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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-24 21:06:40 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-24 21:06:40 +0200 |
| commit | 98b98d316349e9a028e632629fe813d07fa5afdd (patch) | |
| tree | caaf6a662a86c5e2a418f0929ca05f0748803ac5 /drivers/pci | |
| parent | Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 (diff) | |
| parent | Merge branch 'drm-radeon-next' of /ssd/git/drm-radeon-next into drm-core-next (diff) | |
| download | linux-98b98d316349e9a028e632629fe813d07fa5afdd.tar.xz linux-98b98d316349e9a028e632629fe813d07fa5afdd.zip | |
Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (169 commits)
drivers/gpu/drm/radeon/atom.c: fix warning
drm/radeon/kms: bump kms version number
drm/radeon/kms: properly set num banks for fusion asics
drm/radeon/kms/atom: move dig phy init out of modesetting
drm/radeon/kms/cayman: fix typo in register mask
drm/radeon/kms: fix typo in spread spectrum code
drm/radeon/kms: fix tile_config value reported to userspace on cayman.
drm/radeon/kms: fix incorrect comparison in cayman setup code.
drm/radeon/kms: add wait idle ioctl for eg->cayman
drm/radeon/cayman: setup hdp to invalidate and flush when asked
drm/radeon/evergreen/btc/fusion: setup hdp to invalidate and flush when asked
agp/uninorth: Fix lockups with radeon KMS and >1x.
drm/radeon/kms: the SS_Id field in the LCD table if for LVDS only
drm/radeon/kms: properly set the CLK_REF bit for DCE3 devices
drm/radeon/kms: fixup eDP connector handling
drm/radeon/kms: bail early for eDP in hotplug callback
drm/radeon/kms: simplify hotplug handler logic
drm/radeon/kms: rewrite DP handling
drm/radeon/kms/atom: add support for setting DP panel mode
drm/radeon/kms: atombios.h updates for DP panel mode
...
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 22c9b27fdd8d..56098b3e17c0 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -3284,31 +3284,34 @@ static int pci_set_vga_state_arch(struct pci_dev *dev, bool decode, * @dev: the PCI device * @decode: true = enable decoding, false = disable decoding * @command_bits: PCI_COMMAND_IO and/or PCI_COMMAND_MEMORY - * @change_bridge: traverse ancestors and change bridges + * @change_bridge_flags: traverse ancestors and change bridges + * CHANGE_BRIDGE_ONLY / CHANGE_BRIDGE */ int pci_set_vga_state(struct pci_dev *dev, bool decode, - unsigned int command_bits, bool change_bridge) + unsigned int command_bits, u32 flags) { struct pci_bus *bus; struct pci_dev *bridge; u16 cmd; int rc; - WARN_ON(command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY)); + WARN_ON((flags & PCI_VGA_STATE_CHANGE_DECODES) & (command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY))); /* ARCH specific VGA enables */ - rc = pci_set_vga_state_arch(dev, decode, command_bits, change_bridge); + rc = pci_set_vga_state_arch(dev, decode, command_bits, flags); if (rc) return rc; - pci_read_config_word(dev, PCI_COMMAND, &cmd); - if (decode == true) - cmd |= command_bits; - else - cmd &= ~command_bits; - pci_write_config_word(dev, PCI_COMMAND, cmd); + if (flags & PCI_VGA_STATE_CHANGE_DECODES) { + pci_read_config_word(dev, PCI_COMMAND, &cmd); + if (decode == true) + cmd |= command_bits; + else + cmd &= ~command_bits; + pci_write_config_word(dev, PCI_COMMAND, cmd); + } - if (change_bridge == false) + if (!(flags & PCI_VGA_STATE_CHANGE_BRIDGE)) return 0; bus = dev->bus; |