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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 14:51:49 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 14:51:49 (GMT)
commit1dfd166e93f98892aa4427069a23ed73259983c8 (patch)
treec70a347b963091b99bd16842537153fa36e5c0e9 /arch/sh/drivers/pci/pci.c
parent8e775167d54e6521e7cdbc03ee7ec42a8c67b49a (diff)
parent8df399018df120d28f89fda6f2515cc6e096e43d (diff)
downloadlinux-1dfd166e93f98892aa4427069a23ed73259983c8.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (110 commits) sh: i2c-sh7760: Replase from ctrl_* to __raw_* sh: clkfwk: Shuffle around to match the intc split up. sh: clkfwk: modify for_each_frequency end condition sh: fix clk_get() error handling sh: clkfwk: Fix fault in frequency iterator. sh: clkfwk: Add a helper for rate rounding by divisor ranges. sh: clkfwk: Abstract rate rounding helper. sh: clkfwk: support clock remapping. sh: pci: Convert to upper/lower_32_bits() helpers. sh: mach-sdk7786: Add support for the FPGA SRAM. sh: Provide a generic SRAM pool for tiny memories. sh: pci: Support secondary FPGA-driven PCIe clocks on SDK7786. sh: pci: Support slot 4 routing on SDK7786. sh: Fix up PMB locking. sh: mach-sdk7786: Add support for fpga gpios. sh: use pr_fmt for clock framework, too. sh: remove name and id from struct clk sh: free-without-alloc fix for sh_mobile_lcdcfb sh: perf: Set up perf_max_events. sh: perf: Support SH-X3 hardware counters. ... Fix up trivial conflicts (perf_max_events got removed) in arch/sh/kernel/perf_event.c
Diffstat (limited to 'arch/sh/drivers/pci/pci.c')
-rw-r--r--arch/sh/drivers/pci/pci.c43
1 files changed, 8 insertions, 35 deletions
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 1e9598d..60ee09a 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -19,6 +19,7 @@
#include <linux/dma-debug.h>
#include <linux/io.h>
#include <linux/mutex.h>
+#include <linux/spinlock.h>
unsigned long PCIBIOS_MIN_IO = 0x0000;
unsigned long PCIBIOS_MIN_MEM = 0;
@@ -56,6 +57,11 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose)
}
}
+/*
+ * This interrupt-safe spinlock protects all accesses to PCI
+ * configuration space.
+ */
+DEFINE_RAW_SPINLOCK(pci_config_lock);
static DEFINE_MUTEX(pci_scan_mutex);
int __devinit register_pci_controller(struct pci_channel *hose)
@@ -233,40 +239,7 @@ void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
- u16 cmd, old_cmd;
- int idx;
- struct resource *r;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
- for (idx=0; idx < PCI_NUM_RESOURCES; idx++) {
- /* Only set up the requested stuff */
- if (!(mask & (1<<idx)))
- continue;
-
- r = &dev->resource[idx];
- if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
- continue;
- if ((idx == PCI_ROM_RESOURCE) &&
- (!(r->flags & IORESOURCE_ROM_ENABLE)))
- continue;
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available "
- "because of resource collisions\n",
- pci_name(dev));
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
- if (cmd != old_cmd) {
- printk("PCI: Enabling device %s (%04x -> %04x)\n",
- pci_name(dev), old_cmd, cmd);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
- return 0;
+ return pci_enable_resources(dev, mask);
}
/*
@@ -295,7 +268,7 @@ void __init pcibios_update_irq(struct pci_dev *dev, int irq)
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
}
-char * __devinit pcibios_setup(char *str)
+char * __devinit __weak pcibios_setup(char *str)
{
return str;
}