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 97933CAC5BB for ; Wed, 8 Oct 2025 18:26:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 46B0610E88B; Wed, 8 Oct 2025 18:26:04 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="K0q4KS3u"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id EAC7610E885; Wed, 8 Oct 2025 18:26:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759947963; x=1791483963; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=HWN2FHBB0fMA9Nv35A0seKH5IeDivEvXY+NSyLEWr1g=; b=K0q4KS3uIjvhAQg3ngr0v9H2Nqn2otDZzer+cNsp1nJTiLkUCtiSdZJM oe9M0Q1h5jg+KhGfOpgsWvbj653NUz7mQVQ0iU0cZXEOjWsnDXNHFfEZV kS81hFep5CZoJzCZv7ctSgxQmFUFTKb+LXKzm009u5JsVDDqa9oWL6IrE 2avSQ4N8748+dCSMheHlHVVMS3/gKBFTYmdqAC10N/JJuu6DwbW/9Vu4Y zjUjz/EKOg4l44IytEkEJgs6NvuFb2YoGyVJo0QzOHES8QEGYX4qAW0Xl v0nqys7n0BhVDvCFeVd+wYdumjNm+cLNlf7agjswWxO0sPYzviNyRSqPy Q==; X-CSE-ConnectionGUID: jCTiyWe3QLacTCz5sw5KHw== X-CSE-MsgGUID: VTjGLzjoRVaVUgDY76bwFQ== X-IronPort-AV: E=McAfee;i="6800,10657,11576"; a="62245557" X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="62245557" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Oct 2025 11:26:02 -0700 X-CSE-ConnectionGUID: d2AABAIwQiy7aGJTr81YMg== X-CSE-MsgGUID: w9qNh5owTx+WNaIE3PpKiw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="185799744" Received: from pgcooper-mobl3.ger.corp.intel.com (HELO localhost) ([10.245.244.175]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Oct 2025 11:26:01 -0700 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org Subject: [RFC][PATCH 00/11] drm/i915/prefill: Introduce helpers for prefill latency calculations Date: Wed, 8 Oct 2025 21:25:47 +0300 Message-ID: <20251008182559.20615-1-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.49.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo 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" From: Ville Syrjälä Introduce intel_prefill and various accompanying helpers to do pipe prefill latency related stuff (vblank/guardband length checks, and in the future reduced guardband length). Still a bit rough in plaeces so tossing it out as more of and RFC at this stage. Ville Syrjälä (11): drm/i915: Reject modes with linetime > 64 usec drm/i915/cdclk: Add prefill helpers for CDCLK drm/i915/cdclk: Add intel_cdclk_min_cdclk_for_prefill() drm/i915/dsc: Add prefill helper for DSC drm/i915/scaler: Add scaler prefill helpers drm/i195/wm: Add WM0 prefill helpers drm/i915: Introduce intel_compute_global_watermarks_late() drm/i915/prefill: Introduce intel_prefill.c drm/i915/wm: Use intel_prefill drm/i915/prefill: Print the prefill details drm/i915/prefill: Also print out the worst case estimates drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/display/intel_cdclk.c | 99 +++++++- drivers/gpu/drm/i915/display/intel_cdclk.h | 7 + drivers/gpu/drm/i915/display/intel_display.c | 12 + .../gpu/drm/i915/display/intel_display_core.h | 1 + drivers/gpu/drm/i915/display/intel_prefill.c | 200 +++++++++++++++ drivers/gpu/drm/i915/display/intel_prefill.h | 48 ++++ drivers/gpu/drm/i915/display/intel_vdsc.c | 8 + drivers/gpu/drm/i915/display/intel_vdsc.h | 1 + drivers/gpu/drm/i915/display/intel_wm.c | 10 + drivers/gpu/drm/i915/display/intel_wm.h | 1 + drivers/gpu/drm/i915/display/skl_scaler.c | 204 +++++++++++++++ drivers/gpu/drm/i915/display/skl_scaler.h | 15 ++ drivers/gpu/drm/i915/display/skl_watermark.c | 239 ++++++++++-------- drivers/gpu/drm/i915/display/skl_watermark.h | 3 + drivers/gpu/drm/xe/Makefile | 1 + 16 files changed, 737 insertions(+), 113 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_prefill.c create mode 100644 drivers/gpu/drm/i915/display/intel_prefill.h -- 2.49.1