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arc_core_mpu.h
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/*
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* Copyright (c) 2017 Synopsys.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_ARCH_ARC_V2_MPU_ARC_CORE_MPU_H_
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#define ZEPHYR_INCLUDE_ARCH_ARC_V2_MPU_ARC_CORE_MPU_H_
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/*
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* The defines below represent the region types. The MPU driver is responsible
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* to allocate the region accordingly to the type and set the correct
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* attributes.
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*
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* Each MPU is different and has a different set of attributes, hence instead
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* of having the attributes at this level the arc_mpu_core defines the intent
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* types.
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* An intent type (i.e. THREAD_STACK_GUARD) can correspond to a different set
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* of operations and attributes for each MPU and it is responsibility of the
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* MPU driver to select the correct ones.
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*
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* The intent based configuration can't fail hence at this level no error
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* is returned by the configuration functions.
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* If one of the operations corresponding to an intent fails the error has to
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* be managed inside the MPU driver and not escalated.
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*/
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/* Thread Region Intent Type */
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#define THREAD_STACK_USER_REGION 0x0
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#define THREAD_STACK_REGION 0x1
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#define THREAD_APP_DATA_REGION 0x2
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#define THREAD_STACK_GUARD_REGION 0x3
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#define THREAD_DOMAIN_PARTITION_REGION 0x4
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#if defined(CONFIG_ARC_CORE_MPU)
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/* ARC Core MPU Driver API */
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/*
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* This API has to be implemented by all the MPU drivers that have
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* ARC_CORE_MPU support.
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*/
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void
arc_core_mpu_enable(
void
);
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void
arc_core_mpu_disable(
void
);
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void
arc_core_mpu_configure_thread(
struct
k_thread
*thread);
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/*
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* Before configure the MPU regions, MPU should be disabled
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*/
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void
arc_core_mpu_default(
uint32_t
region_attr);
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int
arc_core_mpu_region(
uint32_t
index,
uint32_t
base,
uint32_t
size,
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uint32_t
region_attr);
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#endif
/* CONFIG_ARC_CORE_MPU */
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#if defined(CONFIG_USERSPACE)
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void
arc_core_mpu_configure_mem_domain
(
struct
k_thread
*thread);
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void
arc_core_mpu_remove_mem_domain
(
struct
k_mem_domain
*mem_domain);
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void
arc_core_mpu_remove_mem_partition
(
struct
k_mem_domain
*domain,
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uint32_t
partition_id);
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int
arc_core_mpu_get_max_domain_partition_regions
(
void
);
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int
arc_core_mpu_buffer_validate
(
const
void
*addr,
size_t
size,
int
write);
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#endif
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void
configure_mpu_thread
(
struct
k_thread
*thread);
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#ifdef __cplusplus
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}
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#endif
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#endif
/* ZEPHYR_INCLUDE_ARCH_ARC_V2_MPU_ARC_CORE_MPU_H_ */
arc_core_mpu_remove_mem_partition
void arc_core_mpu_remove_mem_partition(struct k_mem_domain *domain, uint32_t partition_id)
configure_mpu_thread
void configure_mpu_thread(struct k_thread *thread)
arc_core_mpu_configure_mem_domain
void arc_core_mpu_configure_mem_domain(struct k_thread *thread)
arc_core_mpu_remove_mem_domain
void arc_core_mpu_remove_mem_domain(struct k_mem_domain *mem_domain)
arc_core_mpu_buffer_validate
int arc_core_mpu_buffer_validate(const void *addr, size_t size, int write)
arc_core_mpu_get_max_domain_partition_regions
int arc_core_mpu_get_max_domain_partition_regions(void)
uint32_t
__UINT32_TYPE__ uint32_t
Definition
stdint.h:90
k_mem_domain
Memory Domain.
Definition
mem_domain.h:80
k_thread
Thread Structure.
Definition
thread.h:259
zephyr
arch
arc
v2
mpu
arc_core_mpu.h
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