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 06F5DE7314E for ; Mon, 2 Feb 2026 10:53:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C0D6510E44A; Mon, 2 Feb 2026 10:53:44 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="g/SEokI0"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 12AAA10E459; Mon, 2 Feb 2026 10:53:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770029623; x=1801565623; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=WuMtUTAJJRh06BZUXwxkYcG3bsX5kVhpudtMh/k9KCw=; b=g/SEokI0ImsqIekncvyoemPVbz6/MwLBZ+qZmqxVqL52szUXfBWnKTwj fAdqVNIQRuTyLs2bwUJm0Cni1b41TK8GocxBsFzE6ZeWXLtRxFrMEt0Eo sG2kwhefo7Fr/pge5dRkwkSt6Lz4st6YPNSsHn9e9sRj5Gx+l07SRvj44 86C9DyZXsm4433BP9lyuReMXlzl49E4mvR8AujbT+YQE1OW7PcQLw7s4F +ql0faGlyyfrjI/McEwgmk+HN4vY6y64rqB5QvIX4UXXeu9kcBK/zWz37 96oZqC2mrxdcr2ZhJz6FwxzQv791nCm2jLeNp+yCrhNtqwthRcOErzaQ2 A==; X-CSE-ConnectionGUID: FKDXuEFdTTakZP7XElfV0Q== X-CSE-MsgGUID: nHZrTvhrT9+5y8LWOk2aGQ== X-IronPort-AV: E=McAfee;i="6800,10657,11689"; a="70385058" X-IronPort-AV: E=Sophos;i="6.21,268,1763452800"; d="scan'208";a="70385058" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2026 02:53:43 -0800 X-CSE-ConnectionGUID: jm96ReXoRmaDD2dkt0TVfA== X-CSE-MsgGUID: k3mdZQxVQEmD3AgcL6AGyA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,268,1763452800"; d="scan'208";a="232419880" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2026 02:53:41 -0800 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: jani.nikula@linux.intel.com, imre.deak@intel.com, Ankit Nautiyal Subject: [PATCH 15/17] drm/i915/dp: Add helpers for joiner candidate loops Date: Mon, 2 Feb 2026 16:07:29 +0530 Message-ID: <20260202103731.357416-16-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260202103731.357416-1-ankit.k.nautiyal@intel.com> References: <20260202103731.357416-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 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" Introduce for_each_joiner_candidate(), intel_dp_joiner_candidate_valid() and intel_dp_joiner_candidate_valid() to remove duplicated joiner enumeration and validity checks across DP SST and MST paths. Suggested-by: Imre Deak Signed-off-by: Ankit Nautiyal Reviewed-by: Imre Deak --- drivers/gpu/drm/i915/display/intel_dp.c | 44 ++++++++++----------- drivers/gpu/drm/i915/display/intel_dp.h | 7 ++++ drivers/gpu/drm/i915/display/intel_dp_mst.c | 25 +----------- 3 files changed, 29 insertions(+), 47 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 6329004f56bc..a44db730e45e 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1492,19 +1492,9 @@ intel_dp_mode_valid(struct drm_connector *_connector, * over candidate pipe counts and evaluate each combination. */ status = MODE_CLOCK_HIGH; - for (num_joined_pipes = 1; num_joined_pipes <= I915_MAX_PIPES; num_joined_pipes++) { + for_each_joiner_candidate(connector, mode, num_joined_pipes) { int dsc_slice_count = 0; - if (connector->force_joined_pipes && - num_joined_pipes != connector->force_joined_pipes) - continue; - - if (!intel_dp_can_join(display, num_joined_pipes)) - continue; - - if (mode->hdisplay > num_joined_pipes * intel_dp_max_hdisplay_per_pipe(display)) - continue; - status = intel_pfit_mode_valid(display, mode, output_format, num_joined_pipes); if (status != MODE_OK) continue; @@ -2888,7 +2878,6 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, struct drm_connector_state *conn_state, bool respect_downstream_limits) { - struct intel_display *display = to_intel_display(encoder); struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct