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From e65e870537e516ca5996945ce3383658ac95b3fd Mon Sep 17 00:00:00 2001
From: James Zhu <James.Zhu@amd.com>
Date: Wed, 12 Dec 2018 14:48:33 -0500
Subject: [PATCH 0947/2940] drm/amdgpu/vcn:Update ring point to JPEG before
init JPEG wptr
It is a bug fix.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 775204315888..5df6ea9e87e0 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -1088,7 +1088,8 @@ static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
- /* initialize wptr */
+ /* initialize JPEG wptr */
+ ring = &adev->vcn.ring_jpeg;
ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
/* copy patch commands to the jpeg ring */
--
2.17.1
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