diff options
Diffstat (limited to 'linux-core/drmP.h')
| -rw-r--r-- | linux-core/drmP.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h index 167bef0f..24d8a23b 100644 --- a/linux-core/drmP.h +++ b/linux-core/drmP.h @@ -548,8 +548,10 @@ struct drm_driver { * * \param dev DRM device handle * - * \returns true if the card really is attached to AGP, false - * otherwise. + * \returns + * One of three values is returned depending on whether or not the + * card is absolutely \b not AGP (return of 0), absolutely \b is AGP + * (return of 1), or may or may not be AGP (return of 2). */ int (*device_is_agp) (struct drm_device * dev); @@ -1028,9 +1030,12 @@ static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, static __inline__ int drm_device_is_agp(drm_device_t *dev) { - if ( (dev->driver->device_is_agp != NULL) - && ! (*dev->driver->device_is_agp)( dev ) ) { - return 0; + if ( dev->driver->device_is_agp != NULL ) { + int err = (*dev->driver->device_is_agp)( dev ); + + if (err != 2) { + return err; + } } return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); |