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| author | Luke Browning <lukebrowning@us.ibm.com> | 2008-06-05 17:30:25 +0800 |
|---|---|---|
| committer | Jeremy Kerr <jk@ozlabs.org> | 2008-06-16 14:35:00 +1000 |
| commit | 1f64643aa5f5a17f1723f7ea0f17b7a3a8f632b3 (patch) | |
| tree | fbefce858013d3b53e48b5d3aa1b640025743241 /arch | |
| parent | d84050f48ebba73994b93ccf61cea2364dac8d75 (diff) | |
| download | linux-stable-1f64643aa5f5a17f1723f7ea0f17b7a3a8f632b3.tar.gz linux-stable-1f64643aa5f5a17f1723f7ea0f17b7a3a8f632b3.tar.bz2 linux-stable-1f64643aa5f5a17f1723f7ea0f17b7a3a8f632b3.zip | |
powerpc/spufs: remove class_0_dsisr from spu exception handling
According to the CBEA, the SPU dsisr is not updated for class 0
exceptions.
spu_stopped() is testing the dsisr that was passed to it from the class
0 exception handler, so we return a false positive here.
This patch cleans up the interrupt handler and erroneous tests in
spu_stopped. It also removes the fields from the csa since it is not
needed to process class 0 events.
Signed-off-by: Luke Browning <lukebrowning@us.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/run.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 1 |
3 files changed, 0 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 70c660121ec4..96b5f0f1c11e 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -324,14 +324,12 @@ spu_irq_class_0(int irq, void *data) stat = spu_int_stat_get(spu, 0) & mask; spu->class_0_pending |= stat; - spu->class_0_dsisr = spu_mfc_dsisr_get(spu); spu->class_0_dar = spu_mfc_dar_get(spu); spin_unlock(&spu->register_lock); spu->stop_callback(spu, 0); spu->class_0_pending = 0; - spu->class_0_dsisr = 0; spu->class_0_dar = 0; spu_int_stat_clear(spu, 0, stat); diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index 0046bcfe495a..f7edba6cb795 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -27,7 +27,6 @@ void spufs_stop_callback(struct spu *spu, int irq) switch(irq) { case 0 : ctx->csa.class_0_pending = spu->class_0_pending; - ctx->csa.class_0_dsisr = spu->class_0_dsisr; ctx->csa.class_0_dar = spu->class_0_dar; break; case 1 : @@ -69,10 +68,6 @@ top: if (test_bit(SPU_SCHED_NOTIFY_ACTIVE, &ctx->sched_flags)) return 1; - dsisr = ctx->csa.class_0_dsisr; - if (dsisr & (MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED)) - return 1; - dsisr = ctx->csa.class_1_dsisr; if (dsisr & (MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED)) return 1; diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 1702de9395ee..bfcf70ee8959 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -2844,7 +2844,6 @@ static void dump_spu_fields(struct spu *spu) DUMP_FIELD(spu, "0x%lx", flags); DUMP_FIELD(spu, "%d", class_0_pending); DUMP_FIELD(spu, "0x%lx", class_0_dar); - DUMP_FIELD(spu, "0x%lx", class_0_dsisr); DUMP_FIELD(spu, "0x%lx", class_1_dar); DUMP_FIELD(spu, "0x%lx", class_1_dsisr); DUMP_FIELD(spu, "0x%lx", irqs[0]); |