From patchwork Wed Sep 18 14:43:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 13806962 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 07822CCD1BF for ; Wed, 18 Sep 2024 14:42:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 907FD10E5C7; Wed, 18 Sep 2024 14:42:08 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="W7WOxZ8+"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id D474C10E5C4; Wed, 18 Sep 2024 14:42:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1726670524; x=1758206524; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=aB7upEyHkC9R5HQUiJWaJ7Srjcb8gCgWga0/Ngl0FE0=; b=W7WOxZ8+E6xD0n2STvkD5Wjew3iYKa1t/wIhHHaYrNsqd6yEZ6UYQz2L 3RM/oaM7DaYONOgPFJW4qUW0C3ePIspthKVfK/Rvl7of9ozzCoehoWAdf Eizx92qkBecXGMeeTbK4GzOSkORC8ai1fWtSVu1IKXi7zIR75THnw0kQq x+jyLxfk20+kjtP1D/6nR4lBQUTIl/qsxLtzIpvqPaQBBhy6EwzyeW1YG IbXF2uVSUCVRKTduhxlUoeRFWoLHT8Lv3t2b0vhmcipyMH1ltn9FrumNf wkCbqDEaBpA0rVuzuStaURncwi+uTyC2qwE1Tv2FC/OIdorkiZaxPivD6 A==; X-CSE-ConnectionGUID: 1Sa4726wSxyS3BF78J/ftw== X-CSE-MsgGUID: S2YZ7vXERKSOOyNbYXKD5Q== X-IronPort-AV: E=McAfee;i="6700,10204,11199"; a="29481723" X-IronPort-AV: E=Sophos;i="6.10,239,1719903600"; d="scan'208";a="29481723" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2024 07:42:04 -0700 X-CSE-ConnectionGUID: uyEauUfWRGWT+g8N6K095g== X-CSE-MsgGUID: KlyG+Y5JTZO6sqjXu5ZLSg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,239,1719903600"; d="scan'208";a="69200373" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2024 07:42:01 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org, suraj.kandpal@intel.com, ville.syrjala@linux.intel.com Subject: [PATCH 05/15] drm/i915/dp: Add helper to compute num pipes required Date: Wed, 18 Sep 2024 20:13:33 +0530 Message-ID: <20240918144343.2876184-6-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240918144343.2876184-1-ankit.k.nautiyal@intel.com> References: <20240918144343.2876184-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 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" Add a helper to compute the number of pipes required. This will depend on whether the joiner is required or is forced through the debugfs. If no joiner is required the helper returns 1. v2: -Return 1 if no joiner is required. (Ville) -Change the suffix from joined_pipes to num_pipes. (Ville) -Use number of pipes while calculating joined_pipe masks and max_dotclk. (Ville) Signed-off-by: Ankit Nautiyal Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/intel_dp.c | 51 +++++++++++++-------- drivers/gpu/drm/i915/display/intel_dp.h | 6 +-- drivers/gpu/drm/i915/display/intel_dp_mst.c | 23 ++++------ 3 files changed, 44 insertions(+), 36 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 2e35a81fa6d1..96ad048b68cf 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1270,17 +1270,35 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector, return MODE_OK; } -bool intel_dp_need_joiner(struct intel_dp *intel_dp, - struct intel_connector *connector, - int hdisplay, int clock) +static +bool intel_dp_needs_bigjoiner(struct intel_dp *intel_dp, + struct intel_connector *connector, + int hdisplay, int clock) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); if (!intel_dp_has_joiner(intel_dp)) return false; - return clock > i915->display.cdclk.max_dotclk_freq || hdisplay > 5120 || - connector->force_joined_pipes == 2; + return clock > i915->display.cdclk.max_dotclk_freq || hdisplay > 5120; +} + +int intel_dp_compute_num_pipes(struct intel_dp *intel_dp, + struct intel_connector *connector, + int hdisplay, int clock) +{ + switch (connector->force_joined_pipes) { + case 2: + return connector->force_joined_pipes; + default: + MISSING_CASE(connector->force_joined_pipes); + fallthrough; + case 0: + if (intel_dp_needs_bigjoiner(intel_dp, connector, hdisplay, clock)) + return 