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From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 27 Mar 2018 17:05:19 -0500
Subject: drm/amdgpu/uvd7: add emit_reg_write_reg_wait ring callback
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Git-commit: 1ab0c9a75f66293a8ea719cc96ae4141218eb0e4
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

This adds support for writing and reading back using the
helper since the engines doesn't have a oneshot packet.

Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
@@ -1702,6 +1702,7 @@ static const struct amdgpu_ring_funcs uv
 	.end_use = amdgpu_uvd_ring_end_use,
 	.emit_wreg = uvd_v7_0_enc_ring_emit_wreg,
 	.emit_reg_wait = uvd_v7_0_enc_ring_emit_reg_wait,
+	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
 };
 
 static void uvd_v7_0_set_ring_funcs(struct amdgpu_device *adev)