1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2012 ARM Ltd. 4*4882a593Smuzhiyun * Copyright (C) 2015 Regents of the University of California 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef _UAPI_ASM_RISCV_AUXVEC_H 8*4882a593Smuzhiyun #define _UAPI_ASM_RISCV_AUXVEC_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun /* vDSO location */ 11*4882a593Smuzhiyun #define AT_SYSINFO_EHDR 33 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* 14*4882a593Smuzhiyun * The set of entries below represent more extensive information 15*4882a593Smuzhiyun * about the caches, in the form of two entry per cache type, 16*4882a593Smuzhiyun * one entry containing the cache size in bytes, and the other 17*4882a593Smuzhiyun * containing the cache line size in bytes in the bottom 16 bits 18*4882a593Smuzhiyun * and the cache associativity in the next 16 bits. 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun * The associativity is such that if N is the 16-bit value, the 21*4882a593Smuzhiyun * cache is N way set associative. A value if 0xffff means fully 22*4882a593Smuzhiyun * associative, a value of 1 means directly mapped. 23*4882a593Smuzhiyun * 24*4882a593Smuzhiyun * For all these fields, a value of 0 means that the information 25*4882a593Smuzhiyun * is not known. 26*4882a593Smuzhiyun */ 27*4882a593Smuzhiyun #define AT_L1I_CACHESIZE 40 28*4882a593Smuzhiyun #define AT_L1I_CACHEGEOMETRY 41 29*4882a593Smuzhiyun #define AT_L1D_CACHESIZE 42 30*4882a593Smuzhiyun #define AT_L1D_CACHEGEOMETRY 43 31*4882a593Smuzhiyun #define AT_L2_CACHESIZE 44 32*4882a593Smuzhiyun #define AT_L2_CACHEGEOMETRY 45 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* entries in ARCH_DLINFO */ 35*4882a593Smuzhiyun #define AT_VECTOR_SIZE_ARCH 7 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #endif /* _UAPI_ASM_RISCV_AUXVEC_H */ 38