Messages in this thread Patch in this message | | | Date | Fri, 09 Dec 2005 19:04:18 +0100 | From | Arnd Bergmann <> | Subject | [PATCH 4/8] spufs: clear dsisr on CLASS1[Mf] exception |
| |
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> Index: linux-2.6.15-rc/arch/powerpc/platforms/cell/spu_base.c =================================================================== --- linux-2.6.15-rc.orig/arch/powerpc/platforms/cell/spu_base.c +++ linux-2.6.15-rc/arch/powerpc/platforms/cell/spu_base.c @@ -240,7 +240,8 @@ spu_irq_class_1(int irq, void *data, str 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); --
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |