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Allow the DRM to attach to a "drmsub" device. This will be provided by the

Browse source 
i810 AGP module, working around the limitation of one driver per
    device.
Obtained from: i865-0-1-branch
This commit is contained in:
Eric Anholt 2003-10-02 04:07:03 +00:00
parent 8fe6a0d6c9
commit 4a55e75e97
2 changed files with 32 additions and 8 deletions
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20
bsd-core/drm_drv.c
View file

@ -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,

20
bsd/drm_drv.h
View file

@ -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,