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mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from PH8PR11MB8287.namprd11.prod.outlook.com (2603:10b6:510:1c7::14) by LV3PR11MB8766.namprd11.prod.outlook.com (2603:10b6:408:212::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9228.16; Tue, 21 Oct 2025 20:19:21 +0000 Received: from PH8PR11MB8287.namprd11.prod.outlook.com ([fe80::7e8b:2e5:8ce4:2350]) by PH8PR11MB8287.namprd11.prod.outlook.com ([fe80::7e8b:2e5:8ce4:2350%7]) with mapi id 15.20.9228.015; Tue, 21 Oct 2025 20:19:21 +0000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable In-Reply-To: <907234da-a6a7-42d5-a7b9-bfbc713d4d0c@intel.com> References: <20251015-xe3p_lpd-basic-enabling-v1-0-d2d1e26520aa@intel.com> <20251015-xe3p_lpd-basic-enabling-v1-30-d2d1e26520aa@intel.com> <907234da-a6a7-42d5-a7b9-bfbc713d4d0c@intel.com> Subject: Re: [PATCH 30/32] drm/i915/wm: don't use method1 in Xe3p_LPD onwards From: Gustavo Sousa CC: Ankit Nautiyal , Dnyaneshwar Bhadane , Jouni =?utf-8?q?H=C3=B6gander?= , Juha-pekka Heikkila , Luca Coelho , Lucas De Marchi , Matt Atwood , Matt Roper , "Ravi Kumar Vodapalli" , Vinod Govindapillai To: Shekhar Chauhan , , Date: Tue, 21 Oct 2025 17:19:15 -0300 Message-ID: <176107795541.3231.13088977991389808325@intel.com> User-Agent: alot/0.12.dev22+g972188619 X-ClientProxiedBy: SJ0PR03CA0050.namprd03.prod.outlook.com (2603:10b6:a03:33e::25) To PH8PR11MB8287.namprd11.prod.outlook.com (2603:10b6:510:1c7::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH8PR11MB8287:EE_|LV3PR11MB8766:EE_ X-MS-Office365-Filtering-Correlation-Id: bb680712-6c81-48d9-e9bf-08de10df1e90 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014; 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Seems too vague. Hm... The referred Bspec has the descriptions of each method. -- Gustavo Sousa > >-shekhar > >> calculate the watermark values anymore, so skip it. >> >> Bspec: 68985 >> Signed-off-by: Luca Coelho >> Signed-off-by: Gustavo Sousa >> --- >> drivers/gpu/drm/i915/display/skl_watermark.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/= drm/i915/display/skl_watermark.c >> index 88342d07727f..fba7448c4920 100644 >> --- a/drivers/gpu/drm/i915/display/skl_watermark.c >> +++ b/drivers/gpu/drm/i915/display/skl_watermark.c >> @@ -1809,6 +1809,8 @@ static void skl_compute_plane_wm(const struct inte= l_crtc_state *crtc_state, >> =20 >> if (wp->y_tiled) { >> selected_result =3D max_fixed16(method2, wp->y_tile_mi= nimum); >> + } else if (DISPLAY_VER(display) >=3D 35) { >> + selected_result =3D method2; >> } else { >> if ((wp->cpp * crtc_state->hw.pipe_mode.crtc_htotal / >> wp->dbuf_block_size < 1) && >>