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alistair23-linux
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microblaze: Remove additional loading 

We don't need to save r0 to PT_R0. It could be additional
operation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
hifive-unleashed-5.1
Michal Simek 2010-06-22 16:04:00 +02:00
parent 653e447e11
commit 40eb0dc456
1 changed files with 0 additions and 5 deletions
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5
arch/microblaze/kernel/entry.S
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@ -535,8 +535,6 @@ C_ENTRY(sys_rt_sigreturn_wrapper):
lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); \
swi r11, r1, PTO+PT_R1; /* Store user SP. */ \
2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); \
/* Save away the syscall number. */ \
swi r0, r1, PTO+PT_R0; \
tovirt(r1,r1)
C_ENTRY(full_exception_trap):
@ -753,7 +751,6 @@ C_ENTRY(_interrupt):
swi r11, r1, PTO+PT_R1;
2:
lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE));
swi r0, r1, PTO + PT_R0;
tovirt(r1,r1)
addik r5, r1, PTO;
set_vms;
@ -868,8 +865,6 @@ C_ENTRY(_debug_exception):
lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP));
swi r11, r1, PTO+PT_R1; /* Store user SP. */
2:
/* Save away the syscall number. */
swi r0, r1, PTO+PT_R0;
tovirt(r1,r1)
set_vms;