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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_POWERPC_AUXVEC_H
#define _ASM_POWERPC_AUXVEC_H
/*
* We need to put in some extra aux table entries to tell glibc what
* the cache block size is, so it can use the dcbz instruction safely.
*/
#define AT_DCACHEBSIZE 19
#define AT_ICACHEBSIZE 20
#define AT_UCACHEBSIZE 21
/* A special ignored type value for PPC, for glibc compatibility. */
#define AT_IGNOREPPC 22
/* The vDSO location. We have to use the same value as x86 for glibc's
* sake :-)
*/
#define AT_SYSINFO_EHDR 33
/*
* AT_*CACHEBSIZE above represent the cache *block* size which is
* the size that is affected by the cache management instructions.
*
* It doesn't nececssarily matches the cache *line* size which is
* more of a performance tuning hint. Additionally the latter can
* be different for the different cache levels.
*
* The set of entries below represent more extensive information
* about the caches, in the form of two entry per cache type,
* one entry containing the cache size in bytes, and the other
* containing the cache line size in bytes in the bottom 16 bits
* and the cache associativity in the next 16 bits.
*
* The associativity is such that if N is the 16-bit value, the
* cache is N way set associative. A value if 0xffff means fully
* associative, a value of 1 means directly mapped.
*
* For all these fields, a value of 0 means that the information
* is not known.
*/
#define AT_L1I_CACHESIZE 40
#define AT_L1I_CACHEGEOMETRY 41
#define AT_L1D_CACHESIZE 42
#define AT_L1D_CACHEGEOMETRY 43
#define AT_L2_CACHESIZE 44
#define AT_L2_CACHEGEOMETRY 45
#define AT_L3_CACHESIZE 46
#define AT_L3_CACHEGEOMETRY 47
#define AT_MINSIGSTKSZ 51 /* stack needed for signal delivery */
#define AT_VECTOR_SIZE_ARCH 15 /* entries in ARCH_DLINFO */
#endif
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