mirror of
https://github.com/RIOT-OS/RIOT.git
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755442fe27
19712: cpu/riscv: Add PMP driver r=MrKevinWeiss a=Teufelchen1
### Contribution description
Hi! 🐘
this adds a basic RISC-V physical memory protection (PMP) driver to RIOT. Well, 'driver' might be a stretched, feels more like a little utility :)
EDIT: Also added a no-execute RAM option for the hifive & a corresponding test
Since I only have an Hifive rev b, it's only enabled on this board / cpu. I also tested the code on an ESP32-C but the feature can't be enabled there, as `cpu/riscv_common/` is not used by the ESP32...
### Testing procedure
* Grab a hifive rev b
* go to `examples/hello-world`
* Add `USEMODULES += periph_pmp` to the `Makefile`
* Include `pmp.h` in `main.c`
* Add code e.g. `print_pmpcfg(0);`
* compile & flash & term
You should see something like this:
```
# Hello World!
# You are running RIOT on a(n) hifive1b board.
# This board features a(n) fe310 MCU.
# pmp00cfg: - R-X OFF 0x00000000 - 0x00000000
```
Co-authored-by: Teufelchen1 <bennet.blischke@outlook.com>
563 lines
13 KiB
Plaintext
563 lines
13 KiB
Plaintext
# Copyright (c) 2020 HAW Hamburg
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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#
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# Declaration of generic features that CPUs and boards may provide
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config HAS_ARCH_8BIT
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bool
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help
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Indicates that the CPU has a 8-bits architecture.
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config HAS_ARCH_16BIT
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bool
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help
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Indicates that the CPU has a 16-bits architecture.
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config HAS_ARCH_32BIT
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bool
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help
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Indicates that the CPU has a 32-bits architecture.
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config HAS_ARCH_ARM
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bool
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help
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Indicates that the current architecture is ARM.
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config HAS_ARDUINO_ANALOG
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bool
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help
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Indicates that Arduino analog pins mappings are provided.
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config HAS_ARDUINO_DAC
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bool
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help
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Indicates that Arduino DAC pins mappings are provided.
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config HAS_ARDUINO_I2C
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bool
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help
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Indicates that Arduino I²C bus mappings are provided.
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config HAS_ARDUINO_PINS
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bool
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help
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Indicates that Arduino digital pins mappings are provided.
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config HAS_ARDUINO_PWM
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bool
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help
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Indicates that Arduino digital pin to PWM mappings are provided.
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config HAS_ARDUINO_SHIELD_ISP
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bool
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help
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Indicates that the board is electrically and mechanically compatible
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with shields that mate with the ISP header for SPI connectivity.
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config HAS_ARDUINO_SHIELD_MEGA
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bool
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# The Arduino Mega 2560 is backward compatible with Arduino UNO shields. So
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# any board compatible with Mega shields will automatically be compatible
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# with UNO shields.
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select HAS_ARDUINO_SHIELD_UNO
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help
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Indicates that the board is mechanically and electrically compatible
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with shields developed for the Arduino Mega 2560. (Note: Not including
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the ISP header, that requires HAS_ARDUINO_SHIELD_ISP in addition.)
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config HAS_ARDUINO_SHIELD_NANO
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bool
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help
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Indicates that the board is mechanically and electrically compatible
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with shields developed for the Arduino Nano. (Note: Not including
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the ISP header, that requires HAS_ARDUINO_SHIELD_ISP in addition.)
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config HAS_ARDUINO_SHIELD_UNO
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bool
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help
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Indicates that the board is mechanically and electrically compatible
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with shields developed for the Arduino Nano. (Note: Not including
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the ISP header, that requires HAS_ARDUINO_SHIELD_ISP in addition.)
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config HAS_ARDUINO_SPI
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bool
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help
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Indicates that Arduino SPI bus mappings are provided.
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config HAS_ARDUINO_UART
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bool
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help
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Indicates that Arduino UART device mappings are provided.
