From nobody Tue Dec 16 09:04:54 2025 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 4CA58C04FE1 for ; Tue, 15 Aug 2023 07:12:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235230AbjHOHGs (ORCPT ); Tue, 15 Aug 2023 03:06:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235285AbjHOHGW (ORCPT ); Tue, 15 Aug 2023 03:06:22 -0400 Received: from smtpbgbr2.qq.com (smtpbgbr2.qq.com [54.207.22.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E526E10F9 for ; Tue, 15 Aug 2023 00:05:39 -0700 (PDT) X-QQ-mid: bizesmtp62t1692083088t8k0r85y Received: from localhost.localdomain ( [113.57.152.160]) by bizesmtp.qq.com (ESMTP) with id ; Tue, 15 Aug 2023 15:04:46 +0800 (CST) X-QQ-SSF: 01400000000000G0Z000000A0000000 X-QQ-FEAT: wIl24N/TCD4/tPhPuj+YKhYjoZITwiM2MkS4tlY/grP96nhSNsgYzgnJPQh4K zjUwfzcHAo5Q/o5sPzPtgPPU546CRj25sXogatgG/JC68+K8mQR0I0H2hPCGUrXfVh5Lw3H QoNifDZMv8P4BX5EpWh/cFAZzDTt75vXgWpgRC0+YKzxgz5Cle8duNf5lRbPFrFywU5FsSt +GFtb6FPEL0fs9kgfk2iF/1HuMERaeEF6rd6BhYTqxztII9ZnGySHM7XevWm8zWwkKPhxuT bUZ8V8TjAB8P6BdbR0TpwkfBlBx7c+zSfMrArv8ytoFA0uo0Vmf7Ww6A14QC2d+U1YPnRLF 3uBr6DBN/Rj/vT1XnWI03L8qEbK+VyfR5QsD3+ERKJMuVoL7eZm2M8M3ajpxBFeDyeN7qPb X-QQ-GoodBg: 1 X-BIZMAIL-ID: 4099447814679117161 From: hongao To: alexander.deucher@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, lijo.lazar@amd.com, mario.limonciello@amd.com Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, hongao Subject: [PATCH] drm/amdgpu/gmc6: fix in case the PCI BAR is larger than the actual amount of vram Date: Tue, 15 Aug 2023 14:54:45 +0800 Message-Id: <20230815065445.25576-1-hongao@uniontech.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:uniontech.com:qybglogicsvrgz:qybglogicsvrgz7a-1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" [why] limit visible_vram_size to real_vram_size in case the PCI BAR is larger than the actual amount of vram. Signed-off-by: hongao --- drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/am= dgpu/gmc_v6_0.c index b7dad4e67813..c0de7496bfd1 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -320,6 +320,8 @@ static int gmc_v6_0_mc_init(struct amdgpu_device *adev) adev->gmc.aper_base =3D pci_resource_start(adev->pdev, 0); adev->gmc.aper_size =3D pci_resource_len(adev->pdev, 0); adev->gmc.visible_vram_size =3D adev->gmc.aper_size; + if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size) + adev->gmc.visible_vram_size =3D adev->gmc.real_vram_size; =20 /* set the gart size */ if (amdgpu_gart_size =3D=3D -1) { --=20 2.20.1