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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-08-06 05:55:10 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-08-10 00:20:20 +0200 |
| commit | c17c2f892e23a3c70281a4e79bd7c2c226b1a561 (patch) | |
| tree | 73e048ae853103479e3ba747809fc8c38f6b7de8 /include/drm/drmP.h | |
| parent | Merge remote branch 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next into d... (diff) | |
| download | linux-c17c2f892e23a3c70281a4e79bd7c2c226b1a561.tar.xz linux-c17c2f892e23a3c70281a4e79bd7c2c226b1a561.zip | |
drm: Fix support for PCI domains
(For some reason I thought that went in ages ago ...)
This fixes support for PCI domains in what should hopefully be a backward
compatible way along with a change to libdrm.
When the interface version is set to 1.4, we assume userspace understands
domains and the world is at peace. We thus pass proper domain numbers
instead of 0 to userspace.
The newer libdrm will then try 1.4 first, and fallback to 1.1, along with
ignoring domains in the later case (well, except on alpha of course)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drmP.h')
| -rw-r--r-- | include/drm/drmP.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h index e2a4da7d7fab..2a512bc0d4ab 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1075,7 +1075,6 @@ static __inline__ int drm_core_check_feature(struct drm_device *dev, return ((dev->driver->driver_features & feature) ? 1 : 0); } - static inline int drm_dev_to_irq(struct drm_device *dev) { if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) @@ -1084,11 +1083,22 @@ static inline int drm_dev_to_irq(struct drm_device *dev) return dev->pdev->irq; } -#ifdef __alpha__ -#define drm_get_pci_domain(dev) dev->hose->index -#else -#define drm_get_pci_domain(dev) 0 -#endif +static inline int drm_get_pci_domain(struct drm_device *dev) +{ + if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) + return 0; + +#ifndef __alpha__ + /* For historical reasons, drm_get_pci_domain() is busticated + * on most archs and has to remain so for userspace interface + * < 1.4, except on alpha which was right from the beginning + */ + if (dev->if_version < 0x10004) + return 0; +#endif /* __alpha__ */ + + return pci_domain_nr(dev->pdev->bus); +} #if __OS_HAS_AGP static inline int drm_core_has_AGP(struct drm_device *dev) |