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Mira
2024-12-07 03:52:01 +06:00
parent 88bffa691d
commit 9e48697f3d
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439
include/cmsis/m-profile/armv7m_cachel1.h Normal file
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/*
* Copyright (c) 2020-2021 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* CMSIS-Core(M) Level 1 Cache API for Armv7-M and later
*/
#ifndef ARM_ARMV7M_CACHEL1_H
#define ARM_ARMV7M_CACHEL1_H
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
/**
\ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_CacheFunctions Cache Functions
\brief Functions that configure Instruction and Data cache.
@{
*/
/* Cache Size ID Register Macros */
#define CCSIDR_WAYS(x) (((x) & SCB_CCSIDR_ASSOCIATIVITY_Msk) >> SCB_CCSIDR_ASSOCIATIVITY_Pos)
#define CCSIDR_SETS(x) (((x) & SCB_CCSIDR_NUMSETS_Msk ) >> SCB_CCSIDR_NUMSETS_Pos )
#ifndef __SCB_DCACHE_LINE_SIZE
#define __SCB_DCACHE_LINE_SIZE 32U /*!< Cortex-M7 cache line size is fixed to 32 bytes (8 words). See also register SCB_CCSIDR */
#endif
#ifndef __SCB_ICACHE_LINE_SIZE
#define __SCB_ICACHE_LINE_SIZE 32U /*!< Cortex-M7 cache line size is fixed to 32 bytes (8 words). See also register SCB_CCSIDR */
#endif
/**
\brief Enable I-Cache
\details Turns on I-Cache
*/
__STATIC_FORCEINLINE void SCB_EnableICache (void)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
if (SCB->CCR & SCB_CCR_IC_Msk) return; /* return if ICache is already enabled */
__DSB();
__ISB();
SCB->ICIALLU = 0UL; /* invalidate I-Cache */
__DSB();
__ISB();
SCB->CCR |= (uint32_t)SCB_CCR_IC_Msk; /* enable I-Cache */
__DSB();
__ISB();
#endif
}
/**
\brief Disable I-Cache
\details Turns off I-Cache
*/
__STATIC_FORCEINLINE void SCB_DisableICache (void)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
__DSB();
__ISB();
SCB->CCR &= ~(uint32_t)SCB_CCR_IC_Msk; /* disable I-Cache */
SCB->ICIALLU = 0UL; /* invalidate I-Cache */
__DSB();
__ISB();
#endif
}
/**
\brief Invalidate I-Cache
\details Invalidates I-Cache
*/
__STATIC_FORCEINLINE void SCB_InvalidateICache (void)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
__DSB();
__ISB();
SCB->ICIALLU = 0UL;
__DSB();
__ISB();
#endif
}
/**
\brief I-Cache Invalidate by address
\details Invalidates I-Cache for the given address.
I-Cache is invalidated starting from a 32 byte aligned address in 32 byte granularity.
I-Cache memory blocks which are part of given address + given size are invalidated.
\param[in] addr address
\param[in] isize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_InvalidateICache_by_Addr (volatile void *addr, int32_t isize)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
if ( isize > 0 ) {
int32_t op_size = isize + (((uint32_t)addr) & (__SCB_ICACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_ICACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->ICIMVAU = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_ICACHE_LINE_SIZE;
op_size -= __SCB_ICACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/**
\brief Enable D-Cache
\details Turns on D-Cache
*/
__STATIC_FORCEINLINE void SCB_EnableDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
if (SCB->CCR & SCB_CCR_DC_Msk) return; /* return if DCache is already enabled */
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCISW = (((sets << SCB_DCISW_SET_Pos) & SCB_DCISW_SET_Msk) |
((ways << SCB_DCISW_WAY_Pos) & SCB_DCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
SCB->CCR |= (uint32_t)SCB_CCR_DC_Msk; /* enable D-Cache */
__DSB();
__ISB();
#endif
}
/**
\brief Disable D-Cache
\details Turns off D-Cache
*/
__STATIC_FORCEINLINE void SCB_DisableDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
struct {
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
} locals
#if ((defined(__GNUC__) || defined(__clang__)) && !defined(__OPTIMIZE__))
__ALIGNED(__SCB_DCACHE_LINE_SIZE)
#endif
;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
SCB->CCR &= ~(uint32_t)SCB_CCR_DC_Msk; /* disable D-Cache */
__DSB();
#if !defined(__OPTIMIZE__)
/*
* For the endless loop issue with no optimization builds.
* More details, see https://github.com/ARM-software/CMSIS_5/issues/620
*
* The issue only happens when local variables are in stack. If
* local variables are saved in general purpose register, then the function
* is OK.
*
* When local variables are in stack, after disabling the cache, flush the
* local variables cache line for data consistency.
*/
/* Clean and invalidate the local variable cache. */
#if defined(__ICCARM__)
/* As we can't align the stack to the cache line size, invalidate each of the variables */
SCB->DCCIMVAC = (uint32_t)&locals.sets;
SCB->DCCIMVAC = (uint32_t)&locals.ways;
SCB->DCCIMVAC = (uint32_t)&locals.ccsidr;
#else
SCB->DCCIMVAC = (uint32_t)&locals;
#endif
__DSB();
__ISB();
#endif
locals.ccsidr = SCB->CCSIDR;
/* clean & invalidate D-Cache */
locals.sets = (uint32_t)(CCSIDR_SETS(locals.ccsidr));
do {
locals.ways = (uint32_t)(CCSIDR_WAYS(locals.ccsidr));
do {
SCB->DCCISW = (((locals.sets << SCB_DCCISW_SET_Pos) & SCB_DCCISW_SET_Msk) |
((locals.ways << SCB_DCCISW_WAY_Pos) & SCB_DCCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (locals.ways-- != 0U);
} while(locals.sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief Invalidate D-Cache
\details Invalidates D-Cache
*/
__STATIC_FORCEINLINE void SCB_InvalidateDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCISW = (((sets << SCB_DCISW_SET_Pos) & SCB_DCISW_SET_Msk) |
((ways << SCB_DCISW_WAY_Pos) & SCB_DCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief Clean D-Cache
\details Cleans D-Cache
*/
__STATIC_FORCEINLINE void SCB_CleanDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* clean D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCCSW = (((sets << SCB_DCCSW_SET_Pos) & SCB_DCCSW_SET_Msk) |
((ways << SCB_DCCSW_WAY_Pos) & SCB_DCCSW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief Clean & Invalidate D-Cache
\details Cleans and Invalidates D-Cache
*/
__STATIC_FORCEINLINE void SCB_CleanInvalidateDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* clean & invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCCISW = (((sets << SCB_DCCISW_SET_Pos) & SCB_DCCISW_SET_Msk) |
((ways << SCB_DCCISW_WAY_Pos) & SCB_DCCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief D-Cache Invalidate by address
\details Invalidates D-Cache for the given address.
D-Cache is invalidated starting from a 32 byte aligned address in 32 byte granularity.
D-Cache memory blocks which are part of given address + given size are invalidated.
\param[in] addr address
\param[in] dsize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_InvalidateDCache_by_Addr (volatile void *addr, int32_t dsize)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
if ( dsize > 0 ) {
int32_t op_size = dsize + (((uint32_t)addr) & (__SCB_DCACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_DCACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->DCIMVAC = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_DCACHE_LINE_SIZE;
op_size -= __SCB_DCACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/**
\brief D-Cache Clean by address
\details Cleans D-Cache for the given address
D-Cache is cleaned starting from a 32 byte aligned address in 32 byte granularity.
D-Cache memory blocks which are part of given address + given size are cleaned.
\param[in] addr address
\param[in] dsize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_CleanDCache_by_Addr (volatile void *addr, int32_t dsize)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
if ( dsize > 0 ) {
int32_t op_size = dsize + (((uint32_t)addr) & (__SCB_DCACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_DCACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->DCCMVAC = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_DCACHE_LINE_SIZE;
op_size -= __SCB_DCACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/**
\brief D-Cache Clean and Invalidate by address
\details Cleans and invalidates D_Cache for the given address
D-Cache is cleaned and invalidated starting from a 32 byte aligned address in 32 byte granularity.
D-Cache memory blocks which are part of given address + given size are cleaned and invalidated.
\param[in] addr address (aligned to 32-byte boundary)
\param[in] dsize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_CleanInvalidateDCache_by_Addr (volatile void *addr, int32_t dsize)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
if ( dsize > 0 ) {
int32_t op_size = dsize + (((uint32_t)addr) & (__SCB_DCACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_DCACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->DCCIMVAC = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_DCACHE_LINE_SIZE;
op_size -= __SCB_DCACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/*@} end of CMSIS_Core_CacheFunctions */
#endif /* ARM_ARMV7M_CACHEL1_H */

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/*
* Copyright (c) 2017-2020 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* CMSIS-Core(M) MPU API for Armv7-M MPU
*/
#ifndef ARM_MPU_ARMV7_H
#define ARM_MPU_ARMV7_H
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
#define ARM_MPU_REGION_SIZE_32B ((uint8_t)0x04U) ///!< MPU Region Size 32 Bytes
#define ARM_MPU_REGION_SIZE_64B ((uint8_t)0x05U) ///!< MPU Region Size 64 Bytes
#define ARM_MPU_REGION_SIZE_128B ((uint8_t)0x06U) ///!< MPU Region Size 128 Bytes
#define ARM_MPU_REGION_SIZE_256B ((uint8_t)0x07U) ///!< MPU Region Size 256 Bytes
#define ARM_MPU_REGION_SIZE_512B ((uint8_t)0x08U) ///!< MPU Region Size 512 Bytes
#define ARM_MPU_REGION_SIZE_1KB ((uint8_t)0x09U) ///!< MPU Region Size 1 KByte
#define ARM_MPU_REGION_SIZE_2KB ((uint8_t)0x0AU) ///!< MPU Region Size 2 KBytes
#define ARM_MPU_REGION_SIZE_4KB ((uint8_t)0x0BU) ///!< MPU Region Size 4 KBytes
#define ARM_MPU_REGION_SIZE_8KB ((uint8_t)0x0CU) ///!< MPU Region Size 8 KBytes
#define ARM_MPU_REGION_SIZE_16KB ((uint8_t)0x0DU) ///!< MPU Region Size 16 KBytes
#define ARM_MPU_REGION_SIZE_32KB ((uint8_t)0x0EU) ///!< MPU Region Size 32 KBytes
#define ARM_MPU_REGION_SIZE_64KB ((uint8_t)0x0FU) ///!< MPU Region Size 64 KBytes
#define ARM_MPU_REGION_SIZE_128KB ((uint8_t)0x10U) ///!< MPU Region Size 128 KBytes
#define ARM_MPU_REGION_SIZE_256KB ((uint8_t)0x11U) ///!< MPU Region Size 256 KBytes
#define ARM_MPU_REGION_SIZE_512KB ((uint8_t)0x12U) ///!< MPU Region Size 512 KBytes
#define ARM_MPU_REGION_SIZE_1MB ((uint8_t)0x13U) ///!< MPU Region Size 1 MByte
#define ARM_MPU_REGION_SIZE_2MB ((uint8_t)0x14U) ///!< MPU Region Size 2 MBytes
#define ARM_MPU_REGION_SIZE_4MB ((uint8_t)0x15U) ///!< MPU Region Size 4 MBytes
#define ARM_MPU_REGION_SIZE_8MB ((uint8_t)0x16U) ///!< MPU Region Size 8 MBytes
#define ARM_MPU_REGION_SIZE_16MB ((uint8_t)0x17U) ///!< MPU Region Size 16 MBytes
#define ARM_MPU_REGION_SIZE_32MB ((uint8_t)0x18U) ///!< MPU Region Size 32 MBytes
#define ARM_MPU_REGION_SIZE_64MB ((uint8_t)0x19U) ///!< MPU Region Size 64 MBytes
#define ARM_MPU_REGION_SIZE_128MB ((uint8_t)0x1AU) ///!< MPU Region Size 128 MBytes
#define ARM_MPU_REGION_SIZE_256MB ((uint8_t)0x1BU) ///!< MPU Region Size 256 MBytes
#define ARM_MPU_REGION_SIZE_512MB ((uint8_t)0x1CU) ///!< MPU Region Size 512 MBytes
#define ARM_MPU_REGION_SIZE_1GB ((uint8_t)0x1DU) ///!< MPU Region Size 1 GByte
#define ARM_MPU_REGION_SIZE_2GB ((uint8_t)0x1EU) ///!< MPU Region Size 2 GBytes
#define ARM_MPU_REGION_SIZE_4GB ((uint8_t)0x1FU) ///!< MPU Region Size 4 GBytes
#define ARM_MPU_AP_NONE 0U ///!< MPU Access Permission no access
#define ARM_MPU_AP_PRIV 1U ///!< MPU Access Permission privileged access only
#define ARM_MPU_AP_URO 2U ///!< MPU Access Permission unprivileged access read-only
#define ARM_MPU_AP_FULL 3U ///!< MPU Access Permission full access
#define ARM_MPU_AP_PRO 5U ///!< MPU Access Permission privileged access read-only
#define ARM_MPU_AP_RO 6U ///!< MPU Access Permission read-only access
/** MPU Region Base Address Register Value
*
* \param Region The region to be configured, number 0 to 15.
* \param BaseAddress The base address for the region.
*/
#define ARM_MPU_RBAR(Region, BaseAddress) \
(((BaseAddress) & MPU_RBAR_ADDR_Msk) | \
((Region) & MPU_RBAR_REGION_Msk) | \
(MPU_RBAR_VALID_Msk))
/**
* MPU Memory Access Attributes
*
* \param TypeExtField Type extension field, allows you to configure memory access type, for example strongly ordered, peripheral.
* \param IsShareable Region is shareable between multiple bus masters.
* \param IsCacheable Region is cacheable, i.e. its value may be kept in cache.
* \param IsBufferable Region is bufferable, i.e. using write-back caching. Cacheable but non-bufferable regions use write-through policy.
*/
#define ARM_MPU_ACCESS_(TypeExtField, IsShareable, IsCacheable, IsBufferable) \
((((TypeExtField) << MPU_RASR_TEX_Pos) & MPU_RASR_TEX_Msk) | \
(((IsShareable) << MPU_RASR_S_Pos) & MPU_RASR_S_Msk) | \
(((IsCacheable) << MPU_RASR_C_Pos) & MPU_RASR_C_Msk) | \
(((IsBufferable) << MPU_RASR_B_Pos) & MPU_RASR_B_Msk))
/**
* MPU Region Attribute and Size Register Value
*
* \param DisableExec Instruction access disable bit, 1= disable instruction fetches.
* \param AccessPermission Data access permissions, allows you to configure read/write access for User and Privileged mode.
* \param AccessAttributes Memory access attribution, see \ref ARM_MPU_ACCESS_.
* \param SubRegionDisable Sub-region disable field.
* \param Size Region size of the region to be configured, for example 4K, 8K.
