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author | Grant Likely <grant.likely@secretlab.ca> | 2010-07-24 19:49:13 +0400 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-07-24 19:49:13 +0400 |
commit | 4e4f62bf7396fca48efe61513640ee399a6046e3 (patch) | |
tree | 42a503af02d9806bcc05e5fcc2cd53f9bd45b0c2 /drivers/pci/setup-res.c | |
parent | 9e3288dc9a94fab5ea87db42177d3a9e0345a614 (diff) | |
parent | b37fa16e78d6f9790462b3181602a26b5af36260 (diff) | |
download | linux-4e4f62bf7396fca48efe61513640ee399a6046e3.tar.xz |
Merge commit 'v2.6.35-rc6' into devicetree/next
Conflicts:
arch/sparc/kernel/prom_64.c
Diffstat (limited to 'drivers/pci/setup-res.c')
-rw-r--r-- | drivers/pci/setup-res.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 92379e2d37e7..2aaa13150de3 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -156,6 +156,38 @@ static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev, pcibios_align_resource, dev); } + if (ret < 0 && dev->fw_addr[resno]) { + struct resource *root, *conflict; + resource_size_t start, end; + + /* + * If we failed to assign anything, let's try the address + * where firmware left it. That at least has a chance of + * working, which is better than just leaving it disabled. + */ + + if (res->flags & IORESOURCE_IO) + root = &ioport_resource; + else + root = &iomem_resource; + + start = res->start; + end = res->end; + res->start = dev->fw_addr[resno]; + res->end = res->start + size - 1; + dev_info(&dev->dev, "BAR %d: trying firmware assignment %pR\n", + resno, res); + conflict = request_resource_conflict(root, res); + if (conflict) { + dev_info(&dev->dev, + "BAR %d: %pR conflicts with %s %pR\n", resno, + res, conflict->name, conflict); + res->start = start; + res->end = end; + } else + ret = 0; + } + if (!ret) { res->flags &= ~IORESOURCE_STARTALIGN; dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res); |