From patchwork Thu May 6 17:23:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Werner Sembach X-Patchwork-Id: 12242851 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEE09C43461 for ; Thu, 6 May 2021 17:23:49 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9EFAE610E7 for ; Thu, 6 May 2021 17:23:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9EFAE610E7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tuxedocomputers.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B95C96E7D7; Thu, 6 May 2021 17:23:48 +0000 (UTC) Received: from srv6.fidu.org (srv6.fidu.org [159.69.62.71]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7D1AD6ECD3; Thu, 6 May 2021 17:23:47 +0000 (UTC) Received: from localhost (localhost.localdomain [127.0.0.1]) by srv6.fidu.org (Postfix) with ESMTP id 424ADC800AE; Thu, 6 May 2021 19:23:46 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at srv6.fidu.org Received: from srv6.fidu.org ([127.0.0.1]) by localhost (srv6.fidu.org [127.0.0.1]) (amavisd-new, port 10026) with LMTP id WB3n034q-CHi; Thu, 6 May 2021 19:23:46 +0200 (CEST) Received: from wsembach-tuxedo.fritz.box (p200300e37F12f2008bdED9a70B37E3f5.dip0.t-ipconnect.de [IPv6:2003:e3:7f12:f200:8bde:d9a7:b37:e3f5]) (Authenticated sender: wse@tuxedocomputers.com) by srv6.fidu.org (Postfix) with ESMTPA id E59FEC800AB; Thu, 6 May 2021 19:23:45 +0200 (CEST) From: Werner Sembach To: ville.syrjala@linux.intel.com, airlied@linux.ie, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] drm/i915/display: New function to avoid duplicate code in upcomming commits Date: Thu, 6 May 2021 19:23:23 +0200 Message-Id: <20210506172325.1995964-2-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210506172325.1995964-1-wse@tuxedocomputers.com> References: <20210506172325.1995964-1-wse@tuxedocomputers.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Werner Sembach Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Moves some checks that later will be performed 2 times to an own fuction. This avoids duplicate code later on. Signed-off-by: Werner Sembach --- drivers/gpu/drm/i915/display/intel_hdmi.c | 41 ++++++++++++++--------- 1 file changed, 26 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 46de56af33db..576d3d910d06 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1861,6 +1861,31 @@ static int intel_hdmi_port_clock(int clock, int bpc) return clock * bpc / 8; } +static enum drm_mode_status +intel_hdmi_mode_clock_valid(struct intel_hdmi *hdmi, int clock, bool has_hdmi_sink) +{ + struct drm_device *dev = intel_hdmi_to_dev(hdmi); + struct drm_i915_private *dev_priv = to_i915(dev); + enum drm_mode_status status; + + /* check if we can do 8bpc */ + status = hdmi_port_clock_valid(hdmi, clock, true, has_hdmi_sink); + + if (has_hdmi_sink) { + /* if we can't do 8bpc we may still be able to do 12bpc */ + if (status != MODE_OK && !HAS_GMCH(dev_priv)) + status = hdmi_port_clock_valid(hdmi, clock * 3 / 2, + true, has_hdmi_sink); + + /* if we can't do 8,12bpc we may still be able to do 10bpc */ + if (status != MODE_OK && INTEL_GEN(dev_priv) >= 11) + status = hdmi_port_clock_valid(hdmi, clock * 5 / 4, + true, has_hdmi_sink); + } + + return status; +} + static enum drm_mode_status intel_hdmi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) @@ -1891,21 +1916,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector, if (drm_mode_is_420_only(&connector->display_info, mode)) clock /= 2; - /* check if we can do 8bpc */ - status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 8), - true, has_hdmi_sink); - - if (has_hdmi_sink) { - /* if we can't do 8bpc we may still be able to do 12bpc */ - if (status != MODE_OK && !HAS_GMCH(dev_priv)) - status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 12), - true, has_hdmi_sink); - - /* if we can't do 8,12bpc we may still be able to do 10bpc */ - if (status != MODE_OK && DISPLAY_VER(dev_priv) >= 11) - status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 10), - true, has_hdmi_sink); - } + status = intel_hdmi_mode_clock_valid(hdmi, clock, has_hdmi_sink); if (status != MODE_OK) return status; From patchwork Thu May 6 17:23:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Werner Sembach X-Patchwork-Id: 12242853 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F193DC43461 for ; Thu, 6 May 2021 17:23:53 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 95697610CE for ; Thu, 6 May 2021 17:23:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95697610CE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tuxedocomputers.