1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * Author: Hanlu Li <lihanlu@loongson.cn> 4 * Huacai Chen <chenhuacai@loongson.cn> 5 * 6 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 7 */ 8 #ifndef _UAPI_ASM_SIGCONTEXT_H 9 #define _UAPI_ASM_SIGCONTEXT_H 10 11 #include <linux/types.h> 12 #include <linux/posix_types.h> 13 14 /* FP context was used */ 15 #define SC_USED_FP (1 << 0) 16 /* Address error was due to memory load */ 17 #define SC_ADDRERR_RD (1 << 30) 18 /* Address error was due to memory store */ 19 #define SC_ADDRERR_WR (1 << 31) 20 21 struct sigcontext { 22 __u64 sc_pc; 23 __u64 sc_regs[32]; 24 __u32 sc_flags; 25 __u64 sc_extcontext[0] __attribute__((__aligned__(16))); 26 }; 27 28 #define CONTEXT_INFO_ALIGN 16 29 struct sctx_info { 30 __u32 magic; 31 __u32 size; 32 __u64 padding; /* padding to 16 bytes */ 33 }; 34 35 /* FPU context */ 36 #define FPU_CTX_MAGIC 0x46505501 37 #define FPU_CTX_ALIGN 8 38 struct fpu_context { 39 __u64 regs[32]; 40 __u64 fcc; 41 __u32 fcsr; 42 }; 43 44 /* LSX context */ 45 #define LSX_CTX_MAGIC 0x53580001 46 #define LSX_CTX_ALIGN 16 47 struct lsx_context { 48 __u64 regs[2*32]; 49 __u64 fcc; 50 __u32 fcsr; 51 }; 52 53 /* LASX context */ 54 #define LASX_CTX_MAGIC 0x41535801 55 #define LASX_CTX_ALIGN 32 56 struct lasx_context { 57 __u64 regs[4*32]; 58 __u64 fcc; 59 __u32 fcsr; 60 }; 61 62 #endif /* _UAPI_ASM_SIGCONTEXT_H */ 63