1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef __ASM_SIGCONTEXT_H 7 #define __ASM_SIGCONTEXT_H 8 #ifndef __ASSEMBLY__ 9 #include <linux/types.h> 10 struct sigcontext { 11 __u64 fault_address; 12 13 __u64 regs[31]; 14 __u64 sp; 15 __u64 pc; 16 __u64 pstate; 17 18 __u8 __reserved[4096] __attribute__((__aligned__(16))); 19 }; 20 struct _aarch64_ctx { 21 __u32 magic; 22 __u32 size; 23 }; 24 #define FPSIMD_MAGIC 0x46508001 25 struct fpsimd_context { 26 struct _aarch64_ctx head; 27 __u32 fpsr; 28 __u32 fpcr; 29 __uint128_t vregs[32]; 30 }; 31 #define ESR_MAGIC 0x45535201 32 struct esr_context { 33 struct _aarch64_ctx head; 34 __u64 esr; 35 }; 36 #define EXTRA_MAGIC 0x45585401 37 struct extra_context { 38 struct _aarch64_ctx head; 39 __u64 datap; 40 __u32 size; 41 __u32 __reserved[3]; 42 }; 43 #define SVE_MAGIC 0x53564501 44 struct sve_context { 45 struct _aarch64_ctx head; 46 __u16 vl; 47 __u16 __reserved[3]; 48 }; 49 #endif 50 #define SVE_VQ_BYTES 16 51 #define SVE_VQ_MIN 1 52 #define SVE_VQ_MAX 512 53 #define SVE_VL_MIN (SVE_VQ_MIN * SVE_VQ_BYTES) 54 #define SVE_VL_MAX (SVE_VQ_MAX * SVE_VQ_BYTES) 55 #define SVE_NUM_ZREGS 32 56 #define SVE_NUM_PREGS 16 57 #define sve_vl_valid(vl) \ 58 ((vl) % SVE_VQ_BYTES == 0 && (vl) >= SVE_VL_MIN && (vl) <= SVE_VL_MAX) 59 #define sve_vq_from_vl(vl) ((vl) / SVE_VQ_BYTES) 60 #define sve_vl_from_vq(vq) ((vq) * SVE_VQ_BYTES) 61 #define SVE_SIG_ZREG_SIZE(vq) ((__u32)(vq) * SVE_VQ_BYTES) 62 #define SVE_SIG_PREG_SIZE(vq) ((__u32)(vq) * (SVE_VQ_BYTES / 8)) 63 #define SVE_SIG_FFR_SIZE(vq) SVE_SIG_PREG_SIZE(vq) 64 #define SVE_SIG_REGS_OFFSET \ 65 ((sizeof(struct sve_context) + (SVE_VQ_BYTES - 1)) \ 66 / SVE_VQ_BYTES * SVE_VQ_BYTES) 67 #define SVE_SIG_ZREGS_OFFSET SVE_SIG_REGS_OFFSET 68 #define SVE_SIG_ZREG_OFFSET(vq, n) \ 69 (SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREG_SIZE(vq) * (n)) 70 #define SVE_SIG_ZREGS_SIZE(vq) \ 71 (SVE_SIG_ZREG_OFFSET(vq, SVE_NUM_ZREGS) - SVE_SIG_ZREGS_OFFSET) 72 #define SVE_SIG_PREGS_OFFSET(vq) \ 73 (SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREGS_SIZE(vq)) 74 #define SVE_SIG_PREG_OFFSET(vq, n) \ 75 (SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREG_SIZE(vq) * (n)) 76 #define SVE_SIG_PREGS_SIZE(vq) \ 77 (SVE_SIG_PREG_OFFSET(vq, SVE_NUM_PREGS) - SVE_SIG_PREGS_OFFSET(vq)) 78 #define SVE_SIG_FFR_OFFSET(vq) \ 79 (SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREGS_SIZE(vq)) 80 #define SVE_SIG_REGS_SIZE(vq) \ 81 (SVE_SIG_FFR_OFFSET(vq) + SVE_SIG_FFR_SIZE(vq) - SVE_SIG_REGS_OFFSET) 82 #define SVE_SIG_CONTEXT_SIZE(vq) (SVE_SIG_REGS_OFFSET + SVE_SIG_REGS_SIZE(vq)) 83 #endif 84