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 CFB44CD3436 for ; Thu, 7 May 2026 01:29:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 85D9A10E231; Thu, 7 May 2026 01:29:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="nO4a26e/"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 497C510E231 for ; Thu, 7 May 2026 01:28:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1778117314; x=1809653314; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=UCVP98ZezSo5tuglBai9FWII9P+9GoShnOlzqNUGQlA=; b=nO4a26e/9nerrbQOR09/tYqPLXhfkbB6BVB6tb3Gd+KRoOw3zWb8Z+iK xeluzdgYM5hkjXYR1IdY2pLu4c5vYc+HxuZENHMb7/k0jV7mIzo4NwoBZ vxGiKe6RUVSAganQpsmbDUJ1QHlWcBmPTsj09dqlORBsuQTF0hHSM77SR 1HpoZYbllSZVbjYOmIKjv29van9WPSficj04QgOUsw68E5MaWDdi/U8UF bctwzN70nV8qRH7RBDqTJR2AFV7MOTYQFgBRzH3V6ih7/BMS0zVxdEWff Qb14L6HdinJ/SLTFPAQ8BLD5Zj2IQf5kA1IglVIhpbO3HrB1aO2FkVQA8 Q==; X-CSE-ConnectionGUID: OcmFZC9NQAmiea7O+4ErmA== X-CSE-MsgGUID: p1v/KC12RbSg+vZo9aZ9PQ== X-IronPort-AV: E=McAfee;i="6800,10657,11778"; a="96490334" X-IronPort-AV: E=Sophos;i="6.23,220,1770624000"; d="scan'208";a="96490334" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2026 18:28:34 -0700 X-CSE-ConnectionGUID: e8aLGQClTXuOfzFrv1nm6w== X-CSE-MsgGUID: rkfsYUQYSF2t7NVIfMiOTg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,220,1770624000"; d="scan'208";a="238115856" Received: from dev-417.igk.intel.com ([10.91.214.181]) by fmviesa004.fm.intel.com with ESMTP; 06 May 2026 18:28:33 -0700 From: =?UTF-8?q?Micha=C5=82=20Grzelak?= To: igt-dev@lists.freedesktop.org Cc: jani.nikula@intel.com, suraj.kandpal@intel.com, =?UTF-8?q?Micha=C5=82=20Grzelak?= Subject: [PATCH i-g-t v1 5/7] tools/vbt_decode: parse & dump VS/PE-O tables for LT Date: Thu, 7 May 2026 03:28:19 +0200 Message-ID: <20260507012821.527453-6-michal.grzelak@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260507012821.527453-1-michal.grzelak@intel.com> References: <20260507012821.527453-1-michal.grzelak@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 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" Dump VBT #57 tables for LT. Add a table of strings to store each table purpose. Show the affected modes on dumping. Signed-off-by: Michał Grzelak --- tools/intel_vbt_decode.c | 44 ++++++++++++++++++++++++++++++++-------- 1 file changed, 36 insertions(+), 8 deletions(-) diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c index f7ba4bc3d5..6e5fd73473 100644 --- a/tools/intel_vbt_decode.c +++ b/tools/intel_vbt_decode.c @@ -3469,27 +3469,55 @@ static const char * const vspeo_levels[16] = { "N/A ", }; -static void dump_vswing_preemphasis(struct context *context, - const struct bdb_block *block) +static const char * const vspeo_lt_tables[6] = { + "UNUSED", + "UNUSED", + "UNUSED", + "UNUSED", + "DP 1.4", + "DP 2.1", +}; + +static void dump_vspeo_lt(const struct bdb_vswing_preemph *vspeo) { - const struct bdb_vswing_preemph *vspeo = block_data(block); + const unsigned int *tables = vspeo->tables; + const unsigned int *vals; + int num_rows = 16; + size_t offset = 0; printf("\tNumber of vswing tables: %d\n", vspeo->num_tables); printf("\tNumber of columns: %d\n", vspeo->num_columns); + printf("\tNumber of rows: %d\n", num-rows); + printf("\tPhy type: LT\n"); for (int idx = 0; idx < vspeo->num_tables; idx++) { - printf("\tVswing Table #%d:\n", idx+1); + printf("\tVswing Table #%d (%s):\n", idx+1, vspeo_lt_tables[idx]); + for (int row = 0; row < num_rows; row++) { + vals = &tables[offset]; - for (int row = 0; row < 10; row++) { printf("\t\t%s: ", vspeo_levels[row]); + printf("main-cursor: 0x%08x, ", vals[0]); + printf("pre-cursor: 0x%08x, ", vals[1]); + printf("post-cursor: 0x%08x\n", vals[2]); - for (int col = 0; col < vspeo->num_columns; col++) - printf(" 0x%08x", vspeo->tables[idx * 10 * vspeo->num_columns + row * col]); - printf("\n"); + offset += vspeo->num_columns; } } } +static void dump_vswing_preemphasis(struct context *context, + const struct bdb_block *block) +{ + const struct bdb_vswing_preemph *vspeo = block_data(block); + const char *sgt = (char *) context->vbt->signature; + + if (strstr(sgt, "NOVALAKE")) { + dump_vspeo_lt(vspeo); + } else { + printf("platform not supported\n"); + } +} + static void dump_generic_dtd_entry(const struct generic_dtd_entry *dtd, const char *prefix) { -- 2.45.2