +34,7 @@ static inline void spill_registers(void)
"mov a0, a12\n\t"
"wsr a13, sar\n\t"
"wsr a14, ps\n\t"
: : "a" (&a0), "a" (&ps)
: :
#if defined(CONFIG_FRAME_POINTER)
: "a2", "a3", "a4", "a11", "a12", "a13", "a14", "a15",
#else