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 E283FC36002 for ; Mon, 24 Mar 2025 09:28:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9200F10E269; Mon, 24 Mar 2025 09:28:41 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="HQ6er5Av"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id B242210E269 for ; Mon, 24 Mar 2025 09:28:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1742808521; x=1774344521; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=HXaF5oGlSgEhP6RywxWyLAWSMeWAy7zBGA28dyyaaSE=; b=HQ6er5AvZ1XD++EFhZ3KdZENDuwimBhW1XIGi/ULluo8dHOm9AXn0Qnt NE/xeF0Sq5/veuSOmrlSqmJBElIoU5FyE8GTThRJXY0+mF64YnWOW3D5r rWhwa4O9f4rkzOF3PUwhPdcmoKrzk3pHi61d+oGwm8EFx0d+E93Y03nq6 ZZdW8l6wkslWcrCK/pbCJHIEo7eE+S7xbSPT0yC/gz7qq7v6xreU2FMN6 YeKMHzrLBu/SPasJaIwjP75C0w5FIoSeUMPlUNKCixYi8M9agzmA0Wor0 ciaREQfZHCUQrvKh8XdIAPBHuVzJySK5E0NLDHlu55Uo0eXC2Rn8DQ15m A==; X-CSE-ConnectionGUID: p2VyuSt4RL6gJiJLeZjzSQ== X-CSE-MsgGUID: 5MDXT1geSvKKAVTXXKVGGw== X-IronPort-AV: E=McAfee;i="6700,10204,11382"; a="44018829" X-IronPort-AV: E=Sophos;i="6.14,271,1736841600"; d="scan'208";a="44018829" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2025 02:28:41 -0700 X-CSE-ConnectionGUID: Kw/WeuKxRI6CtNsMsCQutw== X-CSE-MsgGUID: Fb6cQUrbRvOefNlP0miqSw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,271,1736841600"; d="scan'208";a="124445141" Received: from kunal-x299-aorus-gaming-3-pro.iind.intel.com ([10.190.239.13]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2025 02:28:39 -0700 From: Jeevan B To: igt-dev@lists.freedesktop.org Cc: kunal1.joshi@intel.com, Jeevan B Subject: [PATCH i-g-t] tests/kms_display_modes: Fit modes within MST bandwidth constraints Date: Mon, 24 Mar 2025 15:14:19 +0530 Message-Id: <20250324094419.1180224-1-jeevan.b@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" Instead of checking only the current modes, find a combination of modes in the MST topology that can be accommodated within the available link bandwidth. Fixes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1542 Signed-off-by: Jeevan B --- tests/kms_display_modes.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tests/kms_display_modes.c b/tests/kms_display_modes.c index 588820170..d1083f470 100644 --- a/tests/kms_display_modes.c +++ b/tests/kms_display_modes.c @@ -49,6 +49,22 @@ typedef struct { int n_pipes; } data_t; +static bool fit_modes_in_bw(data_t *data) +{ + bool found; + int ret; + + ret = igt_display_try_commit_atomic(&data->display, + DRM_MODE_ATOMIC_TEST_ONLY | + DRM_MODE_ATOMIC_ALLOW_MODESET, NULL); + if (ret != 0) { + found = igt_override_all_active_output_modes_to_fit_bw(&data->display); + igt_require_f(found, + "No valid mode combo found for modeset\n"); + } + return true; +} + static bool output_is_dp_mst(data_t *data, igt_output_t *output, int i) { int connector_id; @@ -93,6 +109,8 @@ static void run_extendedmode_basic(data_t *data, mode[0] = igt_output_get_mode(output1); mode[1] = igt_output_get_mode(output2); + igt_assert(fit_modes_in_bw(data)); + pipe_crc[0] = igt_pipe_crc_new(data->drm_fd, pipe1, IGT_PIPE_CRC_SOURCE_AUTO); pipe_crc[1] = igt_pipe_crc_new(data->drm_fd, pipe2, IGT_PIPE_CRC_SOURCE_AUTO); @@ -138,6 +156,7 @@ static void run_extendedmode_basic(data_t *data, igt_fb_set_size(&fb, plane[1], mode[1]->hdisplay, mode[1]->vdisplay); igt_plane_set_size(plane[1], mode[1]->hdisplay, mode[1]->vdisplay); + igt_assert(fit_modes_in_bw(data)); igt_display_commit2(display, COMMIT_ATOMIC); igt_pipe_crc_collect_crc(pipe_crc[0], &crc[0]); @@ -158,6 +177,7 @@ static void run_extendedmode_basic(data_t *data, DRM_PLANE_TYPE_PRIMARY), NULL); igt_plane_set_fb(igt_pipe_get_plane_type(&display->pipes[pipe2], DRM_PLANE_TYPE_PRIMARY), NULL); + igt_assert(fit_modes_in_bw(data)); igt_display_commit2(display, COMMIT_ATOMIC); /*Compare CRC*/ -- 2.25.1