From patchwork Fri Mar 8 11:00:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Hogander, Jouni" X-Patchwork-Id: 13586670 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 3DDC8C54E4A for ; Fri, 8 Mar 2024 11:01:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8981D113854; Fri, 8 Mar 2024 11:01:07 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="LIX8DAxc"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id D99F3113854 for ; Fri, 8 Mar 2024 11:01:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709895667; x=1741431667; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=m8rqJqcwwF1kxs05z27VrKBvdckegy0074bmhC0GxoA=; b=LIX8DAxcmpKss/PTd71UqE0UIbIZZ2RPYgBesl0R0SYN8DaTPAj6Bzma P5UGvNZM31VsBUZwRYNhIzG95Rl05VXqFakPpC1B5khI9c/dyjwkJSYxR fDY32Ftrm/Pq2G3QON6qP7R8ij8IfScosDrrEO07vn9Au6LjmCypeuVDv 4i3ULpts6roVmJ26LCFcrXrkI45rsN4T2xhwTo5RYusSJqJnOMpCH3Bd2 BX3E22xDNCsfYnjGFSW6Ls7+DKy6jH74h0f2q7WClGX8Rv8doOVtO/p7A rOLkHqU+6W28+00hnJ3C3TIeZHqAH7p8m9Th4JufuvKRxS/gKhywTReJa g==; X-IronPort-AV: E=McAfee;i="6600,9927,11006"; a="4480330" X-IronPort-AV: E=Sophos;i="6.07,109,1708416000"; d="scan'208";a="4480330" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Mar 2024 03:01:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,109,1708416000"; d="scan'208";a="15130082" Received: from mkupniew-mobl.ger.corp.intel.com (HELO jhogande-mobl1.intel.com) ([10.251.208.210]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Mar 2024 03:01:05 -0800 From: =?utf-8?q?Jouni_H=C3=B6gander?= To: intel-gfx@lists.freedesktop.org Cc: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , Jani Nikula , =?utf-8?q?Jouni_H=C3=B6gander?= Subject: [PATCH v5 4/5] drm/i915/psr: Add IO buffer wake times for LunarLake and beyond Date: Fri, 8 Mar 2024 13:00:38 +0200 Message-Id: <20240308110039.3900838-5-jouni.hogander@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240308110039.3900838-1-jouni.hogander@intel.com> References: <20240308110039.3900838-1-jouni.hogander@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" IO buffer wake time used for IO wake calculation is dependent on port clock on LunarLake and beyond. Take this into account in get_io_buffer_wake_time. Bspec: 65450 v2: add own io_wake_time helper for LunarLake Signed-off-by: Jouni Högander --- drivers/gpu/drm/i915/display/intel_psr.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 747761efa4be..e3daaf05d640 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1165,11 +1165,23 @@ static int tgl_io_buffer_wake_time(void) return 10; } +static int lnl_io_buffer_wake_time(int port_clock) +{ + if (port_clock > 270000) + return 10; + else if (port_clock > 162000) + return 11; + else + return 15; +} + static int io_buffer_wake_time(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); - if (DISPLAY_VER(i915) >= 12) + if (DISPLAY_VER(i915) >= 20) + return lnl_io_buffer_wake_time(crtc_state->port_clock); + else if (DISPLAY_VER(i915) >= 12) return tgl_io_buffer_wake_time(); else return skl_io_buffer_wake_time();