diff options
author | Eric Anholt <anholt@freebsd.org> | 2003-10-23 02:23:31 +0000 |
---|---|---|
committer | Eric Anholt <anholt@freebsd.org> | 2003-10-23 02:23:31 +0000 |
commit | 06cb132e86dc4a04044c3c76725ba3037008ab34 (patch) | |
tree | 24525db4be133c43d9de9ac602d3ee44aaaa36cd /bsd-core | |
parent | 86e6325e5ab848c15c422f20133445fe6c1caa09 (diff) |
- Introduce a new ioctl, DRM_IOCTL_SET_VERSION. This ioctl allows the
server or client to notify the DRM that it expects a certain version of
the device dependent or device independent interface. If the major
doesn't match or minor is too large, EINVAL is returned. A major of -1
means that the requestor doesn't care about that portion of the
interface. The ioctl returns the actual versions in the same struct.
- Introduce DRM DI interface version 1.1. If the server requests version
1.1, then the DRM sets the unique itself according to the busid of the
device it probed, which may then be accessed as normal using getunique.
- Request version 1.1 in libdrm's drmOpenByBusID, allowing the X Server to
request based on a BusID. Introduce a wrapper for DRM_IOCTL_SET_VERSION
and bump libdrm minor version.
- Pass the busid in DRIScreenInit if libdrm can handle both a busid and
name. This allows drmOpenByBusID to be used to find the DRM instead of
just the driver name, which allows us in the future to tie a DRM more
strongly to the device it probed to. Introduce a function
DRICreatePCIBusID which creates a busid in the form pci:oooo:bb:dd.f
similar to linux's pci_name() function. This matches the format used by
the DRM in version 1.1. libdrm knows how to match both this format and
the old PCI:b:d:f format.
- Use the new DRICreatePCIBusID function in the *_dri.c to request the new,
more exact busid format.
Diffstat (limited to 'bsd-core')
-rw-r--r-- | bsd-core/drmP.h | 5 | ||||
-rw-r--r-- | bsd-core/drm_drv.c | 1 | ||||
-rw-r--r-- | bsd-core/drm_ioctl.c | 70 |
3 files changed, 73 insertions, 3 deletions
diff --git a/bsd-core/drmP.h b/bsd-core/drmP.h index b2e045e6..eec3faed 100644 --- a/bsd-core/drmP.h +++ b/bsd-core/drmP.h @@ -390,9 +390,6 @@ struct drm_device { extern int DRM(flags); - /* Driver support (drm_drv.h) */ -extern int DRM(version)( DRM_IOCTL_ARGS ); - /* Memory management support (drm_memory.h) */ extern void DRM(mem_init)(void); extern void DRM(mem_uninit)(void); @@ -491,6 +488,8 @@ extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev, /* Locking IOCTL support (drm_drv.h) */ extern int DRM(lock)(DRM_IOCTL_ARGS); extern int DRM(unlock)(DRM_IOCTL_ARGS); +extern int DRM(version)( DRM_IOCTL_ARGS ); +extern int DRM(setversion)( DRM_IOCTL_ARGS ); /* Misc. IOCTL support (drm_ioctl.h) */ extern int DRM(irq_busid)(DRM_IOCTL_ARGS); diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c index 582a4112..3f494694 100644 --- a/bsd-core/drm_drv.c +++ b/bsd-core/drm_drv.c @@ -135,6 +135,7 @@ static drm_ioctl_desc_t DRM(ioctls)[] = { [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 }, + [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { DRM(setversion), 0, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 }, [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(noop), 1, 1 }, diff --git a/bsd-core/drm_ioctl.c b/bsd-core/drm_ioctl.c index a195d0c4..50cf937d 100644 --- a/bsd-core/drm_ioctl.c +++ b/bsd-core/drm_ioctl.c @@ -79,6 +79,12 @@ int DRM(irq_busid)( DRM_IOCTL_ARGS ) #endif } +/* + * Beginning in revision 1.1 of the DRM interface, getunique will return + * a unique in the form pci:oooo:bb:dd.f (o=domain, b=bus, d=device, f=function) + * before setunique has been called. The format for the bus-specific part of + * the unique is not defined for any other bus. + */ int DRM(getunique)( DRM_IOCTL_ARGS ) { DRM_DEVICE; @@ -97,6 +103,9 @@ int DRM(getunique)( DRM_IOCTL_ARGS ) return 0; } +/* Deprecated in DRM version 1.1, and will return EBUSY when setversion has + * requested version 1.1 or greater. + */ int DRM(setunique)( DRM_IOCTL_ARGS ) { DRM_DEVICE; @@ -125,6 +134,26 @@ int DRM(setunique)( DRM_IOCTL_ARGS ) } +static int +DRM(set_busid)(drm_device_t *dev) +{ + + if (dev->unique != NULL) + return EBUSY; + + dev->unique_len = 20; + dev->unique = DRM(alloc)(dev->unique_len + 1, DRM_MEM_DRIVER); + if (dev->unique == NULL) + return ENOMEM; + + /* XXX Fix domain number (alpha hoses) */ + snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%1x", + 0, pci_get_bus(dev->device), pci_get_slot(dev->device), + pci_get_function(dev->device)); + + return 0; +} + int DRM(getmap)( DRM_IOCTL_ARGS ) { DRM_DEVICE; @@ -231,6 +260,47 @@ int DRM(getstats)( DRM_IOCTL_ARGS ) return 0; } +int DRM(setversion)(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_set_version_t sv; + drm_set_version_t retv; + + DRM_COPY_FROM_USER_IOCTL(sv, (drm_set_version_t *)data, sizeof(sv)); + + retv.drm_di_major = 1; + retv.drm_di_minor = 1; + retv.drm_dd_major = DRIVER_MAJOR; + retv.drm_dd_minor = DRIVER_MINOR; + + DRM_COPY_TO_USER_IOCTL((drm_set_version_t *)data, retv, sizeof(sv)); + + if (sv.drm_di_major != -1) { + if (sv.drm_di_major != 1 || sv.drm_di_minor < 0) + return EINVAL; + if (sv.drm_di_minor > 1) + return EINVAL; + if (sv.drm_di_minor >= 1) { + /* + * Version 1.1 includes tying of DRM to specific device + */ + DRM(set_busid)(dev); + } + } + + if (sv.drm_dd_major != -1) { + if (sv.drm_dd_major != DRIVER_MAJOR || sv.drm_dd_minor < 0) + return EINVAL; + if (sv.drm_dd_minor > DRIVER_MINOR) + return EINVAL; +#ifdef DRIVER_SETVERSION + DRIVER_SETVERSION(dev, sv); +#endif + } + return 0; +} + + int DRM(noop)(DRM_IOCTL_ARGS) { DRM_DEBUG("\n"); |