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authorTom Stellard <tstellar@gmail.com>2012-03-20 17:17:55 -0400
committerDave Airlie <airlied@redhat.com>2012-03-21 06:55:49 +0000
commit609c1e15a44c25f722fb93e18668da30179a172f (patch)
tree4fb8f7faf5d5bb5e7df05b4fd04d4028ba702152 /drivers/gpu/drm/radeon/radeon_kms.c
parentda0df92b57311aa1b26a2a90599ed16e1e968b90 (diff)
drm/radeon/kms: add info query for max pipes
The maximum number of pipes is needed by the user space compute driver to calculate the number of wavefronts per thread group. Signed-off-by: Tom Stellard <thomas.stellard@amd.com> 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.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 1986ebae1ef2..72d70eb04a17 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -264,6 +264,19 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
return -EINVAL;
value = RADEON_IB_VM_MAX_SIZE;
break;
+ case RADEON_INFO_MAX_PIPES:
+ if (rdev->family >= CHIP_CAYMAN)
+ value = rdev->config.cayman.max_pipes_per_simd;
+ else if (rdev->family >= CHIP_CEDAR)
+ value = rdev->config.evergreen.max_pipes;
+ else if (rdev->family >= CHIP_RV770)
+ value = rdev->config.rv770.max_pipes;
+ else if (rdev->family >= CHIP_R600)
+ value = rdev->config.r600.max_pipes;
+ else {
+ return -EINVAL;
+ }
+ break;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->request);
return -EINVAL;