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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 50604C433B4 for ; Fri, 30 Apr 2021 09:45:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2817C6145B for ; Fri, 30 Apr 2021 09:45:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229543AbhD3Jpu (ORCPT ); Fri, 30 Apr 2021 05:45:50 -0400 Received: from new4-smtp.messagingengine.com ([66.111.4.230]:36095 "EHLO new4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231497AbhD3Jpt (ORCPT ); Fri, 30 Apr 2021 05:45:49 -0400 Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailnew.nyi.internal (Postfix) with ESMTP id B437C5800D2; Fri, 30 Apr 2021 05:45:01 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute7.internal (MEProxy); Fri, 30 Apr 2021 05:45:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=eN39p5vJIbDjb RQbd/mDCmrw3PQfz6DlV2YEYmhqxaI=; b=iYkebr/qoDHsczTDn+mKPJtqKwIg3 MDSuR848zw4nfrxmB3JYG1TWF6xMqSQt+bKHVhnRj6K4nNurQMp1wuitRtUkcxzT Oy94mnfGZW8lnqlRGdO4VlFaSGNABUOu43TTD/pvhItGU38jCrsDfYvC+jKDVwOz CHDgZakNfVS9wAsQ6ec/x6wgIANgN/TXi4rSwg4s83nAHBYrd8UwOxnv7AY4d6J3 wRLQxH2lQfRcmrMrdWGcqyR6AYeHyB2JQrMNaL6oFesuBhkK20iTlVYAPB/LjsXP 9l02Woi4dB0W6i45+HaWny9roLsxwCTRXblUl1Q22WnjhwDfJvJsEEVjA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=eN39p5vJIbDjbRQbd/mDCmrw3PQfz6DlV2YEYmhqxaI=; b=L6IL6WXH RBCbidMFBS4n/IyJMSMIJGmXgFYEF8xZz9NBWwWpu/a9uIYASuayQcxlUiz8Dg4z QIobWLDCKHaVdACcwl4l5Hvhhl5gbfkJXFJlCUk0Lms9nOI+y5d2NLGkuQ2vE1xO xXIXZ+dKkcffwuLxUtXOOQjRuRyDFbYQnBSiR1g9r+WRLoMSzQDdKGq9LFr2hcar xznW9bXrA9EqlJOzPWF6KitjMqWWQIhzsdlk8t6hFszbCr5ATA28ml+OUvptDOJv aIV81J0RlC+isHv7V0aVZrIMMuCcjVQUw93Sb/mzbspfkrWPpRGilKGs71qhf0X7 9kl6JiSUHxzqlw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrvddviedgudekucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeforgigihhm vgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrfgrth htvghrnhepvdekleevfeffkeejhfffueelteelfeduieefheduudfggffhhfffheevveeh hedvnecukfhppeeltddrkeelrdeikedrjeeinecuvehluhhsthgvrhfuihiivgeptdenuc frrghrrghmpehmrghilhhfrhhomhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: from localhost (lfbn-tou-1-1502-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 30 Apr 2021 05:44:59 -0400 (EDT) From: Maxime Ripard To: dri-devel@lists.freedesktop.org, Daniel Vetter , David Airlie , Maarten Lankhorst , Thomas Zimmermann , Maxime Ripard Cc: Maxime Ripard , Rodrigo Vivi , Daniel Vetter , Laurent Pinchart , Neil Armstrong , Jernej Skrabec , linux-kernel@vger.kernel.org, Leo Li , Jonas Karlman , Andrzej Hajda , Jani Nikula , Robert Foss , Eric Anholt , Alex Deucher , Harry Wentland , Joonas Lahtinen , =?UTF-8?q?Christian=20K=C3=B6nig?= , amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, Dave Stevenson , Phil Elwell , Tim Gover , Dom Cobley Subject: [PATCH v3 2/5] drm/connector: Add helper to compare HDR metadata Date: Fri, 30 Apr 2021 11:44:48 +0200 Message-Id: <20210430094451.2145002-2-maxime@cerno.tech> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210430094451.2145002-1-maxime@cerno.tech> References: <20210430094451.2145002-1-maxime@cerno.tech> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org All the drivers that support the HDR metadata property have a similar function to compare the metadata from one connector state to the next, and force a mode change if they differ. All these functions run pretty much the same code, so let's turn it into an helper that can be shared across those drivers. Reviewed-by: Harry Wentland Reviewed-by: Jernej Skrabec Signed-off-by: Maxime Ripard --- Changes from v2: - Rebased on current drm-misc-next Changes from v1: - Rebased on latest drm-misc-next tag - Added the tags - Fix build breakage on amdgpu --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 23 ++------------- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 17 +---------- drivers/gpu/drm/drm_connector.c | 28 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_atomic.c | 13 +-------- include/drm/drm_connector.h | 2 ++ 5 files changed, 34 insertions(+), 49 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c8d7e7dbc05e..296704ce3768 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6275,25 +6275,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state, return 0; } -static bool -is_hdr_metadata_different(const struct drm_connector_state *old_state, - const struct drm_connector_state *new_state) -{ - struct drm_property_blob *old_blob = old_state->hdr_output_metadata; - struct drm_property_blob *new_blob = new_state->hdr_output_metadata; - - if (old_blob != new_blob) { - if (old_blob && new_blob && - old_blob->length == new_blob->length) - return