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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20235C04FE2 for ; Thu, 10 Aug 2023 16:04:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236502AbjHJQER (ORCPT ); Thu, 10 Aug 2023 12:04:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236310AbjHJQDx (ORCPT ); Thu, 10 Aug 2023 12:03:53 -0400 Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA2E330F7 for ; Thu, 10 Aug 2023 09:03:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=bbo2G9czqdlLqMRC6A0e/ePN6aN4MXJ1qqCGGuCTsBo=; b=g+Tndym3dEDbYnAWDVAphjoM4F CrtMlB5adjtjC6kovUpbTCyCXrIBXOIcxhqkrKhye0nE/l99zsud1HmZJ6BPW6ZJZ4z5xtdi+ANVU 7II3P8QKe7ZM6wcLrwR0VOamzKDPaHG7wUj56CHzbsEBX2D497cpq6kstAMpHa8jgR6rqt5F9VLPr tGV4pVXhzP/4lTPlG8Q+fW/lzAQWWNl4sL4/1EbJeSd5xIg8rQLKUiEKOaBqogDp74BhrpYyDbX8b /ZOFFE4XAqhJG9WhHPoN4fea7DeEmfCu9RqLWtnz+cOClmVWzeQsAEYWMbJ9A+hiJAm1bOEh3yiRD 0O8IsqSQ==; Received: from [38.44.68.151] (helo=killbill.home) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qU88P-00GjYD-LJ; Thu, 10 Aug 2023 18:03:37 +0200 From: Melissa Wen To: amd-gfx@lists.freedesktop.org, Harry Wentland , Rodrigo Siqueira , sunpeng.li@amd.com, Alex Deucher , dri-devel@lists.freedesktop.org, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch Cc: Joshua Ashton , Sebastian Wick , Xaver Hugl , Shashank Sharma , Nicholas Kazlauskas , sungjoon.kim@amd.com, Alex Hung , Pekka Paalanen , Simon Ser , kernel-dev@igalia.com, linux-kernel@vger.kernel.org Subject: [PATCH v2 09/34] drm/amd/display: add plane HDR multiplier driver-specific property Date: Thu, 10 Aug 2023 15:02:49 -0100 Message-Id: <20230810160314.48225-10-mwen@igalia.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230810160314.48225-1-mwen@igalia.com> References: <20230810160314.48225-1-mwen@igalia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joshua Ashton Multiplier to 'gain' the plane. When PQ is decoded using the fixed func transfer function to the internal FP16 fb, 1.0 -> 80 nits (on AMD at least) When sRGB is decoded, 1.0 -> 1.0. Therefore, 1.0 multiplier = 80 nits for SDR content. So if you want, 203 nits for SDR content, pass in (203.0 / 80.0). Signed-off-by: Joshua Ashton Co-developed-by: Melissa Wen Signed-off-by: Melissa Wen --- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 4 ++++ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 14 ++++++++++++++ .../drm/amd/display/amdgpu_dm/amdgpu_dm_color.c | 6 ++++++ .../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 13 +++++++++++++ 4 files changed, 37 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index 6ef958a14e16..66bae0eed80c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -359,6 +359,10 @@ struct amdgpu_mode_info { * to go from scanout/encoded values to linear values. */ struct drm_property *plane_degamma_tf_property; + /** + * @plane_hdr_mult_property: + */ + struct drm_property *plane_hdr_mult_property; }; #define AMDGPU_MAX_BL_LEVEL 0xFF diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index f6251ed89684..44f17ac11a5f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -54,6 +54,9 @@ #define HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_IEEE_REGISTRATION_ID 0x00001A #define AMD_VSDB_VERSION_3_FEATURECAP_REPLAYMODE 0x40 #define HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_VERSION_3 0x3 + +#define AMDGPU_HDR_MULT_DEFAULT (0x100000000LL) + /* #include "include/amdgpu_dal_power_if.h" #include "amdgpu_dm_irq.h" @@ -755,6 +758,17 @@ struct dm_plane_state { * linearize. */ enum amdgpu_transfer_function degamma_tf; + /** + * @hdr_mult: + * + * Multiplier to 'gain' the plane. When PQ is decoded using the fixed + * func transfer function to the internal FP16 fb, 1.0 -> 80 nits (on + * AMD at least). When sRGB is decoded, 1.0 -> 1.0, obviously. + * Therefore, 1.0 multiplier = 80 nits for SDR content. So if you + * want, 203 nits for SDR content, pass in (203.0 / 80.0). Format is + * S31.32 sign-magnitude. + */ + __u64 hdr_mult; }; struct dm_crtc_state { diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c index 7f13bcdaf016..b891aaf5f7c1 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c @@ -203,6 +203,12 @@ amdgpu_dm_create_color_properties(struct amdgpu_device *adev) return -ENOMEM; adev->mode_info.plane_degamma_tf_property = prop; + prop = drm_property_create_range(adev_to_drm(adev), + 0, "AMD_PLANE_HDR_MULT", 0, U64_MAX); + if (!prop) + return -ENOMEM; + adev->mode_info.plane_hdr_mult_property = prop; + return 0; } #endif diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c index 0a955abb1abf..ab7f0332c431 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c @@ -1331,6 +1331,7 @@ static void dm_drm_plane_reset(struct drm_plane *plane) __drm_atomic_helper_plane_reset(plane, &amdgpu_state->base); amdgpu_state->degamma_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT; + amdgpu_state->hdr_mult = AMDGPU_HDR_MULT_DEFAULT; } static struct drm_plane_state * @@ -1354,6 +1355,7 @@ dm_drm_plane_duplicate_state(struct drm_plane *plane) drm_property_blob_get(dm_plane_state->degamma_lut); dm_plane_state->degamma_tf = old_dm_plane_state->degamma_tf; + dm_plane_state->hdr_mult = old_dm_plane_state->hdr_mult; return &dm_plane_state->base; } @@ -1450,6 +1452,10 @@ dm_atomic_plane_attach_color_mgmt_properties(struct amdgpu_display_manager *dm, dm->adev->mode_info.plane_degamma_tf_property, AMDGPU_TRANSFER_FUNCTION_DEFAULT); } + /* HDR MULT is always available */ + drm_object_attach_property(&plane->base, + dm->adev->mode_info.plane_hdr_mult_property, + AMDGPU_HDR_MULT_DEFAULT); } static int @@ -1476,6 +1482,11 @@ dm_atomic_plane_set_property(struct drm_plane *plane, dm_plane_state->degamma_tf = val; dm_plane_state->base.color_mgmt_changed = 1; } + } else if (property == adev->mode_info.plane_hdr_mult_property) { + if (dm_plane_state->hdr_mult != val) { + dm_plane_state->hdr_mult = val; + dm_plane_state->base.color_mgmt_changed = 1; + } } else { drm_dbg_atomic(plane->dev, "[PLANE:%d:%s] unknown property [PROP:%d:%s]]\n", @@ -1501,6 +1512,8 @@ dm_atomic_plane_get_property(struct drm_plane *plane, dm_plane_state->degamma_lut->base.id : 0; } else if (property == adev->mode_info.plane_degamma_tf_property) { *val = dm_plane_state->degamma_tf; + } else if (property == adev->mode_info.plane_hdr_mult_property) { + *val = dm_plane_state->hdr_mult; } else { return -EINVAL; } -- 2.40.1