From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2210BC7EE24 for ; Mon, 15 May 2023 17:25:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243672AbjEORZA (ORCPT ); Mon, 15 May 2023 13:25:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244138AbjEORYd (ORCPT ); Mon, 15 May 2023 13:24:33 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E1A6111B51 for ; Mon, 15 May 2023 10:23:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id AC8A061EDA for ; Mon, 15 May 2023 17:23:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDD08C433EF; Mon, 15 May 2023 17:23:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684171407; bh=PjmJWPFcpTMDaeSb9ywvtzIO9lzGkQvW3EjR+EdjbA4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zq5pFjNA1Lj6E8TkqWVq7GICG3Up3g5lKt8TGzbbICkBDoQeWQ9XUFCcWDcR5baCV f2ryn5BuEm20+dPm3dXln2kafdOvDiqcBWT7RiBFGHEReR/EWuGlK7XFiEJIv8hACm 0dGMu3YTGOx5cZDV5/iDa1lr6fcJgKxDMuaXDMaI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Christian=20K=C3=B6nig?= , "Lin.Cao" , Alex Deucher Subject: [PATCH 6.2 198/242] drm/amdgpu: Fix vram recover doesnt work after whole GPU reset (v2) Date: Mon, 15 May 2023 18:28:44 +0200 Message-Id: <20230515161727.885993490@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161721.802179972@linuxfoundation.org> References: <20230515161721.802179972@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Lin.Cao commit 6c032c37ac3ef3b7df30937c785ecc4da428edc0 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: e18aaea733da ("drm/amdgpu: move shadow_list to amdgpu_bo_vm") Reviewed-by: Christian König Signed-off-by: Lin.Cao Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4503,7 +4503,11 @@ static int amdgpu_device_recover_vram(st dev_info(adev->dev, "recover vram bo from shadow start\n"); mutex_lock(&adev->shadow_list_lock); list_for_each_entry(vmbo, &adev->shadow_list, shadow_list) { - shadow = &vmbo->bo; + /* If vm is compute context or adev is APU, shadow will be NULL */ + if (!vmbo->shadow) + continue; + shadow = vmbo->shadow; + /* No need to recover an evicted BO */ if (shadow->tbo.resource->mem_type != TTM_PL_TT || shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||