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config HAS_BACKUP_RAM
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bool
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help
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Indicates that Backup RAM is supported.
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config HAS_BLE_ADV_EXT
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bool
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help
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Indicates the current platform supports Bluetooth 5 Advertising
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Extension
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config HAS_BLE_NIMBLE
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bool
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help
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Indicates that the NimBLE stack is supported on the current platform.
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config HAS_BLE_NIMBLE_NETIF
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bool
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help
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Indicates that NimBLE netif is supported on the current platform.
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config HAS_BLE_PHY_2MBIT
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bool
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help
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Indicates that the BLE radio supports the 2Mbit PHY mode
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config HAS_BLE_PHY_CODED
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bool
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help
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Indicates that the BLE radio supports the CODED PHY mode
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config HAS_CPP
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bool
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help
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Indicates that C++ is supported.
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config HAS_CPU_CHECK_ADDRESS
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bool
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help
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Indicates that address validity check is supported.
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config HAS_DBGPIN
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bool
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help
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Indicates that a platform provides the neccessary initialization hooks
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for the dbgpin module.
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config HAS_EMULATOR_RENODE
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bool
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help
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Indicates that the platform is compatible with the Renode emulator.
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config HAS_ETHERNET
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bool
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help
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Indicates that Ethernet connectivity is present.
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config HAS_PERIPH_FLASHPAGE_IN_ADDRESS_SPACE
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bool
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help
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Indicates that static memory sections can fundamentally be turned
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into flash pages.
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config HAS_HIGHLEVEL_STDIO
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bool
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help
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Indicates that a high-level stdio method (such as CDC ACM) is used.
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This requires a running thread and set-up and will not print during
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a crash.
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config HAS_LIBSTDCPP
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bool
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help
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Indicates that in addition to C++ support an libstdc++ is available.
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config HAS_NO_IDLE_THREAD
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bool
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help
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Indicates that this MCU doesn't need the idle thread
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config HAS_MOTOR_DRIVER
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bool
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help
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Indicates that a motor_driver configuration is present.
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config HAS_PERIPH_ADC
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bool
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help
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Indicates that an ADC peripheral is present.
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config HAS_PERIPH_CAN
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bool
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help
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Indicates that a CAN peripheral is present.
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config HAS_PERIPH_CORETIMER
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bool
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help
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Indicates that the CLINT timer can be used as timer peripheral
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config HAS_PERIPH_CPUID
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bool
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help
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Indicates that a CPU ID peripheral is present.
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config HAS_PERIPH_DAC
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bool
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help
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Indicates that a DAC peripheral is present.
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config HAS_PERIPH_DMA
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bool
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help
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Indicates that a DMA peripheral is present.
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config HAS_PERIPH_EEPROM
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bool
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help
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Indicates that a EEPROM peripheral is present.
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config HAS_PERIPH_ETH
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bool
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help
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Indicates that an Ethernet peripheral is present.
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config HAS_PERIPH_FLASHPAGE
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bool
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help
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Indicates that a Flashpage peripheral is present.
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config HAS_PERIPH_FLASHPAGE_PAGEWISE
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bool
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help
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Indicates that the Flashpage peripheral supports pagewise writing.
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config HAS_PERIPH_FLASHPAGE_RWEE
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bool
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help
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Indicates that the Flashpage peripheral is of the Read While Write.
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config HAS_PERIPH_GPIO
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bool
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help
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Indicates that a GPIO peripheral is present.
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config HAS_PERIPH_GPIO_IRQ
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bool
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help
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Indicates that the GPIO peripheral supports external interrupts is
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present.
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config HAS_PERIPH_GPIO_FAST_READ
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bool
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help
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Indicates that the GPIO peripheral supports a mode in which pin read
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operations are faster, usually with a tradeoff against a different
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property.
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config HAS_PERIPH_GPIO_TAMPER_WAKE
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bool
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help
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Indicates that Tamper Detection can be used to wake the CPU from
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Deep Sleep.
