drm/radeon: add GET_PARAM/INFO support for Z pipes

Needed for occlusion queries on rv530 chips.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 46645f3e0328..2882f40d5ec5 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -3081,6 +3081,9 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
         case RADEON_PARAM_NUM_GB_PIPES:
                 value = dev_priv->num_gb_pipes;
                 break;
+        case RADEON_PARAM_NUM_Z_PIPES:
+                value = dev_priv->num_z_pipes;
+                break;
         default:
                 DRM_DEBUG("Invalid parameter %d\n", param->param);
                 return -EINVAL;