mirror of https://gitee.com/openkylin/linux.git
[POWERPC] Fix cell "new style" mapping and add debug
This fixes a typo in the "new style" code for mapping SPE resources, which causes it to try to map the same resource 4 times. It also adds some pr_debug's that are useful to track down issues with the firmware when bringinh up new machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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@ -655,14 +655,19 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
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for (i=0; i < 3; i++) {
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ret = of_irq_map_one(np, i, &oirq);
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if (ret)
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if (ret) {
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pr_debug("spu_new: failed to get irq %d\n", i);
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goto err;
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}
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ret = -EINVAL;
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pr_debug(" irq %d no 0x%x on %s\n", i, oirq.specifier[0],
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oirq.controller->full_name);
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spu->irqs[i] = irq_create_of_mapping(oirq.controller,
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oirq.specifier, oirq.size);
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if (spu->irqs[i] == NO_IRQ)
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if (spu->irqs[i] == NO_IRQ) {
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pr_debug("spu_new: failed to map it !\n");
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goto err;
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}
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}
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return 0;
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@ -681,7 +686,7 @@ static int spu_map_resource(struct device_node *node, int nr,
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struct resource resource = { };
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int ret;
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ret = of_address_to_resource(node, 0, &resource);
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ret = of_address_to_resource(node, nr, &resource);
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if (ret)
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goto out;
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@ -704,22 +709,42 @@ static int __init spu_map_device(struct spu *spu, struct device_node *node)
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ret = spu_map_resource(node, 0, (void __iomem**)&spu->local_store,
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&spu->local_store_phys);
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if (ret)
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if (ret) {
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pr_debug("spu_new: failed to map %s resource 0\n",
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node->full_name);
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goto out;
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}
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ret = spu_map_resource(node, 1, (void __iomem**)&spu->problem,
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&spu->problem_phys);
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if (ret)
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if (ret) {
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pr_debug("spu_new: failed to map %s resource 1\n",
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node->full_name);
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goto out_unmap;
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}
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ret = spu_map_resource(node, 2, (void __iomem**)&spu->priv2,
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NULL);
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if (ret)
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if (ret) {
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pr_debug("spu_new: failed to map %s resource 2\n",
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node->full_name);
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goto out_unmap;
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}
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if (!firmware_has_feature(FW_FEATURE_LPAR))
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ret = spu_map_resource(node, 3, (void __iomem**)&spu->priv1,
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NULL);
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if (ret)
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if (ret) {
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pr_debug("spu_new: failed to map %s resource 3\n",
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node->full_name);
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goto out_unmap;
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}
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pr_debug("spu_new: %s maps:\n", node->full_name);
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pr_debug(" local store : 0x%016lx -> 0x%p\n",
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spu->local_store_phys, spu->local_store);
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pr_debug(" problem state : 0x%016lx -> 0x%p\n",
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spu->problem_phys, spu->problem);
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pr_debug(" priv2 : 0x%p\n", spu->priv2);
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pr_debug(" priv1 : 0x%p\n", spu->priv1);
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return 0;
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out_unmap:
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