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PTR:; CAT:NONE; SFTY:; SFS:(4636009)(346002)(376002)(136003)(39860400002)(396003)(366004)(86362001)(83380400001)(6506007)(52116002)(478600001)(66556008)(66946007)(8676002)(9686003)(66476007)(6512007)(8936002)(2906002)(186003)(36756003)(2616005)(6486002)(956004)(4326008)(69590400007)(16526019)(6666004)(26005)(5660300002)(316002); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 6eJ8Ncr99W1LYK0Pcvw2kcgxPQqiGfvsD1AIg0j5XYENIxxVAR/1hA1L8OC+/AaIGlDNQeC3D17tDyaQReTPuaDguXp1WwmPp4goNMf/SdGWpZA4WRzcWYiBonnyQYK9UQ+/bzREkw7j9f42hf+RJ6DvdjtudT+X6FwVPowKqkRyMVtKmsNpEACYvvTiinSlSY/4rgUqxMsizry7cRYQxltQVkQjgIsZct/XxZTVZZSqMERJo66ARhtCmJUC8ozrGaDFmh8j4s1yKM6Qcl7g86tnf2Nq3Nl89dvp+M4erRDz7iRCjYynegvIGHUlh+QWPljZAlp/cgVaCgy53Q6vcef7YCymQuxc80wzo2AsYMzgcf9w3c7XaccR5QwC51HPehNOQIzRz709WCrNPTHRJsg03jsQx8Y1cbNMQId91o6cJKo7rlZkyaBG33tCLegr3J52HhJcxpr91smzjcGd2vdrHUALY/9KCnWyWwhGUqY= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c50392bb-02d6-4d3b-5645-08d808f5a596 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Jun 2020 02:10:41.4626 (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: UIA5OmCH1Hrtve1Bo5IFN6cM7QXpfLRu8DL+PA5g3qPquH8qL5PTBqSk74WPGKq+5EEFHZ4kaSuEf/3knRs+Mg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB6PR0402MB2696 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200604_191046_197697_A2AF48DC X-CRM114-Status: GOOD ( 15.85 ) X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [40.107.21.45 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.21.45 listed in wl.mailspike.net] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Fan , festevam@gmail.com, qiangqing.zhang@nxp.com, linux@rempel-privat.de, franck.lenormand@nxp.com, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, leonard.crestez@nxp.com, daniel.baluta@nxp.com, linux-kernel@vger.kernel.org, linux-imx@nxp.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Peng Fan Add resource management API, when we have multiple partition running together, resources not owned to current partition should not be used. Reviewed-by: Leonard Crestez Reviewed-by: Dong Aisheng Signed-off-by: Peng Fan --- drivers/firmware/imx/Makefile | 2 +- drivers/firmware/imx/rm.c | 45 ++++++++++++++++++++++++ include/linux/firmware/imx/sci.h | 1 + include/linux/firmware/imx/svc/rm.h | 69 +++++++++++++++++++++++++++++++++++++ 4 files changed, 116 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 08bc9ddfbdfb..17ea3613e142 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 000000000000..a12db6ff323b --- /dev/null +++ b/drivers/firmware/imx/rm.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2020 NXP + * + * File containing client-side RPC functions for the RM service. These + * function 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); + +/* + * This function check @resource is owned by current partition or not + * + * @param[in] ipc IPC handle + * @param[in] resource resource the control is associated with + * + * @return Returns 0 for not owned and 1 for owned. + */ +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; + + /* + * SCU firmware only returns value 0 or 1 + * for resource owned check which means not owned or owned. + * So it is always successful. + */ + 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 3fa418a4ca67..3c459f54a88f 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 000000000000..456b6a59d29b --- /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) + * Resource Management (RM) function. This includes functions for + * partitioning resources, pads, and memory regions. + * + * 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