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Mon, 20 Jul 2020 09:06:20 +0000 From: franck.lenormand@oss.nxp.com To: shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com Cc: franck.lenormand@oss.nxp.com, kernel@pengutronix.de, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, aisheng.dong@nxp.com, abel.vesa@nxp.com, Anson.Huang@nxp.com, linux@rempel-privat.de, leonard.crestez@nxp.com, daniel.baluta@nxp.com, qiangqing.zhang@nxp.com, peng.fan@nxp.com Subject: [PATCH 1/7] firmware: imx: scu-rm: Add Resource Management APIs Date: Mon, 20 Jul 2020 11:06:11 +0200 Message-Id: <1595235977-106241-2-git-send-email-franck.lenormand@oss.nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1595235977-106241-1-git-send-email-franck.lenormand@oss.nxp.com> References: <1595235977-106241-1-git-send-email-franck.lenormand@oss.nxp.com> Content-Type: text/plain X-ClientProxiedBy: AM0PR10CA0075.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:15::28) To AM4PR0401MB2401.eurprd04.prod.outlook.com (2603:10a6:200:47::26) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from SOPDPUATS05.ea.freescale.net (81.1.10.98) by AM0PR10CA0075.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:15::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3195.18 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: tTx7ZI85rWNKQ8mWT4wLqHy1jFAqrXOreK9HIsXaSBv/Tjm3mC/VVzY3omXMz3Prd0lsjsIdUh+0S+IVFaLX+vLQSJR3q7VjGEzLYOiLY973TyI4gi4WSlGl18NUmoql8eM8YBLXHTiCCt8x+dLeq8GakI0bUDeOUXu+gC2JdsFsM9fgMlsrWHUpva0XDJv8OseF8N6mJwk8MFRSODCwIYDuhadqxrddaI5X+OVCYbjjsLHZHqFg4w/p/qo6W0/j3iPYYz+ZuWQWkV85fZX5H0fxSh5RsUGSKpVJ7i2rRZjCkDqFGVv34nnFnq8AsGLaY01hKHk9IvxP6sLPh782q2uip0/jR05d8MN7Tf2jW/rD0n0m9uPS3sGOiCWguDaPp1d+lU2dKdXUjTvaDqRVaDGHqDl/CPlh7iJoBEswgSwPJd5hCsxPeWoI1yP+wVfigxH+M4/sHaVooHCc0NFnZ6isgw7VZr27sU3qykdGLfM= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: cc0089e8-8c6a-4521-ac35-08d82c8c2aed X-MS-Exchange-CrossTenant-AuthSource: AM4PR0401MB2401.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Jul 2020 09:06:20.2786 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: nSdGoouyI0fn1V4no13ZTwIsbH9eNsLEOroO/jAvs9+wUN2FTIuzGnZb3I4xTzfuIzMI0lWCQV/QOescqMv3L0y772QnR2mxH019nAMuP6s= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR0402MB3762 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Franck LENORMAND This patch adds the imx_sc_rm_is_resource_owned indicating if a specific resource is owned by the caller. Signed-off-by: Franck LENORMAND --- drivers/firmware/imx/Makefile | 2 +- drivers/firmware/imx/rm.c | 44 +++++++++++++++++++++++ include/linux/firmware/imx/sci.h | 1 + include/linux/firmware/imx/svc/rm.h | 69 +++++++++++++++++++++++++++++++++++++ 4 files changed, 115 insertions(+), 1 deletion(-) create mode 100644 drivers/firmware/imx/rm.c create mode 100644 include/linux/firmware/imx/svc/rm.h diff --git a/drivers/firmware/imx/Makefile b/drivers/firmware/imx/Makefile index 08bc9dd..17ea361 100644 --- a/drivers/firmware/imx/Makefile +++ b/drivers/firmware/imx/Makefile @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_IMX_DSP) += imx-dsp.o -obj-$(CONFIG_IMX_SCU) += imx-scu.o misc.o imx-scu-irq.o +obj-$(CONFIG_IMX_SCU) += imx-scu.o misc.o imx-scu-irq.o rm.o obj-$(CONFIG_IMX_SCU_PD) += scu-pd.o diff --git a/drivers/firmware/imx/rm.c b/drivers/firmware/imx/rm.c new file mode 100644 index 00000000..a397c6b --- /dev/null +++ b/drivers/firmware/imx/rm.