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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-11 21:50:26 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-11 21:50:26 -0500
commit7b67e751479d50b7f84d1a3cc5216eed5e534b66 (patch)
treea1a6746857cf65f04dde739fe271bf4143d55eaf /arch/sh/drivers
parent9f13a1fd452f11c18004ba2422a6384b424ec8a9 (diff)
parent76ccc297018d25d55b789bbd508861ef1e2cdb0c (diff)
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
Diffstat (limited to 'arch/sh/drivers')
-rw-r--r--arch/sh/drivers/pci/pci.c41
1 files changed, 10 insertions, 31 deletions
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 11aaf2fdec84..8f18dd090a66 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -36,9 +36,15 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose)
36{ 36{
37 static int next_busno; 37 static int next_busno;
38 static int need_domain_info; 38 static int need_domain_info;
39 LIST_HEAD(resources);
40 int i;
39 struct pci_bus *bus; 41 struct pci_bus *bus;
40 42
41 bus = pci_scan_bus(next_busno, hose->pci_ops, hose); 43 for (i = 0; i < hose->nr_resources; i++)
44 pci_add_resource(&resources, hose->resources + i);
45
46 bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
47 &resources);
42 hose->bus = bus; 48 hose->bus = bus;
43 49
44 need_domain_info = need_domain_info || hose->index; 50 need_domain_info = need_domain_info || hose->index;
@@ -55,6 +61,8 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose)
55 pci_bus_size_bridges(bus); 61 pci_bus_size_bridges(bus);
56 pci_bus_assign_resources(bus); 62 pci_bus_assign_resources(bus);
57 pci_enable_bridges(bus); 63 pci_enable_bridges(bus);
64 } else {
65 pci_free_resource_list(&resources);
58 } 66 }
59} 67}
60 68
@@ -162,16 +170,8 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev,
162 */ 170 */
163void __devinit pcibios_fixup_bus(struct pci_bus *bus) 171void __devinit pcibios_fixup_bus(struct pci_bus *bus)
164{ 172{
165 struct pci_dev *dev = bus->self; 173 struct pci_dev *dev;
166 struct list_head *ln; 174 struct list_head *ln;
167 struct pci_channel *hose = bus->sysdata;
168
169 if (!dev) {
170 int i;
171
172 for (i = 0; i < hose->nr_resources; i++)
173 bus->resource[i] = hose->resources + i;
174 }
175 175
176 for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) { 176 for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
177 dev = pci_dev_b(ln); 177 dev = pci_dev_b(ln);
@@ -243,27 +243,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
243 return pci_enable_resources(dev, mask); 243 return pci_enable_resources(dev, mask);
244} 244}
245 245
246/*
247 * If we set up a device for bus mastering, we need to check and set
248 * the latency timer as it may not be properly set.
249 */
250static unsigned int pcibios_max_latency = 255;
251
252void pcibios_set_master(struct pci_dev *dev)
253{
254 u8 lat;
255 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
256 if (lat < 16)
257 lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
258 else if (lat > pcibios_max_latency)
259 lat = pcibios_max_latency;
260 else
261 return;
262 printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n",
263 pci_name(dev), lat);
264 pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
265}
266
267void __init pcibios_update_irq(struct pci_dev *dev, int irq) 246void __init pcibios_update_irq(struct pci_dev *dev, int irq)
268{ 247{
269 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); 248 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);