drm/amdgpu: Fix vram recover doesn't work after whole GPU reset (v2)
commit6c032c37ac
upstream. v1: Vmbo->shadow is used to back vram bo up when vram lost. So that we should set shadow as vmbo->shadow to recover vmbo->bo v2: Modify if(vmbo->shadow) shadow = vmbo->shadow as if(!vmbo->shadow) continue; Fixes:e18aaea733
("drm/amdgpu: move shadow_list to amdgpu_bo_vm") Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Lin.Cao <lincao12@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -4503,7 +4503,11 @@ static int amdgpu_device_recover_vram(struct amdgpu_device *adev)
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dev_info(adev->dev, "recover vram bo from shadow start\n");
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mutex_lock(&adev->shadow_list_lock);
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list_for_each_entry(vmbo, &adev->shadow_list, shadow_list) {
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shadow = &vmbo->bo;
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/* If vm is compute context or adev is APU, shadow will be NULL */
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if (!vmbo->shadow)
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continue;
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shadow = vmbo->shadow;
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/* No need to recover an evicted BO */
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if (shadow->tbo.resource->mem_type != TTM_PL_TT ||
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shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||
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