1 files changed, 78 insertions, 0 deletions
diff --git a/arch/loongarch/include/uapi/asm/ptrace.h b/arch/loongarch/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000..ac915f841
--- /dev/null
+++ b/arch/loongarch/include/uapi/asm/ptrace.h
@@ -0,0 +1,78 @@
+/* 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_PTRACE_H
+#define _UAPI_ASM_PTRACE_H
+
+#include <linux/types.h>
+
+#ifndef __KERNEL__
+#include <stdint.h>
+#endif
+
+/*
+ * For PTRACE_{POKE,PEEK}USR. 0 - 31 are GPRs,
+ * 32 is syscall's original ARG0, 33 is PC, 34 is BADVADDR.
+ */
+#define GPR_BASE	0
+#define GPR_NUM		32
+#define GPR_END		(GPR_BASE + GPR_NUM - 1)
+#define ARG0		(GPR_END + 1)
+#define PC		(GPR_END + 2)
+#define BADVADDR	(GPR_END + 3)
+
+#define NUM_FPU_REGS	32
+
+struct user_pt_regs {
+	/* Main processor registers. */
+	unsigned long regs[32];
+
+	/* Original syscall arg0. */
+	unsigned long orig_a0;
+
+	/* Special CSR registers. */
+	unsigned long csr_era;
+	unsigned long csr_badv;
+	unsigned long reserved[10];
+} __attribute__((aligned(8)));
+
+struct user_fp_state {
+	uint64_t fpr[32];
+	uint64_t fcc;
+	uint32_t fcsr;
+};
+
+struct user_lsx_state {
+	/* 32 registers, 128 bits width per register. */
+	uint64_t vregs[32*2];
+};
+
+struct user_lasx_state {
+	/* 32 registers, 256 bits width per register. */
+	uint64_t vregs[32*4];
+};
+
+struct user_lbt_state {
+	uint64_t scr[4];
+	uint32_t eflags;
+	uint32_t ftop;
+};
+
+struct user_watch_state {
+	uint64_t dbg_info;
+	struct {
+		uint64_t    addr;
+		uint64_t    mask;
+		uint32_t    ctrl;
+		uint32_t    pad;
+	} dbg_regs[8];
+};
+
+#define PTRACE_SYSEMU			0x1f
+#define PTRACE_SYSEMU_SINGLESTEP	0x20
+
+#endif /* _UAPI_ASM_PTRACE_H */