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path: root/drivers/pci/setup-bus.c
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Diffstat (limited to 'drivers/pci/setup-bus.c')
-rw-r--r--drivers/pci/setup-bus.c85
1 files changed, 59 insertions, 26 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 8ddb918f5f5..3abbfad9dda 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -27,13 +27,6 @@
#include <linux/slab.h>
-#define DEBUG_CONFIG 1
-#if DEBUG_CONFIG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
static void pbus_assign_resources_sorted(struct pci_bus *bus)
{
struct pci_dev *dev;
@@ -81,8 +74,8 @@ void pci_setup_cardbus(struct pci_bus *bus)
struct pci_dev *bridge = bus->self;
struct pci_bus_region region;
- printk("PCI: Bus %d, cardbus bridge: %s\n",
- bus->number, pci_name(bridge));
+ dev_info(&bridge->dev, "CardBus bridge, secondary bus %04x:%02x\n",
+ pci_domain_nr(bus), bus->number);
pcibios_resource_to_bus(bridge, &region, bus->resource[0]);
if (bus->resource[0]->flags & IORESOURCE_IO) {
@@ -90,7 +83,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
* The IO resource is allocated a range twice as large as it
* would normally need. This allows us to set both IO regs.
*/
- printk(KERN_INFO " IO window: 0x%08lx-0x%08lx\n",
+ dev_info(&bridge->dev, " IO window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
pci_write_config_dword(bridge, PCI_CB_IO_BASE_0,
@@ -101,7 +94,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
pcibios_resource_to_bus(bridge, &region, bus->resource[1]);
if (bus->resource[1]->flags & IORESOURCE_IO) {
- printk(KERN_INFO " IO window: 0x%08lx-0x%08lx\n",
+ dev_info(&bridge->dev, " IO window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
pci_write_config_dword(bridge, PCI_CB_IO_BASE_1,
@@ -112,7 +105,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
pcibios_resource_to_bus(bridge, &region, bus->resource[2]);
if (bus->resource[2]->flags & IORESOURCE_MEM) {
- printk(KERN_INFO " PREFETCH window: 0x%08lx-0x%08lx\n",
+ dev_info(&bridge->dev, " PREFETCH window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_0,
@@ -123,7 +116,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
pcibios_resource_to_bus(bridge, &region, bus->resource[3]);
if (bus->resource[3]->flags & IORESOURCE_MEM) {
- printk(KERN_INFO " MEM window: 0x%08lx-0x%08lx\n",
+ dev_info(&bridge->dev, " MEM window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_1,
@@ -151,7 +144,8 @@ static void pci_setup_bridge(struct pci_bus *bus)
struct pci_bus_region region;
u32 l, bu, lu, io_upper16;
- DBG(KERN_INFO "PCI: Bridge: %s\n", pci_name(bridge));
+ dev_info(&bridge->dev, "PCI bridge, secondary bus %04x:%02x\n",
+ pci_domain_nr(bus), bus->number);
/* Set up the top and bottom of the PCI I/O segment for this bus. */
pcibios_resource_to_bus(bridge, &region, bus->resource[0]);
@@ -162,7 +156,7 @@ static void pci_setup_bridge(struct pci_bus *bus)
l |= region.end & 0xf000;
/* Set up upper 16 bits of I/O base/limit. */
io_upper16 = (region.end & 0xffff0000) | (region.start >> 16);
- DBG(KERN_INFO " IO window: %04lx-%04lx\n",
+ dev_info(&bridge->dev, " IO window: %#04lx-%#04lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
}
@@ -170,7 +164,7 @@ static void pci_setup_bridge(struct pci_bus *bus)
