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Date: Mon, 19 Mar 2018 03:51:36 +0800
From: Guo Ren <ren_guo@...ky.com>
To: linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
tglx@...utronix.de, daniel.lezcano@...aro.org,
jason@...edaemon.net, arnd@...db.de
Cc: c-sky_gcc_upstream@...ky.com, gnu-csky@...tor.com,
thomas.petazzoni@...tlin.com, wbx@...ibc-ng.org,
Guo Ren <ren_guo@...ky.com>
Subject: [PATCH 14/19] csky: Misc headers
Signed-off-by: Guo Ren <ren_guo@...ky.com>
---
arch/csky/abiv1/inc/abi/reg_ops.h | 79 +++++++++
arch/csky/abiv1/inc/abi/regdef.h | 27 +++
arch/csky/abiv2/inc/abi/fpu.h | 296 +++++++++++++++++++++++++++++++++
arch/csky/abiv2/inc/abi/reg_ops.h | 86 ++++++++++
arch/csky/abiv2/inc/abi/regdef.h | 28 ++++
arch/csky/include/uapi/asm/byteorder.h | 14 ++
arch/csky/include/uapi/asm/fcntl.h | 13 ++
arch/csky/include/uapi/asm/stat.h | 86 ++++++++++
8 files changed, 629 insertions(+)
create mode 100644 arch/csky/abiv1/inc/abi/reg_ops.h
create mode 100644 arch/csky/abiv1/inc/abi/regdef.h
create mode 100644 arch/csky/abiv2/inc/abi/fpu.h
create mode 100644 arch/csky/abiv2/inc/abi/reg_ops.h
create mode 100644 arch/csky/abiv2/inc/abi/regdef.h
create mode 100644 arch/csky/include/uapi/asm/byteorder.h
create mode 100644 arch/csky/include/uapi/asm/fcntl.h
create mode 100644 arch/csky/include/uapi/asm/stat.h
diff --git a/arch/csky/abiv1/inc/abi/reg_ops.h b/arch/csky/abiv1/inc/abi/reg_ops.h
new file mode 100644
index 0000000..224acff
--- /dev/null
+++ b/arch/csky/abiv1/inc/abi/reg_ops.h
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_REG_OPS_H
+#define __ASM_REG_OPS_H
+
+static inline unsigned int mfcr_cpuidrr(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr13\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_hint(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr30\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_ccr(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr18\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_msa0(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "cprcr %0, cpcr30\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline void mtcr_msa0(unsigned int value)
+{
+ asm volatile(
+ "cpwcr %0, cpcr30\t\n"
+ ::"r"(value));
+}
+
+static inline unsigned int mfcr_msa1(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "cprcr %0, cpcr31\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline void mtcr_msa1(unsigned int value)
+{
+ asm volatile(
+ "cpwcr %0, cpcr31\t\n"
+ ::"r"(value));
+}
+
+static inline unsigned int mfcr_ccr2(void){return 0;}
+
+/* read/write user stack pointer */
+static inline unsigned long rdusp(void) {
+ register unsigned long usp;
+ asm volatile("mfcr %0, ss1\n\r":"=r"(usp));
+ return usp;
+}
+
+static inline void wrusp(unsigned long usp) {
+ asm volatile("mtcr %0, ss1\n\r"::"r"(usp));
+}
+
+#endif /* __ASM_REG_OPS_H */
+
diff --git a/arch/csky/abiv1/inc/abi/regdef.h b/arch/csky/abiv1/inc/abi/regdef.h
new file mode 100644
index 0000000..f694e8e
--- /dev/null
+++ b/arch/csky/abiv1/inc/abi/regdef.h
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_CSKY_REGDEF_H
+#define __ASM_CSKY_REGDEF_H
+
+#define syscallid r1
+#define r11_sig r11
+
+#define DEFAULT_PSR_VALUE 0x8f000000
+
+#define PTRACE_REGOFF_ABI \
+{ \
+ -1, PT_REGS9, PT_A0, PT_A1,\
+ PT_A2, PT_A3, PT_REGS0, PT_REGS1,\
+ PT_REGS2, PT_REGS3, PT_REGS4, PT_REGS5,\
+ PT_REGS6, PT_REGS7, PT_REGS8, PT_R15,\
+ -1, -1, -1, -1,\
+ -1, -1, -1, -1,\
+ -1, -1, -1, -1,\
+ -1, -1, -1, -1,\
+ PT_SR, PT_PC, -1, -1,\
+}
+
+#define SYSTRACE_SAVENUM 2
+#define REGNO_USP 0
+
+#endif /* __ASM_CSKY_REGDEF_H */
diff --git a/arch/csky/abiv2/inc/abi/fpu.h b/arch/csky/abiv2/inc/abi/fpu.h
new file mode 100644
index 0000000..5f82f04
--- /dev/null
+++ b/arch/csky/abiv2/inc/abi/fpu.h
@@ -0,0 +1,296 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_CSKY_FPU_H
+#define __ASM_CSKY_FPU_H
+
+#ifndef __ASSEMBLY__ /* C source */
+
+#include <asm/sigcontext.h>
+#include <asm/ptrace.h>
+
+int fpu_libc_helper(struct pt_regs *regs);
+void fpu_fpe(struct pt_regs *regs);
+void __init init_fpu(void);
+
+int restore_fpu_state(struct sigcontext *sc);
+int save_fpu_state(struct sigcontext *sc, struct pt_regs *regs);
+
+/*
+ * Define the fesr bit for fpe handle.