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config HAS_PERIPH_GPIO_LL
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bool
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help
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Indicates that the gpio_ll driver is implemented for the MCU's GPIO
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peripheral.
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config HAS_PERIPH_GPIO_LL_IRQ
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bool
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help
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Indicates that IRQ support for the gpio_ll driver is implemented for the
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MCU's GPIO peripheral.
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config HAS_PERIPH_GPIO_LL_IRQ_LEVEL_TRIGGERED_HIGH
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bool
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help
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Indicates that IRQs can be triggered level based for signal high.
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config HAS_PERIPH_GPIO_LL_IRQ_LEVEL_TRIGGERED_LOW
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bool
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help
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Indicates that IRQs can be triggered level based for signal low.
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config HAS_PERIPH_GPIO_LL_IRQ_UNMASK
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bool
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help
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Indicates that the GPIO peripheral supports unmasking interrupts without
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clearing pending IRQs that came in while masked.
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config HAS_PERIPH_HWRNG
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bool
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help
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Indicates that a Hardware Random Number Generator (HWRNG) peripheral is
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present.
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config HAS_PERIPH_I2C
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bool
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help
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Indicates that an I2C peripheral is present.
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config HAS_PERIPH_I2C_RECONFIGURE
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bool
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help
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Indicates that the I2C peripheral allows pin reconfiguration peripheral
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is present.
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config HAS_PERIPH_ICS
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bool
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help
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Indicates that an ICS peripheral is present.
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config HAS_PERIPH_IR
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bool
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help
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Indicates that an IR peripheral is present.
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config HAS_PERIPH_LPUART
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bool
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help
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Indicates that a low-power UART peripheral is present.
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config HAS_PERIPH_LTDC
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bool
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select MODULE_PERIPH_LTDC if MODULE_DISP_DEV
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help
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Indicates that a LTDC peripheral is present.
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config HAS_PERIPH_MCG
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bool
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help
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Indicates that an MCG peripheral is present.
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config HAS_PERIPH_CLIC
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bool
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help
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Indicates that a RISC-V Core-local Interrupt Controller (CLIC) peripheral is present.
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config HAS_PERIPH_PIO
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bool
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help
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Indicates that Programmable IO (PIO) is supported by the CPU
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config HAS_PERIPH_PLIC
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bool
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help
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Indicates that a RISC-V Platform-local Interrupt Controller (PLIC) peripheral is present.
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config HAS_PERIPH_PMP
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bool
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help
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Indicates that a RISC-V physical memory protection (PMP) peripheral is present.
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config HAS_PERIPH_PM
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bool
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help
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Indicates that a Power Management (PM) peripheral is present.
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config HAS_PERIPH_PTP
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bool
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help
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Indicates that a PTP clock is present.
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config HAS_PERIPH_PTP_SPEED_ADJUSTMENT
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bool
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help
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Indicates that the PTP clock speed can be adjust. This can be used for clock drift correction and synchronization.
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config HAS_PERIPH_PTP_TIMER
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bool
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help
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Indicates that the PTP clock can be used as timer.
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config HAS_PERIPH_PTP_TXRX_TIMESTAMPS
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bool
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help
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Indicates that the PTP clock can provide exact time stamps of the
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reception and transmission of frames.
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config HAS_PERIPH_PWM
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bool
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help
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Indicates that a PWM peripheral is present.
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config HAS_PERIPH_QDEC
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bool
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help
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Indicates that a QDEC peripheral is present.
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config HAS_PERIPH_RTC
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bool
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help
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Indicates that an RTC peripheral is present.
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config HAS_PERIPH_RTC_MEM
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bool
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help
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Indicates that the RTC peripheral provides storage memory for deep sleep.
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config HAS_PERIPH_RTC_MS
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bool
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help
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Indicates that the RTC peripheral can provide sub-second timestamps.
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config HAS_PERIPH_RTT
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bool
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help
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Indicates that an RTT peripheral is present.
