From patchwork Thu Aug 10 16:02:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Melissa Wen X-Patchwork-Id: 13349683 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 EBECEC001B0 for ; Thu, 10 Aug 2023 16:04:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EF6D710E577; Thu, 10 Aug 2023 16:03:59 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1BE0B10E577; Thu, 10 Aug 2023 16:03:55 +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=7h7yLqPjcU15/dvMrBp46UZ6Z5mMwdlomOvGnBFHL1M=; b=QKGFhxmjFSg4/aU9D/aH31uFaY IL6EExJybvKqUE/oSrEXus6XIUMmM6T7GZlLjL6uTvHXcuG/LvjAE5jWZkk9CxeDY5W/gmih0uWAW nFKe0Pkl1Sxc5NJq+HXauoJRYrkd+uSGeZH3rrpvQzB/bviIyVyAcpPJifQeKhdqBuH8ot/PfpPPs 0vp6aXXiyXpyZwtF7TnFm43T3p6hMwDlnAKHaLxgcCATfh0P/ZUul14HCT/lIfYqSOaDTYHm1VXm+ HAgHkBoyGPe2ofsUTH4dZfHb/sosbZ6slQUWKUmKsod2VYAjoYQrI3KqKfpTyV4xyom3qkqLCWpOe a3EeDV0A==; 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 1qU88e-00GjYD-QU; Thu, 10 Aug 2023 18:03:52 +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: [PATCH v2 16/34] drm/amd/display: add CRTC gamma TF support Date: Thu, 10 Aug 2023 15:02:56 -0100 Message-Id: <20230810160314.48225-17-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 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 , Pekka Paalanen , Shashank Sharma , Alex Hung , Xaver Hugl , linux-kernel@vger.kernel.org, kernel-dev@igalia.com, 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 pre-blending out gamma ROM, but we can use AMD color modules to program LUT parameters from a pre-defined TF and an empty regamma LUT (or bump up LUT parameters with pre-defined TF setup). v2: - update crtc color mgmt if regamma TF differs between states (Joshua) - map inverse EOTF to DC transfer function (Melissa) Signed-off-by: Joshua Ashton Co-developed-by: Melissa Wen Signed-off-by: Melissa Wen --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 + .../amd/display/amdgpu_dm/amdgpu_dm_color.c | 73 +++++++++++++++---- 2 files changed, 58 insertions(+), 16 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 77b4d671a9e0..272974b88cda 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -9456,6 +9456,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm, * when a modeset is needed, to ensure it gets reprogrammed. */ if (dm_new_crtc_state->base.color_mgmt_changed || + dm_old_crtc_state->regamma_tf != dm_new_crtc_state->regamma_tf || drm_atomic_crtc_needs_modeset(new_crtc_state)) { ret = amdgpu_dm_update_crtc_color_mgmt(dm_new_crtc_state); if (ret) 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 c0bf55416b4d..0188e82d1fdd 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 @@ -468,16 +468,18 @@ 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) { /* @@ -485,32 +487,36 @@ 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) { struct dc_transfer_func *out_tf = stream->out_transfer_func; 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 @@ -518,7 +524,7 @@ static int amdgpu_dm_set_atomic_regamma(struct dc_stream_state *stream, * from a linear base. */ out_tf->type = TF_TYPE_DISTRIBUTED_POINTS; - out_tf->tf = TRANSFER_FUNCTION_LINEAR; + out_tf->tf = tf; ret = __set_output_tf(out_tf, regamma_lut, regamma_size, has_rom); } else { @@ -564,6 +570,38 @@ static int __set_input_tf(struct dc_transfer_func *func, return res ? 0 : -ENOMEM; } +static enum dc_transfer_func_predefined +amdgpu_tf_to_dc_tf(enum amdgpu_transfer_function tf) +{ + switch (tf) + { + default: + case AMDGPU_TRANSFER_FUNCTION_DEFAULT: + case AMDGPU_TRANSFER_FUNCTION_LINEAR: + return TRANSFER_FUNCTION_LINEAR; + case AMDGPU_TRANSFER_FUNCTION_SRGB_EOTF: + case AMDGPU_TRANSFER_FUNCTION_SRGB_INV_EOTF: + return TRANSFER_FUNCTION_SRGB; + case AMDGPU_TRANSFER_FUNCTION_BT709_EOTF: + case AMDGPU_TRANSFER_FUNCTION_BT709_INV_EOTF: + return TRANSFER_FUNCTION_BT709; + case AMDGPU_TRANSFER_FUNCTION_PQ_EOTF: + case AMDGPU_TRANSFER_FUNCTION_PQ_INV_EOTF: + return TRANSFER_FUNCTION_PQ; + case AMDGPU_TRANSFER_FUNCTION_UNITY: + return TRANSFER_FUNCTION_UNITY; + case AMDGPU_TRANSFER_FUNCTION_GAMMA22_EOTF: + case AMDGPU_TRANSFER_FUNCTION_GAMMA22_INV_EOTF: + return TRANSFER_FUNCTION_GAMMA22; + case AMDGPU_TRANSFER_FUNCTION_GAMMA24_EOTF: + case AMDGPU_TRANSFER_FUNCTION_GAMMA24_INV_EOTF: + return TRANSFER_FUNCTION_GAMMA24; + case AMDGPU_TRANSFER_FUNCTION_GAMMA26_EOTF: + case AMDGPU_TRANSFER_FUNCTION_GAMMA26_INV_EOTF: + return TRANSFER_FUNCTION_GAMMA26; + } +} + /** * amdgpu_dm_verify_lut_sizes - verifies if DRM luts match the hw supported sizes * @crtc_state: the DRM CRTC state @@ -631,9 +669,12 @@ 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; + tf = amdgpu_tf_to_dc_tf(crtc->regamma_tf); + r = amdgpu_dm_verify_lut_sizes(&crtc->base); if (r) return r; @@ -683,7 +724,7 @@ int amdgpu_dm_update_crtc_color_mgmt(struct dm_crtc_state *crtc) } else { 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; }