From: Boyuan Zhang <boyuan.zhang@amd.com>
Date: Wed, 30 May 2018 15:19:52 -0400
Subject: drm/amdgpu: add patch to jpeg ring
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Git-commit: b7fe681e35aaf8c844755297777bdceae030f6c3
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Add patch commands to jepg ring by calling set patch ring function.

v2: remove modifications on max_dw, buf_mask and ptr_mask, since we are
now using extra_dw for jpeg ring.

Signed-off-by: Boyuan Zhang <boyuan.zhang@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/vcn_v1_0.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -760,6 +760,13 @@ static int vcn_v1_0_start(struct amdgpu_
 	WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, 0);
 	WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL, 0x00000002L);
 
+	/* initialize wptr */
+	ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
+
+	/* copy patch commands to the jpeg ring */
+	vcn_v1_0_jpeg_ring_set_patch_ring(ring,
+		(ring->wptr + ring->max_dw * amdgpu_sched_hw_submission));
+
 	return 0;
 }