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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-02 12:05:44 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-02 12:08:25 -0400 |
| commit | 1d72d9f83df057e71c7951def41138a0230bf737 (patch) | |
| tree | 32e1d5b7bb3f906faa7b62bbb53a91209d73024c /arch/frv/kernel | |
| parent | 7b7ade117951dcc5ec947595ea7ff622fa56895e (diff) | |
| download | lwn-1d72d9f83df057e71c7951def41138a0230bf737.tar.gz lwn-1d72d9f83df057e71c7951def41138a0230bf737.zip | |
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/kernel')
| -rw-r--r-- | arch/frv/kernel/entry.S | 23 |
1 files changed, 3 insertions, 20 deletions
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S index b1cd7e8145bb..dfcd263c0517 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 ############################################################################### |