From nobody Fri Oct 17 10:31:38 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 E155DC4332F for ; Wed, 19 Oct 2022 13:08:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232895AbiJSNIO (ORCPT ); Wed, 19 Oct 2022 09:08:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231430AbiJSNH4 (ORCPT ); Wed, 19 Oct 2022 09:07:56 -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 B263E1FCF9; Wed, 19 Oct 2022 05:52:50 -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 207D2B822E6; Wed, 19 Oct 2022 08:47:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7BB58C433B5; Wed, 19 Oct 2022 08:46:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666169218; bh=1w++Q8iRRmqW0MQniOVcUitS0gFwZ1zF0XoxIC59Ds8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=I7YSyptQLZu8VBse4TfQ85GTpSatms6480pcS10LRerVRDotvbht4OFydOLgz8+i1 9KInWMj4GJuaRf8dKcw8CanFBkbyZMxGNR9JWGSz2FFnV+Ueh5Pmc+6tSBLeLj2dnD Ef6N8wcGFmMCPpu3hfGLUQlrgBWuRRmSOMtzZzUw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Daniel Wheeler , Charlene Liu , Mario Limonciello , Qingqing Zhuo , Nicholas Kazlauskas , Alex Deucher Subject: [PATCH 6.0 191/862] drm/amd/display: Update PMFW z-state interface for DCN314 Date: Wed, 19 Oct 2022 10:24:38 +0200 Message-Id: <20221019083258.417875595@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Nicholas Kazlauskas commit 4f5bdde386d3b8e9317df5562950e1b4fa177599 upstream. [Why] Request from PMFW to change the messaging format to specify whether we support z-state via individual bits. [How] Update the args we pass in the support message. Fixes: d5c6909e7460 ("drm/amd/display: Add DCN314 clock manager") Tested-by: Daniel Wheeler Reviewed-by: Charlene Liu Reviewed-by: Mario Limonciello Acked-by: Qingqing Zhuo Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org # 6.0 Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c | 11 +++-----= --- drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 3 ++- 2 files changed, 5 insertions(+), 9 deletions(-) --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_smu.c @@ -339,29 +339,24 @@ void dcn314_smu_set_zstate_support(struc if (!clk_mgr->smu_present) return; =20 - if (!clk_mgr->base.ctx->dc->debug.enable_z9_disable_interface && - (support =3D=3D DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY)) - support =3D DCN_ZSTATE_SUPPORT_DISALLOW; - - // Arg[15:0] =3D 8/9/0 for Z8/Z9/disallow -> existing bits // Arg[16] =3D Disallow Z9 -> new bit switch (support) { =20 case DCN_ZSTATE_SUPPORT_ALLOW: msg_id =3D VBIOSSMC_MSG_AllowZstatesEntry; - param =3D 9; + param =3D (1 << 10) | (1 << 9) | (1 << 8); break; =20 case DCN_ZSTATE_SUPPORT_DISALLOW: msg_id =3D VBIOSSMC_MSG_AllowZstatesEntry; - param =3D 8; + param =3D 0; break; =20 =20 case DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY: msg_id =3D VBIOSSMC_MSG_AllowZstatesEntry; - param =3D 0x00010008; + param =3D (1 << 10); break; =20 default: //DCN_ZSTATE_SUPPORT_UNKNOWN --- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c @@ -881,7 +881,8 @@ static const struct dc_plane_cap plane_c }; =20 static const struct dc_debug_options debug_defaults_drv =3D { - .disable_z10 =3D true, /*hw not support it*/ + .disable_z10 =3D false, + .enable_z9_disable_interface =3D true, .disable_dmcu =3D true, .force_abm_enable =3D false, .timing_trace =3D false,