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 MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: a5052df4-acad-4a58-eb11-08d806a2207f X-MS-Exchange-CrossTenant-originalarrivaltime: 02 Jun 2020 03:07:47.1618 (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: 3+aNPa67J+Lu0vCNI+fLs2+pKOqba8sr5JIK2LCBix7hdffSWkdy2aP3eiQ+/4mbapMtSCe8e2V7PLz7eQ1u9A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR04MB5783 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200601_200750_886557_FE49E28B X-CRM114-Status: GOOD ( 21.22 ) 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: "festevam@gmail.com" , Joakim Zhang , "linux@rempel-privat.de" , "linux-arm-kernel@lists.infradead.org" , "kernel@pengutronix.de" , Leonard Crestez , Daniel Baluta , "linux-kernel@vger.kernel.org" , dl-linux-imx Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org > From: Peng Fan > Sent: Thursday, April 23, 2020 3:00 PM > > 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 > Signed-off-by: Peng Fan > --- > drivers/firmware/imx/Makefile | 2 +- > drivers/firmware/imx/rm.c | 40 +++++++++++++++++++++ > include/linux/firmware/imx/sci.h | 1 + > include/linux/firmware/imx/svc/rm.h | 69 > +++++++++++++++++++++++++++++++++++++ > 4 files changed, 111 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..7b0334de5486 > --- /dev/null > +++ b/drivers/firmware/imx/rm.c > @@ -0,0 +1,40 @@ > +// 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 success and < 0 for errors. > + */ > +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); No need check err return? > + > + 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 17ba4e405129..b5c5a56f29be 100644 > --- a/include/linux/firmware/imx/sci.h > +++ b/include/linux/firmware/imx/sci.h > @@ -15,6 +15,7 @@ > > #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..fc6ea62d9d0e > --- /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 2017-2019 NXP Update copyright > + * > + * 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. Fix the code comments Otherwise, I'm fine with this patch. Regards Aisheng > + * > + * 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 > -- > 2.16.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel