diff options
Diffstat (limited to 'src/gallium/winsys/r600/drm/r600_drm.c')
| -rw-r--r-- | src/gallium/winsys/r600/drm/r600_drm.c | 65 |
1 files changed, 59 insertions, 6 deletions
diff --git a/src/gallium/winsys/r600/drm/r600_drm.c b/src/gallium/winsys/r600/drm/r600_drm.c index f5cd48d39c..cd0aa318be 100644 --- a/src/gallium/winsys/r600/drm/r600_drm.c +++ b/src/gallium/winsys/r600/drm/r600_drm.c @@ -45,6 +45,10 @@ #define RADEON_INFO_CLOCK_CRYSTAL_FREQ 0x9 #endif +#ifndef RADEON_INFO_NUM_BACKENDS +#define RADEON_INFO_NUM_BACKENDS 0xa +#endif + enum radeon_family r600_get_family(struct radeon *r600) { return r600->family; @@ -65,6 +69,17 @@ unsigned r600_get_clock_crystal_freq(struct radeon *radeon) return radeon->clock_crystal_freq; } +unsigned r600_get_num_backends(struct radeon *radeon) +{ + return radeon->num_backends; +} + +unsigned r600_get_minor_version(struct radeon *radeon) +{ + return radeon->minor_version; +} + + static int radeon_get_device(struct radeon *radeon) { struct drm_radeon_info info = {}; @@ -195,6 +210,26 @@ static int radeon_get_clock_crystal_freq(struct radeon *radeon) return 0; } + +static int radeon_get_num_backends(struct radeon *radeon) +{ + struct drm_radeon_info info; + uint32_t num_backends; + int r; + + radeon->device = 0; + info.request = RADEON_INFO_NUM_BACKENDS; + info.value = (uintptr_t)&num_backends; + r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info, + sizeof(struct drm_radeon_info)); + if (r) + return r; + + radeon->num_backends = num_backends; + return 0; +} + + static int radeon_init_fence(struct radeon *radeon) { radeon->fence = 1; @@ -211,6 +246,7 @@ static struct radeon *radeon_new(int fd, unsigned device) { struct radeon *radeon; int r; + drmVersionPtr version; radeon = calloc(1, sizeof(*radeon)); if (radeon == NULL) { @@ -219,13 +255,27 @@ static struct radeon *radeon_new(int fd, unsigned device) radeon->fd = fd; radeon->device = device; radeon->refcount = 1; - if (fd >= 0) { - r = radeon_get_device(radeon); - if (r) { - fprintf(stderr, "Failed to get device id\n"); - return radeon_decref(radeon); - } + + version = drmGetVersion(radeon->fd); + if (version->version_major != 2) { + fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is " + "only compatible with 2.x.x\n", __FUNCTION__, + version->version_major, version->version_minor, + version->version_patchlevel); + drmFreeVersion(version); + exit(1); } + + radeon->minor_version = version->version_minor; + + drmFreeVersion(version); + + r = radeon_get_device(radeon); + if (r) { + fprintf(stderr, "Failed to get device id\n"); + return radeon_decref(radeon); + } + radeon->family = radeon_family_from_device(radeon->device); if (radeon->family == CHIP_UNKNOWN) { fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device); @@ -278,6 +328,9 @@ static struct radeon *radeon_new(int fd, unsigned device) /* get the GPU counter frequency, failure is non fatal */ radeon_get_clock_crystal_freq(radeon); + if (radeon->minor_version >= 9) + radeon_get_num_backends(radeon); + radeon->bomgr = r600_bomgr_create(radeon, 1000000); if (radeon->bomgr == NULL) { return NULL; |