*/
#define ARM_MPU_RASR_EX(DisableExec, AccessPermission, AccessAttributes, SubRegionDisable, Size) \
((((DisableExec) << MPU_RASR_XN_Pos) & MPU_RASR_XN_Msk) | \
(((AccessPermission) << MPU_RASR_AP_Pos) & MPU_RASR_AP_Msk) | \
(((AccessAttributes) & (MPU_RASR_TEX_Msk | MPU_RASR_S_Msk | MPU_RASR_C_Msk | MPU_RASR_B_Msk))) | \
(((SubRegionDisable) << MPU_RASR_SRD_Pos) & MPU_RASR_SRD_Msk) | \
(((Size) << MPU_RASR_SIZE_Pos) & MPU_RASR_SIZE_Msk) | \
(((MPU_RASR_ENABLE_Msk))))
/**
* MPU Region Attribute and Size Register Value
*
* \param DisableExec Instruction access disable bit, 1= disable instruction fetches.
* \param AccessPermission Data access permissions, allows you to configure read/write access for User and Privileged mode.
* \param TypeExtField Type extension field, allows you to configure memory access type, for example strongly ordered, peripheral.
* \param IsShareable Region is shareable between multiple bus masters.
* \param IsCacheable Region is cacheable, i.e. its value may be kept in cache.
* \param IsBufferable Region is bufferable, i.e. using write-back caching. Cacheable but non-bufferable regions use write-through policy.
* \param SubRegionDisable Sub-region disable field.
* \param Size Region size of the region to be configured, for example 4K, 8K.
*/
#define ARM_MPU_RASR(DisableExec, AccessPermission, TypeExtField, IsShareable, IsCacheable, IsBufferable, SubRegionDisable, Size) \
ARM_MPU_RASR_EX(DisableExec, AccessPermission, ARM_MPU_ACCESS_(TypeExtField, IsShareable, IsCacheable, IsBufferable), SubRegionDisable, Size)
/**
* MPU Memory Access Attribute for strongly ordered memory.
* - TEX: 000b
* - Shareable
* - Non-cacheable
* - Non-bufferable
*/
#define ARM_MPU_ACCESS_ORDERED ARM_MPU_ACCESS_(0U, 1U, 0U, 0U)
/**
* MPU Memory Access Attribute for device memory.
* - TEX: 000b (if shareable) or 010b (if non-shareable)
* - Shareable or non-shareable
* - Non-cacheable
* - Bufferable (if shareable) or non-bufferable (if non-shareable)
*
* \param IsShareable Configures the device memory as shareable or non-shareable.
*/
#define ARM_MPU_ACCESS_DEVICE(IsShareable) ((IsShareable) ? ARM_MPU_ACCESS_(0U, 1U, 0U, 1U) : ARM_MPU_ACCESS_(2U, 0U, 0U, 0U))
/**
* MPU Memory Access Attribute for normal memory.
* - TEX: 1BBb (reflecting outer cacheability rules)
* - Shareable or non-shareable
* - Cacheable or non-cacheable (reflecting inner cacheability rules)
* - Bufferable or non-bufferable (reflecting inner cacheability rules)
*
* \param OuterCp Configures the outer cache policy.
* \param InnerCp Configures the inner cache policy.
* \param IsShareable Configures the memory as shareable or non-shareable.
*/
#define ARM_MPU_ACCESS_NORMAL(OuterCp, InnerCp, IsShareable) ARM_MPU_ACCESS_((4U | (OuterCp)), IsShareable, ((InnerCp) >> 1U), ((InnerCp) & 1U))
/**
* MPU Memory Access Attribute non-cacheable policy.
*/
#define ARM_MPU_CACHEP_NOCACHE 0U
/**
* MPU Memory Access Attribute write-back, write and read allocate policy.
*/
#define ARM_MPU_CACHEP_WB_WRA 1U
/**
* MPU Memory Access Attribute write-through, no write allocate policy.
*/
#define ARM_MPU_CACHEP_WT_NWA 2U
/**
* MPU Memory Access Attribute write-back, no write allocate policy.
*/
#define ARM_MPU_CACHEP_WB_NWA 3U
/**
* Struct for a single MPU Region
*/
typedef struct {
uint32_t RBAR; //!< The region base address register value (RBAR)
uint32_t RASR; //!< The region attribute and size register value (RASR) \ref MPU_RASR
} ARM_MPU_Region_t;
/** Enable the MPU.
* \param MPU_Control Default access permissions for unconfigured regions.
*/
__STATIC_INLINE void ARM_MPU_Enable(uint32_t MPU_Control)
{
__DMB();
MPU->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk;
#ifdef SCB_SHCSR_MEMFAULTENA_Msk
SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
#endif
__DSB();
__ISB();
}
/** Disable the MPU.
*/
__STATIC_INLINE void ARM_MPU_Disable(void)
{
__DMB();
#ifdef SCB_SHCSR_MEMFAULTENA_Msk
SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
#endif
MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk;
__DSB();
__ISB();
}
/** Clear and disable the given MPU region.
* \param rnr Region number to be cleared.
*/
__STATIC_INLINE void ARM_MPU_ClrRegion(uint32_t rnr)
{
MPU->RNR = rnr;
MPU->RASR = 0U;
}
/** Configure an MPU region.
* \param rbar Value for RBAR register.
* \param rasr Value for RASR register.
*/
__STATIC_INLINE void ARM_MPU_SetRegion(uint32_t rbar, uint32_t rasr)
{
MPU->RBAR = rbar;
MPU->RASR = rasr;
}
/** Configure the given MPU region.
* \param rnr Region number to be configured.
* \param rbar Value for RBAR register.
* \param rasr Value for RASR register.
*/
__STATIC_INLINE void ARM_MPU_SetRegionEx(uint32_t rnr, uint32_t rbar, uint32_t rasr)
{
MPU->RNR = rnr;
MPU->RBAR = rbar;
MPU->RASR = rasr;
}
/** Memcpy with strictly ordered memory access, e.g. used by code in ARM_MPU_Load().
* \param dst Destination data is copied to.
* \param src Source data is copied from.
* \param len Amount of data words to be copied.
*/
__STATIC_INLINE void ARM_MPU_OrderedMemcpy(volatile uint32_t* dst, const uint32_t* __RESTRICT src, uint32_t len)
{
uint32_t i;
for (i = 0U; i < len; ++i)
{
dst[i] = src[i];
}
}
/** Load the given number of MPU regions from a table.
* \param table Pointer to the MPU configuration table.
* \param cnt Amount of regions to be configured.
*/
__STATIC_INLINE void ARM_MPU_Load(ARM_MPU_Region_t const* table, uint32_t cnt)
{
const uint32_t rowWordSize = sizeof(ARM_MPU_Region_t)/4U;
while (cnt > MPU_TYPE_RALIASES) {
ARM_MPU_OrderedMemcpy(&(MPU->RBAR), &(table->RBAR), MPU_TYPE_RALIASES*rowWordSize);
table += MPU_TYPE_RALIASES;
cnt -= MPU_TYPE_RALIASES;
}
ARM_MPU_OrderedMemcpy(&(MPU->RBAR), &(table->RBAR), cnt*rowWordSize);
}
#endif

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include/cmsis/m-profile/cmsis_gcc_m.h Normal file
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@@ -0,0 +1,716 @@
/*
* Copyright (c) 2009-2023 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* CMSIS-Core(M) Compiler GCC Header File
*/
#ifndef __CMSIS_GCC_M_H
#define __CMSIS_GCC_M_H
#ifndef __CMSIS_GCC_H
#error "This file must not be included directly"
#endif
#include <arm_acle.h>
/* ######################### Startup and Lowlevel Init ######################## */
#ifndef __PROGRAM_START
/**
\brief Initializes data and bss sections
\details This default implementations initialized all data and additional bss
sections relying on .copy.table and .zero.table specified properly
in the used linker script.
*/
__STATIC_FORCEINLINE __NO_RETURN void __cmsis_start(void)
{
extern void _start(void) __NO_RETURN;
typedef struct __copy_table {
uint32_t const* src;
uint32_t* dest;
uint32_t wlen;
} __copy_table_t;
typedef struct __zero_table {
uint32_t* dest;
uint32_t wlen;
} __zero_table_t;
extern const __copy_table_t __copy_table_start__;
extern const __copy_table_t __copy_table_end__;
extern const __zero_table_t __zero_table_start__;
extern const __zero_table_t __zero_table_end__;
for (__copy_table_t const* pTable = &__copy_table_start__; pTable < &__copy_table_end__; ++pTable) {
for(uint32_t i=0u; i<pTable->wlen; ++i) {
pTable->dest[i] = pTable->src[i];
}
}
for (__zero_table_t const* pTable = &__zero_table_start__; pTable < &__zero_table_end__; ++pTable) {
for(uint32_t i=0u; i<pTable->wlen; ++i) {
pTable->dest[i] = 0u;
}
}
_start();
}
#define __PROGRAM_START __cmsis_start
#endif
#ifndef __INITIAL_SP
#define __INITIAL_SP __StackTop
#endif
#ifndef __STACK_LIMIT
#define __STACK_LIMIT __StackLimit
#endif
#ifndef __VECTOR_TABLE
#define __VECTOR_TABLE __Vectors
#endif
#ifndef __VECTOR_TABLE_ATTRIBUTE
#define __VECTOR_TABLE_ATTRIBUTE __attribute__((used, section(".vectors")))
#endif
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
#ifndef __STACK_SEAL
#define __STACK_SEAL __StackSeal
#endif
#ifndef __TZ_STACK_SEAL_SIZE
#define __TZ_STACK_SEAL_SIZE 8U
#endif
#ifndef __TZ_STACK_SEAL_VALUE
#define __TZ_STACK_SEAL_VALUE 0xFEF5EDA5FEF5EDA5ULL
#endif
__STATIC_FORCEINLINE void __TZ_set_STACKSEAL_S (uint32_t* stackTop)
{
*((uint64_t *)stackTop) = __TZ_STACK_SEAL_VALUE;
}
#endif
/* ########################### Core Function Access ########################### */
/** \ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_RegAccFunctions CMSIS Core Register Access Functions
@{
*/
/**
\brief Get Control Register
\details Returns the content of the Control Register.
