From patchwork Sat May 25 23:29:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674162 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 707D9C25B7A for ; Sat, 25 May 2024 23:30:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5VmR6jlRXpOCtlALHy2T0+cuGx0Qi/VITbN/ISJH/Ng=; b=eCGCXoXqixRrpWlwQm1Fg38aiB Voxj6AZjep8imMqlfG6Hv/C7XQxg4qywzM7uSFqsP+SLgH/S6gP9+GEgZsVwN40u0PFdNsdc6k+g9 NyxhYc3W1Hlybv63ZL98QSYoyvjwC21/b2Bv63/XaD7VeiMB+tXMSwQ8wHOk9BZ176sd/Oh8tL30L Bw2CAXh0dQrFaJCItA/B/W4WNWsnbM54OVz6ivqmdrsBaxNypcWDrpNac1T1H2nt7Dr3/mnKZAh1X MsSe0LGarhlnLXU0it4807kvYlvOK4b/bbX8YAU4Ta3Vg3f9kDAc9vZggwAJG/IYgfBRk55YVOqaL qoqixD9w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sB0qT-0000000BsvB-2uPO; Sat, 25 May 2024 23:30:37 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sB0pY-0000000BsI9-117l; Sat, 25 May 2024 23:29:44 +0000 X-UUID: a4535bda1aee11ef82c84f6416ccf2f3-20240525 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=5VmR6jlRXpOCtlALHy2T0+cuGx0Qi/VITbN/ISJH/Ng=; b=dhTGVw77+tcBk+o3ayDHj9mNMDfUHb2Of7v2rmAv9QaE0xBJWh5a6po1+pXPmOmGHKAXlRF5Vnswmq7BZn7XmgXyenTAkLfK2lIv/ugVxZTElBVkkBfGGmxDiKhk6f5a8vh+JT9HdDxykfSBX2jrUrvNtPS/DrhMPiQ3EeWyWsI=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.38,REQID:0a5a28a9-7732-49f0-a548-294344a56164,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:82c5f88,CLOUDID:e360cd43-4544-4d06-b2b2-d7e12813c598,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES :1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_ULN,TF_CID_SPAM_SNR X-UUID: a4535bda1aee11ef82c84f6416ccf2f3-20240525 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1518545843; Sat, 25 May 2024 16:29:33 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by MTKMBS09N1.mediatek.inc (172.21.101.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sun, 26 May 2024 07:29:30 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sun, 26 May 2024 07:29:30 +0800 From: Jason-JH.Lin To: Chun-Kuang Hu , AngeloGioacchino Del Regno , Maxime Ripard CC: David Airlie , Daniel Vetter , Matthias Brugger , , , , , , , , Jason-ch Chen , "Jason-JH . Lin" , Singo Chang , Nancy Lin , Shawn Sung , , Jeffrey Kardatzke , CK Hu , Hsiao Chien Sung Subject: [PATCH v6 1/7] drm/mediatek: Add interface to allocate MediaTek GEM buffer Date: Sun, 26 May 2024 07:29:22 +0800 Message-ID: <20240525232928.5524-2-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162940_402095_5222E71E X-CRM114-Status: GOOD ( 26.76 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: CK Hu Add an interface to allocate MediaTek GEM buffers, allow the IOCTLs to be used by render nodes. This patch also sets the RENDER driver feature. TODO: Drop this path after we change all the usages of this ioctl to DMA_HEAP_IOCTL_ALLOC in the user sapce. Signed-off-by: CK Hu Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 13 +++++++- drivers/gpu/drm/mediatek/mtk_gem.c | 31 +++++++++++++++++ drivers/gpu/drm/mediatek/mtk_gem.h | 8 +++++ include/uapi/drm/mediatek_drm.h | 46 ++++++++++++++++++++++++++ 4 files changed, 97 insertions(+), 1 deletion(-) create mode 100644 include/uapi/drm/mediatek_drm.h diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index b5f605751b0a..11e1555e9aa4 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "mtk_crtc.h" #include "mtk_ddp_comp.h" @@ -570,6 +571,11 @@ static void mtk_drm_kms_deinit(struct drm_device *drm) component_unbind_all(drm->dev, drm); } +static const struct drm_ioctl_desc mtk_ioctls[] = { + DRM_IOCTL_DEF_DRV(MTK_GEM_CREATE, mtk_gem_create_ioctl, + DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW), +}; + DEFINE_DRM_GEM_FOPS(mtk_drm_fops); /* @@ -585,12 +591,17 @@ static struct drm_gem_object *mtk_gem_prime_import(struct drm_device *dev, } static const struct drm_driver mtk_drm_driver = { - .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC, + .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC | + DRIVER_RENDER, .dumb_create = mtk_gem_dumb_create, .gem_prime_import = mtk_gem_prime_import, .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table, + + .ioctls = mtk_ioctls, + .num_ioctls = ARRAY_SIZE(mtk_ioctls), + .fops = &mtk_drm_fops, .name = DRIVER_NAME, diff --git a/drivers/gpu/drm/mediatek/mtk_gem.c b/drivers/gpu/drm/mediatek/mtk_gem.c index a172456d1d7b..91f6cfa3f1b7 100644 --- a/drivers/gpu/drm/mediatek/mtk_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_gem.c @@ -5,9 +5,11 @@ #include #include +#include #include #include +#include #include #include #include @@ -286,3 +288,32 @@ void mtk_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map) mtk_gem->kvaddr = NULL; kfree(mtk_gem->pages); } + +int mtk_gem_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct mtk_gem_obj *mtk_gem; + struct drm_mtk_gem_create *args = data; + int ret; + + mtk_gem = mtk_gem_create(dev, args->size, false); + if (IS_ERR(mtk_gem)) + return PTR_ERR(mtk_gem); + + /* + * allocate a id of idr table where the obj is registered + * and handle has the id what user can see. + */ + ret = drm_gem_handle_create(file_priv, &mtk_gem->base, &args->handle); + if (ret) + goto err_handle_create; + + /* drop reference from allocate - handle holds it now. */ + drm_gem_object_put(&mtk_gem->base); + + return 0; + +err_handle_create: + mtk_gem_free_object(&mtk_gem->base); + return ret; +} diff --git a/drivers/gpu/drm/mediatek/mtk_gem.h b/drivers/gpu/drm/mediatek/mtk_gem.h index 66e5f154f698..b71a7e7b405a 100644 --- a/drivers/gpu/drm/mediatek/mtk_gem.h +++ b/drivers/gpu/drm/mediatek/mtk_gem.h @@ -45,4 +45,12 @@ struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, int mtk_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map); void mtk_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map); +/* + * request gem object creation and buffer allocation as the size + * that it is calculated with framebuffer information such as width, + * height and bpp. + */ +int mtk_gem_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + #endif diff --git a/include/uapi/drm/mediatek_drm.h b/include/uapi/drm/mediatek_drm.h new file mode 100644 index 000000000000..821f7a732365 --- /dev/null +++ b/include/uapi/drm/mediatek_drm.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ +/* + * Copyright (c) 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _UAPI_MEDIATEK_DRM_H +#define _UAPI_MEDIATEK_DRM_H + +#include + +#ifdef __KERNEL__ +#include +#else +#include +#endif + +/** + * User-desired buffer creation information structure. + * + * @size: user-desired memory allocation size. + * - this size value would be page-aligned internally. + * @flags: user request for setting memory type or cache attributes. + * @handle: returned a handle to created gem object. + * - this handle will be set by gem module of kernel side. + */ +struct drm_mtk_gem_create { + uint64_t size; + uint32_t flags; + uint32_t handle; +}; + +#define DRM_MTK_GEM_CREATE 0x00 + +#define DRM_IOCTL_MTK_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_MTK_GEM_CREATE, struct drm_mtk_gem_create) + +#endif /* _UAPI_MEDIATEK_DRM_H */ From patchwork Sat May 25 23:29:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674156 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4261DC25B7A for ; Sat, 25 May 2024 23:29:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Ghl4812jy8HwrSLiq70hh/QyXRXCMbWlE+MarM4cPko=; b=1rdJcHx3Vc+1/etM8nRCNtfvuJ WNNJDHJCn5KZkwid0zpZlsKsdxwEkNbqujoTJjIs5SPWL5LUGhvRlINP6bYRBLEVPEdHRzVs6VtzL CWzmrg7WbRjPifxuDBAanbrSFd3Cve6Y7LQ9KBDT1UHS0mZ4McCB3PIMTfdeoqqqisEVtw5lcUtYi KbSqbqZj/e84dYHX2QCeRQPdDni3sNnRSJ3L6dQnJIX9mDwbGCkqf5jIBkHuoQ3mUs1B3UOSoizlw tEr0DX3s6ujbixWsIGq1BJF1cuBEMiqwRknuJswWI7M6rhOunVPCHBGuKmC/fdc6anjdwGEoQ4//1 Gxsay2bg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sB0pb-0000000BsKA-2GHE; Sat, 25 May 2024 23:29:43 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sB0pX-0000000BsHL-37re; Sat, 25 May 2024 23:29:41 +0000 X-UUID: a50c8dd01aee11efbf6c7d4f5c147266-20240525 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=Ghl4812jy8HwrSLiq70hh/QyXRXCMbWlE+MarM4cPko=; b=Gk9MlwbHbwctk0WFBkrD5ufKpxrnMS2iEtWN3a+y2Ly2LrX2bzHoVnDvzGHBc+ckUBVY0+MzPpaghIQ7rGwcE+8Jh1obU6OR0L1t+3+V/IIMPYUHj6sksMLzgrRAs6eyCv4Q3ezfsCrSmscEnHG6OkRtdK58AKz4RLRZ1zDSeJ8=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.38,REQID:51b1efe1-91c4-4c07-b81d-7a0d55bb3d76,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:82c5f88,CLOUDID:ec60cd43-4544-4d06-b2b2-d7e12813c598,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1, SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: a50c8dd01aee11efbf6c7d4f5c147266-20240525 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2820551; Sat, 25 May 2024 16:29:34 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sun, 26 May 2024 07:29:30 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sun, 26 May 2024 07:29:30 +0800 From: Jason-JH.Lin To: Chun-Kuang Hu , AngeloGioacchino Del Regno , Maxime Ripard CC: David Airlie , Daniel Vetter , Matthias Brugger , , , , , , , , "Jason-ch Chen" , "Jason-JH . Lin" , Singo Chang , "Nancy Lin" , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v6 2/7] drm/mediatek/uapi: Add DRM_MTK_GEM_CREATE_RESTRICTED flag Date: Sun, 26 May 2024 07:29:23 +0800 Message-ID: <20240525232928.5524-3-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--5.287700-8.000000 X-TMASE-MatchedRID: k8Cd32tj8sGXFGyE5q3nYES2B/NHMxrXkKAa/khZ3iRh2fnHe1cil77q f3d2iYd43gb7k6xpVN542tqdrtX3rGJZXQNDzktSQML2WBMvCAV4l6XHn8eFlpsoi2XrUn/Js98 n9dYnJNNQSFbL1bvQAXnN0DN7HnFmkWv6xhiUH0B/UAdIHSqqoTg+CnHW/UZudrv9PcU+4TLk0B aI3H9oyJRMZUCEHkRt X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--5.287700-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 060B792F319A29816E6FCAB6845D0B61DAB22940F3E07BFB7915C1D9116996D72000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162939_828083_A99C966C X-CRM114-Status: GOOD ( 10.63 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add DRM_MTK_GEM_CREATE_RESTRICTED flag for the user space to tell the kernel space this dma buffer is restricted. The user space can store this flag into the private data of the dma buffer after allocating. A restricted buffer is used to store the secure video content to support secure video path feature. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- include/uapi/drm/mediatek_drm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/uapi/drm/mediatek_drm.h b/include/uapi/drm/mediatek_drm.h index 821f7a732365..dee581718d70 100644 --- a/include/uapi/drm/mediatek_drm.h +++ b/include/uapi/drm/mediatek_drm.h @@ -39,6 +39,7 @@ struct drm_mtk_gem_create { }; #define DRM_MTK_GEM_CREATE 0x00 +#define DRM_MTK_GEM_CREATE_RESTRICTED 0x01 #define DRM_IOCTL_MTK_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ DRM_MTK_GEM_CREATE, struct drm_mtk_gem_create) From patchwork Sat May 25 23:29:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674155 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C91C7C25B7D for ; Sat, 25 May 2024 23:29:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=FIgc95P0LFsWq8dY96d3Fluun5dhhpnGnJPt14WABDE=; b=G51/4hhIvdu5k8uyTtwU4b+PFQ w2J+02TdYZl55i6ClGd0Eb0mdxiE3Tumcj/JPkl8CpQeFydPj2VdJrrX1SZ3IVTvCNxrJzND0963V HAiOHrjZlGPIjX2+6e8TEKtim8oo5jna2Rxf/RtULuHrFov+WVYXazU1WzlTrcRYu9VKV6DS7r4Pk krEBj1r+zHT0bzR2OShU53ua6O26QiZpIWEP6tw9cIGTQ92RG4CP9EtGNINEqWYeH2WgL8ARDM/vd l2L8RQO2DMZD1EsuGpwNTzkKQ/ZQNxVWVi+q53keqo0KxIH42B/2II9hNaimicj6j8ogB9ay8Qsc5 15EaM33Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sB0pa-0000000BsJh-2QBm; Sat, 25 May 2024 23:29:42 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sB0pX-0000000BsHE-37sH; Sat, 25 May 2024 23:29:41 +0000 X-UUID: a49ffa441aee11efbf6c7d4f5c147266-20240525 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=FIgc95P0LFsWq8dY96d3Fluun5dhhpnGnJPt14WABDE=; b=K/Rt7iQG/x0ebGbWglX7+vV0EXEbqBCoYHjpRc8kNqMoa9CyZNoSnyu3VQECKWEhhNg37AoY1ZdDNC7Kc/9E6THiNq2UUEvCzeS1tfcMxA0H7sKKHoz8H24WpD6+Pk7krHDPOR2wgVD+PDHbWIoHMUFNhWXogc37cj01fHrmRjk=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.38,REQID:e5fb6f91-e43a-42a2-baf9-5a6d17ec895d,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:82c5f88,CLOUDID:dd60cd43-4544-4d06-b2b2-d7e12813c598,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1, SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: a49ffa441aee11efbf6c7d4f5c147266-20240525 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 994311909; Sat, 25 May 2024 16:29:33 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sun, 26 May 2024 07:29:30 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sun, 26 May 2024 07:29:30 +0800 From: Jason-JH.Lin To: Chun-Kuang Hu , AngeloGioacchino Del Regno , Maxime Ripard CC: David Airlie , Daniel Vetter , Matthias Brugger , , , , , , , , "Jason-ch Chen" , "Jason-JH . Lin" , Singo Chang , "Nancy Lin" , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v6 3/7] drm/mediatek: Add secure buffer control flow to mtk_drm_gem Date: Sun, 26 May 2024 07:29:24 +0800 Message-ID: <20240525232928.5524-4-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--8.374900-8.000000 X-TMASE-MatchedRID: ZCn+RolpoOMXSulpnju2HwNJ3EDwuUClKx5ICGp/WtFLgo8+IIHbcFFS bftPdDEZoeiq4rYt7pKGxGUv98m662cxJsW2zGmLwCZxkTHxcckRKRMYqsuVUKw26SKPp7rTBgH mCxujQvwZB0R4cFpbTeKOmN63egZIkKjL2IOi2LAVglQa/gMvfF7OZ6hrwwnzRi9INZ1ZpGG8l4 J1PwHfQtaU6+nmai7Rg76TUEbY/o+jgTsRPYZdS47Su3QulAZ5/Hd4CUWIS/HOMdbgLsryf83+w mITvMn44vM1YF6AJbZ/Q8GCVf1zYgtuKBGekqUpI/NGWt0UYPDg2HVhKpGjzSemQbospQn1i4m8 Ius6insfCKYorH/qEFrVflnGTvH9 X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--8.374900-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 0135431C2B218892C2ADBEB833FCB3971EB1EC60AA0E18E66BC1269587605A012000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162939_828081_FE7B9779 X-CRM114-Status: GOOD ( 17.73 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add secure buffer control flow to mtk_drm_gem. When user space takes DRM_MTK_GEM_CREATE_RESTRICTED flag and size to create a mtk_drm_gem object, mtk_drm_gem will find a matched size dma buffer from secure dma-heap and bind it to mtk_drm_gem object. TODO: 1. Drop the mtk_gem_create_from_heap() after we change the ioctl to DMA_HEAP_IOCTL_ALLOC. 2. Checking the private data of dmabuf instead of strncmp the exp_name. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 +- drivers/gpu/drm/mediatek/mtk_gem.c | 85 +++++++++++++++++++++++++- drivers/gpu/drm/mediatek/mtk_gem.h | 4 ++ 3 files changed, 89 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 11e1555e9aa4..ff40ca5dd2a0 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -573,7 +573,7 @@ static void mtk_drm_kms_deinit(struct drm_device *drm) static const struct drm_ioctl_desc mtk_ioctls[] = { DRM_IOCTL_DEF_DRV(MTK_GEM_CREATE, mtk_gem_create_ioctl, - DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW), + DRM_AUTH | DRM_RENDER_ALLOW), }; DEFINE_DRM_GEM_FOPS(mtk_drm_fops); diff --git a/drivers/gpu/drm/mediatek/mtk_gem.c b/drivers/gpu/drm/mediatek/mtk_gem.c index 91f6cfa3f1b7..118ea7f0a71c 100644 --- a/drivers/gpu/drm/mediatek/mtk_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_gem.c @@ -5,6 +5,8 @@ #include #include +#include +#include #include #include @@ -103,6 +105,81 @@ struct mtk_gem_obj *mtk_gem_create(struct drm_device *dev, return ERR_PTR(ret); } +struct mtk_gem_obj *mtk_gem_create_from_heap(struct drm_device *dev, + const char *heap, size_t size) +{ + struct mtk_drm_private *priv = dev->dev_private; + struct mtk_gem_obj *mtk_gem; + struct drm_gem_object *obj; + struct dma_heap *dma_heap; + struct dma_buf *dma_buf; + struct dma_buf_attachment *attach; + struct sg_table *sgt; + struct iosys_map map = {}; + int ret; + + mtk_gem = mtk_gem_init(dev, size); + if (IS_ERR(mtk_gem)) + return ERR_CAST(mtk_gem); + + obj = &mtk_gem->base; + + dma_heap = dma_heap_find(heap); + if (!dma_heap) { + DRM_ERROR("heap find fail\n"); + goto err_gem_free; + } + dma_buf = dma_heap_buffer_alloc(dma_heap, size, + O_RDWR | O_CLOEXEC, DMA_HEAP_VALID_HEAP_FLAGS); + if (IS_ERR(dma_buf)) { + DRM_ERROR("buffer alloc fail\n"); + dma_heap_put(dma_heap); + goto err_gem_free; + } + dma_heap_put(dma_heap); + + attach = dma_buf_attach(dma_buf, priv->dma_dev); + if (IS_ERR(attach)) { + DRM_ERROR("attach fail, return\n"); + dma_buf_put(dma_buf); + goto err_gem_free; + } + + sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL); + if (IS_ERR(sgt)) { + DRM_ERROR("map failed, detach and return\n"); + dma_buf_detach(dma_buf, attach); + dma_buf_put(dma_buf); + goto err_gem_free; + } + obj->import_attach = attach; + mtk_gem->dma_addr = sg_dma_address(sgt->sgl); + mtk_gem->sg = sgt; + mtk_gem->size = dma_buf->size; + + if (!strcmp(heap, "restricted_mtk_cm") || !strcmp(heap, "restricted_mtk_cma")) { + /* secure buffer can not be mapped */ + mtk_gem->secure = true; + } else { + ret = dma_buf_vmap(dma_buf, &map); + mtk_gem->kvaddr = map.vaddr; + if (ret) { + DRM_ERROR("map failed, ret=%d\n", ret); + dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL); + dma_buf_detach(dma_buf, attach); + dma_buf_put(dma_buf); + mtk_gem->kvaddr = NULL; + } + } + + return mtk_gem; + +err_gem_free: + drm_gem_object_release(obj); + kfree(mtk_gem); + return ERR_PTR(-ENOMEM); +} + void mtk_gem_free_object(struct drm_gem_object *obj) { struct mtk_gem_obj *mtk_gem = to_mtk_gem_obj(obj); @@ -230,7 +307,9 @@ struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, if (IS_ERR(mtk_gem)) return ERR_CAST(mtk_gem); + mtk_gem->secure = (!strncmp(attach->dmabuf->exp_name, "restricted", 10)); mtk_gem->dma_addr = sg_dma_address(sg->sgl); + mtk_gem->size = attach->dmabuf->size; mtk_gem->sg = sg; return &mtk_gem->base; @@ -296,7 +375,11 @@ int mtk_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_mtk_gem_create *args = data; int ret; - mtk_gem = mtk_gem_create(dev, args->size, false); + if (args->flags & DRM_MTK_GEM_CREATE_RESTRICTED) + mtk_gem = mtk_gem_create_from_heap(dev, "restricted_mtk_cma", args->size); + else + mtk_gem = mtk_gem_create(dev, args->size, false); + if (IS_ERR(mtk_gem)) return PTR_ERR(mtk_gem); diff --git a/drivers/gpu/drm/mediatek/mtk_gem.h b/drivers/gpu/drm/mediatek/mtk_gem.h index b71a7e7b405a..7f6b23b9875a 100644 --- a/drivers/gpu/drm/mediatek/mtk_gem.h +++ b/drivers/gpu/drm/mediatek/mtk_gem.h @@ -27,9 +27,11 @@ struct mtk_gem_obj { void *cookie; void *kvaddr; dma_addr_t dma_addr; + size_t size; unsigned long dma_attrs; struct sg_table *sg; struct page **pages; + bool secure; }; #define to_mtk_gem_obj(x) container_of(x, struct mtk_gem_obj, base) @@ -37,6 +39,8 @@ struct mtk_gem_obj { void mtk_gem_free_object(struct drm_gem_object *gem); struct mtk_gem_obj *mtk_gem_create(struct drm_device *dev, size_t size, bool alloc_kmap); +struct mtk_gem_obj *mtk_gem_create_from_heap(struct drm_device *dev, + const char *heap, size_t size); int mtk_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj); From patchwork Sat May 25 23:29:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674160 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E0F51C25B78 for ; 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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v6 4/7] drm/mediatek: Add secure identify flag and funcution to mtk_drm_plane Date: Sun, 26 May 2024 07:29:25 +0800 Message-ID: <20240525232928.5524-5-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162940_420098_A3BDF806 X-CRM114-Status: GOOD ( 11.28 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add is_sec flag to identify current mtk_drm_plane is secure. Add mtk_plane_is_sec_fb() to check current drm_framebuffer is secure. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_plane.c | 18 ++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_plane.h | 2 ++ 2 files changed, 20 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediatek/mtk_plane.c index 4625deb21d40..478206f21fd0 100644 --- a/drivers/gpu/drm/mediatek/mtk_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_plane.c @@ -210,6 +210,7 @@ static void mtk_plane_update_new_state(struct drm_plane_state *new_state, mtk_plane_state->pending.height = drm_rect_height(&new_state->dst); mtk_plane_state->pending.rotation = new_state->rotation; mtk_plane_state->pending.color_encoding = new_state->color_encoding; + mtk_plane_state->pending.is_secure = mtk_plane_fb_is_secure(fb); } static void mtk_plane_atomic_async_update(struct drm_plane *plane, @@ -348,3 +349,20 @@ int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, return 0; } + +bool mtk_plane_fb_is_secure(struct drm_framebuffer *fb) +{ + struct drm_gem_object *gem = NULL; + struct mtk_gem_obj *mtk_gem = NULL; + + if (!fb) + return false; + + gem = fb->obj[0]; + if (!gem) + return false; + + mtk_gem = to_mtk_gem_obj(gem); + + return mtk_gem->secure; +} diff --git a/drivers/gpu/drm/mediatek/mtk_plane.h b/drivers/gpu/drm/mediatek/mtk_plane.h index 231bb7aac947..a7779a91f0a2 100644 --- a/drivers/gpu/drm/mediatek/mtk_plane.h +++ b/drivers/gpu/drm/mediatek/mtk_plane.h @@ -33,6 +33,7 @@ struct mtk_plane_pending_state { bool async_dirty; bool async_config; enum drm_color_encoding color_encoding; + bool is_secure; }; struct mtk_plane_state { @@ -46,6 +47,7 @@ to_mtk_plane_state(struct drm_plane_state *state) return container_of(state, struct mtk_plane_state, base); } +bool mtk_plane_fb_is_secure(struct drm_framebuffer *fb); int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, enum drm_plane_type type, unsigned int supported_rotations, const u32 *formats, From patchwork Sat May 25 23:29:26 2024 Content-Type: text/plain; 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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v6 5/7] drm/mediatek: Add mtk_ddp_sec_write() to config secure buffer info Date: Sun, 26 May 2024 07:29:26 +0800 Message-ID: <20240525232928.5524-6-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162940_407907_5F7691E1 X-CRM114-Status: GOOD ( 16.38 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add mtk_ddp_sec_write() to configure secure buffer information to cmdq secure packet data and send to the secure world. OVL and OVL_ADAPTOR need to use mtk_ddp_sec_write() instead of original mtk_ddp_write() because the address in plane is secure handle not the real buffer address. The secure buffer information will be used to translate the secure handle to the curresponding secure buffer address and then the secure handle in instruction generated by OVL or OVL_ADPATOR will be replaced to the real address in secure world. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ddp_comp.c | 14 ++++++++++++++ drivers/gpu/drm/mediatek/mtk_ddp_comp.h | 5 +++++ drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 9 +++++++-- drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 1 + drivers/gpu/drm/mediatek/mtk_mdp_rdma.c | 8 ++++++-- drivers/gpu/drm/mediatek/mtk_mdp_rdma.h | 1 + 6 files changed, 34 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c index 17b036411292..dc2b36a8bdd6 100644 --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c @@ -111,6 +111,20 @@ void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value, #endif } +void mtk_ddp_sec_write(struct cmdq_pkt *cmdq_pkt, + enum cmdq_iwc_addr_metadata_type type, + unsigned int base, unsigned int base_offset, + struct cmdq_client_reg *cmdq_reg, unsigned int offset) +{ +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + if (!cmdq_pkt) + return; + + cmdq_sec_pkt_write(cmdq_pkt, cmdq_reg->subsys, cmdq_reg->offset + offset, + type, base, base_offset); +#endif +} + static int mtk_ddp_clk_enable(struct device *dev) { struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h index 26236691ce4c..792fd1b004ee 100644 --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h @@ -7,6 +7,7 @@ #define MTK_DDP_COMP_H #include +#include #include #include #include @@ -339,4 +340,8 @@ void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value, void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value, struct cmdq_client_reg *cmdq_reg, void __iomem *regs, unsigned int offset, unsigned int mask); +void mtk_ddp_sec_write(struct cmdq_pkt *cmdq_pkt, + enum cmdq_iwc_addr_metadata_type type, + unsigned int base, unsigned int base_offset, + struct cmdq_client_reg *cmdq_reg, unsigned int offset); #endif /* MTK_DDP_COMP_H */ diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index b552a02d7eae..5f518c9c63dc 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -449,8 +449,13 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx, DISP_REG_OVL_SRC_SIZE(idx)); mtk_ddp_write_relaxed(cmdq_pkt, offset, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_OFFSET(idx)); - mtk_ddp_write_relaxed(cmdq_pkt, addr, &ovl->cmdq_reg, ovl->regs, - DISP_REG_OVL_ADDR(ovl, idx)); + + if (pending->is_secure) + mtk_ddp_sec_write(cmdq_pkt, CMDQ_IWC_H_2_MVA, pending->addr, 0, + &ovl->cmdq_reg, DISP_REG_OVL_ADDR(ovl, idx)); + else + mtk_ddp_write_relaxed(cmdq_pkt, addr, &ovl->cmdq_reg, ovl->regs, + DISP_REG_OVL_ADDR(ovl, idx)); if (is_afbc) { mtk_ddp_write_relaxed(cmdq_pkt, hdr_addr, &ovl->cmdq_reg, ovl->regs, diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c index 02dd7dcdfedb..5db8711f21c2 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c @@ -188,6 +188,7 @@ void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx, rdma_config.pitch = pending->pitch; rdma_config.fmt = pending->format; rdma_config.color_encoding = pending->color_encoding; + rdma_config.is_secure = state->pending.is_secure; mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt); if (use_dual_pipe) { diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c index 925cbb7471ec..961189e16aab 100644 --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c @@ -199,8 +199,12 @@ void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg, mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs, MDP_RDMA_SRC_CON, FLD_OUTPUT_ARGB); - mtk_ddp_write_mask(cmdq_pkt, cfg->addr0, &priv->cmdq_reg, priv->regs, - MDP_RDMA_SRC_BASE_0, FLD_SRC_BASE_0); + if (cfg->is_secure) + mtk_ddp_sec_write(cmdq_pkt, CMDQ_IWC_H_2_MVA, cfg->addr0, 0, + &priv->cmdq_reg, MDP_RDMA_SRC_BASE_0); + else + mtk_ddp_write_mask(cmdq_pkt, cfg->addr0, &priv->cmdq_reg, priv->regs, + MDP_RDMA_SRC_BASE_0, FLD_SRC_BASE_0); mtk_ddp_write_mask(cmdq_pkt, src_pitch_y, &priv->cmdq_reg, priv->regs, MDP_RDMA_MF_BKGD_SIZE_IN_BYTE, FLD_MF_BKGD_WB); diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h index 9943ee3aac31..fcd9b3a934d0 100644 --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h @@ -15,6 +15,7 @@ struct mtk_mdp_rdma_cfg { unsigned int y_top; int fmt; int color_encoding; + bool is_secure; }; #endif // __MTK_MDP_RDMA_H__ From patchwork Sat May 25 23:29:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674161 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 772B0C25B7D for ; Sat, 25 May 2024 23:30:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; 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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v6 6/7] drm/mediatek: Add secure flow support to mediatek-drm Date: Sun, 26 May 2024 07:29:27 +0800 Message-ID: <20240525232928.5524-7-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162939_830472_9FCD97C2 X-CRM114-Status: GOOD ( 24.55 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org To add secure flow support for mediatek-drm, each crtc have to create a secure cmdq mailbox channel. Then cmdq packets with display HW configuration will be sent to secure cmdq mailbox channel and configured in the secure world. Each crtc have to use secure cmdq interface to configure some secure settings for display HW before sending cmdq packets to secure cmdq mailbox channel. If any of plane fbs get from current drm_atomic_state is secure, then crtc will switch to the secure flow to configure display HW. If all plane fbs are not secure in current drm_atomic_state, then crtc will switch to the normal flow. TODO: 1. Try to use secure mailbox channel to handle normal and secure flow. