arch/mips/mti-malta/malta-memory.c

Source file repositories/reference/linux-study-clean/arch/mips/mti-malta/malta-memory.c

File Facts

System
Linux kernel
Corpus path
arch/mips/mti-malta/malta-memory.c
Extension
.c
Size
1186 bytes
Lines
45
Domain
Architecture Layer
Bucket
arch/mips
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

#include <linux/init.h>
#include <linux/memblock.h>
#include <linux/string.h>

#include <asm/bootinfo.h>
#include <asm/cdmm.h>
#include <asm/maar.h>
#include <asm/sections.h>
#include <asm/fw/fw.h>

/* determined physical memory size, not overridden by command line args	 */
unsigned long physical_memsize = 0L;

static void free_init_pages_eva_malta(void *begin, void *end)
{
	free_init_pages("unused kernel", __pa_symbol((unsigned long *)begin),
			__pa_symbol((unsigned long *)end));
}

void __init fw_meminit(void)
{
	bool eva = IS_ENABLED(CONFIG_EVA);

	free_init_pages_eva = eva ? free_init_pages_eva_malta : NULL;
}

phys_addr_t mips_cdmm_phys_base(void)
{
	/* This address is "typically unused" */
	return 0x1fc10000;
}

Annotation

Implementation Notes