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Diffstat (limited to 'arch/sparc/kernel/pci.c')
-rw-r--r--arch/sparc/kernel/pci.c136
1 files changed, 86 insertions, 50 deletions
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 41b20edb427d7..17ea16a1337ce 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -214,8 +214,8 @@ static void pci_parse_of_addrs(struct platform_device *op,
if (!addrs)
return;
if (ofpci_verbose)
- printk(" parse addresses (%d bytes) @ %p\n",
- proplen, addrs);
+ pci_info(dev, " parse addresses (%d bytes) @ %p\n",
+ proplen, addrs);
op_res = &op->resource[0];
for (; proplen >= 20; proplen -= 20, addrs += 5, op_res++) {
struct resource *res;
@@ -227,8 +227,8 @@ static void pci_parse_of_addrs(struct platform_device *op,
continue;
i = addrs[0] & 0xff;
if (ofpci_verbose)
- printk(" start: %llx, end: %llx, i: %x\n",
- op_res->start, op_res->end, i);
+ pci_info(dev, " start: %llx, end: %llx, i: %x\n",
+ op_res->start, op_res->end, i);
if (PCI_BASE_ADDRESS_0 <= i && i <= PCI_BASE_ADDRESS_5) {
res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2];
@@ -236,13 +236,15 @@ static void pci_parse_of_addrs(struct platform_device *op,
res = &dev->resource[PCI_ROM_RESOURCE];
flags |= IORESOURCE_READONLY | IORESOURCE_SIZEALIGN;
} else {
- printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i);
+ pci_err(dev, "bad cfg reg num 0x%x\n", i);
continue;
}
res->start = op_res->start;
res->end = op_res->end;
res->flags = flags;
res->name = pci_name(dev);
+
+ pci_info(dev, "reg 0x%x: %pR\n", i, res);
}
}
@@ -289,8 +291,8 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
type = "";
if (ofpci_verbose)
- printk(" create device, devfn: %x, type: %s\n",
- devfn, type);
+ pci_info(bus," create device, devfn: %x, type: %s\n",
+ devfn, type);
dev->sysdata = node;
dev->dev.parent = bus->bridge;
@@ -323,10 +325,6 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
dev_set_name(&dev->dev, "%04x:%02x:%02x.%d", pci_domain_nr(bus),
dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn));
- if (ofpci_verbose)
- printk(" class: 0x%x device name: %s\n",
- dev->class, pci_name(dev));
-
/* I have seen IDE devices which will not respond to
* the bmdma simplex check reads if bus mastering is
* disabled.
@@ -353,10 +351,13 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
dev->irq = PCI_IRQ_NONE;
}
+ pci_info(dev, "[%04x:%04x] type %02x class %#08x\n",
+ dev->vendor, dev->device, dev->hdr_type, dev->class);
+
pci_parse_of_addrs(sd->op, node, dev);
if (ofpci_verbose)
- printk(" adding to system ...\n");
+ pci_info(dev, " adding to system ...\n");
pci_device_add(dev, bus);
@@ -430,19 +431,19 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm,
u64 size;
if (ofpci_verbose)
- printk("of_scan_pci_bridge(%s)\n", node->full_name);
+ pci_info(dev, "of_scan_pci_bridge(%s)\n", node->full_name);
/* parse bus-range property */
busrange = of_get_property(node, "bus-range", &len);
if (busrange == NULL || len != 8) {
- printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n",
+ pci_info(dev, "Can't get bus-range for PCI-PCI bridge %s\n",
node->full_name);
return;
}
if (ofpci_verbose)
- printk(" Bridge bus range [%u --> %u]\n",
- busrange[0], busrange[1]);
+ pci_info(dev, " Bridge bus range [%u --> %u]\n",
+ busrange[0], busrange[1]);
ranges = of_get_property(node, "ranges", &len);
simba = 0;
@@ -454,8 +455,8 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm,
bus = pci_add_new_bus(dev->bus, dev, busrange[0]);
if (!bus) {
- printk(KERN_ERR "Failed to create pci bus for %s\n",
- node->full_name);
+ pci_err(dev, "Failed to create pci bus for %s\n",
+ node->full_name);
return;
}
@@ -464,8 +465,8 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm,
bus->bridge_ctl = 0;
if (ofpci_verbose)
- printk(" Bridge ranges[%p] simba[%d]\n",
- ranges, simba);
+ pci_info(dev, " Bridge ranges[%p] simba[%d]\n",
+ ranges, simba);
/* parse ranges property, or cook one up by hand for Simba */
/* PCI #address-cells == 3 and #size-cells == 2 always */
@@ -487,10 +488,10 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm,
u64 start;
if (ofpci_verbose)
- printk(" RAW Range[%08x:%08x:%08x:%08x:%08x:%08x:"
- "%08x:%08x]\n",
- ranges[0], ranges[1], ranges[2], ranges[3],
- ranges[4], ranges[5], ranges[6], ranges[7]);
+ pci_info(dev, " RAW Range[%08x:%08x:%08x:%08x:%08x:%08x:"
+ "%08x:%08x]\n",
+ ranges[0], ranges[1], ranges[2], ranges[3],
+ ranges[4], ranges[5], ranges[6], ranges[7]);
flags = pci_parse_of_flags(ranges[0]);
size = GET_64BIT(ranges, 6);
@@ -510,14 +511,14 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm,
if (flags & IORESOURCE_IO) {
res = bus->resource[0];
if (res->flags) {
- printk(KERN_ERR "PCI: ignoring extra I/O range"
- " for bridge %s\n", node->full_name);
