rust/helpers/io.c

Source file repositories/reference/linux-study-clean/rust/helpers/io.c

File Facts

System
Linux kernel
Corpus path
rust/helpers/io.c
Extension
.c
Size
3040 bytes
Lines
147
Domain
Rust Kernel Layer
Bucket
Rust API Membrane
Inferred role
Rust Kernel Layer: implementation source
Status
source implementation candidate

Why This File Exists

Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0

#include <linux/io.h>
#include <linux/ioport.h>

__rust_helper void __iomem *rust_helper_ioremap(phys_addr_t offset, size_t size)
{
	return ioremap(offset, size);
}

__rust_helper void __iomem *rust_helper_ioremap_np(phys_addr_t offset,
						   size_t size)
{
	return ioremap_np(offset, size);
}

__rust_helper void rust_helper_iounmap(void __iomem *addr)
{
	iounmap(addr);
}

__rust_helper u8 rust_helper_readb(const void __iomem *addr)
{
	return readb(addr);
}

__rust_helper u16 rust_helper_readw(const void __iomem *addr)
{
	return readw(addr);
}

__rust_helper u32 rust_helper_readl(const void __iomem *addr)
{
	return readl(addr);
}

#ifdef CONFIG_64BIT
__rust_helper u64 rust_helper_readq(const void __iomem *addr)
{
	return readq(addr);
}
#endif

__rust_helper void rust_helper_writeb(u8 value, void __iomem *addr)
{
	writeb(value, addr);
}

__rust_helper void rust_helper_writew(u16 value, void __iomem *addr)
{
	writew(value, addr);
}

__rust_helper void rust_helper_writel(u32 value, void __iomem *addr)
{
	writel(value, addr);
}

#ifdef CONFIG_64BIT
__rust_helper void rust_helper_writeq(u64 value, void __iomem *addr)
{
	writeq(value, addr);
}
#endif

__rust_helper u8 rust_helper_readb_relaxed(const void __iomem *addr)
{
	return readb_relaxed(addr);
}

__rust_helper u16 rust_helper_readw_relaxed(const void __iomem *addr)
{
	return readw_relaxed(addr);
}

__rust_helper u32 rust_helper_readl_relaxed(const void __iomem *addr)
{
	return readl_relaxed(addr);
}

#ifdef CONFIG_64BIT
__rust_helper u64 rust_helper_readq_relaxed(const void __iomem *addr)
{
	return readq_relaxed(addr);
}
#endif

__rust_helper void rust_helper_writeb_relaxed(u8 value, void __iomem *addr)
{
	writeb_relaxed(value, addr);

Annotation

Implementation Notes