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_crtc.c | 260 +++++++++++++++++++++++++-- drivers/gpu/drm/mediatek/mtk_crtc.h | 1 + drivers/gpu/drm/mediatek/mtk_plane.c | 7 + 3 files changed, 258 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_crtc.c b/drivers/gpu/drm/mediatek/mtk_crtc.c index 6f34f573e127..59f6263ae806 100644 --- a/drivers/gpu/drm/mediatek/mtk_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_crtc.c @@ -56,6 +56,11 @@ struct mtk_crtc { u32 cmdq_event; u32 cmdq_vblank_cnt; wait_queue_head_t cb_blocking_queue; + + struct cmdq_client sec_cmdq_client; + struct cmdq_pkt sec_cmdq_handle; + bool sec_cmdq_working; + wait_queue_head_t sec_cb_blocking_queue; #endif struct device *mmsys_dev; @@ -69,6 +74,7 @@ struct mtk_crtc { /* lock for display hardware access */ struct mutex hw_lock; bool config_updating; + bool sec_on; }; struct mtk_crtc_state { @@ -113,6 +119,144 @@ static void mtk_drm_finish_page_flip(struct mtk_crtc *mtk_crtc) } } +void mtk_crtc_disable_secure_state(struct drm_crtc *crtc) +{ +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + enum cmdq_sec_scenario sec_scn = CMDQ_SEC_SCNR_MAX; + int i; + struct mtk_ddp_comp *ddp_first_comp; + struct mtk_crtc *mtk_crtc = to_mtk_crtc(crtc); + + mutex_lock(&mtk_crtc->hw_lock); + + if (!mtk_crtc->sec_cmdq_client.chan) { + pr_err("crtc-%d secure mbox channel is NULL\n", drm_crtc_index(crtc)); + goto err; + } + + if (!mtk_crtc->sec_on) { + pr_debug("crtc-%d is already disabled!\n", drm_crtc_index(crtc)); + goto err; + } + + mbox_flush(mtk_crtc->sec_cmdq_client.chan, 0); + mtk_crtc->sec_cmdq_handle.cmd_buf_size = 0; + + if (mtk_crtc->sec_cmdq_handle.sec_data) { + struct cmdq_sec_data *sec_data; + + sec_data = mtk_crtc->sec_cmdq_handle.sec_data; + sec_data->addr_metadata_cnt = 0; + sec_data->addr_metadatas = (uintptr_t)NULL; + } + + /* + * Secure path only support DL mode, so we just wait + * the first path frame done here + */ + cmdq_pkt_wfe(&mtk_crtc->sec_cmdq_handle, mtk_crtc->cmdq_event, false); + + ddp_first_comp = mtk_crtc->ddp_comp[0]; + for (i = 0; i < mtk_crtc->layer_nr; i++) { + struct drm_plane *plane = &mtk_crtc->planes[i]; + + /* make sure secure layer off before switching secure state */ + if (!mtk_plane_fb_is_secure(plane->state->fb)) { + struct mtk_plane_state *plane_state = to_mtk_plane_state(plane->state); + + plane_state->pending.enable = false; + mtk_ddp_comp_layer_config(ddp_first_comp, i, plane_state, + &mtk_crtc->sec_cmdq_handle); + } + } + + /* Disable secure path */ + if (drm_crtc_index(crtc) == 0) + sec_scn = CMDQ_SEC_SCNR_PRIMARY_DISP_DISABLE; + else if (drm_crtc_index(crtc) == 1) + sec_scn = CMDQ_SEC_SCNR_SUB_DISP_DISABLE; + + cmdq_sec_pkt_set_data(&mtk_crtc->sec_cmdq_handle, sec_scn); + + cmdq_pkt_finalize(&mtk_crtc->sec_cmdq_handle); + dma_sync_single_for_device(mtk_crtc->sec_cmdq_client.chan->mbox->dev, + mtk_crtc->sec_cmdq_handle.pa_base, + mtk_crtc->sec_cmdq_handle.cmd_buf_size, + DMA_TO_DEVICE); + + mtk_crtc->sec_cmdq_working = true; + mbox_send_message(mtk_crtc->sec_cmdq_client.chan, &mtk_crtc->sec_cmdq_handle); + mbox_client_txdone(mtk_crtc->sec_cmdq_client.chan, 0); + + // Wait for sec state to be disabled by cmdq + wait_event_timeout(mtk_crtc->sec_cb_blocking_queue, + !mtk_crtc->sec_cmdq_working, + msecs_to_jiffies(500)); + + mtk_crtc->sec_on = false; + pr_debug("crtc-%d disable secure plane!\n", drm_crtc_index(crtc)); + +err: + mutex_unlock(&mtk_crtc->hw_lock); +#endif +} + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) +static void mtk_crtc_enable_secure_state(struct drm_crtc *crtc) +{ + enum cmdq_sec_scenario sec_scn = CMDQ_SEC_SCNR_MAX; + struct mtk_crtc *mtk_crtc = to_mtk_crtc(crtc); + + if (drm_crtc_index(crtc) == 0) + sec_scn = CMDQ_SEC_SCNR_PRIMARY_DISP; + else if (drm_crtc_index(crtc) == 1) + sec_scn = CMDQ_SEC_SCNR_SUB_DISP; + + cmdq_sec_pkt_set_data(&mtk_crtc->sec_cmdq_handle, sec_scn); + + pr_debug("crtc-%d enable secure plane!\n", drm_crtc_index(crtc)); +} +#endif + +static void mtk_crtc_plane_switch_sec_state(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + bool sec_on[MAX_CRTC] = {0}; + int i; + struct drm_crtc_state *crtc_state; + struct mtk_crtc *mtk_crtc = to_mtk_crtc(crtc); + struct drm_plane *plane; + struct drm_plane_state *old_plane_state; + + for_each_old_plane_in_state(state, plane, old_plane_state, i) { + if (!old_plane_state->crtc || !plane->state->crtc) + continue; + + if (plane->state->fb && + mtk_plane_fb_is_secure(plane->state->fb) && + mtk_crtc->sec_cmdq_client.chan) + sec_on[drm_crtc_index(plane->state->crtc)] = true; + } + + for_each_old_crtc_in_state(state, crtc, crtc_state, i) { + if (!crtc_state->active) + continue; + + mtk_crtc = to_mtk_crtc(crtc); + + if (!sec_on[i]) { + mtk_crtc_disable_secure_state(crtc); + continue; + } + + mutex_lock(&mtk_crtc->hw_lock); + mtk_crtc->sec_on = true; + mutex_unlock(&mtk_crtc->hw_lock); + } +#endif +} + #if IS_REACHABLE(CONFIG_MTK_CMDQ) static int mtk_drm_cmdq_pkt_create(struct cmdq_client *client, struct cmdq_pkt *pkt, size_t size) @@ -148,22 +292,33 @@ static void mtk_drm_cmdq_pkt_destroy(struct cmdq_pkt *pkt) dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt->buf_size, DMA_TO_DEVICE); kfree(pkt->va_base); + kfree(pkt->sec_data); } #endif