From patchwork Sun Apr 23 14:10:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13221353 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 C6E67C6FD18 for ; Sun, 23 Apr 2023 14:13:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2F8D710E3FF; Sun, 23 Apr 2023 14:13:40 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id EAA8410E3FA; Sun, 23 Apr 2023 14:13:29 +0000 (UTC) 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=Hj+41OAGChCkaIi9YXRqlEYXZ5g/+UsZBvfDycRkUvs=; b=AQBnmpqHLmaGWXY8B+vvIMQ5fI FsT0iFt+CjslQ7cEGoxl5K2M+FTdDpUAE464kVGnbtKcrwodU4Fa3RwE1+wj2mUDdr0Ata/aqt1OG ie1fkBpZFsFebdeOabZum2K/5ateXqXV+un/E5r6SmgwKPbpYAbotaH4PPQfti7K5bbrrQmoIqK1+ bL+Uh06UrTyrUCWImEsm4bsY6cXMPU3w3cmksPrJB3QaDazsTdT7Qiq3X8IK1RtU0MNhFKuDlcWnF nbgWCSheuGPQaW2ADYc7XKBg2xwcq384WVArUiI0qhWKruD79KY/RKvcuPwLyhNvPR0rVyz8DA6Cz QXAsGmPg==; Received: from nat-wifi.fi.muni.cz ([147.251.43.9] helo=killbill.fi.muni.cz) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1pqaT1-00ANVs-I6; Sun, 23 Apr 2023 16:13:27 +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 Subject: [RFC PATCH 27/40] drm/amd/display: add CRTC regamma TF support Date: Sun, 23 Apr 2023 13:10:39 -0100 Message-Id: <20230423141051.702990-28-mwen@igalia.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230423141051.702990-1-mwen@igalia.com> References: <20230423141051.702990-1-mwen@igalia.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: Sebastian Wick , Shashank Sharma , Alex Hung , Xaver Hugl , linux-kernel@vger.kernel.org, Nicholas Kazlauskas , Joshua Ashton , sungjoon.kim@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Joshua Ashton Add predefined transfer function programming. There is no out gamma ROM, but we can use AMD color modules to program LUT parameters from a predefined TF and an empty regamma LUT (or power LUT parameters with predefined TF setup). Signed-off-by: Joshua Ashton --- .../amd/display/amdgpu_dm/amdgpu_dm_color.c | 60 ++++++++++++++----- 1 file changed, 44 insertions(+), 16 deletions(-) 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 ff29be3929af..55aa876a5008 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 @@ -268,16 +268,18 @@ static int __set_output_tf(struct dc_transfer_func *func, struct calculate_buffer cal_buffer = {0}; bool res; - ASSERT(lut && lut_size == MAX_COLOR_LUT_ENTRIES); - cal_buffer.buffer_index = -1; - gamma = dc_create_gamma(); - if (!gamma) - return -ENOMEM; + if (lut_size) { + ASSERT(lut && lut_size == MAX_COLOR_LUT_ENTRIES); - gamma->num_entries = lut_size; - __drm_lut_to_dc_gamma(lut, gamma, false); + gamma = dc_create_gamma(); + if (!gamma) + return -ENOMEM; + + gamma->num_entries = lut_size; + __drm_lut_to_dc_gamma(lut, gamma, false); + } if (func->tf == TRANSFER_FUNCTION_LINEAR) { /* @@ -285,30 +287,34 @@ static int __set_output_tf(struct dc_transfer_func *func, * on top of a linear input. But degamma params can be used * instead to simulate this. */ - gamma->type = GAMMA_CUSTOM; + if (gamma) + gamma->type = GAMMA_CUSTOM; res = mod_color_calculate_degamma_params(NULL, func, - gamma, true); + gamma, gamma != NULL); } else { /* * Assume sRGB. The actual mapping will depend on whether the * input was legacy or not. */ - gamma->type = GAMMA_CS_TFM_1D; - res = mod_color_calculate_regamma_params(func, gamma, false, + if (gamma) + gamma->type = GAMMA_CS_TFM_1D; + res = mod_color_calculate_regamma_params(func, gamma, gamma != NULL, has_rom, NULL, &cal_buffer); } - dc_gamma_release(&gamma); + if (gamma) + dc_gamma_release(&gamma); return res ? 