drm/radeon: fix UVD IRQ support on SI

commit b927e1c20462c1ad9caf4c4fa3a30e838a2d4037 upstream.

Otherwise decoding isn't really useable.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=71448

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 3cf38ff09e70..03add5d5542e 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -5159,6 +5159,10 @@ restart_ih:
                                 break;
                         }
                         break;
+                case 124: /* UVD */
+                        DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
+                        radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
+                        break;
                 case 146:
                 case 147:
                         dev_err(rdev->dev, "GPU fault detected: %d 0x%08x\n", src_id, src_data);