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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A46EC47247 for ; Thu, 7 May 2020 14:29:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 185DE20870 for ; Thu, 7 May 2020 14:29:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588861752; bh=qQJ8XuGD1yqiYvBBlA+XTk9Ka7sBVbNnfFgy4ubIWrU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=pllnBTMC3ZWZuJraGOMIsooWfKwuyUT6d8G5ULd9F+tvxIOWdJMmmbBB9xJsJUwZC uWbNEDAjXjKOGqahvSOPeZGTkHNGMihGuv+zRrbcNUYWJKN99Fqcs0HX3EkOrzOxoA 0W7RHyzxJQ4vAVUt4zsVgekCIaUp54ieJM7H+ECk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728465AbgEGO3L (ORCPT ); Thu, 7 May 2020 10:29:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:56196 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728385AbgEGO3C (ORCPT ); Thu, 7 May 2020 10:29:02 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6867420936; Thu, 7 May 2020 14:29:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588861742; bh=qQJ8XuGD1yqiYvBBlA+XTk9Ka7sBVbNnfFgy4ubIWrU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mJdrr8Zrai7DJiuWpxowo157HHyG+CGPCf9fhx+IDHebxJ68G0Xzr3mJD3t3Mmh9E 0m+goOARxxZn3AIs1hFSDTipR83bQF22Wg/uOhm1s0XYCLpHsUnRlVQ5YEacn+TJuD 7IvPZSplajp9BuJPHM8oVZPuYyFxdcaM6vy9W3DE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Tiecheng Zhou , Evan Quan , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.4 25/35] drm/amd/powerplay: avoid using pm_en before it is initialized revised Date: Thu, 7 May 2020 10:28:19 -0400 Message-Id: <20200507142830.26239-25-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200507142830.26239-1-sashal@kernel.org> References: <20200507142830.26239-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tiecheng Zhou [ Upstream commit 690ae30be163d5262feae01335b2a6f30569e5aa ] hwmgr->pm_en is initialized at hwmgr_hw_init. during amdgpu_device_init, there is amdgpu_asic_reset that calls to soc15_asic_reset (for V320 usecase, Vega10 asic), in which: 1) soc15_asic_reset_method calls to pp_get_asic_baco_capability (pm_en) 2) soc15_asic_baco_reset calls to pp_set_asic_baco_state (pm_en) pm_en is used in the above two cases while it has not yet been initialized So avoid using pm_en in the above two functions for V320 passthrough. Reviewed-by: Evan Quan Signed-off-by: Tiecheng Zhou Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index d306cc7119976..8bb5fbef7de0f 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -1425,7 +1425,8 @@ static int pp_get_asic_baco_capability(void *handle, bool *cap) if (!hwmgr) return -EINVAL; - if (!hwmgr->pm_en || !hwmgr->hwmgr_func->get_asic_baco_capability) + if (!(hwmgr->not_vf && amdgpu_dpm) || + !hwmgr->hwmgr_func->get_asic_baco_capability) return 0; mutex_lock(&hwmgr->smu_lock); @@ -1459,7 +1460,8 @@ static int pp_set_asic_baco_state(void *handle, int state) if (!hwmgr) return -EINVAL; - if (!hwmgr->pm_en || !hwmgr->hwmgr_func->set_asic_baco_state) + if (!(hwmgr->not_vf && amdgpu_dpm) || + !hwmgr->hwmgr_func->set_asic_baco_state) return 0; mutex_lock(&hwmgr->smu_lock); -- 2.20.1