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 5D92EC43458 for ; Thu, 2 Jul 2026 18:29:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 10C6D10F56C; Thu, 2 Jul 2026 18:29:57 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="GyLzdkV7"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 76BBF10F55E for ; Thu, 2 Jul 2026 18:26:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783016805; x=1814552805; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wE06f5gI7ZzTZ7NtSzX0yfvEvxs7tWLj2IFKw29s24I=; b=GyLzdkV7zv6txtPTp8yE+qr5ftRWEI3EZh9iAufjvTw1a8KNPFnM8Jgv 3PS86jgkhg0rNArLSWHmbc+4FDptmr6zF2ZG+6z8G4vnNg8CI+YjGot5j LNaNSH9u55iCnmd/CyflbnmI8iPfdPFDT2u2WORFJMyqFdgVVkPhFG4r1 ACs0/RXUob8qqprwtw36IE2M2blHMJsCU2f9NmJAk7kXN+usKnv7t1GWc DlaQB2mfpFQ0EqzAG+gAhAwshNKjH84/s+qaeGUbOSOdhmMVOsXQ0UB/O Tsi1g8n9S+luWz1LVdlgna7gIQqJJesxUbs+zobPaFlu7zE/FdRg+uD4T g==; X-CSE-ConnectionGUID: VLXUBnyDRNyImRjbI4pAcw== X-CSE-MsgGUID: rLvHvHT2SyKUx1fzI5iJuA== X-IronPort-AV: E=McAfee;i="6800,10657,11835"; a="95154705" X-IronPort-AV: E=Sophos;i="6.25,144,1779174000"; d="scan'208";a="95154705" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2026 11:26:45 -0700 X-CSE-ConnectionGUID: wWI17kMjSF6BkMojh2dsog== X-CSE-MsgGUID: bk2an4e0TaqGsoroR4hDkw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,144,1779174000"; d="scan'208";a="253577110" Received: from dev-417.igk.intel.com ([10.91.214.181]) by orviesa009.jf.intel.com with ESMTP; 02 Jul 2026 11:26:44 -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 v5 5/7] tools/vbt_decode: parse & dump VS/PE-O tables for Snps Date: Thu, 2 Jul 2026 20:26:17 +0200 Message-ID: <20260702182619.3973788-6-michal.grzelak@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260702182619.3973788-1-michal.grzelak@intel.com> References: <20260702182619.3973788-1-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 Snps. Add a table of strings to store each table purpose. Show the affected modes on dumping. v2->v3 - use Cx0 for Snps v1->v2 - check platform basing on devid not VBT signature (Jani) Signed-off-by: Michał Grzelak --- tools/intel_vbt_decode.c | 42 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c index 2f3f720573..8d54b113ad 100644 --- a/tools/intel_vbt_decode.c +++ b/tools/intel_vbt_decode.c @@ -3474,6 +3474,15 @@ static const char * const vspeo_lt_tables[6] = { "DP 2.1", }; +static const char * const vspeo_cx0_tables[6] = { + "C10: DP 1.4 RBR/HBR; C20: UNUSED", + "C10: DP 1.4 HBR2/HBR3; C20: UNUSED", + "C10: eDP non-HBR3; C20: UNUSED", + "C10: eDP HBR3; C20: UNUSED", + "C10: UNUSED; C20: DP 1.4", + "C10: UNUSED; C20: DP 2.X", +}; + static void dump_lt_vspeo(const struct bdb_vswing_preemph *vspeo, int num_rows) { @@ -3503,6 +3512,34 @@ static void dump_lt_vspeo(const struct bdb_vswing_preemph *vspeo, } } +static void dump_cx0_vspeo(const struct bdb_vswing_preemph *vspeo, + int num_rows) +{ + const unsigned int *tables = vspeo->tables; + 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: Cx0\n"); + for (int idx = 0; idx < vspeo->num_tables; idx++) { + printf("\tVswing Table #%d (%s):\n", idx+1, vspeo_cx0_tables[idx]); + for (int row = 0; row < num_rows; row++) { + int vswing = tables[offset]; + int pre_cursor = tables[offset + 1]; + int post_cursor = tables[offset + 2]; + + printf("\t\tPreset #%02d: ", row+1); + printf("vswing: 0x%08x, ", vswing); + printf("pre-cursor: 0x%08x, ", pre_cursor); + printf("post-cursor: 0x%08x\n", post_cursor); + + offset += vspeo->num_columns; + } + } +} + static int vswing_preemph_num_rows(int devid) { @@ -3525,6 +3562,11 @@ static void dump_vswing_preemphasis(struct context *context, if (IS_NOVALAKE_P(devid) || IS_NOVALAKE_S(devid)) { dump_lt_vspeo(vspeo, num_rows); + } else if (IS_PANTHERLAKE(devid) || + IS_BATTLEMAGE(devid) || + IS_LUNARLAKE(devid) || + IS_METEORLAKE(devid)) { + dump_cx0_vspeo(vspeo, num_rows); } else { printf("Warning: deparsing VS/PE-O from devid %x not supported\n", devid); } -- 2.45.2