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Lines 270-300
static void quirk_system_pci_resources(struct pnp_dev *dev)
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continue; |
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continue; |
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/* |
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/* |
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* If the PNP region completely encloses (or is |
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* If the resources overlap, make sure the PCI |
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* at least as large as) the PCI region, that's |
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* core assigns a new range for the conflicting |
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* also OK. For example, this happens when the |
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* BARs. |
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* PNP device describes a bridge with PCI |
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* behind it. |
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*/ |
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*/ |
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if (pnp_start <= pci_start && |
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pdev->resource[i].end = |
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pnp_end >= pci_end) |
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pci_resource_len(pdev, i) - 1; |
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continue; |
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pdev->resource[i].start = 0; |
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/* |
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* Otherwise, the PNP region overlaps *part* of |
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* the PCI region, and that might prevent a PCI |
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* driver from requesting its resources. |
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*/ |
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dev_warn(&dev->dev, "%s resource " |
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dev_warn(&dev->dev, "%s resource " |
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"(0x%llx-0x%llx) overlaps %s BAR %d " |
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"(0x%llx-0x%llx) overlaps %s BAR %d " |
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"(0x%llx-0x%llx), disabling\n", |
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"(0x%llx-0x%llx), reassigning BAR\n", |
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pnp_resource_type_name(res), |
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pnp_resource_type_name(res), |
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(unsigned long long) pnp_start, |
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(unsigned long long) pnp_start, |
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(unsigned long long) pnp_end, |
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(unsigned long long) pnp_end, |
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pci_name(pdev), i, |
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pci_name(pdev), i, |
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(unsigned long long) pci_start, |
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(unsigned long long) pci_start, |
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(unsigned long long) pci_end); |
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(unsigned long long) pci_end); |
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res->flags |= IORESOURCE_DISABLED; |
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} |
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} |
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} |
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} |
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} |
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} |