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Diffstat (limited to 'plat/imx/common/include/sci/svc/rm/sci_rm_api.h')
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diff --git a/plat/imx/common/include/sci/svc/rm/sci_rm_api.h b/plat/imx/common/include/sci/svc/rm/sci_rm_api.h new file mode 100644 index 0000000..df1bc40 --- /dev/null +++ b/plat/imx/common/include/sci/svc/rm/sci_rm_api.h @@ -0,0 +1,757 @@ +/* + * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/*! + * 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. + * + * @addtogroup RM_SVC (SVC) Resource Management Service + * + * Module for the Resource Management (RM) service. + * + * @includedoc rm/details.dox + * + * @{ + */ + +#ifndef SCI_RM_API_H +#define SCI_RM_API_H + +/* Includes */ + +#include <sci/sci_types.h> + +/* Defines */ + +/*! + * @name Defines for type widths + */ +/*@{*/ +#define SC_RM_PARTITION_W 5 /* Width of sc_rm_pt_t */ +#define SC_RM_MEMREG_W 6 /* Width of sc_rm_mr_t */ +#define SC_RM_DID_W 4 /* Width of sc_rm_did_t */ +#define SC_RM_SID_W 6 /* Width of sc_rm_sid_t */ +#define SC_RM_SPA_W 2 /* Width of sc_rm_spa_t */ +#define SC_RM_PERM_W 3 /* Width of sc_rm_perm_t */ +/*@}*/ + +/*! + * @name Defines for ALL parameters + */ +/*@{*/ +#define SC_RM_PT_ALL ((sc_rm_pt_t) UINT8_MAX) /* All partitions */ +#define SC_RM_MR_ALL ((sc_rm_mr_t) UINT8_MAX) /* All memory regions */ +/*@}*/ + +/*! + * @name Defines for sc_rm_spa_t + */ +/*@{*/ +#define SC_RM_SPA_PASSTHRU 0U /* Pass through (attribute driven by master) */ +#define SC_RM_SPA_PASSSID 1U /* Pass through and output on SID */ +#define SC_RM_SPA_ASSERT 2U /* Assert (force to be secure/privileged) */ +#define SC_RM_SPA_NEGATE 3U /* Negate (force to be non-secure/user) */ +/*@}*/ + +/*! + * @name Defines for sc_rm_perm_t + */ +/*@{*/ +#define SC_RM_PERM_NONE 0U /* No access */ +#define SC_RM_PERM_SEC_R 1U /* Secure RO */ +#define SC_RM_PERM_SECPRIV_RW 2U /* Secure privilege R/W */ +#define SC_RM_PERM_SEC_RW 3U /* Secure R/W */ +#define SC_RM_PERM_NSPRIV_R 4U /* Secure R/W, non-secure privilege RO */ +#define SC_RM_PERM_NS_R 5U /* Secure R/W, non-secure RO */ +#define SC_RM_PERM_NSPRIV_RW 6U /* Secure R/W, non-secure privilege R/W */ +#define SC_RM_PERM_FULL 7U /* Full access */ +/*@}*/ + +/* Types */ + +/*! + * This type is used to declare a resource partition. + */ +typedef uint8_t sc_rm_pt_t; + +/*! + * This type is used to declare a memory region. + */ +typedef uint8_t sc_rm_mr_t; + +/*! + * This type is used to declare a resource domain ID used by the + * isolation HW. + */ +typedef uint8_t sc_rm_did_t; + +/*! + * This type is used to declare an SMMU StreamID. + */ +typedef uint16_t sc_rm_sid_t; + +/*! + * This type is a used to declare master transaction attributes. + */ +typedef uint8_t sc_rm_spa_t; + +/*! + * This type is used to declare a resource/memory region access permission. + * Refer to the XRDC2 Block Guide for more information. + */ +typedef uint8_t sc_rm_perm_t; + +/* Functions */ + +/*! + * @name Partition Functions + * @{ + */ + +/*! + * This function requests that the SC create a new resource partition. + * + * @param[in] ipc IPC handle + * @param[out] pt return handle for partition; used for subsequent function + * calls associated with this partition + * @param[in] secure boolean indicating if this partition should be secure; only + * valid if caller is secure + * @param[in] isolated boolean indicating if this partition should be HW isolated + * via XRDC; set SC_TRUE if new DID is desired + * @param[in] restricted boolean indicating if this partition should be restricted; set + * SC_TRUE if masters in this partition cannot create new partitions + * @param[in] grant boolean indicating if this partition should always grant + * access and control to the parent + * @param[in] coherent boolean indicating if this partition is coherent; + * set SC_TRUE if only this partition will contain both AP clusters + * and they will be coherent via the CCI + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_ERR_PARM if caller's partition is not secure but a new secure partition is requested, + * - SC_ERR_LOCKED if caller's partition is locked, + * - SC_ERR_UNAVAILABLE if partition table is full (no more allocation space) + * + * Marking as non-secure prevents subsequent functions from configuring masters in this + * partition to assert the secure signal. If restricted then the new partition is limited + * in what functions it can call, especially those associated with managing partitions. + * + * The grant option is usually used to isolate a bus master's traffic to specific + * memory without isolating the peripheral interface of the master or the API + * controls of that master. + */ +sc_err_t sc_rm_partition_alloc(sc_ipc_t ipc, sc_rm_pt_t *pt, sc_bool_t secure, + sc_bool_t isolated, sc_bool_t restricted, + sc_bool_t grant, sc_bool_t coherent); + +/*! + * This function makes a partition confidential. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition that is granting + * @param[in] retro retroactive + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if \a pt out of range, + * - SC_ERR_NOACCESS if caller's not allowed to change \a pt + * - SC_ERR_LOCKED if partition \a pt is locked + * + * Call to make a partition confidential. Confidential means only this + * partition should be able to grant access permissions to this partition. + * + * If retroactive, then all resources owned by other partitions will have + * access rights for this partition removed, even if locked. + */ +sc_err_t sc_rm_set_confidential(sc_ipc_t ipc, sc_rm_pt_t pt, sc_bool_t retro); + +/*! + * This function frees a partition and assigns all resources to the caller. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition to free + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if \a pt out of range or invalid, + * - SC_ERR_NOACCESS if \a pt is the SC partition, + * - SC_ERR_NOACCESS if caller's partition is not the parent of \a pt, + * - SC_ERR_LOCKED if \a pt or caller's partition is locked + * + * All resources, memory regions, and pads are assigned to the caller/parent. + * The partition watchdog is disabled (even if locked). DID is freed. + */ +sc_err_t sc_rm_partition_free(sc_ipc_t ipc, sc_rm_pt_t pt); + +/*! + * This function returns the DID of a partition. + * + * @param[in] ipc IPC handle + * + * @return Returns the domain ID (DID) of the caller's partition. + * + * The DID is a SoC-specific internal ID used by the HW resource + * protection mechanism. It is only required by clients when using the + * SEMA42 module as the DID is sometimes connected to the master ID. + */ +sc_rm_did_t sc_rm_get_did(sc_ipc_t ipc); + +/*! + * This function forces a partition to use a specific static DID. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition to assign \a did + * @param[in] did static DID to assign + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if \a pt or \a did out of range, + * - SC_ERR_NOACCESS if caller's partition is not the parent of \a pt, + * - SC_ERR_LOCKED if \a pt is locked + * + * Assumes no assigned resources or memory regions yet! The number of static + * DID is fixed by the SC at boot. + */ +sc_err_t sc_rm_partition_static(sc_ipc_t ipc, sc_rm_pt_t pt, sc_rm_did_t did); + +/*! + * This function locks a partition. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition to lock + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if \a pt out of range, + * - SC_ERR_NOACCESS if caller's partition is not the parent of \a pt + * + * If a partition is locked it cannot be freed, have resources/pads assigned + * to/from it, memory regions created/assigned, DID changed, or parent changed. + */ +sc_err_t sc_rm_partition_lock(sc_ipc_t ipc, sc_rm_pt_t pt); + +/*! + * This function gets the partition handle of the caller. + * + * @param[in] ipc IPC handle + * @param[out] pt return handle for caller's partition + * + * @return Returns an error code (SC_ERR_NONE = success). + */ +sc_err_t sc_rm_get_partition(sc_ipc_t ipc, sc_rm_pt_t *pt); + +/*! + * This function sets a new parent for a partition. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition for which parent is to be + * changed + * @param[in] pt_parent handle of partition to set as parent + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the parent of \a pt, + * - SC_ERR_LOCKED if either partition is locked + */ +sc_err_t sc_rm_set_parent(sc_ipc_t ipc, sc_rm_pt_t pt, sc_rm_pt_t pt_parent); + +/*! + * This function moves all movable resources/pads owned by a source partition + * to a destination partition. It can be used to more quickly set up a new + * partition if a majority of the caller's resources are to be moved to a + * new partition. + * + * @param[in] ipc IPC handle + * @param[in] pt_src handle of partition from which resources should + * be moved from + * @param[in] pt_dst handle of partition to which resources should be + * moved to + * @param[in] move_rsrc boolean to indicate if resources should be moved + * @param[in] move_pads boolean to indicate if pads should be moved + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * By default, all resources are movable. This can be changed using the + * sc_rm_set_resource_movable() function. Note all masters defaulted to SMMU + * bypass. + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not \a pt_src or the + * parent of \a pt_src, + * - SC_ERR_LOCKED if either partition is locked + */ +sc_err_t sc_rm_move_all(sc_ipc_t ipc, sc_rm_pt_t pt_src, sc_rm_pt_t pt_dst, + sc_bool_t move_rsrc, sc_bool_t move_pads); + +/* @} */ + +/*! + * @name Resource Functions + * @{ + */ + +/*! + * This function assigns ownership of a resource to a partition. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition to which resource should be + * assigned + * @param[in] resource resource to assign + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * This action resets the resource's master and peripheral attributes. + * Privilege attribute will be PASSTHRU, security attribute will be + * ASSERT if the partition si secure and NEGATE if it is not, and + * masters will defaulted to SMMU bypass. Access permissions will reset + * to SEC_RW for the owning partition only for secure partitions, FULL for + * non-secure. DEfault is no access by other partitions. + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the resource owner or parent + * of the owner, + * - SC_ERR_LOCKED if the owning partition or \a pt is locked + */ +sc_err_t sc_rm_assign_resource(sc_ipc_t ipc, sc_rm_pt_t pt, sc_rsrc_t resource); + +/*! + * This function flags resources as movable or not. + * + * @param[in] ipc IPC handle + * @param[in] resource_fst first resource for which flag should be set + * @param[in] resource_lst last resource for which flag should be set + * @param[in] movable movable flag (SC_TRUE is movable) + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if resources are out of range, + * - SC_ERR_NOACCESS if caller's partition is not a parent of a resource owner, + * - SC_ERR_LOCKED if the owning partition is locked + * + * This function is used to determine the set of resources that will be + * moved using the sc_rm_move_all() function. All resources are movable + * by default so this function is normally used to prevent a set of + * resources from moving. + */ +sc_err_t sc_rm_set_resource_movable(sc_ipc_t ipc, sc_rsrc_t resource_fst, + sc_rsrc_t resource_lst, sc_bool_t movable); + +/*! + * This function flags all of a subsystem's resources as movable + * or not. + * + * @param[in] ipc IPC handle + * @param[in] resource resource to use to identify subsystem + * @param[in] movable movable flag (SC_TRUE is movable) + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_PARM if a function argument is out of range + * + * Note \a resource is used to find the associated subsystem. Only + * resources owned by the caller are set. + */ +sc_err_t sc_rm_set_subsys_rsrc_movable(sc_ipc_t ipc, sc_rsrc_t resource, + sc_bool_t movable); + +/*! + * This function sets attributes for a resource which is a bus master (i.e. + * capable of DMA). + * + * @param[in] ipc IPC handle + * @param[in] resource master resource for which attributes should apply + * @param[in] sa security attribute + * @param[in] pa privilege attribute + * @param[in] smmu_bypass SMMU bypass mode + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not a parent of the resource owner, + * - SC_ERR_LOCKED if the owning partition is locked + * + * This function configures how the HW isolation will see bus transactions + * from the specified master. Note the security attribute will only be + * changed if the caller's partition is secure. + */ +sc_err_t sc_rm_set_master_attributes(sc_ipc_t ipc, sc_rsrc_t resource, + sc_rm_spa_t sa, sc_rm_spa_t pa, + sc_bool_t smmu_bypass); + +/*! + * This function sets the StreamID for a resource which is a bus master (i.e. + * capable of DMA). + * + * @param[in] ipc IPC handle + * @param[in] resource master resource for which attributes should apply + * @param[in] sid StreamID + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the resource owner or parent + * of the owner, + * - SC_ERR_LOCKED if the owning partition is locked + * + * This function configures the SID attribute associated with all bus transactions + * from this master. Note 0 is not a valid SID as it is reserved to indicate + * bypass. + */ +sc_err_t sc_rm_set_master_sid(sc_ipc_t ipc, sc_rsrc_t resource, + sc_rm_sid_t sid); + +/*! + * This function sets access permissions for a peripheral resource. + * + * @param[in] ipc IPC handle + * @param[in] resource peripheral resource for which permissions should apply + * @param[in] pt handle of partition \a perm should by applied for + * @param[in] perm permissions to apply to \a resource for \a pt + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the resource owner or parent + * of the owner, + * - SC_ERR_LOCKED if the owning partition