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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 DM4PR11MB5341.namprd11.prod.outlook.com (2603:10b6:5:390::22) by MN2PR11MB4599.namprd11.prod.outlook.com (2603:10b6:208:26d::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8632.22; Wed, 9 Apr 2025 08:01:00 +0000 Received: from DM4PR11MB5341.namprd11.prod.outlook.com ([fe80::397:7566:d626:e839]) by DM4PR11MB5341.namprd11.prod.outlook.com ([fe80::397:7566:d626:e839%5]) with mapi id 15.20.8632.017; Wed, 9 Apr 2025 08:01:00 +0000 Message-ID: <08dfcf42-b58a-48b1-a602-de2a6f783d18@intel.com> Date: Wed, 9 Apr 2025 13:30:55 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] drm/i915/vrr: Stop writing VRR_CTL_IGN_MAX_SHIFT for MTL onwards To: =?UTF-8?Q?Jouni_H=C3=B6gander?= , , References: <20250409054909.968531-1-jouni.hogander@intel.com> Content-Language: en-US From: "Nautiyal, Ankit K" In-Reply-To: <20250409054909.968531-1-jouni.hogander@intel.com> Content-Type: text/plain; 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On LunarLake and onwards Bit 30 is "Mask Block PkgC" instead. Stop > writing the bit for MeteorLake and onwards > > v2: "Ignore Max Shift" bit doesn't exist on MeteorLake either > > Bspec: 68925 Perhaps you can add 50508 or 71956 for MTL. Reviewed-by: Ankit Nautiyal > Signed-off-by: Jouni Högander > --- > drivers/gpu/drm/i915/display/intel_vrr.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c > index 633a66f6b73b..c6565baf815a 100644 > --- a/drivers/gpu/drm/i915/display/intel_vrr.c > +++ b/drivers/gpu/drm/i915/display/intel_vrr.c > @@ -444,7 +444,10 @@ static u32 trans_vrr_ctl(const struct intel_crtc_state *crtc_state) > { > struct intel_display *display = to_intel_display(crtc_state); > > - if (DISPLAY_VER(display) >= 13) > + if (DISPLAY_VER(display) >= 14) > + return VRR_CTL_FLIP_LINE_EN | > + XELPD_VRR_CTL_VRR_GUARDBAND(crtc_state->vrr.guardband); > + else if (DISPLAY_VER(display) >= 13) > return VRR_CTL_IGN_MAX_SHIFT | VRR_CTL_FLIP_LINE_EN | > XELPD_VRR_CTL_VRR_GUARDBAND(crtc_state->vrr.guardband); > else