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 709ADC79F85 for ; Fri, 4 Sep 2026 12:32:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1E4C10FA0B; Fri, 4 Sep 2026 12:32:03 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="LfK8XtGD"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id B00D110FA23; Fri, 4 Sep 2026 12:32:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788525123; x=1820061123; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=fpUOqU97uL6RLwkNOCbxmggvz3BJgIW6HYpzgn/9O2g=; b=LfK8XtGDsPFNFuhUsfM6m6iY4/jnYOG8VlsFwOzLsJXBMHT8XYZTEAHm HUwf7rbZu1sgiZTxBGxbXbWoXSlPQ/5z+A6yx6LAdwVvqT4PPQTAQINdZ ibJbbY6zWMnG2uBqn/yoPeK/ho3NtMqJze/pGYyacz7eSguITE3v5SmRf o+xjBBitwdfO9HnXAz4wpVKkQOW5AA6O3QN9eI7nyajPzSJRvA08rQFQD EKXL66RbqT3ItyD2E/0aRaW4LRX3pZX4I04E1Z9NUH4+zkqh1z9kjSuim b6QSTVnkw2Iaxyt4mX8m6undU2bphjP+boo4eYrk/OIuteEYOCB2Huppj g==; X-CSE-ConnectionGUID: kjQaDPDoSJm3tjuG/ZpJgQ== X-CSE-MsgGUID: dvYga+NzR4KygOo7ib51Pw== X-IronPort-AV: E=McAfee;i="6800,10657,11895"; a="92896589" X-IronPort-AV: E=Sophos;i="6.25,262,1779174000"; d="scan'208";a="92896589" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2026 05:32:02 -0700 X-CSE-ConnectionGUID: Orcfheh4T76ZY9J+j/1TSg== X-CSE-MsgGUID: TzF4d4mDTvm25Ey2fFmujg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,262,1779174000"; d="scan'208";a="275311611" Received: from dev-417.igk.intel.com ([10.91.214.181]) by fmviesa005.fm.intel.com with ESMTP; 04 Sep 2026 05:32:01 -0700 From: =?UTF-8?q?Micha=C5=82=20Grzelak?= To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: Jani Nikula , Suraj Kandpal , =?UTF-8?q?Micha=C5=82=20Grzelak?= Subject: [PATCH v12 5/8] drm/i915/buf_trans: add vfunc for VS/PE-O Date: Fri, 4 Sep 2026 14:31:45 +0200 Message-ID: <20260904123148.2165596-6-michal.grzelak@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260904123148.2165596-1-michal.grzelak@intel.com> References: <20260904123148.2165596-1-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: 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" Choosing correct table for Vswing / Pre-emphasis Override is platform specific. It also requires different checks that are already used for choosing predefined tables. Add new get_buf_trans_override() vfunc into intel_encoder returning deparsed table from VBT#57. In next patches, set it inside already present if-ladder from intel_ddi_buf_trans_init() instead of duplicating it. Note that get_buf_trans() cannot be overwritten since there are cases when we need to rollback although VS/PE-O was requested, eg. DP is not connected or feature is not yet implemented for the platform. Assume that vfunc returns NULL on rollback and return predefined tables. Suggested-by: Jani Nikula Signed-off-by: Michał Grzelak Reviewed-by: Suraj Kandpal Acked-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c | 8 ++++++++ drivers/gpu/drm/i915/display/intel_display_types.h | 3 +++ 2 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c index 4cd1e4d76c7af..f31283a0331b7 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c +++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c @@ -1857,5 +1857,13 @@ const struct intel_ddi_buf_trans *intel_ddi_buf_trans_get(struct intel_encoder * const struct intel_crtc_state *crtc_state, int *n_entries) { + if (encoder->get_buf_trans_override) { + const struct intel_ddi_buf_trans *override; + + override = encoder->get_buf_trans_override(encoder, crtc_state, n_entries); + if (override) + return intel_get_buf_trans(override, n_entries); + } + return encoder->get_buf_trans(encoder, crtc_state, n_entries); } diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 5f0fe18c0614e..9016be52c7eac 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -289,6 +289,9 @@ struct intel_encoder { */ enum icl_port_dpll_id (*port_pll_type)(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); + const struct intel_ddi_buf_trans *(*get_buf_trans_override)(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + int *n_entries); const struct intel_ddi_buf_trans *(*get_buf_trans)(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, int *n_entries); -- 2.45.2