arch/loongarch/mm/ioremap.c

Source file repositories/reference/linux-study-clean/arch/loongarch/mm/ioremap.c

File Facts

System
Linux kernel
Corpus path
arch/loongarch/mm/ioremap.c
Extension
.c
Size
654 bytes
Lines
29
Domain
Architecture Layer
Bucket
arch/loongarch
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 */

#include <asm/io.h>
#include <asm-generic/early_ioremap.h>

void __init __iomem *early_ioremap(phys_addr_t phys_addr, unsigned long size)
{
	return ((void __iomem *)TO_CACHE(phys_addr));
}

void __init early_iounmap(void __iomem *addr, unsigned long size)
{

}

void * __init early_memremap_ro(resource_size_t phys_addr, unsigned long size)
{
	return early_memremap(phys_addr, size);
}

void * __init early_memremap_prot(resource_size_t phys_addr, unsigned long size,
		    unsigned long prot_val)
{
	return early_memremap(phys_addr, size);
}

Annotation

Implementation Notes