diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-03-01 07:32:27 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-03-01 08:01:20 +0300 |
| commit | 486af1896f3a4a388410215c5a2014b9d09a79f5 (patch) | |
| tree | bf3a29e4b2e9004ee80269944309fcfdf05abaa1 /drivers | |
| parent | 91132d6bb6481da7c8280905a5db424885c458d0 (diff) | |
| download | linux-486af1896f3a4a388410215c5a2014b9d09a79f5.tar.xz | |
drm/radeon: add new getparam for number of backends.
This allows userspace to work out how many DBs there are
for conditional rendering to work.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 11 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 6c1161505582..63d2de8771dc 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -49,7 +49,7 @@ * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500) * 2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs * 2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query - * 2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg + * 2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query */ #define KMS_DRIVER_MAJOR 2 #define KMS_DRIVER_MINOR 9 diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 4057ebf5195d..68a7b22c1fe9 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -205,6 +205,17 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) /* return clock value in KHz */ value = rdev->clock.spll.reference_freq * 10; break; + case RADEON_INFO_NUM_BACKENDS: + if (rdev->family >= CHIP_CEDAR) + value = rdev->config.evergreen.max_backends; + else if (rdev->family >= CHIP_RV770) + value = rdev->config.rv770.max_backends; + else if (rdev->family >= CHIP_R600) + value = rdev->config.r600.max_backends; + else { + return -EINVAL; + } + break; default: DRM_DEBUG_KMS("Invalid request %d\n", info->request); return -EINVAL; |