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[PATCH] spufs: clear dsisr on CLASS1[Mf] exception

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Because of always clearing DSISR at spu class 1 interrupt handler,
kernel may lose Class1[Mf] interrupt.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Geoff Levand <geoff.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Arnd Bergmann 2005-12-09 19:04:18 +01:00 committed by Paul Mackerras
parent 462c853eb5
commit 38307341af
1 changed files with 2 additions and 1 deletions
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3
arch/powerpc/platforms/cell/spu_base.c
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@ -240,7 +240,8 @@ spu_irq_class_1(int irq, void *data, struct pt_regs *regs)
stat = in_be64(&spu->priv1->int_stat_class1_RW) & mask;
dar = in_be64(&spu->priv1->mfc_dar_RW);
dsisr = in_be64(&spu->priv1->mfc_dsisr_RW);
out_be64(&spu->priv1->mfc_dsisr_RW, 0UL);
if (stat & 2) /* mapping fault */
out_be64(&spu->priv1->mfc_dsisr_RW, 0UL);
out_be64(&spu->priv1->int_stat_class1_RW, stat);
spin_unlock(&spu->register_lock);