intel_connector *connector = to_intel_connector(conn_state->connector); @@ -2902,18 +2891,7 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, !intel_dp_supports_fec(intel_dp, connector, crtc_state)) return -EINVAL; - for (num_joined_pipes = 1; num_joined_pipes <= I915_MAX_PIPES; num_joined_pipes++) { - if (connector->force_joined_pipes && - num_joined_pipes != connector->force_joined_pipes) - continue; - - if (!intel_dp_can_join(display, num_joined_pipes)) - continue; - - if (adjusted_mode->hdisplay > - num_joined_pipes * intel_dp_max_hdisplay_per_pipe(display)) - continue; - + for_each_joiner_candidate(connector, adjusted_mode, num_joined_pipes) { /* * NOTE: * The crtc_state->joiner_pipes should have been set at the end @@ -7223,3 +7201,21 @@ int intel_dp_sdp_min_guardband(const struct intel_crtc_state *crtc_state, return sdp_guardband; } + +bool intel_dp_joiner_candidate_valid(struct intel_connector *connector, + int hdisplay, + int num_joined_pipes) +{ + struct intel_display *display = to_intel_display(connector); + + if (!intel_dp_can_join(display, num_joined_pipes)) + return false; + + if (hdisplay > num_joined_pipes * intel_dp_max_hdisplay_per_pipe(display)) + return false; + + if (connector->force_joined_pipes && connector->force_joined_pipes != num_joined_pipes) + return false; + + return true; +} diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 95a38763a367..ff527b351de0 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -229,5 +229,12 @@ bool intel_dp_dotclk_valid(struct intel_display *display, int htotal, int dsc_slice_count, int num_joined_pipes); +bool intel_dp_joiner_candidate_valid(struct intel_connector *connector, + int hdisplay, + int num_joined_pipes); + +#define for_each_joiner_candidate(__connector, __mode, __num_joined_pipes) \ + for ((__num_joined_pipes) = 1; (__num_joined_pipes) <= (I915_MAX_PIPES); (__num_joined_pipes)++) \ + for_each_if(intel_dp_joiner_candidate_valid(__connector, (__mode)->hdisplay, __num_joined_pipes)) #endif /* __INTEL_DP_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 8bd3128add0e..29713075e413 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -720,18 +720,7 @@ static int mst_stream_compute_config(struct intel_encoder *encoder, pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; pipe_config->has_pch_encoder = false; - for (num_joined_pipes = 1; num_joined_pipes <= I915_MAX_PIPES; num_joined_pipes++) { - if (connector->force_joined_pipes && - num_joined_pipes != connector->force_joined_pipes) - continue; - - if (!intel_dp_can_join(display, num_joined_pipes)) - continue; - - if (adjusted_mode->hdisplay > - num_joined_pipes * intel_dp_max_hdisplay_per_pipe(display)) - continue; - + for_each_joiner_candidate(connector, adjusted_mode, num_joined_pipes) { if (num_joined_pipes > 1) pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe); @@ -1535,19 +1524,9 @@ mst_connector_mode_valid_ctx(struct drm_connector *_connector, } *status = MODE_CLOCK_HIGH; - for (num_joined_pipes = 1; num_joined_pipes <= I915_MAX_PIPES; num_joined_pipes++) { + for_each_joiner_candidate(connector, mode, num_joined_pipes) { int dsc_slice_count = 0; - if (connector->force_joined_pipes && - num_joined_pipes != connector->force_joined_pipes) - continue; - - if (!intel_dp_can_join(display, num_joined_pipes)) - continue; - - if (mode->hdisplay > num_joined_pipes * intel_dp_max_hdisplay_per_pipe(display)) - continue; - if (intel_dp_has_dsc(connector) && drm_dp_sink_supports_fec(connector->dp.fec_capability)) { /* -- 2.45.2