diff options
Diffstat (limited to 'arch/riscv/include/uapi/asm/auxvec.h')
| -rw-r--r-- | arch/riscv/include/uapi/asm/auxvec.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/riscv/include/uapi/asm/auxvec.h b/arch/riscv/include/uapi/asm/auxvec.h index 22e0ae888406..32c73ba1d531 100644 --- a/arch/riscv/include/uapi/asm/auxvec.h +++ b/arch/riscv/include/uapi/asm/auxvec.h @@ -10,7 +10,28 @@ /* vDSO location */ #define AT_SYSINFO_EHDR 33 +/* + * 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 + /* entries in ARCH_DLINFO */ -#define AT_VECTOR_SIZE_ARCH 1 +#define AT_VECTOR_SIZE_ARCH 7 #endif /* _UAPI_ASM_RISCV_AUXVEC_H */ |