From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Fri, 19 Jul 2024 16:37:58 +0400
Subject: Deleted vendor folder
---
vendor/redox_syscall/src/io/mmio.rs | 168 ------------------------------------
1 file changed, 168 deletions(-)
delete mode 100644 vendor/redox_syscall/src/io/mmio.rs
(limited to 'vendor/redox_syscall/src/io/mmio.rs')
diff --git a/vendor/redox_syscall/src/io/mmio.rs b/vendor/redox_syscall/src/io/mmio.rs
deleted file mode 100644
index ef8f603..0000000
--- a/vendor/redox_syscall/src/io/mmio.rs
+++ /dev/null
@@ -1,168 +0,0 @@
-use core::mem::MaybeUninit;
-use core::ptr;
-#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
-use core::ops::{BitAnd, BitOr, Not};
-
-use super::io::Io;
-
-#[repr(packed)]
-pub struct Mmio<T> {
- value: MaybeUninit<T>,
-}
-
-impl<T> Mmio<T> {
- /// Create a new Mmio without initializing
- #[deprecated = "unsound because it's possible to read even though it's uninitialized"]
- pub fn new() -> Self {
- unsafe { Self::uninit() }
- }
- pub unsafe fn zeroed() -> Self {
- Self {
- value: MaybeUninit::zeroed(),
- }
- }
- pub unsafe fn uninit() -> Self {
- Self {
- value: MaybeUninit::uninit(),
- }
- }
- pub const fn from(value: T) -> Self {
- Self {
- value: MaybeUninit::new(value),
- }
- }
-}
-
-// Generic implementation (WARNING: requires aligned pointers!)
-#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
-impl<T> Io for Mmio<T> where T: Copy + PartialEq + BitAnd<Output = T> + BitOr<Output = T> + Not<Output = T> {
- type Value = T;
-
- fn read(&self) -> T {
- unsafe { ptr::read_volatile(ptr::addr_of!(self.value).cast::<T>()) }
- }
-
- fn write(&mut self, value: T) {
- unsafe { ptr::write_volatile(ptr::addr_of_mut!(self.value).cast::<T>(), value) };
- }
-}
-
-// x86 u8 implementation
-#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
-impl Io for Mmio<u8> {
- type Value = u8;
-
- fn read(&self) -> Self::Value {
- unsafe {
- let value: Self::Value;
- let ptr: *const Self::Value = ptr::addr_of!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov {}, [{}]",
- out(reg_byte) value,
- in(reg) ptr
- );
- value
- }
- }
-
- fn write(&mut self, value: Self::Value) {
- unsafe {
- let ptr: *mut Self::Value = ptr::addr_of_mut!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov [{}], {}",
- in(reg) ptr,
- in(reg_byte) value,
- );
- }
- }
-}
-
-// x86 u16 implementation
-#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
-impl Io for Mmio<u16> {
- type Value = u16;
-
- fn read(&self) -> Self::Value {
- unsafe {
- let value: Self::Value;
- let ptr: *const Self::Value = ptr::addr_of!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov {:x}, [{}]",
- out(reg) value,
- in(reg) ptr
- );
- value
- }
- }
-
- fn write(&mut self, value: Self::Value) {
- unsafe {
- let ptr: *mut Self::Value = ptr::addr_of_mut!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov [{}], {:x}",
- in(reg) ptr,
- in(reg) value,
- );
- }
- }
-}
-
-// x86 u32 implementation
-#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
-impl Io for Mmio<u32> {
- type Value = u32;
-
- fn read(&self) -> Self::Value {
- unsafe {
- let value: Self::Value;
- let ptr: *const Self::Value = ptr::addr_of!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov {:e}, [{}]",
- out(reg) value,
- in(reg) ptr
- );
- value
- }
- }
-
- fn write(&mut self, value: Self::Value) {
- unsafe {
- let ptr: *mut Self::Value = ptr::addr_of_mut!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov [{}], {:e}",
- in(reg) ptr,
- in(reg) value,
- );
- }
- }
-}
-
-// x86 u64 implementation (x86_64 only)
-#[cfg(target_arch = "x86_64")]
-impl Io for Mmio<u64> {
- type Value = u64;
-
- fn read(&self) -> Self::Value {
- unsafe {
- let value: Self::Value;
- let ptr: *const Self::Value = ptr::addr_of!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov {:r}, [{}]",
- out(reg) value,
- in(reg) ptr
- );
- value
- }
- }
-
- fn write(&mut self, value: Self::Value) {
- unsafe {
- let ptr: *mut Self::Value = ptr::addr_of_mut!(self.value).cast::<Self::Value>();
- core::arch::asm!(
- "mov [{}], {:r}",
- in(reg) ptr,
- in(reg) value,
- );
- }
- }
-}
--
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