Initial commit: Linux kernel 4.19 for Unplugged OS

arch/nds32/include/uapi/asm/Kbuild

@@ -0,0 +1,29 @@
+# UAPI Header export list
+include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += bpf_perf_event.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += shmbuf.h
+generic-y += bitsperlong.h
+generic-y += fcntl.h
+generic-y += stat.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += swab.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h

arch/nds32/include/uapi/asm/auxvec.h

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __ASM_AUXVEC_H
+#define __ASM_AUXVEC_H
+
+/* VDSO location */
+#define AT_SYSINFO_EHDR	33
+
+#define AT_VECTOR_SIZE_ARCH 1
+
+#endif

arch/nds32/include/uapi/asm/byteorder.h

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __NDS32_BYTEORDER_H__
+#define __NDS32_BYTEORDER_H__
+
+#ifdef __NDS32_EB__
+#include <linux/byteorder/big_endian.h>
+#else
+#include <linux/byteorder/little_endian.h>
+#endif
+
+#endif /* __NDS32_BYTEORDER_H__ */

arch/nds32/include/uapi/asm/cachectl.h

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 1994, 1995, 1996 by Ralf Baechle
+// Copyright (C) 2005-2017 Andes Technology Corporation
+#ifndef	_ASM_CACHECTL
+#define	_ASM_CACHECTL
+
+/*
+ * Options for cacheflush system call
+ */
+#define	ICACHE	0		/* flush instruction cache        */
+#define	DCACHE	1		/* writeback and flush data cache */
+#define	BCACHE	2		/* flush instruction cache + writeback and flush data cache */
+
+#endif /* _ASM_CACHECTL */

arch/nds32/include/uapi/asm/param.h

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __ASM_NDS32_PARAM_H
+#define __ASM_NDS32_PARAM_H
+
+#define EXEC_PAGESIZE	8192
+
+#include <asm-generic/param.h>
+
+#endif /* __ASM_NDS32_PARAM_H */

arch/nds32/include/uapi/asm/ptrace.h

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __UAPI_ASM_NDS32_PTRACE_H
+#define __UAPI_ASM_NDS32_PTRACE_H
+
+#ifndef __ASSEMBLY__
+
+/*
+ * User structures for general purpose register.
+ */
+struct user_pt_regs {
+	long uregs[26];
+	long fp;
+	long gp;
+	long lp;
+	long sp;
+	long ipc;
+	long lb;
+	long le;
+	long lc;
+	long syscallno;
+};
+#endif
+#endif

arch/nds32/include/uapi/asm/sigcontext.h

@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef _ASMNDS32_SIGCONTEXT_H
+#define _ASMNDS32_SIGCONTEXT_H
+
+/*
+ * Signal context structure - contains all info to do with the state
+ * before the signal handler was invoked.  Note: only add new entries
+ * to the end of the structure.
+ */
+
+struct zol_struct {
+	unsigned long nds32_lc;	/* $LC */
+	unsigned long nds32_le;	/* $LE */
+	unsigned long nds32_lb;	/* $LB */
+};
+
+struct sigcontext {
+	unsigned long trap_no;
+	unsigned long error_code;
+	unsigned long oldmask;
+	unsigned long nds32_r0;
+	unsigned long nds32_r1;
+	unsigned long nds32_r2;
+	unsigned long nds32_r3;
+	unsigned long nds32_r4;
+	unsigned long nds32_r5;
+	unsigned long nds32_r6;
+	unsigned long nds32_r7;
+	unsigned long nds32_r8;
+	unsigned long nds32_r9;
+	unsigned long nds32_r10;
+	unsigned long nds32_r11;
+	unsigned long nds32_r12;
+	unsigned long nds32_r13;
+	unsigned long nds32_r14;
+	unsigned long nds32_r15;
+	unsigned long nds32_r16;
+	unsigned long nds32_r17;
+	unsigned long nds32_r18;
+	unsigned long nds32_r19;
+	unsigned long nds32_r20;
+	unsigned long nds32_r21;
+	unsigned long nds32_r22;
+	unsigned long nds32_r23;
+	unsigned long nds32_r24;
+	unsigned long nds32_r25;
+	unsigned long nds32_fp;	/* $r28 */
+	unsigned long nds32_gp;	/* $r29 */
+	unsigned long nds32_lp;	/* $r30 */
+	unsigned long nds32_sp;	/* $r31 */
+	unsigned long nds32_ipc;
+	unsigned long fault_address;
+	unsigned long used_math_flag;
+	/* FPU Registers */
+	struct zol_struct zol;
+};
+
+#endif

arch/nds32/include/uapi/asm/unistd.h

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#define __ARCH_WANT_SYNC_FILE_RANGE2
+
+/* Use the standard ABI for syscalls */
+#include <asm-generic/unistd.h>
+
+/* Additional NDS32 specific syscalls. */
+#define __NR_cacheflush		(__NR_arch_specific_syscall)
+__SYSCALL(__NR_cacheflush, sys_cacheflush)