/* Clear upper 16 bits of I/O base/limit. */
io_upper16 = 0;
l = 0x00f0;
- DBG(KERN_INFO " IO window: disabled.\n");
+ dev_info(&bridge->dev, " IO window: disabled\n");
}
/* Temporarily disable the I/O range before updating PCI_IO_BASE. */
pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, 0x0000ffff);
@@ -185,13 +179,13 @@ static void pci_setup_bridge(struct pci_bus *bus)
if (bus->resource[1]->flags & IORESOURCE_MEM) {
l = (region.start >> 16) & 0xfff0;
l |= region.end & 0xfff00000;
- DBG(KERN_INFO " MEM window: 0x%08lx-0x%08lx\n",
+ dev_info(&bridge->dev, " MEM window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
}
else {
l = 0x0000fff0;
- DBG(KERN_INFO " MEM window: disabled.\n");
+ dev_info(&bridge->dev, " MEM window: disabled\n");
}
pci_write_config_dword(bridge, PCI_MEMORY_BASE, l);
@@ -208,13 +202,13 @@ static void pci_setup_bridge(struct pci_bus *bus)
l |= region.end & 0xfff00000;
bu = upper_32_bits(region.start);
lu = upper_32_bits(region.end);
- DBG(KERN_INFO " PREFETCH window: 0x%016llx-0x%016llx\n",
+ dev_info(&bridge->dev, " PREFETCH window: %#016llx-%#016llx\n",
(unsigned long long)region.start,
(unsigned long long)region.end);
}
else {
l = 0x0000fff0;
- DBG(KERN_INFO " PREFETCH window: disabled.\n");
+ dev_info(&bridge->dev, " PREFETCH window: disabled\n");
}
pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l);
@@ -358,12 +352,12 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long
continue;
r_size = r->end - r->start + 1;
/* For bridges size != alignment */
- align = (i < PCI_BRIDGE_RESOURCES) ? r_size : r->start;
+ align = resource_alignment(r);
order = __ffs(align) - 20;
if (order > 11) {
- printk(KERN_WARNING "PCI: region %s/%d "
- "too large: 0x%016llx-0x%016llx\n",
- pci_name(dev), i,
+ dev_warn(&dev->dev, "BAR %d bad alignment %llx: "
+ "%#016llx-%#016llx\n", i,
+ (unsigned long long)align,
(unsigned long long)r->start,
(unsigned long long)r->end);
r->flags = 0;
@@ -529,14 +523,48 @@ void __ref pci_bus_assign_resources(struct pci_bus *bus)
break;
default:
- printk(KERN_INFO "PCI: not setting up bridge %s "
- "for bus %d\n", pci_name(dev), b->number);
+ dev_info(&dev->dev, "not setting up bridge for bus "
+ "%04x:%02x\n", pci_domain_nr(b), b->number);
break;
}
}
}
EXPORT_SYMBOL(pci_bus_assign_resources);
+static void pci_bus_dump_res(struct pci_bus *bus)
+{
+ int i;
+
+ for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
+ struct resource *res = bus->resource[i];
+ if (!res)
+ continue;
+
+ printk(KERN_INFO "bus: %02x index %x %s: [%llx, %llx]\n",
+ bus->number, i,
+ (res->flags & IORESOURCE_IO) ? "io port" : "mmio",
+ (unsigned long long) res->start,
+ (unsigned long long) res->end);
+ }
+}
+
+static void pci_bus_dump_resources(struct pci_bus *bus)
+{
+ struct pci_bus *b;
+ struct pci_dev *dev;
+
+
+ pci_bus_dump_res(bus);
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ b = dev->subordinate;
+ if (!b)
+ continue;
+
+ pci_bus_dump_resources(b);
+ }
+}
+
void __init
pci_assign_unassigned_resources(void)
{
@@ -552,4 +580,9 @@ pci_assign_unassigned_resources(void)
pci_bus_assign_resources(bus);
pci_enable_bridges(bus);
}
+
+ /* dump the resource on buses */
+ list_for_each_entry(bus, &pci_root_buses, node) {
+ pci_bus_dump_resources(bus);
+ }
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 12:46:54 +0000