drm/radeon: fix fence init after resume

Start with last signaled fence number instead
of last emitted one.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index a194a14..76c5b22 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -578,7 +578,7 @@ int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring)
        }
        rdev->fence_drv[ring].cpu_addr = &rdev->wb.wb[index/4];
        rdev->fence_drv[ring].gpu_addr = rdev->wb.gpu_addr + index;
-       radeon_fence_write(rdev, rdev->fence_drv[ring].sync_seq[ring], ring);
+       radeon_fence_write(rdev, atomic64_read(&rdev->fence_drv[ring].last_seq), ring);
        rdev->fence_drv[ring].initialized = true;
        dev_info(rdev->dev, "fence driver on ring %d use gpu addr 0x%016llx and cpu addr 0x%p\n",
                 ring, rdev->fence_drv[ring].gpu_addr, rdev->fence_drv[ring].cpu_addr);