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 87BE8C44500 for ; Thu, 2 Jul 2026 18:58:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2EFE710F59A; Thu, 2 Jul 2026 18:58:58 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="jZsx5p6b"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9357F10F597; Thu, 2 Jul 2026 18:58:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783018737; x=1814554737; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qAuMFXX0yvWL32IHtxCqb8WmHFKzhusjciNQIwG71sA=; b=jZsx5p6bQpfnocbCPFhg7S9YwNEyAGIgm7w0FZqbo0+fvEFt9Z11j7Ky g8LoKtzjJvUtI1vT1tdR4u3SXbf//T8/wlwakcfPymyD0L5FVGwLo/ANP Lr5UOJ8zI5I/sfArvn0k4jXVo7CmuYSjSmdbD5Fy/spkPkbXMAMXU3pkI zStiwjaHujWm2dPfI8rGrSFYu1fRM8fQP7Ggkk5XXSQrdFXg26vMEglJ4 0rOA4NfiBdbak5Kca/2QlcO0hyDKno6lyz1kyFfktdhAphA7QFVGCPt0a WFTbpFru26gPmqJRdnL23jG6MhoBz+Wq/s+iV017IJrGh6EFBLugXjejE w==; X-CSE-ConnectionGUID: egz4+lMMS3mRrz9eGVYcTg== X-CSE-MsgGUID: /wqPYiPORp+lwu53VRHsCg== X-IronPort-AV: E=McAfee;i="6800,10657,11835"; a="71300038" X-IronPort-AV: E=Sophos;i="6.25,144,1779174000"; d="scan'208";a="71300038" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2026 11:58:57 -0700 X-CSE-ConnectionGUID: 3IXFT0j1Re+SnikM3dkcLw== X-CSE-MsgGUID: Gfbk9YOsRS2sozhdK9w3MA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,144,1779174000"; d="scan'208";a="251862167" Received: from dev-417.igk.intel.com ([10.91.214.181]) by orviesa010.jf.intel.com with ESMTP; 02 Jul 2026 11:58:55 -0700 From: =?UTF-8?q?Micha=C5=82=20Grzelak?= To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: Jani Nikula , Suraj Kandpal , =?UTF-8?q?Micha=C5=82=20Grzelak?= Subject: [PATCH v10 5/8] drm/i915/buf_trans: add vfunc for VS/PE-O Date: Thu, 2 Jul 2026 20:58:36 +0200 Message-ID: <20260702185839.4042397-6-michal.grzelak@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260702185839.4042397-1-michal.grzelak@intel.com> References: <20260702185839.4042397-1-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-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" 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 --- 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 4cd1e4d76c7a..f31283a0331b 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 c048da7d6fea..881226a1eda3 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