\return Control Register value
*/
__STATIC_FORCEINLINE uint32_t __get_CONTROL(void)
{
uint32_t result;
__ASM volatile ("MRS %0, control" : "=r" (result) );
return (result);
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Control Register (non-secure)
\details Returns the content of the non-secure Control Register when in secure mode.
\return non-secure Control Register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_CONTROL_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, control_ns" : "=r" (result) );
return (result);
}
#endif
/**
\brief Set Control Register
\details Writes the given value to the Control Register.
\param [in] control Control Register value to set
*/
__STATIC_FORCEINLINE void __set_CONTROL(uint32_t control)
{
__ASM volatile ("MSR control, %0" : : "r" (control) : "memory");
__ISB();
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Control Register (non-secure)
\details Writes the given value to the non-secure Control Register when in secure state.
\param [in] control Control Register value to set
*/
__STATIC_FORCEINLINE void __TZ_set_CONTROL_NS(uint32_t control)
{
__ASM volatile ("MSR control_ns, %0" : : "r" (control) : "memory");
__ISB();
}
#endif
/**
\brief Get IPSR Register
\details Returns the content of the IPSR Register.
\return IPSR Register value
*/
__STATIC_FORCEINLINE uint32_t __get_IPSR(void)
{
uint32_t result;
__ASM volatile ("MRS %0, ipsr" : "=r" (result) );
return (result);
}
/**
\brief Get APSR Register
\details Returns the content of the APSR Register.
\return APSR Register value
*/
__STATIC_FORCEINLINE uint32_t __get_APSR(void)
{
uint32_t result;
__ASM volatile ("MRS %0, apsr" : "=r" (result) );
return (result);
}
/**
\brief Get xPSR Register
\details Returns the content of the xPSR Register.
\return xPSR Register value
*/
__STATIC_FORCEINLINE uint32_t __get_xPSR(void)
{
uint32_t result;
__ASM volatile ("MRS %0, xpsr" : "=r" (result) );
return (result);
}
/**
\brief Get Process Stack Pointer
\details Returns the current value of the Process Stack Pointer (PSP).
\return PSP Register value
*/
__STATIC_FORCEINLINE uint32_t __get_PSP(void)
{
uint32_t result;
__ASM volatile ("MRS %0, psp" : "=r" (result) );
return (result);
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Process Stack Pointer (non-secure)
\details Returns the current value of the non-secure Process Stack Pointer (PSP) when in secure state.
\return PSP Register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_PSP_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, psp_ns" : "=r" (result) );
return (result);
}
#endif
/**
\brief Set Process Stack Pointer
\details Assigns the given value to the Process Stack Pointer (PSP).
\param [in] topOfProcStack Process Stack Pointer value to set
*/
__STATIC_FORCEINLINE void __set_PSP(uint32_t topOfProcStack)
{
__ASM volatile ("MSR psp, %0" : : "r" (topOfProcStack) : );
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Process Stack Pointer (non-secure)
\details Assigns the given value to the non-secure Process Stack Pointer (PSP) when in secure state.
\param [in] topOfProcStack Process Stack Pointer value to set
*/
__STATIC_FORCEINLINE void __TZ_set_PSP_NS(uint32_t topOfProcStack)
{
__ASM volatile ("MSR psp_ns, %0" : : "r" (topOfProcStack) : );
}
#endif
/**
\brief Get Main Stack Pointer
\details Returns the current value of the Main Stack Pointer (MSP).
\return MSP Register value
*/
__STATIC_FORCEINLINE uint32_t __get_MSP(void)
{
uint32_t result;
__ASM volatile ("MRS %0, msp" : "=r" (result) );
return (result);
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Main Stack Pointer (non-secure)
\details Returns the current value of the non-secure Main Stack Pointer (MSP) when in secure state.
\return MSP Register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_MSP_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, msp_ns" : "=r" (result) );
return (result);
}
#endif
/**
\brief Set Main Stack Pointer
\details Assigns the given value to the Main Stack Pointer (MSP).
\param [in] topOfMainStack Main Stack Pointer value to set
*/
__STATIC_FORCEINLINE void __set_MSP(uint32_t topOfMainStack)
{
__ASM volatile ("MSR msp, %0" : : "r" (topOfMainStack) : );
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Main Stack Pointer (non-secure)
\details Assigns the given value to the non-secure Main Stack Pointer (MSP) when in secure state.
\param [in] topOfMainStack Main Stack Pointer value to set
*/
__STATIC_FORCEINLINE void __TZ_set_MSP_NS(uint32_t topOfMainStack)
{
__ASM volatile ("MSR msp_ns, %0" : : "r" (topOfMainStack) : );
}
#endif
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Stack Pointer (non-secure)
\details Returns the current value of the non-secure Stack Pointer (SP) when in secure state.
\return SP Register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_SP_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, sp_ns" : "=r" (result) );
return (result);
}
/**
\brief Set Stack Pointer (non-secure)
\details Assigns the given value to the non-secure Stack Pointer (SP) when in secure state.
