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authorAl Viro <viro@zeniv.linux.org.uk>2012-11-02 12:05:44 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-11-02 12:08:25 -0400
commit1d72d9f83df057e71c7951def41138a0230bf737 (patch)
tree32e1d5b7bb3f906faa7b62bbb53a91209d73024c /arch/frv
parent7b7ade117951dcc5ec947595ea7ff622fa56895e (diff)
downloadvexpress-lsk-1d72d9f83df057e71c7951def41138a0230bf737.tar.gz
frv: fix the broken preempt
Just get %icc2 into the state we would have after local_irq_disable() and physical IRQ having happened since then. Then we can simply use preempt_schedule_irq() and be done with the whole mess. Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/frv')
-rw-r--r--arch/frv/kernel/entry.S23
1 files changed, 3 insertions, 20 deletions
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index b1cd7e8145b..dfcd263c051 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1075,27 +1075,10 @@ __entry_return_from_kernel_interrupt:
subicc gr5,#0,gr0,icc0
beq icc0,#0,__entry_return_direct
-__entry_preempt_need_resched:
- ldi @(gr15,#TI_FLAGS),gr4
- andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0
- beq icc0,#1,__entry_return_direct
-
- setlos #PREEMPT_ACTIVE,gr5
- sti gr5,@(gr15,#TI_PRE_COUNT)
-
- andi gr23,#~PSR_PIL,gr23
- movgs gr23,psr
-
- call schedule
- sti gr0,@(gr15,#TI_PRE_COUNT)
-
- movsg psr,gr23
- ori gr23,#PSR_PIL_14,gr23
- movgs gr23,psr
- bra __entry_preempt_need_resched
-#else
- bra __entry_return_direct
+ subcc gr0,gr0,gr0,icc2 /* set Z and clear C */
+ call preempt_schedule_irq
#endif
+ bra __entry_return_direct
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