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zephyr/boards/arc/em_starterkit/arc_mpu_regions.c

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arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
/*
* Copyright (c) 2017 Synopsys
*
* SPDX-License-Identifier: Apache-2.0
*/
arch: em{7,9,11}d: Add dts support Add initial device tree support for the em{7,9,11}d SoC and associated em_starterkit boards. The device tree at this point specifies cpu core, memory, interrupt controller, uart's and i2c controllers. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-03-15 05:36:09 +08:00
#include <generated_dts_board.h>
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
#include <soc.h>
#include <arch/arc/v2/mpu/arc_mpu.h>
#include <linker/linker-defs.h>
#ifdef CONFIG_USERSPACE
static struct arc_mpu_region mpu_regions[] = {
arch: arc: fix the overkilled codes caused by removing APP_MEM these codes are overkilled by commit 41f6011c Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-02-19 11:09:50 +08:00
#if CONFIG_ARC_MPU_VER == 3
/* Region ICCM */
MPU_REGION_ENTRY("IMAGE ROM",
(u32_t) _image_rom_start,
(u32_t) _image_rom_size,
REGION_FLASH_ATTR),
MPU_REGION_ENTRY("KERNEL MEMORY",
(u32_t) __kernel_ram_start,
(u32_t) __kernel_ram_size,
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR),
#else
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
#if DT_ICCM_SIZE > 0
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
/* Region ICCM */
MPU_REGION_ENTRY("ICCM",
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
DT_ICCM_BASE_ADDRESS,
DT_ICCM_SIZE * 1024,
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
REGION_FLASH_ATTR),
#endif
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
#if DT_DCCM_SIZE > 0
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
/* Region DCCM */
MPU_REGION_ENTRY("DCCM",
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
DT_DCCM_BASE_ADDRESS,
DT_DCCM_SIZE * 1024,
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR),
#endif
#if CONFIG_SRAM_SIZE > 0
/* Region DDR RAM */
MPU_REGION_ENTRY("DDR RAM",
CONFIG_SRAM_BASE_ADDRESS,
CONFIG_SRAM_SIZE * 1024,
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR |
AUX_MPU_RDP_KE | AUX_MPU_RDP_UE),
#endif
arch: arc: fix the overkilled codes caused by removing APP_MEM these codes are overkilled by commit 41f6011c Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-02-19 11:09:50 +08:00
#endif /* ARC_MPU_VER == 3 */
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
/* Region Peripheral */
MPU_REGION_ENTRY("PERIPHERAL",
0xF0000000,
64 * 1024,
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR),
};
boards: em_starterkit: fix the mpu regions definition _image_rom_end to _image_rom_size Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-03-08 02:33:54 +08:00
#else /* CONFIG_USERSPACE */
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
static struct arc_mpu_region mpu_regions[] = {
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
#if DT_ICCM_SIZE > 0
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
/* Region ICCM */
MPU_REGION_ENTRY("ICCM",
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
DT_ICCM_BASE_ADDRESS,
DT_ICCM_SIZE * 1024,
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
REGION_FLASH_ATTR),
#endif
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
#if DT_DCCM_SIZE > 0
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
/* Region DCCM */
MPU_REGION_ENTRY("DCCM",
dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig These changes were obtained by running a script created by Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following specification: 1. Read the contents of all dts_fixup.h files in Zephyr 2. Check the left-hand side of the #define macros (i.e. the X in #define X Y) 3. Check if that name is also the name of a Kconfig option 3.a If it is, then do nothing 3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it has neither of these two prefixes 4. Replace the use of the changed #define in the code itself (.c, .h, .ld) Additionally, some tweaks had to be added to this script to catch some of the macros used in the code in a parameterized form, e.g.: - CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS - CONFIG_UART_##idx##_TX_PIN - I2C_SBCON_##_num##_BASE_ADDR and to prevent adding DT_ prefix to the following symbols: - FLASH_START - FLASH_SIZE - SRAM_START - SRAM_SIZE - _ROM_ADDR - _ROM_SIZE - _RAM_ADDR - _RAM_SIZE which are surprisingly also defined in some dts_fixup.h files. Finally, some manual corrections had to be done as well: - name##_IRQ -> DT_##name##_IRQ in uart_stm32.c Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 22:15:23 +08:00
DT_DCCM_BASE_ADDRESS,
DT_DCCM_SIZE * 1024,
arch: arc: add user space support for arc * add the implementation of syscall * based on 'trap_s' intruction, id = 3 * add the privilege stack * the privilege stack is allocted with thread stack * for the kernel thread, the privilege stack is also a part of thread stack, the start of stack can be configured as stack guard * for the user thread, no stack guard, when the user stack is overflow, it will fall into kernel memory area which requires kernel privilege, privilege violation will be raised * modify the linker template and add MPU_ADDR_ALIGN * add user space corresponding codes in mpu * the user sp aux reg will be part of thread context * When user thread is interruptted for the 1st time, the context is saved in user stack (U bit of IRQ_CTLR is set to 1). When nest interrupt comes, the context is saved in thread's privilege stack * the arc_mpu_regions.c is moved to board folder, as it's board specific * the above codes have been tested through tests/kernel/mem_protect/ userspace for MPU version 2 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2018-01-23 17:13:09 +08:00
REGION_RAM_ATTR),
#endif
#if CONFIG_SRAM_SIZE > 0
/* Region DDR RAM */
MPU_REGION_ENTRY("DDR RAM",
CONFIG_SRAM_BASE_ADDRESS,
CONFIG_SRAM_SIZE * 1024,
REGION_ALL_ATTR),
#endif
/* Region Peripheral */
MPU_REGION_ENTRY("PERIPHERAL",
0xF0000000,
64 * 1024,
REGION_IO_ATTR),
};
#endif
struct arc_mpu_config mpu_config = {
.num_regions = ARRAY_SIZE(mpu_regions),
.mpu_regions = mpu_regions,
};