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, 1 deletions

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index c47579dcafa1..053f4ec397f7 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -448,6 +448,7 @@ void r300_gpu_init(struct radeon_device *rdev)
                 /* rv350,rv370,rv380 */
                 rdev->num_gb_pipes = 1;
         }
+        rdev->num_z_pipes = 1;
         gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
         switch (rdev->num_gb_pipes) {
         case 2:
@@ -486,7 +487,8 @@ void r300_gpu_init(struct radeon_device *rdev)
                 printk(KERN_WARNING "Failed to wait MC idle while "
                        "programming pipes. Bad things might happen.\n");
         }
-        DRM_INFO("radeon: %d pipes initialized.\n", rdev->num_gb_pipes);
+        DRM_INFO("radeon: %d quad pipes, %d Z pipes initialized.\n",
+                 rdev->num_gb_pipes, rdev->num_z_pipes);
 }
 
 int r300_ga_reset(struct radeon_device *rdev)