2; + } + + return 1; } bool intel_dp_has_dsc(const struct intel_connector *connector) @@ -1317,7 +1335,7 @@ intel_dp_mode_valid(struct drm_connector *_connector, u16 dsc_max_compressed_bpp = 0; u8 dsc_slice_count = 0; enum drm_mode_status status; - bool dsc = false, joiner = false; + bool dsc = false; int num_joined_pipes; status = intel_cpu_transcoder_mode_valid(dev_priv, mode); @@ -1339,13 +1357,9 @@ intel_dp_mode_valid(struct drm_connector *_connector, target_clock = fixed_mode->clock; } - if (intel_dp_need_joiner(intel_dp, connector, - mode->hdisplay, target_clock)) { - joiner = true; - max_dotclk *= 2; - } - - num_joined_pipes = joiner ? 2 : 1; + num_joined_pipes = intel_dp_compute_num_pipes(intel_dp, connector, + mode->hdisplay, target_clock); + max_dotclk *= num_joined_pipes; if (target_clock > max_dotclk) return MODE_CLOCK_HIGH; @@ -2552,12 +2566,11 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, !intel_dp_supports_fec(intel_dp, connector, pipe_config)) return -EINVAL; - if (intel_dp_need_joiner(intel_dp, connector, - adjusted_mode->crtc_hdisplay, - adjusted_mode->crtc_clock)) - pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe); - - num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config); + num_joined_pipes = intel_dp_compute_num_pipes(intel_dp, connector, + adjusted_mode->crtc_hdisplay, + adjusted_mode->crtc_clock); + if (num_joined_pipes > 1) + pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe); joiner_needs_dsc = intel_dp_joiner_needs_dsc(i915, num_joined_pipes); diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index a0a31fb64716..d72ca99e3a1c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -154,9 +154,9 @@ int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector, int mode_clock, int mode_hdisplay, int num_joined_pipes); -bool intel_dp_need_joiner(struct intel_dp *intel_dp, - struct intel_connector *connector, - int hdisplay, int clock); +int intel_dp_compute_num_pipes(struct intel_dp *intel_dp, + struct intel_connector *connector, + int hdisplay, int clock); static inline unsigned int intel_dp_unused_lane_mask(int lane_count) { diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 7debefd4a0d6..df380f6ee76c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -580,12 +580,11 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) return -EINVAL; - if (intel_dp_need_joiner(intel_dp, connector, - adjusted_mode->crtc_hdisplay, - adjusted_mode->crtc_clock)) - pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe); - - num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config); + num_joined_pipes = intel_dp_compute_num_pipes(intel_dp, connector, + adjusted_mode->crtc_hdisplay, + adjusted_mode->crtc_clock); + if (num_joined_pipes > 1) + pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe); pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB; pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; @@ -1427,7 +1426,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, int max_dotclk = to_i915(connector->dev)->display.cdclk.max_dotclk_freq; int max_rate, mode_rate, max_lanes, max_link_clock; int ret; - bool dsc = false, joiner = false; + bool dsc = false; u16 dsc_max_compressed_bpp = 0; u8 dsc_slice_count = 0; int target_clock = mode->clock; @@ -1471,13 +1470,9 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, * corresponding link capabilities of the sink) in case the * stream is uncompressed for it by the last branch device. */ - if (intel_dp_need_joiner(intel_dp, intel_connector, - mode->hdisplay, target_clock)) { - joiner = true; - max_dotclk *= 2; - } - - num_joined_pipes = joiner ? 2 : 1; + num_joined_pipes = intel_dp_compute_num_pipes(intel_dp, intel_connector, + mode->hdisplay, target_clock); + max_dotclk *= num_joined_pipes; ret = drm_modeset_lock(&mgr->base.lock, ctx); if (ret)