From c6d5245d41de3a9786707b34189c41d6412fd0ba Mon Sep 17 00:00:00 2001
From: Leo Liu <leo.liu@amd.com>
Date: Thu, 18 Jul 2019 11:38:46 -0400
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@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 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 988c0adaca916..1cfc2620b2dd4 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -372,11 +372,8 @@ 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.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);
-- 
GitLab