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config HAS_PERIPH_RTT_SET_COUNTER
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bool
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help
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Indicates that the RTT peripheral implements rtt_set_counter().
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config HAS_PERIPH_RTT_OVERFLOW
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bool
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help
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Indicates that the RTT provides an overflow callback.
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config HAS_PERIPH_SPI
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bool
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help
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Indicates that an SPI peripheral is present.
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config HAS_PERIPH_SPI_ON_QSPI
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bool
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help
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Indicates that the QSPI peripheral can be used in SPI mode.
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config HAS_PERIPH_SPI_RECONFIGURE
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bool
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help
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Indicates that the SPI peripheral allows pin reconfiguration.
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config HAS_PERIPH_SPI_GPIO_MODE
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bool
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help
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Indicates that the SPI peripheral supports configuring the GPIOs modes.
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config HAS_PERIPH_TEMPERATURE
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bool
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help
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Indicates that a Temperature peripheral is present.
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config HAS_PERIPH_TIMER
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bool
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help
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Indicates that a Timer peripheral is present.
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config HAS_PERIPH_TIMER_PERIODIC
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bool
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help
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Indicates that the Timer peripheral provides the periodic timeout
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functionality.
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config HAS_PERIPH_UART
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bool
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help
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Indicates that an UART peripheral is present.
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config HAS_PERIPH_UART_COLLISION
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bool
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help
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Indicates that the UART peripheral supports hardware collision detection.
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config HAS_PERIPH_UART_HW_FC
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bool
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help
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Indicates that the UART peripheral supports hardware flow control.
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config HAS_PERIPH_UART_MODECFG
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bool
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help
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Indicates that the UART peripheral allows mode configuration.
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config HAS_PERIPH_UART_NONBLOCKING
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bool
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help
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Indicates that the UART peripheral allows non-blocking operations.
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config HAS_PERIPH_UART_RECONFIGURE
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bool
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help
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Indicates that the UART pins can be re-configured as GPIOs.
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config HAS_PERIPH_UART_RXSTART_IRQ
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bool
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help
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Indicates that the UART has an Interrupt for Start Condition detected.
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config HAS_PERIPH_USBDEV
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bool
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help
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Indicates that an USBDEV peripheral is present.
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config HAS_PERIPH_USBDEV_HS
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bool
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help
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Indicates that the USBDEV peripheral supports High-Speed.
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config HAS_PERIPH_USBDEV_HS_UTMI
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bool
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help
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Indicates that an USBDEV HS peripheral with internal UTMI+ HS PHY is present.
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config HAS_PERIPH_USBDEV_HS_ULPI
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bool
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help
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Indicates that an USBDEV HS peripheral with ULPI HS PHY is present.
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config HAS_PERIPH_VBAT
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bool
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help
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Indicates that backup battery monitoring is supported
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config HAS_PERIPH_WDT
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bool
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help
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Indicates that a Watchdog Timer (WDT) peripheral is present.
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config HAS_PERIPH_WDT_CB
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bool
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help
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Indicates that the WDT peripheral allows setting a callback.
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config HAS_PICOLIBC
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bool
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help
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Indicates that the picolibc C library is available for the platform.
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config HAS_PIO_I2C
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bool
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help
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Indicates that there is a PIO program to provide emulated I2C
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config HAS_NEWLIB
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bool
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help
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Indicates that the newlib C library is available for the platform.
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config HAS_PUF_SRAM
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bool
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help
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Indicates that the PUF-SRAM module has been tested on the platform.
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config HAS_RIOTBOOT
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bool
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help
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Indicates that the riotboot booloader is supported.
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config HAS_RUST_TARGET
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bool
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help
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Indicates that a Rust target definition ("triple") is known.
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config HAS_SDCARD_SPI
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bool
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help
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Indicates that an SD-Card SPI configuration is provided.
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config HAS_SSP
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bool
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help
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Indicates that Stack Smashing Protection is supported.
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