is locked + * - SC_ERR_LOCKED if the \a pt is confidential and the caller isn't \a pt + * + * This function configures how the HW isolation will restrict access to a + * peripheral based on the attributes of a transaction from bus master. + */ +sc_err_t sc_rm_set_peripheral_permissions(sc_ipc_t ipc, sc_rsrc_t resource, + sc_rm_pt_t pt, sc_rm_perm_t perm); + +/*! + * This function gets ownership status of a resource. + * + * @param[in] ipc IPC handle + * @param[in] resource resource to check + * + * @return Returns a boolean (SC_TRUE if caller's partition owns the resource). + * + * If \a resource is out of range then SC_FALSE is returned. + */ +sc_bool_t sc_rm_is_resource_owned(sc_ipc_t ipc, sc_rsrc_t resource); + +/*! + * This function is used to test if a resource is a bus master. + * + * @param[in] ipc IPC handle + * @param[in] resource resource to check + * + * @return Returns a boolean (SC_TRUE if the resource is a bus master). + * + * If \a resource is out of range then SC_FALSE is returned. + */ +sc_bool_t sc_rm_is_resource_master(sc_ipc_t ipc, sc_rsrc_t resource); + +/*! + * This function is used to test if a resource is a peripheral. + * + * @param[in] ipc IPC handle + * @param[in] resource resource to check + * + * @return Returns a boolean (SC_TRUE if the resource is a peripheral). + * + * If \a resource is out of range then SC_FALSE is returned. + */ +sc_bool_t sc_rm_is_resource_peripheral(sc_ipc_t ipc, sc_rsrc_t resource); + +/*! + * This function is used to obtain info about a resource. + * + * @param[in] ipc IPC handle + * @param[in] resource resource to inquire about + * @param[out] sid pointer to return StreamID + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if \a resource is out of range + */ +sc_err_t sc_rm_get_resource_info(sc_ipc_t ipc, sc_rsrc_t resource, + sc_rm_sid_t *sid); + +/* @} */ + +/*! + * @name Memory Region Functions + * @{ + */ + +/*! + * This function requests that the SC create a new memory region. + * + * @param[in] ipc IPC handle + * @param[out] mr return handle for region; used for + * subsequent function calls + * associated with this region + * @param[in] addr_start start address of region (physical) + * @param[in] addr_end end address of region (physical) + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_PARM if the new memory region is misaligned, + * - SC_ERR_LOCKED if caller's partition is locked, + * - SC_ERR_PARM if the new memory region spans multiple existing regions, + * - SC_ERR_NOACCESS if caller's partition does not own the memory containing + * the new region, + * - SC_ERR_UNAVAILABLE if memory region table is full (no more allocation + * space) + * + * The area covered by the memory region must currently be owned by the caller. + * By default, the new region will have access permission set to allow the + * caller to access. + */ +sc_err_t sc_rm_memreg_alloc(sc_ipc_t ipc, sc_rm_mr_t *mr, + sc_faddr_t addr_start, sc_faddr_t addr_end); + +/*! + * This function requests that the SC split a memory region. + * + * @param[in] ipc IPC handle + * @param[in] mr handle of memory region to split + * @param[out] mr_ret return handle for new region; used for + * subsequent function calls + * associated with this region + * @param[in] addr_start start address of region (physical) + * @param[in] addr_end end address of region (physical) + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_PARM if the new memory region is not start/end part of mr, + * - SC_ERR_LOCKED if caller's partition is locked, + * - SC_ERR_PARM if the new memory region spans multiple existing regions, + * - SC_ERR_NOACCESS if caller's partition does not own the memory containing + * the new region, + * - SC_ERR_UNAVAILABLE if memory region table is full (no more allocation + * space) + * + * Note the new region must start or end on the split region. + */ +sc_err_t sc_rm_memreg_split(sc_ipc_t ipc, sc_rm_mr_t mr, + sc_rm_mr_t *mr_ret, sc_faddr_t addr_start, + sc_faddr_t addr_end); + +/*! + * This function frees a memory region. + * + * @param[in] ipc IPC handle + * @param[in] mr handle of memory region to free + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if \a mr out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not a parent of \a mr, + * - SC_ERR_LOCKED if the owning partition of \a mr is locked + */ +sc_err_t sc_rm_memreg_free(sc_ipc_t ipc, sc_rm_mr_t mr); + +/*! + * Internal SC function to find a memory region. + * + * @see sc_rm_find_memreg(). + */ +/*! + * This function finds a memory region. + * + * @param[in] ipc IPC handle + * @param[out] mr return handle for region; used for + * subsequent function calls + * associated with this region + * @param[in] addr_start start address of region to search for + * @param[in] addr_end end address of region to search for + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOTFOUND if region not found, + * + * Searches only for regions owned by the caller. Finds first + * region containing the range specified. + */ +sc_err_t sc_rm_find_memreg(sc_ipc_t ipc, sc_rm_mr_t *mr, + sc_faddr_t addr_start, sc_faddr_t addr_end); + +/*! + * This function assigns ownership of a memory region. