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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* Author: Hanlu Li <lihanlu@loongson.cn>
* Huacai Chen <chenhuacai@loongson.cn>
*
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
*/
#ifndef _UAPI_ASM_SIGCONTEXT_H
#define _UAPI_ASM_SIGCONTEXT_H
#include <linux/types.h>
/* FP context was used */
#define SC_USED_FP (1 << 0)
/* Address error was due to memory load */
#define SC_ADDRERR_RD (1 << 30)
/* Address error was due to memory store */
#define SC_ADDRERR_WR (1 << 31)
struct sigcontext {
__u64 sc_pc;
__u64 sc_regs[32];
__u32 sc_flags;
__u64 sc_extcontext[0] __attribute__((__aligned__(16)));
};
#define CONTEXT_INFO_ALIGN 16
struct sctx_info {
__u32 magic;
__u32 size;
__u64 padding; /* padding to 16 bytes */
};
/* FPU context */
#define FPU_CTX_MAGIC 0x46505501
#define FPU_CTX_ALIGN 8
struct fpu_context {
__u64 regs[32];
__u64 fcc;
__u32 fcsr;
};
/* LSX context */
#define LSX_CTX_MAGIC 0x53580001
#define LSX_CTX_ALIGN 16
struct lsx_context {
__u64 regs[2*32];
__u64 fcc;
__u32 fcsr;
};
/* LASX context */
#define LASX_CTX_MAGIC 0x41535801
#define LASX_CTX_ALIGN 32
struct lasx_context {
__u64 regs[4*32];
__u64 fcc;
__u32 fcsr;
};
/* LBT context */
#define LBT_CTX_MAGIC 0x42540001
#define LBT_CTX_ALIGN 8
struct lbt_context {
__u64 regs[4];
__u32 eflags;
__u32 ftop;
};
#endif /* _UAPI_ASM_SIGCONTEXT_H */
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