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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-10-10 15:14:12 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-10-16 15:52:14 +1000 |
| commit | e5267b4b376cfbdc4518abcc68d5a7fffb505638 (patch) | |
| tree | 7f11392c3dae58cdc21f2afb807c95f8f72ad563 /arch | |
| parent | 51018b0a3160d253283173c2f54f16746cee5852 (diff) | |
| download | linux-3.10-e5267b4b376cfbdc4518abcc68d5a7fffb505638.tar.gz linux-3.10-e5267b4b376cfbdc4518abcc68d5a7fffb505638.tar.bz2 linux-3.10-e5267b4b376cfbdc4518abcc68d5a7fffb505638.zip | |
[POWERPC] Don't crash on cell with 2 BEs when !CONFIG_NUMA
The SPU code will crash if CONFIG_NUMA is not set and SPUs are found on
a non-0 node. This workaround will ignore those SPEs and just print an
message in the kernel log.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index ccfd0c4db87..d0fb959e3ef 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -781,6 +781,17 @@ static int __init create_spu(struct device_node *spe) if (!spu) goto out; + spu->node = find_spu_node_id(spe); + if (spu->node >= MAX_NUMNODES) { + printk(KERN_WARNING "SPE %s on node %d ignored," + " node number too big\n", spe->full_name, spu->node); + printk(KERN_WARNING "Check if CONFIG_NUMA is enabled.\n"); + return -ENODEV; + } + spu->nid = of_node_to_nid(spe); + if (spu->nid == -1) + spu->nid = 0; + ret = spu_map_device(spu, spe); /* try old method */ if (ret) @@ -788,10 +799,6 @@ static int __init create_spu(struct device_node *spe) if (ret) goto out_free; - spu->node = find_spu_node_id(spe); - spu->nid = of_node_to_nid(spe); - if (spu->nid == -1) - spu->nid = 0; ret = spu_map_interrupts(spu, spe); if (ret) ret = spu_map_interrupts_old(spu, spe); |