From patchwork Thu Dec 3 11:48:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11948543 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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 07C13C64E8A for ; Thu, 3 Dec 2020 11:49:33 +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 70AE320758 for ; Thu, 3 Dec 2020 11:49:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 70AE320758 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.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 0B8C96E995; Thu, 3 Dec 2020 11:49:25 +0000 (UTC) Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) by gabe.freedesktop.org (Postfix) with ESMTPS id B42986E983 for ; Thu, 3 Dec 2020 11:49:23 +0000 (UTC) Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0B3BnAla046631; Thu, 3 Dec 2020 05:49:10 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1606996150; bh=XwkbjGydtQkeR6TkGAX4trHaIW+i6Rld6FCr/CUKqVc=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=HEtLsXT6inmRkTzHvxehuRPdG2pgtuYuuxi0U27djpvVaEUZI6rs4/DdTMxUpmAbY EXky6afTHWzfxY0qUXWiQ/OzQ1IScvYPZMsduVbiNVIlEWjCWL+DAwWChd22V4ZuTP Ga9zRxfJan5NRJw7gEWkObE9DTKA3+oxhckgQ3LI= Received: from DFLE100.ent.ti.com (dfle100.ent.ti.com [10.64.6.21]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0B3Bn9EA098519 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 3 Dec 2020 05:49:09 -0600 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Thu, 3 Dec 2020 05:49:09 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Thu, 3 Dec 2020 05:49:09 -0600 Received: from deskari.lan (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0B3Bn0PJ094649; Thu, 3 Dec 2020 05:49:05 -0600 From: Tomi Valkeinen To: , Daniel Vetter Subject: [PATCH 1/2] drm: add legacy support for using degamma for gamma Date: Thu, 3 Dec 2020 13:48:44 +0200 Message-ID: <20201203114845.232911-2-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201203114845.232911-1-tomi.valkeinen@ti.com> References: <20201203114845.232911-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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: Yannick Fertre , Philippe Cornu , David Airlie , Russell King , Sandy Huang , Paul Cercueil , Tomi Valkeinen , Laurent Pinchart , Thomas Zimmermann , Matthias Brugger , Vincent Abriou , Maxime Coquelin , Alexandre Torgue Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" We currently have drm_atomic_helper_legacy_gamma_set() helper which can be used to handle legacy gamma-set ioctl. drm_atomic_helper_legacy_gamma_set() sets GAMMA_LUT, and clears CTM and DEGAMMA_LUT. This works fine on HW where we have either: degamma -> ctm -> gamma -> out or ctm -> gamma -> out However, if the HW has gamma table before ctm, the atomic property should be DEGAMMA_LUT, and thus we have: degamma -> ctm -> out This is fine for userspace which sets gamma table using the properties, as the userspace can check for the existence of gamma & degamma, but the legacy gamma-set ioctl does not work. This patch fixes the issue by changing drm_atomic_helper_legacy_gamma_set() so that GAMMA_LUT will be used if it exists, and DEGAMMA_LUT will be used as a fallback. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/drm_atomic_helper.c | 18 +++++++++++++++--- drivers/gpu/drm/drm_color_mgmt.c | 4 ++++ include/drm/drm_crtc.h | 3 +++ 3 files changed, 22 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index ba1507036f26..fe59c8ea42a9 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3512,6 +3512,10 @@ EXPORT_SYMBOL(drm_atomic_helper_page_flip_target); * that support color management through the DEGAMMA_LUT/GAMMA_LUT * properties. See drm_crtc_enable_color_mgmt() and the containing chapter for * how the atomic color management and gamma tables work. + * + * This function uses the GAMMA_LUT or DEGAMMA_LUT property for the gamma table. + * GAMMA_LUT property is used if it exists, and DEGAMMA_LUT property is used as + * a fallback. */ int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, u16 *blue, @@ -3525,6 +3529,12 @@ int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, struct drm_color_lut *blob_data; int i, ret = 0; bool replaced; + bool use_degamma; + + if (!crtc->has_gamma_prop && !crtc->has_degamma_prop) + return -ENODEV; + + use_degamma = !crtc->has_gamma_prop; state = drm_atomic_state_alloc(crtc->dev); if (!state) @@ -3554,10 +3564,12 @@ int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, goto fail; } - /* Reset DEGAMMA_LUT and CTM properties. */ - replaced = drm_property_replace_blob(&crtc_state->degamma_lut, NULL); + /* Set GAMMA/DEGAMMA_LUT and reset DEGAMMA/GAMMA_LUT and CTM */ + replaced = drm_property_replace_blob(&crtc_state->degamma_lut, + use_degamma ? blob : NULL); replaced |= drm_property_replace_blob(&crtc_state->ctm, NULL); - replaced |= drm_property_replace_blob(&crtc_state->gamma_lut, blob); + replaced |= drm_property_replace_blob(&crtc_state->gamma_lut, + use_degamma ? NULL : blob); crtc_state->color_mgmt_changed |= replaced; ret = drm_atomic_commit(state); diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c index 3bcabc2f6e0e..956e59d5f6a7 100644 --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -176,6 +176,8 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, degamma_lut_size); } + crtc->has_degamma_prop = !!degamma_lut_size; + if (has_ctm) drm_object_attach_property(&crtc->base, config->ctm_property, 0); @@ -187,6 +189,8 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, config->gamma_lut_size_property, gamma_lut_size); } + + crtc->has_gamma_prop = !!gamma_lut_size; } EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index ba839e5e357d..9e1f06047e3d 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1084,6 +1084,9 @@ struct drm_crtc { */ uint16_t *gamma_store; + bool has_gamma_prop; + bool has_degamma_prop; + /** @helper_private: mid-layer private data */ const struct drm_crtc_helper_funcs *helper_private; From patchwork Thu Dec 3 11:48:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11948545 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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 B7743C63777 for ; Thu, 3 Dec 2020 11:49:33 +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 4A61120758 for ; Thu, 3 Dec 2020 11:49:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4A61120758 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.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 0EB806E98D; Thu, 3 Dec 2020 11:49:26 +0000 (UTC) Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by gabe.freedesktop.org (Postfix) with ESMTPS id 76D3C6E983 for ; Thu, 3 Dec 2020 11:49:24 +0000 (UTC) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0B3BnE6s030316; Thu, 3 Dec 2020 05:49:14 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1606996154; bh=KBKPXevgiVL65ZIIHFJU4y53JXwAF4FELTcfkacrNpc=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=O1LKR21RI+eRR3LY9p+Aauw0ra7vn9Bj9XJTI8TO8sFBCJPGUP/B9/FmiDDtC4lfM L+lNPfHlhMvUbxjfK1by+WgBjavCo94vChzbLbUn+FDkeICDVmvzBcGQe0RA+teZBI MOfhQcrdfYqPR3BG6l2jsazMPyDdv0ixFAT0ZZjE= Received: from DLEE101.ent.ti.com (dlee101.ent.ti.com [157.170.170.31]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0B3BnE33114699 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 3 Dec 2020 05:49:14 -0600 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Thu, 3 Dec 2020 05:49:13 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Thu, 3 Dec 2020 05:49:13 -0600 Received: from deskari.lan (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0B3Bn0PK094649; Thu, 3 Dec 2020 05:49:09 -0600 From: Tomi Valkeinen To: , Daniel Vetter Subject: [PATCH 2/2] drm: automatic legacy gamma support Date: Thu, 3 Dec 2020 13:48:45 +0200 Message-ID: <20201203114845.232911-3-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201203114845.232911-1-tomi.valkeinen@ti.com> References: <20201203114845.232911-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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: Yannick Fertre , Philippe Cornu , David Airlie , Russell King , Sandy Huang , Paul Cercueil , Tomi Valkeinen , Laurent Pinchart , Thomas Zimmermann , Matthias Brugger , Vincent Abriou , Maxime Coquelin , Alexandre Torgue Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To support legacy gamma ioctls the drivers need to set drm_crtc_funcs.gamma_set either to a custom implementation or to drm_atomic_helper_legacy_gamma_set. Most of the atomic drivers do the latter. We can simplify this by making the core handle it automatically. Add two functions: drm_crtc_supports_legacy_gamma() which tells if the legacy gamma table can be set, and drm_crtc_legacy_gamma_set() which does the work by either calling the drm_crtc_funcs.gamma_set or using GAMMA_LUT or DEGAMMA_LUT. We can then drop drm_atomic_helper_legacy_gamma_set() and remove all its uses. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 - .../gpu/drm/arm/display/komeda/komeda_crtc.c | 1 - drivers/gpu/drm/arm/malidp_crtc.c | 1 - drivers/gpu/drm/armada/armada_crtc.c | 1 - drivers/gpu/drm/ast/ast_mode.c | 1 - .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 1 - drivers/gpu/drm/drm_atomic_helper.c | 82 ------------- drivers/gpu/drm/drm_color_mgmt.c | 113 +++++++++++++++++- drivers/gpu/drm/drm_fb_helper.c | 12 +- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 2 - drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 - drivers/gpu/drm/nouveau/dispnv50/head.c | 2 - drivers/gpu/drm/omapdrm/omap_crtc.c | 1 - drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 1 - drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 - drivers/gpu/drm/stm/ltdc.c | 1 - drivers/gpu/drm/vc4/vc4_crtc.c | 1 - drivers/gpu/drm/vc4/vc4_txp.c | 1 - include/drm/drm_atomic_helper.h | 4 - include/drm/drm_color_mgmt.h | 7 ++ 20 files changed, 123 insertions(+), 112 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 2855bb918535..848b06c51b0e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5396,7 +5396,6 @@ static void dm_disable_vblank(struct drm_crtc *crtc) static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = { .reset = dm_crtc_reset_state, .destroy = amdgpu_dm_crtc_destroy, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, .atomic_duplicate_state = dm_crtc_duplicate_state, diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 4b485eb512e2..59172acb9738 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -550,7 +550,6 @@ static void komeda_crtc_vblank_disable(struct drm_crtc *crtc) } static const struct drm_crtc_funcs komeda_crtc_funcs = { - .gamma_set = drm_atomic_helper_legacy_gamma_set, .destroy = drm_crtc_cleanup, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, diff --git a/drivers/gpu/drm/arm/malidp_crtc.c b/drivers/gpu/drm/arm/malidp_crtc.c index 108e7a31bd26..494075ddbef6 100644 --- a/drivers/gpu/drm/arm/malidp_crtc.c +++ b/drivers/gpu/drm/arm/malidp_crtc.c @@ -510,7 +510,6 @@ static void malidp_crtc_disable_vblank(struct drm_crtc *crtc) } static const struct drm_crtc_funcs malidp_crtc_funcs = { - .gamma_set = drm_atomic_helper_legacy_gamma_set, .destroy = drm_crtc_cleanup, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index 3ebcf5a52c8b..b7bb90ae787f 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -820,7 +820,6 @@ static const struct drm_crtc_funcs armada_crtc_funcs = { .cursor_set = armada_drm_crtc_cursor_set, .cursor_move = armada_drm_crtc_cursor_move, .destroy = armada_drm_crtc_destroy, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index 9db371f4054f..5b0ec785c516 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -903,7 +903,6 @@ static void ast_crtc_atomic_destroy_state(struct drm_crtc *crtc, static const struct drm_crtc_funcs ast_crtc_funcs = { .reset = ast_crtc_reset, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .destroy = drm_crtc_cleanup, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index c58fa00b4848..05ad75d155e8 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -473,7 +473,6 @@ static const struct drm_crtc_funcs atmel_hlcdc_crtc_funcs = { .atomic_destroy_state = atmel_hlcdc_crtc_destroy_state, .enable_vblank = atmel_hlcdc_crtc_enable_vblank, .disable_vblank = atmel_hlcdc_crtc_disable_vblank, - .gamma_set = drm_atomic_helper_legacy_gamma_set, }; int atmel_hlcdc_crtc_create(struct drm_device *dev) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index fe59c8ea42a9..b114658100b3 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3499,88 +3499,6 @@ int drm_atomic_helper_page_flip_target(struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_atomic_helper_page_flip_target); -/** - * drm_atomic_helper_legacy_gamma_set - set the legacy gamma correction table - * @crtc: CRTC object - * @red: red correction table - * @green: green correction table - * @blue: green correction table - * @size: size of the tables - * @ctx: lock acquire context - * - * Implements support for legacy gamma correction table for drivers - * that support color management through the DEGAMMA_LUT/GAMMA_LUT - * properties. See drm_crtc_enable_color_mgmt() and