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authorMichal Simek <monstr@monstr.eu>2010-06-22 10:04:00 -0400
committerMichal Simek <monstr@monstr.eu>2010-08-04 04:22:51 -0400
commit40eb0dc456dc3dd3f01da94e1f36085e956f20cc (patch)
tree1bfe9a5ee5cf6d866998ea6e6ed7765edfb4f0fe /arch
parent653e447e113a19fcb54d454b9f5a3bff9979729f (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/microblaze/kernel/entry.S5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 9b8e072d828d..8f4a45e34a9e 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -535,8 +535,6 @@ C_ENTRY(sys_rt_sigreturn_wrapper):
535 lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); \ 535 lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); \
536 swi r11, r1, PTO+PT_R1; /* Store user SP. */ \ 536 swi r11, r1, PTO+PT_R1; /* Store user SP. */ \
5372: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); \ 5372: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); \
538 /* Save away the syscall number. */ \
539 swi r0, r1, PTO+PT_R0; \
540 tovirt(r1,r1) 538 tovirt(r1,r1)
541 539
542C_ENTRY(full_exception_trap): 540C_ENTRY(full_exception_trap):
@@ -753,7 +751,6 @@ C_ENTRY(_interrupt):
753 swi r11, r1, PTO+PT_R1; 751 swi r11, r1, PTO+PT_R1;
7542: 7522:
755 lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); 753 lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE));
756 swi r0, r1, PTO + PT_R0;
757 tovirt(r1,r1) 754 tovirt(r1,r1)
758 addik r5, r1, PTO; 755 addik r5, r1, PTO;
759 set_vms; 756 set_vms;
@@ -868,8 +865,6 @@ C_ENTRY(_debug_exception):
868 lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); 865 lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP));
869 swi r11, r1, PTO+PT_R1; /* Store user SP. */ 866 swi r11, r1, PTO+PT_R1; /* Store user SP. */
8702: 8672:
871 /* Save away the syscall number. */
872 swi r0, r1, PTO+PT_R0;
873 tovirt(r1,r1) 868 tovirt(r1,r1)
874 869
875 set_vms; 870 set_vms;