diff options
Diffstat (limited to 'libdrm/xf86drm.c')
| -rw-r--r-- | libdrm/xf86drm.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/libdrm/xf86drm.c b/libdrm/xf86drm.c index 3317ba5c..bcf562d5 100644 --- a/libdrm/xf86drm.c +++ b/libdrm/xf86drm.c @@ -87,6 +87,9 @@ #define DRM_MSG_VERBOSITY 3 +#define DRM_NODE_CONTROL 0 +#define DRM_NODE_RENDER 1 + static drmServerInfoPtr drm_server_info; void drmSetServerInfo(drmServerInfoPtr info) @@ -264,7 +267,7 @@ static int drmMatchBusID(const char *id1, const char *id2) * special file node with the major and minor numbers specified by \p dev and * parent directory if necessary and was called by root. */ -static int drmOpenDevice(long dev, int minor) +static int drmOpenDevice(long dev, int minor, int type) { stat_t st; char buf[64]; @@ -274,7 +277,7 @@ static int drmOpenDevice(long dev, int minor) uid_t user = DRM_DEV_UID; gid_t group = DRM_DEV_GID, serv_group; - sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor); + sprintf(buf, type ? DRM_DEV_NAME : DRM_CONTROL_DEV_NAME, DRM_DIR_NAME, minor); drmMsg("drmOpenDevice: node name is %s\n", buf); if (drm_server_info) { @@ -348,15 +351,15 @@ static int drmOpenDevice(long dev, int minor) * Calls drmOpenDevice() if \p create is set, otherwise assembles the device * name from \p minor and opens it. */ -static int drmOpenMinor(int minor, int create) +static int drmOpenMinor(int minor, int create, int type) { int fd; char buf[64]; if (create) - return drmOpenDevice(makedev(DRM_MAJOR, minor), minor); + return drmOpenDevice(makedev(DRM_MAJOR, minor), minor, type); - sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, minor); + sprintf(buf, type ? DRM_DEV_NAME : DRM_CONTROL_DEV_NAME, DRM_DIR_NAME, minor); if ((fd = open(buf, O_RDWR, 0)) >= 0) return fd; return -errno; @@ -379,7 +382,7 @@ int drmAvailable(void) int retval = 0; int fd; - if ((fd = drmOpenMinor(0, 1)) < 0) { + if ((fd = drmOpenMinor(0, 1, DRM_NODE_RENDER)) < 0) { #ifdef __linux__ /* Try proc for backward Linux compatibility */ if (!access("/proc/dri/0", R_OK)) @@ -420,7 +423,7 @@ static int drmOpenByBusid(const char *busid) drmMsg("drmOpenByBusid: Searching for BusID %s\n", busid); for (i = 0; i < DRM_MAX_MINOR; i++) { - fd = drmOpenMinor(i, 1); + fd = drmOpenMinor(i, 1, DRM_NODE_RENDER); drmMsg("drmOpenByBusid: drmOpenMinor returns %d\n", fd); if (fd >= 0) { sv.drm_di_major = 1; @@ -482,7 +485,7 @@ static int drmOpenByName(const char *name) * already in use. If it's in use it will have a busid assigned already. */ for (i = 0; i < DRM_MAX_MINOR; i++) { - if ((fd = drmOpenMinor(i, 1)) >= 0) { + if ((fd = drmOpenMinor(i, 1, DRM_NODE_RENDER)) >= 0) { if ((version = drmGetVersion(fd))) { if (!strcmp(version->name, name)) { drmFreeVersion(version); @@ -526,7 +529,7 @@ static int drmOpenByName(const char *name) if (*pt) { /* Found busid */ return drmOpenByBusid(++pt); } else { /* No busid */ - return drmOpenDevice(strtol(devstring, NULL, 0),i); + return drmOpenDevice(strtol(devstring, NULL, 0),i, DRM_NODE_RENDER); } } } @@ -576,6 +579,10 @@ int drmOpen(const char *name, const char *busid) return -1; } +int drmOpenControl(int minor) +{ + return drmOpenMinor(minor, 0, DRM_NODE_CONTROL); +} /** * Free the version information returned by drmGetVersion(). |