arch/mips/mm/page-funcs.S

Source file repositories/reference/linux-study-clean/arch/mips/mm/page-funcs.S

File Facts

System
Linux kernel
Corpus path
arch/mips/mm/page-funcs.S
Extension
.S
Size
1454 bytes
Lines
54
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: exported/initcall integration point
Status
integration 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/export.h>
#include <asm/asm.h>
#include <asm/regdef.h>

#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
#define cpu_clear_page_function_name	clear_page_cpu
#define cpu_copy_page_function_name	copy_page_cpu
#else
#define cpu_clear_page_function_name	clear_page
#define cpu_copy_page_function_name	copy_page
#endif

/*
 * Maximum sizes:
 *
 * R4000 128 bytes S-cache:		0x058 bytes
 * R4600 v1.7:				0x05c bytes
 * R4600 v2.0:				0x060 bytes
 * With prefetching, 16 word strides	0x120 bytes
 */
EXPORT(__clear_page_start)
LEAF(cpu_clear_page_function_name)
EXPORT_SYMBOL(cpu_clear_page_function_name)
1:	j	1b		/* Dummy, will be replaced. */
	.space 288
END(cpu_clear_page_function_name)
EXPORT(__clear_page_end)

/*
 * Maximum sizes:
 *
 * R4000 128 bytes S-cache:		0x11c bytes
 * R4600 v1.7:				0x080 bytes
 * R4600 v2.0:				0x07c bytes
 * With prefetching, 16 word strides	0x540 bytes
 */
EXPORT(__copy_page_start)
LEAF(cpu_copy_page_function_name)
EXPORT_SYMBOL(cpu_copy_page_function_name)
1:	j	1b		/* Dummy, will be replaced. */
	.space 1344
END(cpu_copy_page_function_name)
EXPORT(__copy_page_end)

Annotation

Implementation Notes