\param [in] topOfStack Stack Pointer value to set
*/
__STATIC_FORCEINLINE void __TZ_set_SP_NS(uint32_t topOfStack)
{
__ASM volatile ("MSR sp_ns, %0" : : "r" (topOfStack) : );
}
#endif
/**
\brief Get Priority Mask
\details Returns the current state of the priority mask bit from the Priority Mask Register.
\return Priority Mask value
*/
__STATIC_FORCEINLINE uint32_t __get_PRIMASK(void)
{
uint32_t result;
__ASM volatile ("MRS %0, primask" : "=r" (result) );
return (result);
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Priority Mask (non-secure)
\details Returns the current state of the non-secure priority mask bit from the Priority Mask Register when in secure state.
\return Priority Mask value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_PRIMASK_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, primask_ns" : "=r" (result) );
return (result);
}
#endif
/**
\brief Set Priority Mask
\details Assigns the given value to the Priority Mask Register.
\param [in] priMask Priority Mask
*/
__STATIC_FORCEINLINE void __set_PRIMASK(uint32_t priMask)
{
__ASM volatile ("MSR primask, %0" : : "r" (priMask) : "memory");
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Priority Mask (non-secure)
\details Assigns the given value to the non-secure Priority Mask Register when in secure state.
\param [in] priMask Priority Mask
*/
__STATIC_FORCEINLINE void __TZ_set_PRIMASK_NS(uint32_t priMask)
{
__ASM volatile ("MSR primask_ns, %0" : : "r" (priMask) : "memory");
}
#endif
#if (__ARM_ARCH_ISA_THUMB >= 2)
/**
\brief Get Base Priority
\details Returns the current value of the Base Priority register.
\return Base Priority register value
*/
__STATIC_FORCEINLINE uint32_t __get_BASEPRI(void)
{
uint32_t result;
__ASM volatile ("MRS %0, basepri" : "=r" (result) );
return (result);
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Base Priority (non-secure)
\details Returns the current value of the non-secure Base Priority register when in secure state.
\return Base Priority register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_BASEPRI_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, basepri_ns" : "=r" (result) );
return (result);
}
#endif
/**
\brief Set Base Priority
\details Assigns the given value to the Base Priority register.
\param [in] basePri Base Priority value to set
*/
__STATIC_FORCEINLINE void __set_BASEPRI(uint32_t basePri)
{
__ASM volatile ("MSR basepri, %0" : : "r" (basePri) : "memory");
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Base Priority (non-secure)
\details Assigns the given value to the non-secure Base Priority register when in secure state.
\param [in] basePri Base Priority value to set
*/
__STATIC_FORCEINLINE void __TZ_set_BASEPRI_NS(uint32_t basePri)
{
__ASM volatile ("MSR basepri_ns, %0" : : "r" (basePri) : "memory");
}
#endif
/**
\brief Set Base Priority with condition
\details Assigns the given value to the Base Priority register only if BASEPRI masking is disabled,
or the new value increases the BASEPRI priority level.
\param [in] basePri Base Priority value to set
*/
__STATIC_FORCEINLINE void __set_BASEPRI_MAX(uint32_t basePri)
{
__ASM volatile ("MSR basepri_max, %0" : : "r" (basePri) : "memory");
}
/**
\brief Get Fault Mask
\details Returns the current value of the Fault Mask register.
\return Fault Mask register value
*/
__STATIC_FORCEINLINE uint32_t __get_FAULTMASK(void)
{
uint32_t result;
__ASM volatile ("MRS %0, faultmask" : "=r" (result) );
return (result);
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Fault Mask (non-secure)
\details Returns the current value of the non-secure Fault Mask register when in secure state.
\return Fault Mask register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_FAULTMASK_NS(void)
{
uint32_t result;
__ASM volatile ("MRS %0, faultmask_ns" : "=r" (result) );
return (result);
}
#endif
/**
\brief Set Fault Mask
\details Assigns the given value to the Fault Mask register.
\param [in] faultMask Fault Mask value to set
*/
__STATIC_FORCEINLINE void __set_FAULTMASK(uint32_t faultMask)
{
__ASM volatile ("MSR faultmask, %0" : : "r" (faultMask) : "memory");
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Fault Mask (non-secure)
\details Assigns the given value to the non-secure Fault Mask register when in secure state.
\param [in] faultMask Fault Mask value to set
*/
__STATIC_FORCEINLINE void __TZ_set_FAULTMASK_NS(uint32_t faultMask)
{
__ASM volatile ("MSR faultmask_ns, %0" : : "r" (faultMask) : "memory");
}
#endif
#endif /* (__ARM_ARCH_ISA_THUMB >= 2) */
#if (__ARM_ARCH >= 8)
/**
\brief Get Process Stack Pointer Limit
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence zero is returned always in non-secure
mode.
\details Returns the current value of the Process Stack Pointer Limit (PSPLIM).
\return PSPLIM Register value
*/
__STATIC_FORCEINLINE uint32_t __get_PSPLIM(void)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)) && \
(!defined (__ARM_FEATURE_CMSE ) || (__ARM_FEATURE_CMSE < 3)))
/* without main extensions, the non-secure PSPLIM is RAZ/WI */
return (0U);
#else
uint32_t result;
__ASM volatile ("MRS %0, psplim" : "=r" (result) );
return (result);
#endif
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Process Stack Pointer Limit (non-secure)
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence zero is returned always.
