arch/xtensa/include/asm/vectors.h

Source file repositories/reference/linux-study-clean/arch/xtensa/include/asm/vectors.h

File Facts

System
Linux kernel
Corpus path
arch/xtensa/include/asm/vectors.h
Extension
.h
Size
3276 bytes
Lines
94
Domain
Architecture Layer
Bucket
arch/xtensa
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 _XTENSA_VECTORS_H
#define _XTENSA_VECTORS_H

#include <asm/core.h>
#include <asm/kmem_layout.h>

#if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
#ifdef CONFIG_KERNEL_VIRTUAL_ADDRESS
#define KERNELOFFSET			CONFIG_KERNEL_VIRTUAL_ADDRESS
#else
#define KERNELOFFSET			(CONFIG_KERNEL_LOAD_ADDRESS + \
					 XCHAL_KSEG_CACHED_VADDR - \
					 XCHAL_KSEG_PADDR)
#endif
#else
#define KERNELOFFSET			CONFIG_KERNEL_LOAD_ADDRESS
#endif

#define RESET_VECTOR1_VADDR		(XCHAL_RESET_VECTOR1_VADDR)
#ifdef CONFIG_VECTORS_ADDR
#define VECBASE_VADDR			(CONFIG_VECTORS_ADDR)
#else
#define VECBASE_VADDR			_vecbase
#endif

#if XCHAL_HAVE_VECBASE

#define VECTOR_VADDR(offset)		(VECBASE_VADDR + offset)

#define USER_VECTOR_VADDR		VECTOR_VADDR(XCHAL_USER_VECOFS)
#define KERNEL_VECTOR_VADDR		VECTOR_VADDR(XCHAL_KERNEL_VECOFS)
#define DOUBLEEXC_VECTOR_VADDR		VECTOR_VADDR(XCHAL_DOUBLEEXC_VECOFS)
#define WINDOW_VECTORS_VADDR		VECTOR_VADDR(XCHAL_WINDOW_OF4_VECOFS)
#define INTLEVEL2_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL2_VECOFS)
#define INTLEVEL3_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL3_VECOFS)
#define INTLEVEL4_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL4_VECOFS)
#define INTLEVEL5_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL5_VECOFS)
#define INTLEVEL6_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL6_VECOFS)
#define INTLEVEL7_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL7_VECOFS)
#define DEBUG_VECTOR_VADDR		VECTOR_VADDR(XCHAL_DEBUG_VECOFS)

/*
 * These XCHAL_* #defines from varian/core.h
 * are not valid to use with V3 MMU. Non-XCHAL
 * constants are defined above and should be used.
 */
#undef  XCHAL_VECBASE_RESET_VADDR
#undef  XCHAL_USER_VECTOR_VADDR
#undef  XCHAL_KERNEL_VECTOR_VADDR
#undef  XCHAL_DOUBLEEXC_VECTOR_VADDR
#undef  XCHAL_WINDOW_VECTORS_VADDR
#undef  XCHAL_INTLEVEL2_VECTOR_VADDR
#undef  XCHAL_INTLEVEL3_VECTOR_VADDR
#undef  XCHAL_INTLEVEL4_VECTOR_VADDR
#undef  XCHAL_INTLEVEL5_VECTOR_VADDR
#undef  XCHAL_INTLEVEL6_VECTOR_VADDR
#undef  XCHAL_INTLEVEL7_VECTOR_VADDR
#undef  XCHAL_DEBUG_VECTOR_VADDR

#else

#define USER_VECTOR_VADDR		XCHAL_USER_VECTOR_VADDR
#define KERNEL_VECTOR_VADDR		XCHAL_KERNEL_VECTOR_VADDR
#define DOUBLEEXC_VECTOR_VADDR		XCHAL_DOUBLEEXC_VECTOR_VADDR
#define WINDOW_VECTORS_VADDR		XCHAL_WINDOW_VECTORS_VADDR
#define INTLEVEL2_VECTOR_VADDR		XCHAL_INTLEVEL2_VECTOR_VADDR
#define INTLEVEL3_VECTOR_VADDR		XCHAL_INTLEVEL3_VECTOR_VADDR
#define INTLEVEL4_VECTOR_VADDR		XCHAL_INTLEVEL4_VECTOR_VADDR
#define INTLEVEL5_VECTOR_VADDR		XCHAL_INTLEVEL5_VECTOR_VADDR
#define INTLEVEL6_VECTOR_VADDR		XCHAL_INTLEVEL6_VECTOR_VADDR
#define INTLEVEL7_VECTOR_VADDR		XCHAL_INTLEVEL6_VECTOR_VADDR
#define DEBUG_VECTOR_VADDR		XCHAL_DEBUG_VECTOR_VADDR

#endif

#endif /* _XTENSA_VECTORS_H */

Annotation

Implementation Notes