diff options
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 85 |
1 files changed, 74 insertions, 11 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index ae550d71b815..43e11c9502d1 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -851,6 +851,66 @@ struct resource *pci_find_resource(struct pci_dev *dev, struct resource *res) EXPORT_SYMBOL(pci_find_resource); /** + * pci_resource_name - Return the name of the PCI resource + * @dev: PCI device to query + * @i: index of the resource + * + * Return the standard PCI resource (BAR) name according to their index. + */ +const char *pci_resource_name(struct pci_dev *dev, unsigned int i) +{ + static const char * const bar_name[] = { + "BAR 0", + "BAR 1", + "BAR 2", + "BAR 3", + "BAR 4", + "BAR 5", + "ROM", +#ifdef CONFIG_PCI_IOV + "VF BAR 0", + "VF BAR 1", + "VF BAR 2", + "VF BAR 3", + "VF BAR 4", + "VF BAR 5", +#endif + "bridge window", /* "io" included in %pR */ + "bridge window", /* "mem" included in %pR */ + "bridge window", /* "mem pref" included in %pR */ + }; + static const char * const cardbus_name[] = { + "BAR 1", + "unknown", + "unknown", + "unknown", + "unknown", + "unknown", +#ifdef CONFIG_PCI_IOV + "unknown", + "unknown", + "unknown", + "unknown", + "unknown", + "unknown", +#endif + "CardBus bridge window 0", /* I/O */ + "CardBus bridge window 1", /* I/O */ + "CardBus bridge window 0", /* mem */ + "CardBus bridge window 1", /* mem */ + }; + + if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS && + i < ARRAY_SIZE(cardbus_name)) + return cardbus_name[i]; + + if (i < ARRAY_SIZE(bar_name)) + return bar_name[i]; + + return "unknown"; +} + +/** * pci_wait_for_pending - wait for @mask bit(s) to clear in status word @pos * @dev: the PCI device to operate on * @pos: config space offset of status word @@ -3299,6 +3359,7 @@ static struct resource *pci_ea_get_resource(struct pci_dev *dev, u8 bei, static int pci_ea_read(struct pci_dev *dev, int offset) { struct resource *res; + const char *res_name; int ent_size, ent_offset = offset; resource_size_t start, end; unsigned long flags; @@ -3328,6 +3389,7 @@ static int pci_ea_read(struct pci_dev *dev, int offset) goto out; res = pci_ea_get_resource(dev, bei, prop); + res_name = pci_resource_name(dev, bei); if (!res) { pci_err(dev, "Unsupported EA entry BEI: %u\n", bei); goto out; @@ -3401,16 +3463,16 @@ static int pci_ea_read(struct pci_dev *dev, int offset) res->flags = flags; if (bei <= PCI_EA_BEI_BAR5) - pci_info(dev, "BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", - bei, res, prop); + pci_info(dev, "%s %pR: from Enhanced Allocation, properties %#02x\n", + res_name, res, prop); else if (bei == PCI_EA_BEI_ROM) - pci_info(dev, "ROM: %pR (from Enhanced Allocation, properties %#02x)\n", - res, prop); + pci_info(dev, "%s %pR: from Enhanced Allocation, properties %#02x\n", + res_name, res, prop); else if (bei >= PCI_EA_BEI_VF_BAR0 && bei <= PCI_EA_BEI_VF_BAR5) - pci_info(dev, "VF BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", - bei - PCI_EA_BEI_VF_BAR0, res, prop); + pci_info(dev, "%s %pR: from Enhanced Allocation, properties %#02x\n", + res_name, res, prop); else - pci_info(dev, "BEI %d res: %pR (from Enhanced Allocation, properties %#02x)\n", + pci_info(dev, "BEI %d %pR: from Enhanced Allocation, properties %#02x\n", bei, res, prop); out: @@ -6698,14 +6760,15 @@ static void pci_request_resource_alignment(struct pci_dev *dev, int bar, resource_size_t align, bool resize) { struct resource *r = &dev->resource[bar]; + const char *r_name = pci_resource_name(dev, bar); resource_size_t size; if (!(r->flags & IORESOURCE_MEM)) return; if (r->flags & IORESOURCE_PCI_FIXED) { - pci_info(dev, "BAR%d %pR: ignoring requested alignment %#llx\n", - bar, r, (unsigned long long)align); + pci_info(dev, "%s %pR: ignoring requested alignment %#llx\n", + r_name, r, (unsigned long long)align); return; } @@ -6741,8 +6804,8 @@ static void pci_request_resource_alignment(struct pci_dev *dev, int bar, * devices and we use the second. */ - pci_info(dev, "BAR%d %pR: requesting alignment to %#llx\n", - bar, r, (unsigned long long)align); + pci_info(dev, "%s %pR: requesting alignment to %#llx\n", + r_name, r, (unsigned long long)align); if (resize) { r->start = 0; |