arch/mips/include/asm/sgialib.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/sgialib.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/sgialib.h
Extension
.h
Size
1743 bytes
Lines
62
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

#ifndef _ASM_SGIALIB_H
#define _ASM_SGIALIB_H

#include <linux/compiler.h>
#include <asm/sgiarcs.h>

extern struct linux_romvec *romvec;

extern int prom_flags;

#define PROM_FLAG_ARCS			1
#define PROM_FLAG_USE_AS_CONSOLE	2
#define PROM_FLAG_DONT_FREE_TEMP	4

/* Simple char-by-char console I/O. */
extern char prom_getchar(void);

/* Get next memory descriptor after CURR, returns first descriptor
 * in chain is CURR is NULL.
 */
extern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr);
#define PROM_NULL_MDESC	  ((struct linux_mdesc *) 0)

/* Called by prom_init to setup the physical memory pmemblock
 * array.
 */
extern void prom_meminit(void);

/* PROM device tree library routines. */
#define PROM_NULL_COMPONENT ((pcomponent *) 0)

/* This is called at prom_init time to identify the
 * ARC architecture we are running on
 */
extern void prom_identify_arch(void);

/* Environment variable routines. */
extern PCHAR ArcGetEnvironmentVariable(PCHAR name);

/* ARCS command line parsing. */
extern void prom_init_cmdline(int argc, LONG *argv);

/* File operations. */
extern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
extern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt);

/* Misc. routines. */
extern VOID ArcEnterInteractiveMode(VOID) __noreturn;
extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID);

#endif /* _ASM_SGIALIB_H */

Annotation

Implementation Notes