diff options
| author | Eric Anholt <anholt@freebsd.org> | 2003-10-02 04:07:03 +0000 |
|---|---|---|
| committer | Eric Anholt <anholt@freebsd.org> | 2003-10-02 04:07:03 +0000 |
| commit | 4a55e75e97e39256d5cdb561cf01ff7df73fe664 (patch) | |
| tree | 2efed50db55a480faeaa970d58baa0fe8d684122 /bsd-core | |
| parent | 8fe6a0d6c9aae796cc1217794644b314a9960a43 (diff) | |
Allow the DRM to attach to a "drmsub" device. This will be provided by the
i810 AGP module, working around the limitation of one driver per
device.
Obtained from: i865-0-1-branch
Diffstat (limited to 'bsd-core')
| -rw-r--r-- | bsd-core/drm_drv.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c index 8bec4da3..8ff78b7b 100644 --- a/bsd-core/drm_drv.c +++ b/bsd-core/drm_drv.c @@ -222,10 +222,17 @@ static struct cdevsw DRM(cdevsw) = { static int DRM(probe)(device_t dev) { const char *s = NULL; + int pciid, vendor, device; + - int pciid=pci_get_devid(dev); - int vendor = (pciid & 0x0000ffff); - int device = (pciid & 0xffff0000) >> 16; + /* XXX: Cope with agp bridge device? */ + if (!strcmp(device_get_name(dev), "drmsub")) + pciid = pci_get_devid(device_get_parent(dev)); + else + pciid = pci_get_devid(dev); + + vendor = (pciid & 0x0000ffff); + device = (pciid & 0xffff0000) >> 16; s = DRM(find_description)(vendor, device); if (s) { @@ -651,7 +658,12 @@ static int DRM(init)( device_t nbdev ) unit = device_get_unit(nbdev); dev = device_get_softc(nbdev); memset( (void *)dev, 0, sizeof(*dev) ); - dev->device = nbdev; + + if (!strcmp(device_get_name(nbdev), "drmsub")) + dev->device = device_get_parent(nbdev); + else + dev->device = nbdev; + dev->devnode = make_dev( &DRM(cdevsw), unit, DRM_DEV_UID, |