diff options
Diffstat (limited to 'drivers/char/drm/drmP.h')
| -rw-r--r-- | drivers/char/drm/drmP.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h index 8e060a2cc3db..a9b61864feba 100644 --- a/drivers/char/drm/drmP.h +++ b/drivers/char/drm/drmP.h @@ -586,7 +586,22 @@ struct drm_driver { int (*kernel_context_switch)(struct drm_device *dev, int old, int new); void (*kernel_context_switch_unlock)(struct drm_device *dev, drm_lock_t *lock); int (*vblank_wait)(struct drm_device *dev, unsigned int *sequence); + + /** + * Called by \c drm_device_is_agp. Typically used to determine if a + * card is really attached to AGP or not. + * + * \param dev DRM device handle + * + * \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); + /* these have to be filled in */ + int (*postinit)(struct drm_device *, unsigned long flags); irqreturn_t (*irq_handler)( DRM_IRQ_ARGS ); void (*irq_preinstall)(struct drm_device *dev); @@ -1041,6 +1056,19 @@ static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, unsig return NULL; } +static __inline__ int drm_device_is_agp(drm_device_t *dev) +{ + 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); +} + static __inline__ void drm_core_dropmap(struct drm_map *map) { } |