riscv/CHANGELOG.md

Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

Added

• Add generic implementation of a PLIC peripheral
• Add asm::fence(), a wrapper for implementing a fence instruction
• Add asm::fence_i(), a wrapper for implementing a fence.i instruction
• Add TryFrom implementation for mcause::{Interrupt, Exception} and scause::{Interrupt, Exception}

Changed

• Removed bit_field dependency
• CI actions updated. They now use checkout@v3 and dtolnay/rust-toolchain.
• mcause::{Interrupt, Exception} and scause::{Interrupt, Exception} now implement From trait for usize

Fixed

• Fix scause::Exception missing LoadMisaligned
• Fix scause::Exception missing SupervisorEnvCall
• Removed user-level interrupts from mcause::Interrupt and scause::Interrupt

v0.10.1 - 2023-01-18

Fixed

• Fix implementation for SingleHartCriticalSection

v0.10.0 - 2022-11-09

Added

• critical-section-single-hart feature which provides an implementation for the critical_section crate for single-hart systems, based on disabling all interrupts.

v0.9.0 - 2022-10-06

Fixed

• Fix asm::delay() to ensure count register is always reloaded
• Fix reading marchid and mimpid (#107)

Removed

• set_msoft, clear_msoft, set_mtimer and clear_mtimer removed as part of fixing issue #62

v0.8.0 - 2022-04-20

Added

• Add #[cfg(riscv32)] to pmpcfg1 and pmpcfg3 modules
• Add enums Range, Permission for PMP configuration
• Add set_pmp() and clear_pmp() functions to pmpcfg(x) modules
• Add struct Pmpcsr and is returned from pmpcfgx::read()
• Add singleton! macro
• Add delay structure and methods using embedded-hal traits and mcycle register
• Add asm::delay() function for assembly-based busy-loops
• Add asm::nop(), a wrapper for implementing a nop instruction
• Add missing #[inline] attribute to register reads, type conversations and interrupt::free

Changed

• Use new asm! instead of llvm_asm!
• Change pmpcfgx::read() macro to read_csr_as!() from read_csr_as_usize!()
• Inline assembly is now always used
• Update Minimum Supported Rust Version to 1.59

Fixed

• Fix sfence.vma operand order

Removed

• Remove inline-asm feature which is now always enabled

v0.7.0 - 2021-07-29

Added

• Add medeleg register
• Add cycle[h], instret[h] and mcounteren
• Add additional binaries for floating-point ABIs
• Add support for mxr
• Add support for mprv

Changed

• Fix scause::set
• Various formatting and comment fixes
• Update bare-metal to v1.0.0 removing Nr trait
• Build targets on docs.rs are now RISC-V targets other than default ones

v0.6.0 - 2020-06-20

Changed

• Mtvec::trap_mode(), Stvec::trap_mode() and Utvec::trap_mode() functions now return Option<TrapMode> (breaking change)
• Updated Minimum Supported Rust Version to 1.42.0
• Use llvm_asm! instead of asm!

Removed

• vexriscv-specific registers were moved to the vexriscv crate

v0.5.6 - 2020-03-14

Added

• Added vexriscv-specific registers

v0.5.5 - 2020-02-28

Added

• Added riscv32i-unknown-none-elf target support
• Added user trap setup and handling registers
• Added write methods for the mip and satp registers
• Added mideleg register
• Added Changelog

Changed

• Fixed MSRV by restricting the upper bound of bare-metal version