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| author | Dave Airlie <airlied@redhat.com> | 2011-03-01 14:32:27 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-03-01 15:01:20 +1000 |
| commit | 486af1896f3a4a388410215c5a2014b9d09a79f5 (patch) | |
| tree | bf3a29e4b2e9004ee80269944309fcfdf05abaa1 /drivers/gpu/drm/radeon/radeon_kms.c | |
| parent | 91132d6bb6481da7c8280905a5db424885c458d0 (diff) | |
| download | kernel_samsung_smdk4412-486af1896f3a4a388410215c5a2014b9d09a79f5.zip kernel_samsung_smdk4412-486af1896f3a4a388410215c5a2014b9d09a79f5.tar.gz kernel_samsung_smdk4412-486af1896f3a4a388410215c5a2014b9d09a79f5.tar.bz2 | |
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/gpu/drm/radeon/radeon_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 4057ebf..68a7b22 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; |