Re: [PATCH] drm/amdgpu/: use VCN firmware offset for cache window

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Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>

From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Liu, Leo <Leo.Liu@xxxxxxx>
Sent: Thursday, July 18, 2019 11:46 AM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Liu, Leo
Subject: [PATCH] drm/amdgpu/: use VCN firmware offset for cache window
 
Since we are using the signed FW now, and also using PSP firmware loading,
but it's still potential to break driver when loading FW directly
instead of PSP, so we should add offset.

Signed-off-by: Leo Liu <leo.liu@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index 3cb62e448a37..88e3dedcf926 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -379,11 +379,8 @@ static void vcn_v2_0_mc_resume(struct amdgpu_device *adev)
                 WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
                         upper_32_bits(adev->vcn.inst->gpu_addr));
                 offset = size;
-               /* No signed header for now from firmware
                 WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
                         AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
-               */
-               WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
         }
 
         WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);
--
2.20.1

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