From patchwork Wed Dec 18 14:52:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arun R Murthy X-Patchwork-Id: 13913830 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 134A1E77188 for ; Wed, 18 Dec 2024 15:02:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7D97910EBE5; Wed, 18 Dec 2024 15:02:25 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="UgHJvNoH"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5E69510EBE2; Wed, 18 Dec 2024 15:02:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734534144; x=1766070144; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=kHKeJ6+L0SUQ1ATtE293JGNoa0JOxCN8Kpi9nCwIqxo=; b=UgHJvNoHIOPzLe/E4aNsAeNhFtHWmKB570x6kKlaZ9gu0q775bcXPgnZ BvZ40rEddD0diEHQEGgWPohTuHtv7sey/OQfnk+y0JXV/hCStsRiJyBao gi0XUTH5yzebR+tyE3nd+2sXD6bhEJ6te3zev0f0AGHOtqoOG3pLwmdGD hchYXziIUehtFYBTzTROJYeVbJ7aWkxtHtCjdm1qrvEv9lD8jdwqnxhy0 ziRMnuk8BcCJOou5gVN9jeFXo7D+xnQIgpiaY/w4ZmCL9KGSEMPxQfah4 LiZIXW1/3dNKlSL6r0vvJ5l4hJlwxSLpcoF96ySsVZeiYlcyPq16c7Cyi A==; X-CSE-ConnectionGUID: gTfpOZx/S5CfRvo04/RndQ== X-CSE-MsgGUID: 4ZdVWh50QqWkLGbRrfN2vQ== X-IronPort-AV: E=McAfee;i="6700,10204,11290"; a="45502524" X-IronPort-AV: E=Sophos;i="6.12,244,1728975600"; d="scan'208";a="45502524" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Dec 2024 07:02:21 -0800 X-CSE-ConnectionGUID: QGHfKofGTYGwDQmK/Rf2Lw== X-CSE-MsgGUID: Gvg5xT+vTrmg8lRo6Wjb2Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="102025466" Received: from srr4-3-linux-106-armuthy.iind.intel.com ([10.190.238.56]) by fmviesa003.fm.intel.com with ESMTP; 18 Dec 2024 07:02:19 -0800 From: Arun R Murthy Date: Wed, 18 Dec 2024 20:22:06 +0530 Subject: [PATCH v7 3/4] drm/crtc: Expose API to create drm crtc property for histogram MIME-Version: 1.0 Message-Id: <20241218-dpst-v7-3-81bfe7d08c2d@intel.com> References: <20241218-dpst-v7-0-81bfe7d08c2d@intel.com> In-Reply-To: <20241218-dpst-v7-0-81bfe7d08c2d@intel.com> To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, Dmitry Baryshkov Cc: 20240705091333.328322-1-mohammed.thasleem@intel.com, Arun R Murthy X-Mailer: b4 0.15-dev 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add drm-crtc property for histogram and for the properties added add the corresponding get/set_property. Signed-off-by: Arun R Murthy --- drivers/gpu/drm/drm_atomic_state_helper.c | 14 ++++++++ drivers/gpu/drm/drm_atomic_uapi.c | 15 ++++++++ drivers/gpu/drm/drm_crtc.c | 59 +++++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 43 ++++++++++++++++++++++ 4 files changed, 131 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 519228eb109533d2596e899a57b571fa0995824f..dfe6293f7a42d034da3de593094019ca15014a02 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -143,6 +143,12 @@ void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, drm_property_blob_get(state->ctm); if (state->gamma_lut) drm_property_blob_get(state->gamma_lut); + if (state->histogram_caps) + drm_property_blob_get(state->histogram_caps); + if (state->histogram_enable) + drm_property_blob_get(state->histogram_enable); + if (state->histogram_data) + drm_property_blob_get(state->histogram_data); state->mode_changed = false; state->active_changed = false; state->planes_changed = false; @@ -156,6 +162,8 @@ void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, /* Self refresh should be canceled when a new update is available */ state->active = drm_atomic_crtc_effectively_active(state); state->self_refresh_active = false; + + state->histogram_updated = false; } EXPORT_SYMBOL(__drm_atomic_helper_crtc_duplicate_state); @@ -215,6 +223,12 @@ void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc_state *state) drm_property_blob_put(state->degamma_lut); drm_property_blob_put(state->ctm); drm_property_blob_put(state->gamma_lut); + if (state->histogram_caps) + drm_property_blob_put(state->histogram_caps); + if (state->histogram_enable) + drm_property_blob_put(state->histogram_enable); + if (state->histogram_data) + drm_property_blob_put(state->histogram_data); } EXPORT_SYMBOL(__drm_atomic_helper_crtc_destroy_state); diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 370dc676e3aa543c9827b50df20df78f02b738c9..459d30898196c94392a7f916b1fa9ca3a334eea8 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -415,6 +415,15 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc, return -EFAULT; set_out_fence_for_crtc(state->state, crtc, fence_ptr); + } else if (property == crtc->histogram_enable_property) { + ret = drm_property_replace_blob_from_id(dev, + &state->histogram_enable, + val, + -1, + sizeof(struct drm_histogram_config), + &replaced); + state->histogram_updated |= replaced; + return ret; } else if (property == crtc->scaling_filter_property) { state->scaling_filter = val; } else if (crtc->funcs->atomic_set_property) { @@ -452,6 +461,12 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc, *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0; else if (property == config->prop_out_fence_ptr) *val = 0; + else if (property == crtc->histogram_caps_property) + *val = (state->histogram_caps) ? state->histogram_caps->base.id : 0; + else if (property == crtc->histogram_enable_property) + *val = (state->histogram_enable) ? state->histogram_enable->base.id : 0; + else if (property == crtc->histogram_data_property) + *val = (state->histogram_data) ? state->histogram_data->base.id : 0; else if (property == crtc->scaling_filter_property) *val = state->scaling_filter; else if (crtc->funcs->atomic_get_property) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 3488ff067c69bb820b36177c97bc9fe5d5cbfea1..1c91cce3dcd31ede1e9d771af00c7c4414000a2b 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -939,3 +939,62 @@ int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, return 0; } EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property); + +/** + * drm_crtc_create_histogram_property: create histogram properties + * + * @crtc: pointer to the struct drm_crtc. + * + * The property HISTOGRAM_CAPS exposes the hardware capability for + * histogram which includes the histogram mode, number of bins etc + * The property HISTOGRAM_ENABLE allows user to enable/disable the + * histogram feature and also configure the hardware. + * Upon KMD enabling by writing to the hardware registers, histogram + * is generated. Histogram is composed of 'n' bins with each bin + * being an integer(pixel count). + * An event HISTOGRAM will be sent to the user. User upon receiving this + * event can read the hardware generated histogram using crtc property + * HISTOGRAM_DATA. + * User can use this histogram data to enhance the image or in shaders. + * + * Property HISTOGRAM_CAPS is a blob pointing to the struct drm_histogram_caps + * Description of the structure is in include/uapi/drm/drm_mode.h + * Property HISTOGRAM_ENABLE is a blob pointing to the struct + * drm_histogram_config + * Description of the structure is in include/uapi/drm/drm_mode.h + * Property HISTOGRAM_DATA is a blob pointing to the struct drm_histogram + * Description of the structure is in include/uapi/drm/drm_mode.h + * + * RETURNS: + * Zero for success or -errno + */ +int drm_crtc_create_histogram_property(struct drm_crtc *crtc) +{ + struct drm_property *prop; + + prop = drm_property_create(crtc->dev, DRM_MODE_PROP_ATOMIC | + DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB, + "HISTOGRAM_CAPS", 0); + if (!prop) + return -ENOMEM; + drm_object_attach_property(&crtc->base, prop, 0); + crtc->histogram_caps_property = prop; + + prop = drm_property_create(crtc->dev, DRM_MODE_PROP_ATOMIC | + DRM_MODE_PROP_BLOB, "HISTOGRAM_ENABLE", 0); + if (!prop) + return -ENOMEM; + drm_object_attach_property(&crtc->base, prop, 0); + crtc->histogram_enable_property = prop; + + prop = drm_property_create(crtc->dev, DRM_MODE_PROP_ATOMIC | + DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB, + "HISTOGRAM_DATA", 0); + if (!prop) + return -ENOMEM; + drm_object_attach_property(&crtc->base, prop, 0); + crtc->histogram_data_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_crtc_create_histogram_property); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 8b48a1974da3143c7de176e6fe3e01da9c8fc9d8..934cac2adb9889d2477e9601598796927bc016ea 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -274,6 +274,32 @@ struct drm_crtc_state { */ struct drm_property_blob *gamma_lut; + /** + * @histogram_caps: + * + * The blob points to the structure drm_histogram_caps. + * For more info on the elements of the struct drm_histogram_caps + * see include/uapi/drm/drm_mode.h + */ + struct drm_property_blob *histogram_caps; + /** + * @histogram_enable: + * + * The blob points to the structure drm_histogram_config. + * For more information on the elements of struct drm_histogram_config + * see include/uapi/drm/drm_mode.h + */ + struct drm_property_blob *histogram_enable; + /** + * @histogram_data: + * + * The blob points to the structure drm_histogram. + * For more information on the elements of struct drm_histogram + * see include/uapi/drm/drm_mode.h + */ + struct drm_property_blob *histogram_data; + bool histogram_updated; + /** * @target_vblank: * @@ -1088,6 +1114,22 @@ struct drm_crtc { */ struct drm_property *scaling_filter_property; + /** + * @histogram_caps_property: Optional CRTC property for getting the + * histogram hardware capability. + */ + struct drm_property *histogram_caps_property; + /** + * @histogram_enable_property: Optional CRTC property for enabling or + * disabling global histogram. + */ + struct drm_property *histogram_enable_property; + /** + * @histogram_data_proeprty: Optional CRTC property for getting the + * histogram blob data. + */ + struct drm_property *histogram_data_property; + /** * @state: * @@ -1323,5 +1365,6 @@ static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, unsigned int supported_filters); +int drm_crtc_create_histogram_property(struct drm_crtc *crtc); #endif /* __DRM_CRTC_H__ */