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From 4bb56c09293782eb85e5e7643b66496a6a119e34 Mon Sep 17 00:00:00 2001
From: Feifei Xu <Feifei.Xu@amd.com>
Date: Tue, 6 Feb 2018 12:29:23 +0800
Subject: [PATCH 4385/5725] drm/amdgpu: Fix hardcoded base offset of vram pages
In gmc_v9_0_vram_gtt_location(),the vram_base_offset is hardcoded
to 0 in dGPU. Fix it by reading mmMC_VM_FB_OFFSET or return
zfb_phys_addr if ZFB is enabled.
Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 35cea8d..3c0a0c3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -692,10 +692,7 @@ static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
amdgpu_device_vram_location(adev, &adev->gmc, base);
amdgpu_device_gart_location(adev, mc);
/* base offset of vram pages */
- if (adev->flags & AMD_IS_APU)
- adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
- else
- adev->vm_manager.vram_base_offset = 0;
+ adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
}
/**
--
2.7.4
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