From: Arnd Bergmann <arnd@arndb.de>
To: Paul Mackerras <paulus@samba.org>
Cc: linuxppc64-dev@ozlabs.org, linux-kernel@vger.kernel.org,
Masato Noguchi <Masato.Noguchi@jp.sony.com>,
Geoff Levand <geoff.levand@am.sony.com>,
Arnd Bergmann <arndb@de.ibm.com>
Subject: [PATCH 4/8] spufs: clear dsisr on CLASS1[Mf] exception
Date: Fri, 09 Dec 2005 19:04:18 +0100 [thread overview]
Message-ID: <20051209182053.991411000@localhost> (raw)
In-Reply-To: 20051209180414.872465000@localhost
[-- Attachment #1: spufs-clear-dsisr.diff --]
[-- Type: text/plain, Size: 950 bytes --]
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);
--
next prev parent reply other threads:[~2005-12-09 18:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-09 18:04 [PATCH 0/8] Re: Cell updates for powerpc.git Arnd Bergmann
2005-12-09 18:04 ` [PATCH 1/8] spufs: fix module refcount race Arnd Bergmann
2005-12-09 18:04 ` [PATCH 2/8] spufs: trivial compile fix Arnd Bergmann
2005-12-09 18:04 ` [PATCH 3/8] spufs: fix hexdump format Arnd Bergmann
2005-12-09 18:04 ` Arnd Bergmann [this message]
2005-12-09 18:04 ` [PATCH 5/8] cell: enable pause(0) in cpu_idle Arnd Bergmann
2005-12-09 18:04 ` [PATCH 6/8] cell: add iommu support for larger memory Arnd Bergmann
2005-12-09 18:04 ` [PATCH 7/8] cell: disable legacy i/o area Arnd Bergmann
2005-12-09 18:21 ` [PATCH 8/8] powerpc: fix large nvram access Arnd Bergmann
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