the containing chapter for - * how the atomic color management and gamma tables work. - * - * This function uses the GAMMA_LUT or DEGAMMA_LUT property for the gamma table. - * GAMMA_LUT property is used if it exists, and DEGAMMA_LUT property is used as - * a fallback. - */ -int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, - u16 *red, u16 *green, u16 *blue, - uint32_t size, - struct drm_modeset_acquire_ctx *ctx) -{ - struct drm_device *dev = crtc->dev; - struct drm_atomic_state *state; - struct drm_crtc_state *crtc_state; - struct drm_property_blob *blob = NULL; - struct drm_color_lut *blob_data; - int i, ret = 0; - bool replaced; - bool use_degamma; - - if (!crtc->has_gamma_prop && !crtc->has_degamma_prop) - return -ENODEV; - - use_degamma = !crtc->has_gamma_prop; - - state = drm_atomic_state_alloc(crtc->dev); - if (!state) - return -ENOMEM; - - blob = drm_property_create_blob(dev, - sizeof(struct drm_color_lut) * size, - NULL); - if (IS_ERR(blob)) { - ret = PTR_ERR(blob); - blob = NULL; - goto fail; - } - - /* Prepare GAMMA_LUT with the legacy values. */ - blob_data = blob->data; - for (i = 0; i < size; i++) { - blob_data[i].red = red[i]; - blob_data[i].green = green[i]; - blob_data[i].blue = blue[i]; - } - - state->acquire_ctx = ctx; - crtc_state = drm_atomic_get_crtc_state(state, crtc); - if (IS_ERR(crtc_state)) { - ret = PTR_ERR(crtc_state); - goto fail; - } - - /* Set GAMMA/DEGAMMA_LUT and reset DEGAMMA/GAMMA_LUT and CTM */ - replaced = drm_property_replace_blob(&crtc_state->degamma_lut, - use_degamma ? blob : NULL); - replaced |= drm_property_replace_blob(&crtc_state->ctm, NULL); - replaced |= drm_property_replace_blob(&crtc_state->gamma_lut, - use_degamma ? NULL : blob); - crtc_state->color_mgmt_changed |= replaced; - - ret = drm_atomic_commit(state); - -fail: - drm_atomic_state_put(state); - drm_property_blob_put(blob); - return ret; -} -EXPORT_SYMBOL(drm_atomic_helper_legacy_gamma_set); - /** * drm_atomic_helper_bridge_propagate_bus_fmt() - Propagate output format to * the input end of a bridge diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c index 956e59d5f6a7..21f667ad9c79 100644 --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -22,6 +22,7 @@ #include +#include #include #include #include @@ -235,6 +236,112 @@ int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); +/** + * drm_crtc_supports_legacy_gamma - does the crtc support legacy gamma correction table + * @crtc: CRTC object + * + * Returns true/false if the given crtc supports setting the legacy gamma + * correction table. + */ +bool drm_crtc_supports_legacy_gamma(struct drm_crtc *crtc) +{ + if (!crtc->gamma_size) + return false; + + if (crtc->funcs->gamma_set) + return true; + + return crtc->has_gamma_prop || crtc->has_degamma_prop; +} +EXPORT_SYMBOL(drm_crtc_supports_legacy_gamma); + +/** + * drm_crtc_legacy_gamma_set - set the legacy gamma correction table + * @crtc: CRTC object + * @red: red correction table + * @green: green correction table + * @blue: green correction table + * @size: size of the tables + * @ctx: lock acquire context + * + * Implements support for legacy gamma correction table for drivers + * that have set drm_crtc_funcs.gamma_set or that support color management + * through the DEGAMMA_LUT/GAMMA_LUT properties. See + * drm_crtc_enable_color_mgmt() and the containing chapter for + * how the atomic color management and gamma tables work. + * + * This function sets the gamma using the first one available: + * - drm_crtc_funcs.gamma_set() + * - GAMMA_LUT + * - DEGAMMA_LUT + */ +int drm_crtc_legacy_gamma_set(struct drm_crtc *crtc, + u16 *red, u16 *green, u16 *blue, + uint32_t size, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_device *dev = crtc->dev; + struct drm_atomic_state *state; + struct drm_crtc_state *crtc_state; + struct drm_property_blob *blob = NULL; + struct drm_color_lut *blob_data; + int i, ret = 0; + bool replaced; + bool use_degamma; + + if (crtc->funcs->gamma_set) + return crtc->funcs->gamma_set(crtc, red, green, blue, size, ctx); + + if (!crtc->has_gamma_prop && !crtc->has_degamma_prop) + return -ENODEV; + + use_degamma = !crtc->has_gamma_prop; + + state = drm_atomic_state_alloc(crtc->dev); + if (!state) + return -ENOMEM; + + blob = drm_property_create_blob(dev, + sizeof(struct drm_color_lut) * size, + NULL); + if (IS_ERR(blob)) { + ret = PTR_ERR(blob); + blob = NULL; + goto fail; + } + + /* Prepare GAMMA_LUT with the legacy values. */ + blob_data = blob->data; + for (i = 0; i < size; i++) { + blob_data[i].red = red[i]; + blob_data[i].green = green[i]; + blob_data[i].blue = blue[i]; + } + + state->acquire_ctx = ctx; + crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(crtc_state)) { + ret = PTR_ERR(crtc_state); + goto fail; + } + + /* Set GAMMA/DEGAMMA_LUT and reset DEGAMMA/GAMMA_LUT and CTM */ + replaced = drm_property_replace_blob(&crtc_state->degamma_lut, + use_degamma ? blob : NULL); + replaced |= drm_property_replace_blob(&crtc_state->ctm, NULL); + replaced |= drm_property_replace_blob(&crtc_state->gamma_lut, + use_degamma ? NULL : blob); + crtc_state->color_mgmt_changed |= replaced; + + ret = drm_atomic_commit(state); + +fail: + drm_atomic_state_put(state); + drm_property_blob_put(blob); + return ret; +} +EXPORT_SYMBOL(drm_crtc_legacy_gamma_set); + /** * drm_mode_gamma_set_ioctl - set the gamma table * @dev: DRM device @@ -266,7 +373,7 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev, if (!crtc) return -ENOENT; - if (crtc->funcs->gamma_set == NULL) + if (!drm_crtc_supports_legacy_gamma(crtc)) return -ENOSYS; /* memcpy into gamma store */ @@ -294,8 +401,8 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev, goto out; } - ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, - crtc->gamma_size, &ctx); + ret = drm_crtc_legacy_gamma_set(crtc, r_base, g_base, b_base, + crtc->gamma_size, &ctx); out: DRM_MODESET_LOCK_ALL_END(dev, ctx, ret); diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 25edf670867c..446e321779e6 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -136,15 +136,15 @@ static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) { uint16_t *r_base, *g_base, *b_base; - if (crtc->funcs->gamma_set == NULL) + if (!drm_crtc_supports_legacy_gamma(crtc)) return; r_base = crtc->gamma_store; g_base = r_base + crtc->gamma_size; b_base = g_base + crtc->gamma_size; - crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, - crtc->gamma_size, NULL); + drm_crtc_legacy_gamma_set(crtc, r_base, g_base, b_base, + crtc->gamma_size, NULL); } /** @@ -907,7 +907,7 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info) drm_modeset_lock_all(fb_helper->dev); drm_client_for_each_modeset(modeset, &fb_helper->client) { crtc = modeset->crtc; - if (!crtc->funcs->gamma_set || !crtc->gamma_size) + if (!drm_crtc_supports_legacy_gamma(crtc)) return -EINVAL; if (cmap->start + cmap->len > crtc->gamma_size) @@ -921,8 +921,8 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info) memcpy(g + cmap->start, cmap->green, cmap->len * sizeof(*g)); memcpy(b + cmap->start, cmap->blue, cmap->len * sizeof(*b)); - ret = crtc->funcs->gamma_set(crtc, r, g, b, - crtc->gamma_size, NULL); + ret = drm_crtc_legacy_gamma_set(crtc, r, g, b, crtc->gamma_size, + NULL); if (ret) return ret; } diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index 368bfef8b340..75f948d41b0a 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -755,8 +755,6 @@ static const struct drm_crtc_funcs ingenic_drm_crtc_funcs = { .enable_vblank = ingenic_drm_enable_vblank, .disable_vblank = ingenic_drm_disable_vblank, - - .gamma_set = drm_atomic_helper_legacy_gamma_set, }; static const struct drm_plane_helper_funcs ingenic_drm_plane_helper_funcs = { diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index bfe994230543..b665bd498a4a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -619,7 +619,6 @@ static const struct drm_crtc_funcs mtk_crtc_funcs = { .reset = mtk_drm_crtc_reset, .atomic_duplicate_state = mtk_drm_crtc_duplicate_state, .atomic_destroy_state = mtk_drm_crtc_destroy_state, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .enable_vblank = mtk_drm_crtc_enable_vblank, .disable_vblank = mtk_drm_crtc_disable_vblank, }; diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c b/drivers/gpu/drm/nouveau/dispnv50/head.c index 537c1ef2e464..ec361d17e900 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/head.c +++ b/drivers/gpu/drm/nouveau/dispnv50/head.c @@ -503,7 +503,6 @@ nv50_head_destroy(struct drm_crtc *crtc) static const struct drm_crtc_funcs nv50_head_func = { .reset = nv50_head_reset, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .destroy = nv50_head_destroy, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, @@ -518,7 +517,6 @@ nv50_head_func = { static const struct drm_crtc_funcs nvd9_head_func = { .reset = nv50_head_reset, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .destroy = nv50_head_destroy, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index 7d66269ad998..b97f21cf4a91 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -741,7 +741,6 @@ static const struct drm_crtc_funcs omap_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .destroy = omap_crtc_destroy, .page_flip = drm_atomic_helper_page_flip, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .atomic_duplicate_state = omap_crtc_duplicate_state, .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, .atomic_set_property = omap_crtc_atomic_set_property, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index b5fb941e0f53..f93e0750431d 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -1144,7 +1144,6 @@ static const struct drm_crtc_funcs crtc_funcs_gen3 = { .set_crc_source = rcar_du_crtc_set_crc_source, .verify_crc_source = rcar_du_crtc_verify_crc_source, .get_crc_sources = rcar_du_crtc_get_crc_sources, - .gamma_set = drm_atomic_helper_legacy_gamma_set, }; /* ----------------------------------------------------------------------------- diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index d1e05482641b..8d15cabdcb02 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1643,7 +1643,6 @@ static const struct drm_crtc_funcs vop_crtc_funcs = { .disable_vblank = vop_crtc_disable_vblank, .set_crc_source = vop_crtc_set_crc_source, .verify_crc_source = vop_crtc_verify_crc_source, - .gamma_set = drm_atomic_helper_legacy_gamma_set, }; static void vop_fb_unref_worker(struct drm_flip_work *work, void *val) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 3980677435cb..7812094f93d6 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -713,7 +713,6 @@ static const struct drm_crtc_funcs ltdc_crtc_funcs = { .enable_vblank = ltdc_crtc_enable_vblank, .disable_vblank = ltdc_crtc_disable_vblank, .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, - .gamma_set = drm_atomic_helper_legacy_gamma_set, }; /* diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index ea710beb8e00..7495d70d6a32 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -884,7 +884,6 @@ static const struct drm_crtc_funcs vc4_crtc_funcs = { .reset = vc4_crtc_reset, .atomic_duplicate_state = vc4_crtc_duplicate_state, .atomic_destroy_state = vc4_crtc_destroy_state, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .enable_vblank = vc4_enable_vblank, .disable_vblank = vc4_disable_vblank, .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, diff --git a/drivers/gpu/drm/vc4/vc4_txp.c b/drivers/gpu/drm/vc4/vc4_txp.c index 8aa5220885f4..e4b782e42f69 100644 --- a/drivers/gpu/drm/vc4/vc4_txp.c +++ b/drivers/gpu/drm/vc4/vc4_txp.c @@ -382,7 +382,6 @@ static const struct drm_crtc_funcs vc4_txp_crtc_funcs = { .reset = vc4_crtc_reset, .atomic_duplicate_state = vc4_crtc_duplicate_state, .atomic_destroy_state = vc4_crtc_destroy_state, - .gamma_set = drm_atomic_helper_legacy_gamma_set, .enable_vblank = vc4_txp_enable_vblank, .disable_vblank = vc4_txp_disable_vblank, }; diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 5f47720440fa..4045e2507e11 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -147,10 +147,6 @@ int drm_atomic_helper_page_flip_target( uint32_t flags, uint32_t target, struct drm_modeset_acquire_ctx *ctx); -int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc, - u16 *red, u16 *green, u16 *blue, - uint32_t size, - struct drm_modeset_acquire_ctx *ctx); /** * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h index 81c298488b0c..a899be9404a0 100644 --- a/include/drm/drm_color_mgmt.h +++ b/include/drm/drm_color_mgmt.h @@ -28,6 +28,7 @@ struct drm_crtc; struct drm_plane; +struct drm_modeset_acquire_ctx; /** * drm_color_lut_extract - clamp and round LUT entries @@ -62,6 +63,12 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, int gamma_size); +bool drm_crtc_supports_legacy_gamma(struct drm_crtc *crtc); +int drm_crtc_legacy_gamma_set(struct drm_crtc *crtc, + u16 *red, u16 *green, u16 *blue, + uint32_t size, + struct drm_modeset_acquire_ctx *ctx); + /** * drm_color_lut_size - calculate the number of entries in the LUT * @blob: blob containing the LUT