memcmp(old_blob->data, new_blob->data, - old_blob->length); - - return true; - } - - return false; -} - static int amdgpu_dm_connector_atomic_check(struct drm_connector *conn, struct drm_atomic_state *state) @@ -6311,7 +6292,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn, if (!crtc) return 0; - if (is_hdr_metadata_different(old_con_state, new_con_state)) { + if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) { struct dc_info_packet hdr_infopacket; ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket); @@ -8803,7 +8784,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) dm_old_crtc_state->abm_level; hdr_changed = - is_hdr_metadata_different(old_con_state, new_con_state); + !drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state); if (!scaling_changed && !abm_changed && !hdr_changed) continue; diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index dd7f6eda2ce2..e7c7c9b9c646 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector) return ret; } -static bool hdr_metadata_equal(const struct drm_connector_state *old_state, - const struct drm_connector_state *new_state) -{ - struct drm_property_blob *old_blob = old_state->hdr_output_metadata; - struct drm_property_blob *new_blob = new_state->hdr_output_metadata; - - if (!old_blob || !new_blob) - return old_blob == new_blob; - - if (old_blob->length != new_blob->length) - return false; - - return !memcmp(old_blob->data, new_blob->data, old_blob->length); -} - static int dw_hdmi_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state) { @@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector, if (!crtc) return 0; - if (!hdr_metadata_equal(old_state, new_state)) { + if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) { crtc_state = drm_atomic_get_crtc_state(state, crtc); if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index c5e2f642acd9..eed9cd05c94e 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2172,6 +2172,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn } EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property); +/** + * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed + * @old_state: old connector state to compare + * @new_state: new connector state to compare + * + * This is used by HDR-enabled drivers to test whether the HDR metadata + * have changed between two different connector state (and thus probably + * requires a full blown mode change). + * + * Returns: + * True if the metadata are equal, False otherwise + */ +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, + struct drm_connector_state *new_state) +{ + struct drm_property_blob *old_blob = old_state->hdr_output_metadata; + struct drm_property_blob *new_blob = new_state->hdr_output_metadata; + + if (!old_blob || !new_blob) + return old_blob == new_blob; + + if (old_blob->length != new_blob->length) + return false; + + return !memcmp(old_blob->data, new_blob->data, old_blob->length); +} +EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal); + /** * drm_connector_set_vrr_capable_property - sets the variable refresh rate * capable property for a connector diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index 4fa389fce8cb..084da7a76b1c 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector, return -EINVAL; } -static bool blob_equal(const struct drm_property_blob *a, - const struct drm_property_blob *b) -{ - if (a && b) - return a->length == b->length && - !memcmp(a->data, b->data, a->length); - - return !a == !b; -} - int intel_digital_connector_atomic_check(struct drm_connector *conn, struct drm_atomic_state *state) { @@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn, new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || new_conn_state->base.content_type != old_conn_state->base.content_type || new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode || - !blob_equal(new_conn_state->base.hdr_output_metadata, - old_conn_state->base.hdr_output_metadata)) + !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) crtc_state->mode_changed = true; return 0; diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 32172dab8427..1f51d73ca715 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, int drm_connector_attach_vrr_capable_property( struct drm_connector *connector); int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector); +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, + struct drm_connector_state *new_state); int drm_mode_create_aspect_ratio_property(struct drm_device *dev); int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector); int drm_mode_create_dp_colorspace_property(struct drm_connector *connector); -- 2.31.1