arch/sh/include/uapi/asm/auxvec.h

Source file repositories/reference/linux-study-clean/arch/sh/include/uapi/asm/auxvec.h

File Facts

System
Linux kernel
Corpus path
arch/sh/include/uapi/asm/auxvec.h
Extension
.h
Size
926 bytes
Lines
36
Domain
Architecture Layer
Bucket
arch/sh
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_SH_AUXVEC_H
#define __ASM_SH_AUXVEC_H

/*
 * Architecture-neutral AT_ values in 0-17, leave some room
 * for more of them.
 */

/*
 * This entry gives some information about the FPU initialization
 * performed by the kernel.
 */
#define AT_FPUCW		18	/* Used FPU control word.  */

/*
 * The entry point to the vsyscall page gets placed here.
 */
#define AT_SYSINFO_EHDR		33

/*
 * More complete cache descriptions than AT_[DIU]CACHEBSIZE.  If the
 * value is -1, then the cache doesn't exist.  Otherwise:
 *
 *    bit 0-3:	  Cache set-associativity; 0 means fully associative.
 *    bit 4-7:	  Log2 of cacheline size.
 *    bit 8-31:	  Size of the entire cache >> 8.
 */
#define AT_L1I_CACHESHAPE	34
#define AT_L1D_CACHESHAPE	35
#define AT_L2_CACHESHAPE	36

#define AT_VECTOR_SIZE_ARCH 5 /* entries in ARCH_DLINFO */

#endif /* __ASM_SH_AUXVEC_H */

Annotation

Implementation Notes