diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 07:51:49 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 07:51:49 -0700 |
commit | 1dfd166e93f98892aa4427069a23ed73259983c8 (patch) | |
tree | c70a347b963091b99bd16842537153fa36e5c0e9 /arch/sh/drivers/pci/pci.c | |
parent | 8e775167d54e6521e7cdbc03ee7ec42a8c67b49a (diff) | |
parent | 8df399018df120d28f89fda6f2515cc6e096e43d (diff) |
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.c | 43 |
1 files changed, 8 insertions, 35 deletions
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 1e9598d2bbf..60ee09a4e12 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; } |