\details Returns the current value of the non-secure Process Stack Pointer Limit (PSPLIM) when in secure state.
\return PSPLIM Register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_PSPLIM_NS(void)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)))
/* without main extensions, the non-secure PSPLIM is RAZ/WI */
return (0U);
#else
uint32_t result;
__ASM volatile ("MRS %0, psplim_ns" : "=r" (result) );
return (result);
#endif
}
#endif
/**
\brief Set Process Stack Pointer Limit
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence the write is silently ignored in non-secure
mode.
\details Assigns the given value to the Process Stack Pointer Limit (PSPLIM).
\param [in] ProcStackPtrLimit Process Stack Pointer Limit value to set
*/
__STATIC_FORCEINLINE void __set_PSPLIM(uint32_t ProcStackPtrLimit)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)) && \
(!defined (__ARM_FEATURE_CMSE ) || (__ARM_FEATURE_CMSE < 3)))
/* without main extensions, the non-secure PSPLIM is RAZ/WI */
(void)ProcStackPtrLimit;
#else
__ASM volatile ("MSR psplim, %0" : : "r" (ProcStackPtrLimit));
#endif
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Process Stack Pointer (non-secure)
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence the write is silently ignored.
\details Assigns the given value to the non-secure Process Stack Pointer Limit (PSPLIM) when in secure state.
\param [in] ProcStackPtrLimit Process Stack Pointer Limit value to set
*/
__STATIC_FORCEINLINE void __TZ_set_PSPLIM_NS(uint32_t ProcStackPtrLimit)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)))
/* without main extensions, the non-secure PSPLIM is RAZ/WI */
(void)ProcStackPtrLimit;
#else
__ASM volatile ("MSR psplim_ns, %0\n" : : "r" (ProcStackPtrLimit));
#endif
}
#endif
/**
\brief Get Main Stack Pointer Limit
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence zero is returned always.
\details Returns the current value of the Main Stack Pointer Limit (MSPLIM).
\return MSPLIM Register value
*/
__STATIC_FORCEINLINE uint32_t __get_MSPLIM(void)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)) && \
(!defined (__ARM_FEATURE_CMSE ) || (__ARM_FEATURE_CMSE < 3)))
/* without main extensions, the non-secure MSPLIM is RAZ/WI */
return (0U);
#else
uint32_t result;
__ASM volatile ("MRS %0, msplim" : "=r" (result) );
return (result);
#endif
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Get Main Stack Pointer Limit (non-secure)
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence zero is returned always.
\details Returns the current value of the non-secure Main Stack Pointer Limit(MSPLIM) when in secure state.
\return MSPLIM Register value
*/
__STATIC_FORCEINLINE uint32_t __TZ_get_MSPLIM_NS(void)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)))
/* without main extensions, the non-secure MSPLIM is RAZ/WI */
return (0U);
#else
uint32_t result;
__ASM volatile ("MRS %0, msplim_ns" : "=r" (result) );
return (result);
#endif
}
#endif
/**
\brief Set Main Stack Pointer Limit
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence the write is silently ignored.
\details Assigns the given value to the Main Stack Pointer Limit (MSPLIM).
\param [in] MainStackPtrLimit Main Stack Pointer Limit value to set
*/
__STATIC_FORCEINLINE void __set_MSPLIM(uint32_t MainStackPtrLimit)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)) && \
(!defined (__ARM_FEATURE_CMSE ) || (__ARM_FEATURE_CMSE < 3)))
/* without main extensions, the non-secure MSPLIM is RAZ/WI */
(void)MainStackPtrLimit;
#else
__ASM volatile ("MSR msplim, %0" : : "r" (MainStackPtrLimit));
#endif
}
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3)
/**
\brief Set Main Stack Pointer Limit (non-secure)
Devices without ARMv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure
Stack Pointer Limit register hence the write is silently ignored.
\details Assigns the given value to the non-secure Main Stack Pointer Limit (MSPLIM) when in secure state.
\param [in] MainStackPtrLimit Main Stack Pointer value to set
*/
__STATIC_FORCEINLINE void __TZ_set_MSPLIM_NS(uint32_t MainStackPtrLimit)
{
#if (!(defined (__ARM_ARCH_8M_MAIN__ ) && (__ARM_ARCH_8M_MAIN__ == 1)) && \
!(defined (__ARM_ARCH_8_1M_MAIN__ ) && (__ARM_ARCH_8_1M_MAIN__ == 1)))
/* without main extensions, the non-secure MSPLIM is RAZ/WI */
(void)MainStackPtrLimit;
#else
__ASM volatile ("MSR msplim_ns, %0" : : "r" (MainStackPtrLimit));
#endif
}
#endif
#endif /* (__ARM_ARCH >= 8) */
/** @} end of CMSIS_Core_RegAccFunctions */
#endif /* __CMSIS_GCC_M_H */