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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CFE26CD98F0 for ; Wed, 17 Jun 2026 04:55:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2165510EDE6; Wed, 17 Jun 2026 04:55:58 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="UUUsIvUP"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id B8CE010E916; Wed, 17 Jun 2026 04:55:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1781672157; x=1813208157; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=EQHgE5OFehfVc6fpZyoK0Zt70CyWEFds+8zcLMpa/mY=; b=UUUsIvUPYLt+A3uaXKgxz/4gLMcxV0zUw0tnBJVuEdI0lYHi+rM0MiLl EXwxfc5HnZsc8NCHRuN1iqCeik6mkg0/h3uaipQnCbSqvInPDITavOU5H Q/ygMZ903680RgDfiO4+6/alCas/PGEDbR/OaLyaPn8nhAXDQYjF2qpI+ /j14fQLiYUsySk0SWe2IuXWoiu+hHOaGDVvh6b8snfPNVk6W7PEDMajAE Ob7ABcjkTo066poVTToArcRLUaRTq93wbNXAntZJUzyAsR8xOFdDm8Zeq 6UibuQ3uqHY1hCy4FfHR011Ve7LxnXDz3MCjZ5sJRGh31THmhDX7z37lC A==; X-CSE-ConnectionGUID: wkKhhrzBSYqMfqWjhizbUQ== X-CSE-MsgGUID: TrEwB2B5SyWItjyErgiQJg== X-IronPort-AV: E=McAfee;i="6800,10657,11819"; a="93023809" X-IronPort-AV: E=Sophos;i="6.24,209,1774335600"; d="scan'208";a="93023809" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2026 21:55:57 -0700 X-CSE-ConnectionGUID: y8Y8f412SNy29xXAwv5TDA== X-CSE-MsgGUID: YKwlPhrjShehfxgWDKiufA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,209,1774335600"; d="scan'208";a="249869911" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa004.fm.intel.com with ESMTP; 16 Jun 2026 21:55:54 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org, ankit.k.nautiyal@intel.com, ville.syrjala@linux.intel.com, suraj.kandpal@intel.com Subject: [PATCH RESEND v2] drm/i915/display: Program TRANS_VTOTAL from mode vtotal Date: Wed, 17 Jun 2026 10:15:17 +0530 Message-ID: <20260617044517.844010-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.48.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" There are monitors being sensitive to MSA and end up blanking out when we override Vtotal, DP transcoder uses TRANS_VTOTAL to derive MSA VTotal. Avoid overriding crtc_vtotal to 1 on platform which supports VRR Timing generator and always program VTOTAL from mode timing in transcoder timing paths. --v2: - Remove write to crtc_state->hw.adjusted_mode.crtc_vtotal during intel_vrr_get_config. (Ankit) Bspec: 70001 Cc: Ankit Nautiyal Cc: Ville Syrjälä Cc: Suraj Kandpal Signed-off-by: Mitul Golani Reviewed-by: Suraj Kandpal --- drivers/gpu/drm/i915/display/intel_display.c | 17 ----------------- drivers/gpu/drm/i915/display/intel_vrr.c | 10 ---------- 2 files changed, 27 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index e2e4b00a8fa9..eb54f20b1859 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -2731,15 +2731,6 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_sta HSYNC_START(adjusted_mode->crtc_hsync_start - 1) | HSYNC_END(adjusted_mode->crtc_hsync_end - 1)); - /* - * For platforms that always use VRR Timing Generator, the VTOTAL.Vtotal - * bits are not required. Since the support for these bits is going to - * be deprecated in upcoming platforms, avoid writing these bits for the - * platforms that do not use legacy Timing Generator. - */ - if (intel_vrr_always_use_vrr_tg(display)) - crtc_vtotal = 1; - intel_de_write(display, TRANS_VTOTAL(display, cpu_transcoder), VACTIVE(crtc_vdisplay - 1) | VTOTAL(crtc_vtotal - 1)); @@ -2826,14 +2817,6 @@ static void intel_set_transcoder_timings_lrr(const struct intel_crtc_state *crtc intel_de_write(display, TRANS_VSYNC(display, cpu_transcoder), VSYNC_START(adjusted_mode->crtc_vsync_start - 1) | VSYNC_END(adjusted_mode->crtc_vsync_end - 1)); - /* - * For platforms that always use VRR Timing Generator, the VTOTAL.Vtotal - * bits are not required. Since the support for these bits is going to - * be deprecated in upcoming platforms, avoid writing these bits for the - * platforms that do not use legacy Timing Generator. - */ - if (intel_vrr_always_use_vrr_tg(display)) - crtc_vtotal = 1; /* * The double buffer latch point for TRANS_VTOTAL diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index e03b5daac5be..bd90282b2ad2 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -1097,16 +1097,6 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state) crtc_state->vrr.vmin += intel_vrr_vmin_flipline_offset(display); } - /* - * For platforms that always use VRR Timing Generator, the VTOTAL.Vtotal - * bits are not filled. Since for these platforms TRAN_VMIN is always - * filled with crtc_vtotal, use TRAN_VRR_VMIN to get the vtotal for - * adjusted_mode. - */ - if (intel_vrr_always_use_vrr_tg(display)) - crtc_state->hw.adjusted_mode.crtc_vtotal = - intel_vrr_vmin_vtotal(crtc_state); - if (HAS_AS_SDP(display)) { trans_vrr_vsync = intel_de_read(display, -- 2.48.1