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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
*/
dts: Rename generated_dts_board*.{h,conf} to devicetree*.{h,conf} generated_dts_board.h is pretty redundant and confusing as a name. Call it devicetree.h instead. dts.h would be another option, but DTS stands for "devicetree source" and is the source code format, so it's a bit confusing too. The replacement was done by grepping for 'generated_dts_board' and 'GENERATED_DTS_BOARD'. Two build diagram and input-output SVG files were updated as well, along with misc. documentation. hal_ti, mcuboot, and ci-tools updates are included too, in the west.yml update. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-01-16 20:29:53 +08:00
#include <devicetree.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>
boards: emsk: add initial support of normal/non-secure application * Non-secure/normal application: em_starterkit_em7d_normal * secure application: em_starterkit_em7d Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-08-01 14:08:36 +08:00
/*
* for secure firmware, MPU entries are only set up for secure world.
* All regions not listed here are shared by secure world and normal world.
*/
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[] = {
soc: arc: Use new dts macros in linker scripts and arc_mpu_regions Convert linker scripts and arc_mpu_regions.c setup to use new devicetree.h macros to extract the base address and size of the various memory regions (DDR, SRAM, FLASH, DCCM, ICCM). We also remove the scaling up and down since DT_REG_SIZE() returns the value in bytes. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-30 22:34:04 +08:00
#if DT_REG_SIZE(DT_INST(0, arc_iccm)) > 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",
soc: arc: Use new dts macros in linker scripts and arc_mpu_regions Convert linker scripts and arc_mpu_regions.c setup to use new devicetree.h macros to extract the base address and size of the various memory regions (DDR, SRAM, FLASH, DCCM, ICCM). We also remove the scaling up and down since DT_REG_SIZE() returns the value in bytes. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-30 22:34:04 +08:00
DT_REG_ADDR(DT_INST(0, arc_iccm)),
DT_REG_SIZE(DT_INST(0, arc_iccm)),
arch: arc: refactor the ARC MPU driver * separate the ARC MPU driver into 2 parts * arc_mpu_v2_internal.h for ARC MPUv2 * arc_mpu_v3_internal.h for ARC MPUv3 * For ARC MPUv2, keep the main design, but update and optimize the code * For ARC MPUv3, implement mpu region split to supprt MPU region overlap * misc updates and bug fixes Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-03-05 10:29:16 +08:00
REGION_ROM_ATTR),
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
#endif
soc: arc: Use new dts macros in linker scripts and arc_mpu_regions Convert linker scripts and arc_mpu_regions.c setup to use new devicetree.h macros to extract the base address and size of the various memory regions (DDR, SRAM, FLASH, DCCM, ICCM). We also remove the scaling up and down since DT_REG_SIZE() returns the value in bytes. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-30 22:34:04 +08:00
#if DT_REG_SIZE(DT_INST(0, arc_dccm)) > 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",
soc: arc: Use new dts macros in linker scripts and arc_mpu_regions Convert linker scripts and arc_mpu_regions.c setup to use new devicetree.h macros to extract the base address and size of the various memory regions (DDR, SRAM, FLASH, DCCM, ICCM). We also remove the scaling up and down since DT_REG_SIZE() returns the value in bytes. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-30 22:34:04 +08:00
DT_REG_ADDR(DT_INST(0, arc_dccm)),
DT_REG_SIZE(DT_INST(0, arc_dccm)),
arch: arc: refactor the ARC MPU driver * separate the ARC MPU driver into 2 parts * arc_mpu_v2_internal.h for ARC MPUv2 * arc_mpu_v3_internal.h for ARC MPUv3 * For ARC MPUv2, keep the main design, but update and optimize the code * For ARC MPUv3, implement mpu region split to supprt MPU region overlap * misc updates and bug fixes Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-03-05 10:29:16 +08:00
REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC),
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
#endif
board: emsk: fix the wrong info about DDR DDR's info should come from DT_MMIO_SRAM_0 Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-03-22 14:52:56 +08:00
boards: arc: Convert to new DT_INST macros Convert older DT_INST_ macro use the new include/devicetree.h DT_INST macro APIs. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-03-31 02:17:07 +08:00
#if DT_REG_SIZE(DT_INST(0, mmio_sram)) > 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 DDR RAM */
MPU_REGION_ENTRY("DDR RAM",
boards: arc: Convert to new DT_INST macros Convert older DT_INST_ macro use the new include/devicetree.h DT_INST macro APIs. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-03-31 02:17:07 +08:00
DT_REG_ADDR(DT_INST(0, mmio_sram)),
DT_REG_SIZE(DT_INST(0, mmio_sram)),
arch: arc: refactor the ARC MPU driver * separate the ARC MPU driver into 2 parts * arc_mpu_v2_internal.h for ARC MPUv2 * arc_mpu_v3_internal.h for ARC MPUv3 * For ARC MPUv2, keep the main design, but update and optimize the code * For ARC MPUv3, implement mpu region split to supprt MPU region overlap * misc updates and bug fixes Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-03-05 10:29:16 +08:00
AUX_MPU_ATTR_KW | AUX_MPU_ATTR_KR | AUX_MPU_ATTR_UR |
AUX_MPU_ATTR_KE | AUX_MPU_ATTR_UE | REGION_DYNAMIC),
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
#endif
boards: emsk: add initial support of normal/non-secure application * Non-secure/normal application: em_starterkit_em7d_normal * secure application: em_starterkit_em7d Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-08-01 14:08:36 +08:00
/*
* Region peripheral is shared by secure world and normal world by default,
* no need a static mpu entry. If some peripherals belong to secure world,
* add it here.
*/
#ifndef CONFIG_ARC_SECURE_FIRMWARE
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,
boards: emsk: add initial support of normal/non-secure application * Non-secure/normal application: em_starterkit_em7d_normal * secure application: em_starterkit_em7d Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2019-08-01 14:08:36 +08:00
REGION_KERNEL_RAM_ATTR)
#endif
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
};
struct arc_mpu_config mpu_config = {
.num_regions = ARRAY_SIZE(mpu_regions),
.mpu_regions = mpu_regions,
};