static void mtk_crtc_destroy(struct drm_crtc *crtc) { struct mtk_crtc *mtk_crtc = to_mtk_crtc(crtc); + struct mtk_drm_private *priv = crtc->dev->dev_private; int i; + priv = priv->all_drm_private[drm_crtc_index(crtc)]; + mtk_mutex_put(mtk_crtc->mutex); #if IS_REACHABLE(CONFIG_MTK_CMDQ) mtk_drm_cmdq_pkt_destroy(&mtk_crtc->cmdq_handle); + mtk_drm_cmdq_pkt_destroy(&mtk_crtc->sec_cmdq_handle); if (mtk_crtc->cmdq_client.chan) { mbox_free_channel(mtk_crtc->cmdq_client.chan); mtk_crtc->cmdq_client.chan = NULL; } + + if (mtk_crtc->sec_cmdq_client.chan) { + device_link_remove(priv->dev, mtk_crtc->sec_cmdq_client.chan->mbox->dev); + mbox_free_channel(mtk_crtc->sec_cmdq_client.chan); + mtk_crtc->sec_cmdq_client.chan = NULL; + } #endif for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) { @@ -312,6 +467,11 @@ static void ddp_cmdq_cb(struct mbox_client *cl, void *mssg) if (data->sta < 0) return; + if (!data->pkt || !data->pkt->sec_data) + mtk_crtc = container_of(cmdq_cl, struct mtk_crtc, cmdq_client); + else + mtk_crtc = container_of(cmdq_cl, struct mtk_crtc, sec_cmdq_client); + state = to_mtk_crtc_state(mtk_crtc->base.state); state->pending_config = false; @@ -340,6 +500,11 @@ static void ddp_cmdq_cb(struct mbox_client *cl, void *mssg) mtk_crtc->pending_async_planes = false; } + if (mtk_crtc->sec_cmdq_working) { + mtk_crtc->sec_cmdq_working = false; + wake_up(&mtk_crtc->sec_cb_blocking_queue); + } + mtk_crtc->cmdq_vblank_cnt = 0; wake_up(&mtk_crtc->cb_blocking_queue); } @@ -563,7 +728,8 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc, static void mtk_crtc_update_config(struct mtk_crtc *mtk_crtc, bool needs_vblank) { #if IS_REACHABLE(CONFIG_MTK_CMDQ) - struct cmdq_pkt *cmdq_handle = &mtk_crtc->cmdq_handle; + struct cmdq_client cmdq_client; + struct cmdq_pkt *cmdq_handle; #endif struct drm_crtc *crtc = &mtk_crtc->base; struct mtk_drm_private *priv = crtc->dev->dev_private; @@ -601,14 +767,36 @@ static void mtk_crtc_update_config(struct mtk_crtc *mtk_crtc, bool needs_vblank) mtk_mutex_release(mtk_crtc->mutex); } #if IS_REACHABLE(CONFIG_MTK_CMDQ) - if (mtk_crtc->cmdq_client.chan) { + if (mtk_crtc->sec_on) { + mbox_flush(mtk_crtc->sec_cmdq_client.chan, 0); + mtk_crtc->sec_cmdq_handle.cmd_buf_size = 0; + + if (mtk_crtc->sec_cmdq_handle.sec_data) { + struct cmdq_sec_data *sec_data = mtk_crtc->sec_cmdq_handle.sec_data; + + memset((void *)sec_data->addr_metadatas, 0, + sec_data->addr_metadata_cnt * sizeof(u64)); + sec_data->addr_metadata_cnt = 0; + } + + mtk_crtc_enable_secure_state(crtc); + + cmdq_client = mtk_crtc->sec_cmdq_client; + cmdq_handle = &mtk_crtc->sec_cmdq_handle; + } else if (mtk_crtc->cmdq_client.chan) { mbox_flush(mtk_crtc->cmdq_client.chan, 2000); - cmdq_handle->cmd_buf_size = 0; + mtk_crtc->cmdq_handle.cmd_buf_size = 0; + + cmdq_client = mtk_crtc->cmdq_client; + cmdq_handle = &mtk_crtc->cmdq_handle; + } + + if (cmdq_client.chan) { cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); mtk_crtc_ddp_config(crtc, cmdq_handle); cmdq_pkt_finalize(cmdq_handle); - dma_sync_single_for_device(mtk_crtc->cmdq_client.chan->mbox->dev, + dma_sync_single_for_device(cmdq_client.chan->mbox->dev, cmdq_handle->pa_base, cmdq_handle->cmd_buf_size, DMA_TO_DEVICE); @@ -621,8 +809,8 @@ static void mtk_crtc_update_config(struct mtk_crtc *mtk_crtc, bool needs_vblank) */ mtk_crtc->cmdq_vblank_cnt = 3; - mbox_send_message(mtk_crtc->cmdq_client.chan, cmdq_handle); - mbox_client_txdone(mtk_crtc->cmdq_client.chan, 0); + mbox_send_message(cmdq_client.chan, cmdq_handle); + mbox_client_txdone(cmdq_client.chan, 0); } #endif mtk_crtc->config_updating = false; @@ -764,6 +952,8 @@ static void mtk_crtc_atomic_disable(struct drm_crtc *crtc, if (!mtk_crtc->enabled) return; + mtk_crtc_disable_secure_state(crtc); + /* Set all pending plane state to disabled */ for (i = 0; i < mtk_crtc->layer_nr; i++) { struct drm_plane *plane = &mtk_crtc->planes[i]; @@ -802,6 +992,8 @@ static void mtk_crtc_atomic_begin(struct drm_crtc *crtc, struct mtk_crtc *mtk_crtc = to_mtk_crtc(crtc); unsigned long flags; + mtk_crtc_plane_switch_sec_state(crtc, state); + if (mtk_crtc->event && mtk_crtc_state->base.event) DRM_ERROR("new event while there is still a pending event\n"); @@ -1091,8 +1283,7 @@ int mtk_crtc_create(struct drm_device *drm_dev, const unsigned int *path, if (ret) { dev_dbg(dev, "mtk_crtc %d failed to get mediatek,gce-events property\n", drm_crtc_index(&mtk_crtc->base)); - mbox_free_channel(mtk_crtc->cmdq_client.chan); - mtk_crtc->cmdq_client.chan = NULL; + goto cmdq_err; } else { ret = mtk_drm_cmdq_pkt_create(&mtk_crtc->cmdq_client, &mtk_crtc->cmdq_handle, @@ -1100,14 +1291,63 @@ int mtk_crtc_create(struct drm_device *drm_dev, const unsigned int *path, if (ret) { dev_dbg(dev, "mtk_crtc %d failed to create cmdq packet\n", drm_crtc_index(&mtk_crtc->base)); - mbox_free_channel(mtk_crtc->cmdq_client.chan); - mtk_crtc->cmdq_client.chan = NULL; + goto cmdq_err; } } /* for sending blocking cmd in crtc disable */ init_waitqueue_head(&mtk_crtc->cb_blocking_queue); } + + mtk_crtc->sec_cmdq_client.client.dev = mtk_crtc->mmsys_dev; + mtk_crtc->sec_cmdq_client.client.tx_block = false; + mtk_crtc->sec_cmdq_client.client.knows_txdone = true; + mtk_crtc->sec_cmdq_client.client.rx_callback = ddp_cmdq_cb; + mtk_crtc->sec_cmdq_client.chan = + mbox_request_channel(&mtk_crtc->sec_cmdq_client.client, i + 1); + if (IS_ERR(mtk_crtc->sec_cmdq_client.chan)) { + dev_err(dev, "mtk_crtc %d failed to create sec mailbox