From patchwork Wed Mar 22 10:22:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Hogander, Jouni" X-Patchwork-Id: 13183827 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 D0739C6FD1F for ; Wed, 22 Mar 2023 10:22:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 38E3310E8F1; Wed, 22 Mar 2023 10:22:39 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 548FC10E8EF for ; Wed, 22 Mar 2023 10:22:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679480556; x=1711016556; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OpIohCV9mSvEJbVx+JWExw1ShEEITey9w9M4p7itJnY=; b=jPkUxaP2WzecAH8HK/RGNE9tSZWk2lP0AGvWc+3M/nQyVtM7MUiI4paR 4r1siY09KaKLFklT+7vtKdv5CWykmAbCsZYMl453YEym700azilFxxGfe Uwfl0VCL+YCBGIHzKu/DODS5JAtYDIdkcbGSNhCyuAyoNg4dbhOZK5+nL In4edA8eTFj2MLeonpSi6W1cLIUKq+zWw2ulqJ0ZqnMpiJo6cyBkkhqEq U5VRjVuzhrpZqITZ99h0ns9fw4J1wjLkvi/aoPDsx2T1l2GXPFgrxnC0M F25bXnnxQqlrMHYY2yHQIk98XZqbEevKZhhYvLiYtZrKmWIJYeVxSvdCf A==; X-IronPort-AV: E=McAfee;i="6600,9927,10656"; a="340714799" X-IronPort-AV: E=Sophos;i="5.98,281,1673942400"; d="scan'208";a="340714799" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2023 03:22:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10656"; a="1011309829" X-IronPort-AV: E=Sophos;i="5.98,281,1673942400"; d="scan'208";a="1011309829" Received: from swcompto-mobl1.amr.corp.intel.com (HELO jhogande-mobl1.ger.corp.intel.com) ([10.252.63.36]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2023 03:22:34 -0700 From: =?utf-8?q?Jouni_H=C3=B6gander?= To: intel-gfx@lists.freedesktop.org Date: Wed, 22 Mar 2023 12:22:03 +0200 Message-Id: <20230322102204.116056-5-jouni.hogander@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230322102204.116056-1-jouni.hogander@intel.com> References: <20230322102204.116056-1-jouni.hogander@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH v4 4/5] drm/i915/psr: Check that vblank is long enough for psr2 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" Ensure vblank >= psr2 vblank where Psr2 vblank = PSR2_CTL Block Count Number maximum line count. Bspec: 71580, 49274 v2: Use calculated block count number maximum line count Signed-off-by: Jouni Högander --- drivers/gpu/drm/i915/display/intel_psr.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 4b7c946a9a25..b53c71c06105 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -968,6 +968,15 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, return false; } + /* Vblank >= PSR2_CTL Block Count Number maximum line count */ + if (crtc_state->hw.adjusted_mode.crtc_vblank_end - + crtc_state->hw.adjusted_mode.crtc_vblank_start < + psr2_block_count_lines(intel_dp)) { + drm_dbg_kms(&dev_priv->drm, + "PSR2 not enabled, too short vblank time\n"); + return false; + } + if (HAS_PSR2_SEL_FETCH(dev_priv)) { if (!intel_psr2_sel_fetch_config_valid(intel_dp, crtc_state) && !HAS_PSR_HW_TRACKING(dev_priv)) {