+ pci_err(dev, "ignoring extra I/O range"
+ " for bridge %s\n", node->full_name);
continue;
}
} else {
if (i >= PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES) {
- printk(KERN_ERR "PCI: too many memory ranges"
- " for bridge %s\n", node->full_name);
+ pci_err(dev, "too many memory ranges"
+ " for bridge %s\n", node->full_name);
continue;
}
res = bus->resource[i];
@@ -529,8 +530,8 @@ static void of_scan_pci_bridge(struct pci_pbm_info *pbm,
region.end = region.start + size - 1;
if (ofpci_verbose)
- printk(" Using flags[%08x] start[%016llx] size[%016llx]\n",
- flags, start, size);
+ pci_info(dev, " Using flags[%08x] start[%016llx] size[%016llx]\n",
+ flags, start, size);
pcibios_bus_to_resource(dev->bus, res, &region);
}
@@ -538,7 +539,7 @@ after_ranges:
sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
bus->number);
if (ofpci_verbose)
- printk(" bus name: %s\n", bus->name);
+ pci_info(dev, " bus name: %s\n", bus->name);
pci_of_scan_bus(pbm, node, bus);
}
@@ -553,14 +554,14 @@ static void pci_of_scan_bus(struct pci_pbm_info *pbm,
struct pci_dev *dev;
if (ofpci_verbose)
- printk("PCI: scan_bus[%s] bus no %d\n",
- node->full_name, bus->number);
+ pci_info(bus, "scan_bus[%s] bus no %d\n",
+ node->full_name, bus->number);
child = NULL;
prev_devfn = -1;
while ((child = of_get_next_child(node, child)) != NULL) {
if (ofpci_verbose)
- printk(" * %s\n", child->full_name);
+ pci_info(bus, " * %s\n", child->full_name);
reg = of_get_property(child, "reg", &reglen);
if (reg == NULL || reglen < 20)
continue;
@@ -581,8 +582,7 @@ static void pci_of_scan_bus(struct pci_pbm_info *pbm,
if (!dev)
continue;
if (ofpci_verbose)
- printk("PCI: dev header type: %x\n",
- dev->hdr_type);
+ pci_info(dev, "dev header type: %x\n", dev->hdr_type);
if (pci_is_bridge(dev))
of_scan_pci_bridge(pbm, child, dev);
@@ -624,6 +624,45 @@ static void pci_bus_register_of_sysfs(struct pci_bus *bus)
pci_bus_register_of_sysfs(child_bus);
}
+static void pci_claim_legacy_resources(struct pci_dev *dev)
+{
+ struct pci_bus_region region;
+ struct resource *p, *root, *conflict;
+
+ if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ return;
+
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
+ return;
+
+ p->name = "Video RAM area";
+ p->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+ region.start = 0xa0000UL;
+ region.end = region.start + 0x1ffffUL;
+ pcibios_bus_to_resource(dev->bus, p, &region);
+
+ root = pci_find_parent_resource(dev, p);
+ if (!root) {
+ pci_info(dev, "can't claim VGA legacy %pR: no compatible bridge window\n", p);
+ goto err;
+ }
+
+ conflict = request_resource_conflict(root, p);
+ if (conflict) {
+ pci_info(dev, "can't claim VGA legacy %pR: address conflict with %s %pR\n",
+ p, conflict->name, conflict);
+ goto err;
+ }
+
+ pci_info(dev, "VGA legacy framebuffer %pR\n", p);
+ return;
+
+err:
+ kfree(p);
+}
+
static void pci_claim_bus_resources(struct pci_bus *bus)
{
struct pci_bus *child_bus;
@@ -639,15 +678,13 @@ static void pci_claim_bus_resources(struct pci_bus *bus)
continue;
if (ofpci_verbose)
- printk("PCI: Claiming %s: "
- "Resource %d: %016llx..%016llx [%x]\n",
- pci_name(dev), i,
- (unsigned long long)r->start,
- (unsigned long long)r->end,
- (unsigned int)r->flags);
+ pci_info(dev, "Claiming Resource %d: %pR\n",
+ i, r);
pci_claim_resource(dev, i);
}
+
+ pci_claim_legacy_resources(dev);
}
list_for_each_entry(child_bus, &bus->children, node)
@@ -687,6 +724,7 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
pci_bus_register_of_sysfs(bus);
pci_claim_bus_resources(bus);
+
pci_bus_add_devices(bus);
return bus;
}
@@ -713,9 +751,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
}
if (cmd != oldcmd) {
- printk(KERN_DEBUG "PCI: Enabling device: (%s), cmd %x\n",
- pci_name(dev), cmd);
- /* Enable the appropriate bits in the PCI command register. */
+ pci_info(dev, "enabling device (%04x -> %04x)\n", oldcmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
@@ -1075,8 +1111,8 @@ static void pci_bus_slot_names(struct device_node *node, struct pci_bus *bus)
sp = prop->names;
if (ofpci_verbose)
- printk("PCI: Making slots for [%s] mask[0x%02x]\n",
- node->full_name, mask);
+ pci_info(bus, "Making slots for [%s] mask[0x%02x]\n",
+ node->full_name, mask);
i = 0;
while (mask) {
@@ -1089,12 +1125,12 @@ static void pci_bus_slot_names(struct device_node *node, struct pci_bus *bus)
}
if (ofpci_verbose)
- printk("PCI: Making slot [%s]\n", sp);
+ pci_info(bus, "Making slot [%s]\n", sp);
pci_slot = pci_create_slot(bus, i, sp, NULL);
if (IS_ERR(pci_slot))
- printk(KERN_ERR "PCI: pci_create_slot returned %ld\n",
- PTR_ERR(pci_slot));
+ pci_err(bus, "pci_create_slot returned %ld\n",
+ PTR_ERR(pci_slot));
sp += strlen(sp) + 1;
mask &= ~this_bit;
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 04:17:11 +0000