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * Copyright 2017-2020 NXP + * + * File containing client-side RPC functions for the RM service. These + * functions are ported to clients that communicate to the SC. + */ + +#include + +struct imx_sc_msg_rm_rsrc_owned { + struct imx_sc_rpc_msg hdr; + u16 resource; +} __packed __aligned(4); + +/** + * imx_sc_rm_is_resource_owned() - Checks @resource is owned by current + * partition or not + * + * @ipc: IPC handle + * @resource: resource the control is associated with + * + * Return: + * 0 - OK + * < 0 - error. + */ +bool imx_sc_rm_is_resource_owned(struct imx_sc_ipc *ipc, u16 resource) +{ + struct imx_sc_msg_rm_rsrc_owned msg; + struct imx_sc_rpc_msg *hdr = &msg.hdr; + + hdr->ver = IMX_SC_RPC_VERSION; + hdr->svc = IMX_SC_RPC_SVC_RM; + hdr->func = IMX_SC_RM_FUNC_IS_RESOURCE_OWNED; + hdr->size = 2; + + msg.resource = resource; + + imx_scu_call_rpc(ipc, &msg, true); + + return hdr->func; +} +EXPORT_SYMBOL(imx_sc_rm_is_resource_owned); diff --git a/include/linux/firmware/imx/sci.h b/include/linux/firmware/imx/sci.h index 3fa418a..3c459f5 100644 --- a/include/linux/firmware/imx/sci.h +++ b/include/linux/firmware/imx/sci.h @@ -14,6 +14,7 @@ #include #include +#include int imx_scu_enable_general_irq_channel(struct device *dev); int imx_scu_irq_register_notifier(struct notifier_block *nb); diff --git a/include/linux/firmware/imx/svc/rm.h b/include/linux/firmware/imx/svc/rm.h new file mode 100644 index 00000000..9924216 --- /dev/null +++ b/include/linux/firmware/imx/svc/rm.h @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2016 Freescale Semiconductor, Inc. + * Copyright 2017-2020 NXP + * + * Header file containing the public API for the System Controller (SC) + * Power Management (PM) function. This includes functions for power state + * control, clock control, reset control, and wake-up event control. + * + * RM_SVC (SVC) Resource Management Service + * + * Module for the Resource Management (RM) service. + */ + +#ifndef _SC_RM_API_H +#define _SC_RM_API_H + +#include + +/* + * This type is used to indicate RPC RM function calls. + */ +enum imx_sc_rm_func { + IMX_SC_RM_FUNC_UNKNOWN = 0, + IMX_SC_RM_FUNC_PARTITION_ALLOC = 1, + IMX_SC_RM_FUNC_SET_CONFIDENTIAL = 31, + IMX_SC_RM_FUNC_PARTITION_FREE = 2, + IMX_SC_RM_FUNC_GET_DID = 26, + IMX_SC_RM_FUNC_PARTITION_STATIC = 3, + IMX_SC_RM_FUNC_PARTITION_LOCK = 4, + IMX_SC_RM_FUNC_GET_PARTITION = 5, + IMX_SC_RM_FUNC_SET_PARENT = 6, + IMX_SC_RM_FUNC_MOVE_ALL = 7, + IMX_SC_RM_FUNC_ASSIGN_RESOURCE = 8, + IMX_SC_RM_FUNC_SET_RESOURCE_MOVABLE = 9, + IMX_SC_RM_FUNC_SET_SUBSYS_RSRC_MOVABLE = 28, + IMX_SC_RM_FUNC_SET_MASTER_ATTRIBUTES = 10, + IMX_SC_RM_FUNC_SET_MASTER_SID = 11, + IMX_SC_RM_FUNC_SET_PERIPHERAL_PERMISSIONS = 12, + IMX_SC_RM_FUNC_IS_RESOURCE_OWNED = 13, + IMX_SC_RM_FUNC_GET_RESOURCE_OWNER = 33, + IMX_SC_RM_FUNC_IS_RESOURCE_MASTER = 14, + IMX_SC_RM_FUNC_IS_RESOURCE_PERIPHERAL = 15, + IMX_SC_RM_FUNC_GET_RESOURCE_INFO = 16, + IMX_SC_RM_FUNC_MEMREG_ALLOC = 17, + IMX_SC_RM_FUNC_MEMREG_SPLIT = 29, + IMX_SC_RM_FUNC_MEMREG_FRAG = 32, + IMX_SC_RM_FUNC_MEMREG_FREE = 18, + IMX_SC_RM_FUNC_FIND_MEMREG = 30, + IMX_SC_RM_FUNC_ASSIGN_MEMREG = 19, + IMX_SC_RM_FUNC_SET_MEMREG_PERMISSIONS = 20, + IMX_SC_RM_FUNC_IS_MEMREG_OWNED = 21, + IMX_SC_RM_FUNC_GET_MEMREG_INFO = 22, + IMX_SC_RM_FUNC_ASSIGN_PAD = 23, + IMX_SC_RM_FUNC_SET_PAD_MOVABLE = 24, + IMX_SC_RM_FUNC_IS_PAD_OWNED = 25, + IMX_SC_RM_FUNC_DUMP = 27, +}; + +#if IS_ENABLED(CONFIG_IMX_SCU) +bool imx_sc_rm_is_resource_owned(struct imx_sc_ipc *ipc, u16 resource); +#else +static inline bool +imx_sc_rm_is_resource_owned(struct imx_sc_ipc *ipc, u16 resource) +{ + return true; +} +#endif +#endif -- 2.7.4