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C72AD6ECD1; Thu, 6 May 2021 17:23:52 +0000 (UTC) Received: from srv6.fidu.org (srv6.fidu.org [IPv6:2a01:4f8:231:de0::2]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8712B6ECD3; Thu, 6 May 2021 17:23:51 +0000 (UTC) Received: from localhost (localhost.localdomain [127.0.0.1]) by srv6.fidu.org (Postfix) with ESMTP id D58B0C800AE; Thu, 6 May 2021 19:23:49 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at srv6.fidu.org Received: from srv6.fidu.org ([127.0.0.1]) by localhost (srv6.fidu.org [127.0.0.1]) (amavisd-new, port 10026) with LMTP id E_O1LAIMkALQ; Thu, 6 May 2021 19:23:49 +0200 (CEST) Received: from wsembach-tuxedo.fritz.box (p200300e37F12f2008bdED9a70B37E3f5.dip0.t-ipconnect.de [IPv6:2003:e3:7f12:f200:8bde:d9a7:b37:e3f5]) (Authenticated sender: wse@tuxedocomputers.com) by srv6.fidu.org (Postfix) with ESMTPA id 8FB04C800AB; Thu, 6 May 2021 19:23:49 +0200 (CEST) From: Werner Sembach To: ville.syrjala@linux.intel.com, airlied@linux.ie, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/3] drm/i915/display: Restructure output format computation for better expandability Date: Thu, 6 May 2021 19:23:24 +0200 Message-Id: <20210506172325.1995964-3-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210506172325.1995964-1-wse@tuxedocomputers.com> References: <20210506172325.1995964-1-wse@tuxedocomputers.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Werner Sembach Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Couples the decission between RGB and YCbCr420 mode and the check if the port clock can archive the required frequency. Other checks and configuration steps that where previously done in between can also be done before or after. This allows for are cleaner implementation of retrying different color encodings. Slight change in behaviour: If YCbCr420 is not allowed but display is YCbCr420 only it no longer fails, but just prints an error and tries to fallback on RGB. Signed-off-by: Werner Sembach --- drivers/gpu/drm/i915/display/intel_hdmi.c | 65 ++++++++++++----------- 1 file changed, 34 insertions(+), 31 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 576d3d910d06..b0201d4f27eb 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1999,29 +1999,6 @@ static bool hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state, INTEL_OUTPUT_FORMAT_YCBCR420); } -static int -intel_hdmi_ycbcr420_config(struct intel_crtc_state *crtc_state, - const struct drm_connector_state *conn_state) -{ - struct drm_connector *connector = conn_state->connector; - struct drm_i915_private *i915 = to_i915(connector->dev); - const struct drm_display_mode *adjusted_mode = - &crtc_state->hw.adjusted_mode; - - if (!drm_mode_is_420_only(&connector->display_info, adjusted_mode)) - return 0; - - if (!connector->ycbcr_420_allowed) { - drm_err(&i915->drm, - "Platform doesn't support YCBCR420 output\n"); - return -EINVAL; - } - - crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR420; - - return intel_pch_panel_fitting(crtc_state, conn_state); -} - static int intel_hdmi_compute_bpc(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, int clock) @@ -2128,6 +2105,30 @@ static bool intel_hdmi_has_audio(struct intel_encoder *encoder, return intel_conn_state->force_audio == HDMI_AUDIO_ON; } +static int intel_hdmi_compute_output_format(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state) +{ + struct drm_connector *connector = conn_state->connector; + struct drm_i915_private *i915 = to_i915(connector->dev); + const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + int ret; + bool ycbcr_420_only; + + ycbcr_420_only = drm_mode_is_420_only(&connector->display_info, adjusted_mode); + if (connector->ycbcr_420_allowed && ycbcr_420_only) + crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR420; + else { + if (!connector->ycbcr_420_allowed && ycbcr_420_only) + drm_err(&i915->drm, "Display only supports YCbCr420 output, but connector does not allow it. Fallback to RGB, but this will likely fail.\n"); + crtc_state->output_format = INTEL_OUTPUT_FORMAT_RGB; + } + + ret = intel_hdmi_compute_clock(encoder, crtc_state); + + return ret; +} + int intel_hdmi_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) @@ -2152,23 +2153,25 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) pipe_config->pixel_multiplier = 2; - ret = intel_hdmi_ycbcr420_config(pipe_config, conn_state); - if (ret) - return ret; - - pipe_config->limited_color_range = - intel_hdmi_limited_color_range(pipe_config, conn_state); - if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv)) pipe_config->has_pch_encoder = true; pipe_config->has_audio = intel_hdmi_has_audio(encoder, pipe_config, conn_state); - ret = intel_hdmi_compute_clock(encoder, pipe_config); + ret = intel_hdmi_compute_output_format(encoder, pipe_config, conn_state); if (ret) return ret; + if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) { + ret = intel_pch_panel_fitting(pipe_config, conn_state); + if (ret) + return ret; + } + + pipe_config->limited_color_range = + intel_hdmi_limited_color_range(pipe_config, conn_state); + if (conn_state->picture_aspect_ratio) adjusted_mode->picture_aspect_ratio = conn_state->picture_aspect_ratio; From patchwork Thu May 6 17:23:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Werner Sembach X-Patchwork-Id: 12242855 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A5F8C433ED for ; Thu, 6 May 2021 17:23:57 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 44C7B610CE for ; Thu, 6 May 2021 17:23:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 44C7B610CE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tuxedocomputers.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6F9B26ECDB; Thu, 6 May 2021 17:23:56 +0000 (UTC) Received: from srv6.fidu.org (srv6.fidu.org [IPv6:2a01:4f8:231:de0::2]) by gabe.freedesktop.org (Postfix) with ESMTPS id 804236ECDB; Thu, 6 May 2021 17:23:55 +0000 (UTC) Received: from localhost (localhost.localdomain [127.0.0.1]) by srv6.fidu.org (Postfix) with ESMTP id 4209CC800AE; Thu, 6 May 2021 19:23:54 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at srv6.fidu.org Received: from srv6.fidu.org ([127.0.0.1]) by localhost (srv6.fidu.org [127.0.0.1]) (amavisd-new, port 10026) with LMTP id CsIGQ_C43pi9; Thu, 6 May 2021 19:23:54 +0200 (CEST) Received: from wsembach-tuxedo.fritz.box (p200300e37F12f2008bdED9a70B37E3f5.dip0.t-ipconnect.de [IPv6:2003:e3:7f12:f200:8bde:d9a7:b37:e3f5]) (Authenticated sender: wse@tuxedocomputers.com) by srv6.fidu.org (Postfix) with ESMTPA id 04212C800AB; Thu, 6 May 2021 19:23:54 +0200 (CEST) From: Werner Sembach To: ville.syrjala@linux.intel.com, airlied@linux.ie, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] drm/i915/display: Use YCbCr420 as fallback when RGB fails Date: Thu, 6 May 2021 19:23:25 +0200 Message-Id: <20210506172325.1995964-4-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210506172325.1995964-1-wse@tuxedocomputers.com> References: <20210506172325.1995964-1-wse@tuxedocomputers.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Werner Sembach Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" When encoder validation of a display mode fails, retry with less bandwidth heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups to support 4k60Hz output, which previously failed silently. AMDGPU had nearly the exact same issue. This problem description is therefore copied from my commit message of the AMDGPU patch. On some setups, while the monitor and the gpu support display modes with pixel clocks of up to 600MHz, the link encoder might not. This prevents YCbCr444 and RGB encoding for 4k60Hz, but YCbCr420 encoding might still be possible. However, which color mode is used is decided before the link encoder capabilities are checked. This patch fixes the problem by retrying to find a display mode with YCbCr420 enforced and using it, if it is valid. Signed-off-by: Werner Sembach --- drivers/gpu/drm/i915/display/intel_hdmi.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index b0201d4f27eb..7815569267e3 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1897,6 +1897,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector, int clock = mode->clock; int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; bool has_hdmi_sink = intel_has_hdmi_sink(hdmi, connector->state); + bool ycbcr_420_only; if (mode->flags & DRM_MODE_FLAG_DBLSCAN) return MODE_NO_DBLESCAN; @@ -1913,12 +1914,20 @@ intel_hdmi_mode_valid(struct drm_connector *connector, clock *= 2; } - if (drm_mode_is_420_only(&connector->display_info, mode)) + ycbcr_420_only = drm_mode_is_420_only(&connector->display_info, mode); + if (ycbcr_420_only) clock /= 2; status = intel_hdmi_mode_clock_valid(hdmi, clock, has_hdmi_sink); - if (status != MODE_OK) - return status; + if (status != MODE_OK) { + if (ycbcr_420_only || !connector->ycbcr_420_allowed || !drm_mode_is_420_also(&connector->display_info, mode)) + return status; + + clock /= 2; + status = intel_hdmi_mode_clock_valid(hdmi, clock, has_hdmi_sink); + if (status != MODE_OK) + return status; + } return intel_mode_valid_max_plane_size(dev_priv, mode, false); } @@ -2125,6 +2134,14 @@ static int intel_hdmi_compute_output_format(struct intel_encoder *encoder, } ret = intel_hdmi_compute_clock(encoder, crtc_state); + if (ret) { + if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_YCBCR420 && + connector->ycbcr_420_allowed && + drm_mode_is_420_also(&connector->display_info, adjusted_mode)) { + crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR420; + ret = intel_hdmi_compute_clock(encoder, crtc_state); + } + } return ret; }