drm/radeon: add basic zmask/hiz support (v4)

[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / radeon / radeon_kms.c

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index dd0a78e954a8a3403728f19072e48f0db445790a..e5b70542738964f6002f8ce8dc04e9efbe8b4299 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -159,6 +159,15 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
                        DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
                        return -EINVAL;
                }
+       case RADEON_INFO_WANT_HYPERZ:
+               mutex_lock(&dev->struct_mutex);
+               if (rdev->hyperz_filp)
+                       value = 0;
+               else {
+                       rdev->hyperz_filp = filp;
+                       value = 1;
+               }
+               mutex_unlock(&dev->struct_mutex);
                break;
        default:
                DRM_DEBUG_KMS("Invalid request %d\n", info->request);
@@ -199,9 +208,11 @@ void radeon_driver_postclose_kms(struct drm_device *dev,
 void radeon_driver_preclose_kms(struct drm_device *dev,
                                struct drm_file *file_priv)
 {
+       struct radeon_device *rdev = dev->dev_private;
+       if (rdev->hyperz_filp == file_priv)
+               rdev->hyperz_filp = NULL;
 }
 
-
 /*
  * VBlank related functions.
  */