[PATCH 17/25] drm/radeon/kms: always use writeback/events for fences on NI

[Alex Deucher]

Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
---
 drivers/gpu/drm/radeon/radeon_device.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index e353430..26091d6 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -228,6 +228,11 @@ int radeon_wb_init(struct radeon_device *rdev)
 				rdev->wb.use_event = true;
 		}
 	}
+	/* always use writeback/events on NI */
+	if (ASIC_IS_DCE5(rdev)) {
+		rdev->wb.enabled = true;
+		rdev->wb.use_event = true;
+	}
 
 	dev_info(rdev->dev, "WB %sabled\n", rdev->wb.enabled ? "en" : "dis");
 
-- 
1.7.1.1