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition to which memory region + * should be assigned + * @param[in] mr handle of memory region to assign + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the \a mr owner or parent + * of the owner, + * - SC_ERR_LOCKED if the owning partition or \a pt is locked + */ +sc_err_t sc_rm_assign_memreg(sc_ipc_t ipc, sc_rm_pt_t pt, sc_rm_mr_t mr); + +/*! + * This function sets access permissions for a memory region. + * + * @param[in] ipc IPC handle + * @param[in] mr handle of memory region for which permissions + * should apply + * @param[in] pt handle of partition \a perm should by + * applied for + * @param[in] perm permissions to apply to \a mr for \a pt + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the region owner or parent + * of the owner, + * - SC_ERR_LOCKED if the owning partition is locked + * - SC_ERR_LOCKED if the \a pt is confidential and the caller isn't \a pt + * + * This function configures how the HW isolation will restrict access to a + * memory region based on the attributes of a transaction from bus master. + */ +sc_err_t sc_rm_set_memreg_permissions(sc_ipc_t ipc, sc_rm_mr_t mr, + sc_rm_pt_t pt, sc_rm_perm_t perm); + +/*! + * This function gets ownership status of a memory region. + * + * @param[in] ipc IPC handle + * @param[in] mr handle of memory region to check + * + * @return Returns a boolean (SC_TRUE if caller's partition owns the + * memory region). + * + * If \a mr is out of range then SC_FALSE is returned. + */ +sc_bool_t sc_rm_is_memreg_owned(sc_ipc_t ipc, sc_rm_mr_t mr); + +/*! + * This function is used to obtain info about a memory region. + * + * @param[in] ipc IPC handle + * @param[in] mr handle of memory region to inquire about + * @param[out] addr_start pointer to return start address + * @param[out] addr_end pointer to return end address + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if \a mr is out of range + */ +sc_err_t sc_rm_get_memreg_info(sc_ipc_t ipc, sc_rm_mr_t mr, + sc_faddr_t *addr_start, sc_faddr_t *addr_end); + +/* @} */ + +/*! + * @name Pad Functions + * @{ + */ + +/*! + * This function assigns ownership of a pad to a partition. + * + * @param[in] ipc IPC handle + * @param[in] pt handle of partition to which pad should + * be assigned + * @param[in] pad pad to assign + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_ERR_NOACCESS if caller's partition is restricted, + * - SC_PARM if arguments out of range or invalid, + * - SC_ERR_NOACCESS if caller's partition is not the pad owner or parent + * of the owner, + * - SC_ERR_LOCKED if the owning partition or \a pt is locked + */ +sc_err_t sc_rm_assign_pad(sc_ipc_t ipc, sc_rm_pt_t pt, sc_pad_t pad); + +/*! + * This function flags pads as movable or not. + * + * @param[in] ipc IPC handle + * @param[in] pad_fst first pad for which flag should be set + * @param[in] pad_lst last pad for which flag should be set + * @param[in] movable movable flag (SC_TRUE is movable) + * + * @return Returns an error code (SC_ERR_NONE = success). + * + * Return errors: + * - SC_PARM if pads are out of range, + * - SC_ERR_NOACCESS if caller's partition is not a parent of a pad owner, + * - SC_ERR_LOCKED if the owning partition is locked + * + * This function is used to determine the set of pads that will be + * moved using the sc_rm_move_all() function. All pads are movable + * by default so this function is normally used to prevent a set of + * pads from moving. + */ +sc_err_t sc_rm_set_pad_movable(sc_ipc_t ipc, sc_pad_t pad_fst, + sc_pad_t pad_lst, sc_bool_t movable); + +/*! + * This function gets ownership status of a pad. + * + * @param[in] ipc IPC handle + * @param[in] pad pad to check + * + * @return Returns a boolean (SC_TRUE if caller's partition owns the pad). + * + * If \a pad is out of range then SC_FALSE is returned. + */ +sc_bool_t sc_rm_is_pad_owned(sc_ipc_t ipc, sc_pad_t pad); + +/* @} */ + +/*! + * @name Debug Functions + * @{ + */ + +/*! + * This function dumps the RM state for debug. + * + * @param[in] ipc IPC handle + */ +void sc_rm_dump(sc_ipc_t ipc); + +/* @} */ + +#endif /* SCI_RM_API_H */ + +/**@}*/ |