client\n", + drm_crtc_index(&mtk_crtc->base)); + mtk_crtc->sec_cmdq_client.chan = NULL; + } + + if (mtk_crtc->sec_cmdq_client.chan) { + struct device_link *link; + + /* add devlink to cmdq dev to make sure suspend/resume order is correct */ + link = device_link_add(priv->dev, mtk_crtc->sec_cmdq_client.chan->mbox->dev, + DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS); + if (!link) { + dev_err(priv->dev, "Unable to link dev=%s\n", + dev_name(mtk_crtc->sec_cmdq_client.chan->mbox->dev)); + ret = -ENODEV; + goto cmdq_err; + } + + ret = mtk_drm_cmdq_pkt_create(&mtk_crtc->sec_cmdq_client, + &mtk_crtc->sec_cmdq_handle, + PAGE_SIZE); + if (ret) { + dev_dbg(dev, "mtk_crtc %d failed to create cmdq secure packet\n", + drm_crtc_index(&mtk_crtc->base)); + goto cmdq_err; + } + + /* for sending blocking cmd in crtc disable */ + init_waitqueue_head(&mtk_crtc->sec_cb_blocking_queue); + } + +cmdq_err: + if (ret) { + if (mtk_crtc->cmdq_client.chan) { + mbox_free_channel(mtk_crtc->cmdq_client.chan); + mtk_crtc->cmdq_client.chan = NULL; + } + if (mtk_crtc->sec_cmdq_client.chan) { + mbox_free_channel(mtk_crtc->sec_cmdq_client.chan); + mtk_crtc->sec_cmdq_client.chan = NULL; + } + } #endif if (conn_routes) { diff --git a/drivers/gpu/drm/mediatek/mtk_crtc.h b/drivers/gpu/drm/mediatek/mtk_crtc.h index 388e900b6f4d..0b0be01c25f2 100644 --- a/drivers/gpu/drm/mediatek/mtk_crtc.h +++ b/drivers/gpu/drm/mediatek/mtk_crtc.h @@ -19,6 +19,7 @@ int mtk_crtc_create(struct drm_device *drm_dev, const unsigned int *path, unsigned int path_len, int priv_data_index, const struct mtk_drm_route *conn_routes, unsigned int num_conn_routes); +void mtk_crtc_disable_secure_state(struct drm_crtc *crtc); int mtk_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane, struct mtk_plane_state *state); void mtk_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane, diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediatek/mtk_plane.c index 478206f21fd0..95e1b17091f0 100644 --- a/drivers/gpu/drm/mediatek/mtk_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_plane.c @@ -287,6 +287,13 @@ static void mtk_plane_atomic_disable(struct drm_plane *plane, mtk_plane_state->pending.enable = false; wmb(); /* Make sure the above parameter is set before update */ mtk_plane_state->pending.dirty = true; + + if (mtk_plane_state->pending.is_secure) { + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); + + if (old_state->crtc) + mtk_crtc_disable_secure_state(old_state->crtc); + } } static void mtk_plane_atomic_update(struct drm_plane *plane, From patchwork Sat May 25 23:29:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason-JH.Lin" X-Patchwork-Id: 13674157 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A08A0C25B78 for ; Sat, 25 May 2024 23:29:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; 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Lin" , Singo Chang , "Nancy Lin" , Shawn Sung , , Jeffrey Kardatzke Subject: [PATCH v6 7/7] drm/mediatek: Add cmdq_insert_backup_cookie before secure pkt finalize Date: Sun, 26 May 2024 07:29:28 +0800 Message-ID: <20240525232928.5524-8-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240525232928.5524-1-jason-jh.lin@mediatek.com> References: <20240525232928.5524-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--11.595200-8.000000 X-TMASE-MatchedRID: XAa2d/45j8Tob/hVdrvnXjPDkSOzeDWW+eBf9ovw8I27eXIF2U7rKy+8 OxujShyxE/UmhJjBrzZC3mgca9yt8kttpN+KVVd9syNb+yeIRArvJY9pBzgg1P+RKQghHjkeBgH mCxujQvyjmrD+IUq29hI7tf+6KnxtiBoFctaOhN8jRwcsjqWGAgrefVId6fzVCqIJhrrDy2/jZY 67L74Lw7o3/co+ykK6UFTYnego7LJccQ8eam5EfRRFJJyf5BJe3QfwsVk0UbtuRXh7bFKB7gRuY qpRzYwt5tYzjYMxVNFdPwsV1FdNCbaRD1c+EJMdvuvB6gAgryg= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--11.595200-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 9AEA3DB8CB88483491FE005922C30F1CE0AE72AEC367029CE1464088C652F4422000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240525_162940_365413_97DF2CD6 X-CRM114-Status: GOOD ( 12.14 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add cmdq_insert_backup_cookie to append some commands before EOC: 1. Get GCE HW thread execute count from the GCE HW register. 2. Add 1 to the execute count and then store into a shared memory. 3. Set a software event siganl as secure irq to GCE HW. Since the value of execute count + 1 is stored in a shared memory, CMDQ driver in the normal world can use it to handle task done in irq handler and CMDQ driver in the secure world will use it to schedule the task slot for each secure thread. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_crtc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_crtc.c b/drivers/gpu/drm/mediatek/mtk_crtc.c index 59f6263ae806..0df9bf695f65 100644 --- a/drivers/gpu/drm/mediatek/mtk_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_crtc.c @@ -178,6 +178,7 @@ void mtk_crtc_disable_secure_state(struct drm_crtc *crtc) cmdq_sec_pkt_set_data(&mtk_crtc->sec_cmdq_handle, sec_scn); + cmdq_sec_insert_backup_cookie(&mtk_crtc->sec_cmdq_handle); cmdq_pkt_finalize(&mtk_crtc->sec_cmdq_handle); dma_sync_single_for_device(mtk_crtc->sec_cmdq_client.chan->mbox->dev, mtk_crtc->sec_cmdq_handle.pa_base, @@ -795,6 +796,8 @@ static void mtk_crtc_update_config(struct mtk_crtc *mtk_crtc, bool needs_vblank) cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); mtk_crtc_ddp_config(crtc, cmdq_handle); + if (cmdq_handle->sec_data) + cmdq_sec_insert_backup_cookie(cmdq_handle); cmdq_pkt_finalize(cmdq_handle); dma_sync_single_for_device(cmdq_client.chan->mbox->dev, cmdq_handle->pa_base,