diff options
| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2009-11-04 10:32:57 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-11-04 13:06:44 -0800 |
| commit | 865df576e8fc70daf297b53e61a4fbefc719d065 (patch) | |
| tree | 59abb13e1dd402bf8cb4496ab94bbceb2ac2ee2b /drivers/pci/probe.c | |
| parent | 0207c356ef0e2bae6ce4603080d42c130d7debc6 (diff) | |
PCI: improve discovery/configuration messages
This makes PCI resource management messages more consistent and adds a few
new messages to aid debugging.
Whenever we assign resources to a device, update a BAR, or change a
bridge aperture, it's worth noting it.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index a7fdc4344ce..623086f9ba8 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -226,7 +226,8 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, goto fail; if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) { - dev_err(&dev->dev, "can't handle 64-bit BAR\n"); + dev_err(&dev->dev, "reg %x: can't handle 64-bit BAR\n", + pos); goto fail; } @@ -294,8 +295,11 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) if (pci_is_root_bus(child)) /* It's a host bus, nothing to read */ return; + dev_info(&dev->dev, "PCI bridge to [bus %02x-%02x]%s\n", + child->secondary, child->subordinate, + dev->transparent ? " (subtractive decode)": ""); + if (dev->transparent) { - dev_info(&dev->dev, "transparent bridge\n"); for(i = 3; i < PCI_BUS_NUM_RESOURCES; i++) child->resource[i] = child->parent->resource[i - 3]; } @@ -645,13 +649,14 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, (child->number > bus->subordinate) || (child->number < bus->number) || (child->subordinate < bus->number)) { - pr_debug("PCI: Bus #%02x (-#%02x) is %s " - "hidden behind%s bridge #%02x (-#%02x)\n", + dev_info(&child->dev, "[bus %02x-%02x] %s " + "hidden behind%s bridge %s [bus %02x-%02x]\n", child->number, child->subordinate, (bus->number > child->subordinate && bus->subordinate < child->number) ? "wholly" : "partially", bus->self->transparent ? " transparent" : "", + dev_name(&bus->dev), bus->number, bus->subordinate); } bus = bus->parent; |