Remove dependency on 'spin'

Add changelog

CHANGELOG.md

@@ -1,80 +1,80 @@
-# Changelog
-All notable changes to this project will be documented in this file.
-
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-
-## [0.2.0] - 2021-02-23
-### Added
-- Support for RISC-V SBI v0.3 Specification
-- S-level Illegal instruction exception is now delegated into S-level software handler
-- Support RFENCE extension in RustSBI framework
-- Added a test kernel to test SBI function on RustSBI implementations
-- Support device tree binary in K210 platform
-- Support SBI v0.3 hart suspend function
-- Support PMU extension trait and init function
-- Use fat pointer cell to support asynchronous hart state monitor module
-
-### Modified
-- Reform RustSBI project into a library
-- Function `rustsbi::ecall` now require `a0`-`a5` input parameters
-- Enhanced in-line code documents from SBI standard
-- Now IPI module requires to return an `SbiRet` value
-- Remove use of `global_asm` and `llvm_asm` in test kernel
-- Align to 4 bytes for interrupt handler on QEMU and test kernel
-- Update `riscv` crate dependency for QEMU platform
-- Use `mtval` to read instruction on QEMU; still need to be kept on K210 as 1.9.1 does not define this register behavior
-- Modify second parameter of `enter_privileged` to `opaque` other than `dtb_pa`
-- Dump all trap frame registers when exception happened in reference implementations
-- Use `embedded-hal` dependency version `0.2.6`
-- Change to asynchronous lock structure trait style
-- Function `num_counters` returns `usize` and its SBI call must return `SBI_SUCCESS`
-- Use ticket mutex for legacy stdio handler; remove dependency on `lazy_static`
-
-### Fixed
-- Test kernel console now will lock before `println` line is finished
-- Non-legacy supervisor IPI extension is fixed
-- Returns -1 other than 0 when legacy console getchar function fails; thank you @duskmoon314
-
-## [0.1.1] - 2021-02-01
-### Added
-- Abstract support for HSM and SRST extensions
-- Support SRST extension using test device on QEMU
-- Count harts from device tree binary on QEMU platform
-- Show hart id on panic for QEMU platform
-
-### Modified
-- Use '#[naked]' instead of global assembly in newer Rust version for RustSBI platforms
-
-### Fixed
-- Fix `init_hsm` function which is not exported before
-- Small fixes on library documents
-
-## [0.1.0] - 2020-12-26
-RustSBI is adapted to SBI standard with implementation number 4.
-### Added
-- Implementation specific SBI module `0x0A000004` defined
-- K210 specific sbi_rustsbi_k210_sext SBI call
-
-### Modified
-- Update private SBI function to K210 implementation
-
-### Fixed
-- Delegate instruction load/store faults to S mode, allowing legacy console getchar to work on K210 (#7).
-- Fixed 64-bit and 32-bit instruction value for target pointer widths
-- Fixed readme document path for crates.io
-
-## [0.0.2] - 2020-10-20
-### Added
-- Support for Kendryte K210 with MMU and S-Mode
-- Support for QEMU
-- SBI v0.2 TIME extension and IPI extension
-- RISC-V ISA both RV32 and RV64
-- RISC-V Privileged Specification v1.11
-- Backward compatible to privileged spec v1.9.1
-
-[Unreleased]: https://github.com/rustsbi/rustsbi/compare/v0.2.0...HEAD
-[0.2.0]: https://github.com/rustsbi/rustsbi/compare/v0.1.1...v0.2.0
-[0.1.1]: https://github.com/rustsbi/rustsbi/compare/v0.1.0...v0.1.1
-[0.1.0]: https://github.com/rustsbi/rustsbi/compare/v0.0.2...v0.1.0
-[0.0.2]: https://github.com/rustsbi/rustsbi/releases/tag/v0.0.2
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.2.0] - 2021-02-23
+### Added
+- Support for RISC-V SBI v0.3 Specification
+- S-level Illegal instruction exception is now delegated into S-level software handler
+- Support RFENCE extension in RustSBI framework
+- Added a test kernel to test SBI function on RustSBI implementations
+- Support device tree binary in K210 platform
+- Support SBI v0.3 hart suspend function
+- Support PMU extension trait and init function
+- Use fat pointer cell to support asynchronous hart state monitor module
+
+### Modified
+- Reform RustSBI project into a library
+- Function `rustsbi::ecall` now require `a0`-`a5` input parameters
+- Enhanced in-line code documents from SBI standard
+- Now IPI module requires to return an `SbiRet` value
+- Remove use of `global_asm` and `llvm_asm` in test kernel
+- Align to 4 bytes for interrupt handler on QEMU and test kernel
+- Update `riscv` crate dependency for QEMU platform
+- Use `mtval` to read instruction on QEMU; still need to be kept on K210 as 1.9.1 does not define this register behavior
+- Modify second parameter of `enter_privileged` to `opaque` other than `dtb_pa`
+- Dump all trap frame registers when exception happened in reference implementations
+- Use `embedded-hal` dependency version `0.2.6`
+- Change to asynchronous lock structure trait style
+- Function `num_counters` returns `usize` and its SBI call must return `SBI_SUCCESS`
+- Use amo mutex for legacy stdio handler; remove dependency on `lazy_static` and `spin`
+
+### Fixed
+- Test kernel console now will lock before `println` line is finished
+- Non-legacy supervisor IPI extension is fixed
+- Returns -1 other than 0 when legacy console getchar function fails; thank you @duskmoon314
+
+## [0.1.1] - 2021-02-01
+### Added
+- Abstract support for HSM and SRST extensions
+- Support SRST extension using test device on QEMU
+- Count harts from device tree binary on QEMU platform
+- Show hart id on panic for QEMU platform
+
+### Modified
+- Use '#[naked]' instead of global assembly in newer Rust version for RustSBI platforms
+
+### Fixed
+- Fix `init_hsm` function which is not exported before
+- Small fixes on library documents
+
+## [0.1.0] - 2020-12-26
+RustSBI is adapted to SBI standard with implementation number 4.
+### Added
+- Implementation specific SBI module `0x0A000004` defined
+- K210 specific sbi_rustsbi_k210_sext SBI call
+
+### Modified
+- Update private SBI function to K210 implementation
+
+### Fixed
+- Delegate instruction load/store faults to S mode, allowing legacy console getchar to work on K210 (#7).
+- Fixed 64-bit and 32-bit instruction value for target pointer widths
+- Fixed readme document path for crates.io
+
+## [0.0.2] - 2020-10-20
+### Added
+- Support for Kendryte K210 with MMU and S-Mode
+- Support for QEMU
+- SBI v0.2 TIME extension and IPI extension
+- RISC-V ISA both RV32 and RV64
+- RISC-V Privileged Specification v1.11
+- Backward compatible to privileged spec v1.9.1
+
+[Unreleased]: https://github.com/rustsbi/rustsbi/compare/v0.2.0...HEAD
+[0.2.0]: https://github.com/rustsbi/rustsbi/compare/v0.1.1...v0.2.0
+[0.1.1]: https://github.com/rustsbi/rustsbi/compare/v0.1.0...v0.1.1
+[0.1.0]: https://github.com/rustsbi/rustsbi/compare/v0.0.2...v0.1.0
+[0.0.2]: https://github.com/rustsbi/rustsbi/releases/tag/v0.0.2

Cargo.toml

@@ -28,4 +28,3 @@ targets = [
 embedded-hal = "0.2.6"
 nb = "1.0"
 riscv = "0.7"
-spin = { version = "0.9", features = ["ticket_mutex"] }