0 : -ENOMEM; } static int amdgpu_dm_set_atomic_regamma(struct dc_stream_state *stream, const struct drm_color_lut *regamma_lut, - uint32_t regamma_size, bool has_rom) + uint32_t regamma_size, bool has_rom, + enum dc_transfer_func_predefined tf) { int ret = 0; - if (regamma_size) { + if (regamma_size || tf != TRANSFER_FUNCTION_LINEAR) { /* CRTC RGM goes into RGM LUT. * * Note: there is no implicit sRGB regamma here. We are using @@ -316,7 +322,7 @@ static int amdgpu_dm_set_atomic_regamma(struct dc_stream_state *stream, * from a linear base. */ stream->out_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS; - stream->out_transfer_func->tf = TRANSFER_FUNCTION_LINEAR; + stream->out_transfer_func->tf = tf; ret = __set_output_tf(stream->out_transfer_func, regamma_lut, regamma_size, has_rom); @@ -364,6 +370,25 @@ static int __set_input_tf(struct dc_transfer_func *func, } #ifdef CONFIG_STEAM_DECK +static enum dc_transfer_func_predefined drm_tf_to_dc_tf(enum drm_transfer_function drm_tf) +{ + switch (drm_tf) + { + default: + case DRM_TRANSFER_FUNCTION_DEFAULT: return TRANSFER_FUNCTION_LINEAR; + case DRM_TRANSFER_FUNCTION_SRGB: return TRANSFER_FUNCTION_SRGB; + + case DRM_TRANSFER_FUNCTION_BT709: return TRANSFER_FUNCTION_BT709; + case DRM_TRANSFER_FUNCTION_PQ: return TRANSFER_FUNCTION_PQ; + case DRM_TRANSFER_FUNCTION_LINEAR: return TRANSFER_FUNCTION_LINEAR; + case DRM_TRANSFER_FUNCTION_UNITY: return TRANSFER_FUNCTION_UNITY; + case DRM_TRANSFER_FUNCTION_HLG: return TRANSFER_FUNCTION_HLG; + case DRM_TRANSFER_FUNCTION_GAMMA22: return TRANSFER_FUNCTION_GAMMA22; + case DRM_TRANSFER_FUNCTION_GAMMA24: return TRANSFER_FUNCTION_GAMMA24; + case DRM_TRANSFER_FUNCTION_GAMMA26: return TRANSFER_FUNCTION_GAMMA26; + } +} + static void __to_dc_lut3d_color(struct dc_rgb *rgb, const struct drm_color_lut lut, int bit_precision) @@ -640,6 +665,7 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc, const struct drm_color_lut *degamma_lut, *regamma_lut; uint32_t degamma_size, regamma_size; bool has_regamma, has_degamma; + enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_LINEAR; bool is_legacy; int r; #ifdef CONFIG_STEAM_DECK @@ -652,6 +678,8 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc, lut3d = __extract_blob_lut(crtc->lut3d, &lut3d_size); shaper_lut = __extract_blob_lut(crtc->shaper_lut, &shaper_size); + + tf = drm_tf_to_dc_tf(crtc->gamma_tf); #endif r = amdgpu_dm_verify_lut_sizes(&crtc->base); @@ -718,7 +746,7 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc, */ regamma_size = has_regamma ? regamma_size : 0; r = amdgpu_dm_set_atomic_regamma(stream, regamma_lut, - regamma_size, has_rom); + regamma_size, has_rom, tf); if (r) return r; }