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 8E39BC4332F for ; Mon, 10 Oct 2022 00:18:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231594AbiJJAS1 (ORCPT ); Sun, 9 Oct 2022 20:18:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231551AbiJJARs (ORCPT ); Sun, 9 Oct 2022 20:17:48 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB4735E562; Sun, 9 Oct 2022 16:53:07 -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 ams.source.kernel.org (Postfix) with ESMTPS id 69FB4B80DE4; Sun, 9 Oct 2022 23:53:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B999C433C1; Sun, 9 Oct 2022 23:53:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665359585; bh=GE2YQiTOCkVprWu/xnAquC2VU2jYU3qYnrea42lOiBk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=V2CGffiE8bBdtxPzgltaKnYtW0P7VWBu7Zv/yu+w4a4O3nf0DzlKXUmHLfnk7Qcyl EM+4WPaquQZKZ4Hoy/5LOgsGQxyid2AAE88cB0e2PN7oqSH2UsBuuaRweS68FbiN5A tuQnZ9iO/pF54L9wlK9v8iaMHGFj25D/jzZWyRqMRd8oZqFZ1b7yx2bN8xgw3Yf5wQ boJPIl6XKayUzMKbo030ki1IaULZGq7SE+oR0SaLKy89OhAYmLENkZAMCllRVi2AoE UTICglAcu0AVSfF3qqmu+HQLuSatmVttK2mXplzJDwzZsJ3oAf9uhDRtWFECZRp0uj ltwuphZdX76VA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Yifan Zha , =?UTF-8?q?Christian=20K=C3=B6nig?= , Hawking Zhang , Alex Deucher , Sasha Levin , Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, sonny.jiang@amd.com, evan.quan@amd.com, James.Zhu@amd.com, tim.huang@amd.com, Likun.Gao@amd.com, Stanley.Yang@amd.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.19 12/36] drm/admgpu: Skip CG/PG on SOC21 under SRIOV VF Date: Sun, 9 Oct 2022 19:51:58 -0400 Message-Id: <20221009235222.1230786-12-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221009235222.1230786-1-sashal@kernel.org> References: <20221009235222.1230786-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yifan Zha [ Upstream commit 828418259254863e0af5805bd712284e2bd88e3b ] [Why] There is no CG(Clock Gating)/PG(Power Gating) requirement on SRIOV VF. For multi VF, VF should not enable any CG/PG features. For one VF, PF will program CG/PG related registers. [How] Do not set any cg/pg flag bit at early init under sriov. Acked-by: Christian König Signed-off-by: Yifan Zha Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/soc21.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c index 8d5c452a9100..6d3bfb0f0346 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc21.c +++ b/drivers/gpu/drm/amd/amdgpu/soc21.c @@ -551,6 +551,10 @@ static int soc21_common_early_init(void *handle) AMD_PG_SUPPORT_JPEG | AMD_PG_SUPPORT_ATHUB | AMD_PG_SUPPORT_MMHUB; + if (amdgpu_sriov_vf(adev)) { + adev->cg_flags = 0; + adev->pg_flags = 0; + } adev->external_rev_id = adev->rev_id + 0x1; // TODO: need update break; case IP_VERSION(11, 0, 2): -- 2.35.1