+ */
+#define FPE_ILLE (1 << 16) /* Illegal instruction */
+#define FPE_FEC (1 << 7) /* Input float-point arithmetic exception */
+#define FPE_IDC (1 << 5) /* Input denormalized exception */
+#define FPE_IXC (1 << 4) /* Inexact exception */
+#define FPE_UFC (1 << 3) /* Underflow exception */
+#define FPE_OFC (1 << 2) /* Overflow exception */
+#define FPE_DZC (1 << 1) /* Divide by zero exception */
+#define FPE_IOC (1 << 0) /* Invalid operation exception */
+#define FPE_REGULAR_EXCEPTION (FPE_IXC | FPE_UFC | FPE_OFC | FPE_DZC | FPE_IOC)
+
+#ifdef CONFIG_OPEN_FPU_IDE
+#define IDE_STAT (1 << 5)
+#else
+#define IDE_STAT 0
+#endif
+
+#ifdef CONFIG_OPEN_FPU_IXE
+#define IXE_STAT (1 << 4)
+#else
+#define IXE_STAT 0
+#endif
+
+#ifdef CONFIG_OPEN_FPU_UFE
+#define UFE_STAT (1 << 3)
+#else
+#define UFE_STAT 0
+#endif
+
+#ifdef CONFIG_OPEN_FPU_OFE
+#define OFE_STAT (1 << 2)
+#else
+#define OFE_STAT 0
+#endif
+
+#ifdef CONFIG_OPEN_FPU_DZE
+#define DZE_STAT (1 << 1)
+#else
+#define DZE_STAT 0
+#endif
+
+#ifdef CONFIG_OPEN_FPU_IOE
+#define IOE_STAT (1 << 0)
+#else
+#define IOE_STAT 0
+#endif
+
+#define FMFS_FPU_REGS(frw, frx, fry, frz) \
+ "fmfs %0, "#frw" \n" \
+ "fmfs %1, "#frx" \n" \
+ "fmfs %2, "#fry" \n" \
+ "fmfs %3, "#frz" \n"
+
+#define FMTS_FPU_REGS(frw, frx, fry, frz) \
+ "fmts %0, "#frw" \n" \
+ "fmts %1, "#frx" \n" \
+ "fmts %2, "#fry" \n" \
+ "fmts %3, "#frz" \n"
+
+#define FMFVR_FPU_REGS(vrx, vry) \
+ "fmfvrl %0, "#vrx" \n" \
+ "fmfvrh %1, "#vrx" \n" \
+ "fmfvrl %2, "#vry" \n" \
+ "fmfvrh %3, "#vry" \n"
+
+#define FMTVR_FPU_REGS(vrx, vry) \
+ "fmtvrl "#vrx", %0 \n" \
+ "fmtvrh "#vrx", %1 \n" \
+ "fmtvrl "#vry", %2 \n" \
+ "fmtvrh "#vry", %3 \n"
+
+#define STW_FPU_REGS(a, b, c, d) \
+ "stw %0, (%4, "#a") \n" \
+ "stw %1, (%4, "#b") \n" \
+ "stw %2, (%4, "#c") \n" \
+ "stw %3, (%4, "#d") \n"
+
+#define LDW_FPU_REGS(a, b, c, d) \
+ "ldw %0, (%4, "#a") \n" \
+ "ldw %1, (%4, "#b") \n" \
+ "ldw %2, (%4, "#c") \n" \
+ "ldw %3, (%4, "#d") \n"
+
+static inline void save_fp_to_thread(unsigned long * fpregs,
+ unsigned long * fcr, unsigned long * fsr, unsigned long * fesr)
+{
+ unsigned long flg;
+ unsigned long tmp1, tmp2, tmp3, tmp4;
+
+ local_save_flags(flg);
+
+ asm volatile(
+ "mfcr %0, cr<1, 2> \n"
+ "mfcr %1, cr<2, 2> \n"
+ :"+r"(tmp1),"+r"(tmp2));
+
+ *fcr = tmp1;
+ /* not use in fpuv2 */
+ *fsr = 0;
+ *fesr = tmp2;
+ asm volatile(
+ FMFVR_FPU_REGS(vr0, vr1)
+ STW_FPU_REGS(0, 4, 8, 12)
+ FMFVR_FPU_REGS(vr2, vr3)
+ STW_FPU_REGS(16, 20, 24, 28)
+ FMFVR_FPU_REGS(vr4, vr5)
+ STW_FPU_REGS(32, 36, 40, 44)
+ FMFVR_FPU_REGS(vr6, vr7)
+ STW_FPU_REGS(48, 52, 56, 60)
+ "addi %4, 32 \n"
+ "addi %4, 32 \n"
+ FMFVR_FPU_REGS(vr8, vr9)
+ STW_FPU_REGS(0, 4, 8, 12)
+ FMFVR_FPU_REGS(vr10, vr11)
+ STW_FPU_REGS(16, 20, 24, 28)
+ FMFVR_FPU_REGS(vr12, vr13)
+ STW_FPU_REGS(32, 36, 40, 44)
+ FMFVR_FPU_REGS(vr14, vr15)
+ STW_FPU_REGS(48, 52, 56, 60)
+ :"=a"(tmp1),"=a"(tmp2),"=a"(tmp3),
+ "=a"(tmp4),"+a"(fpregs));
+ local_irq_restore(flg);
+}
+
+#else /* __ASSEMBLY__ */
+
+#include <asm/asm-offsets.h>
+
+.macro FPU_SAVE_REGS
+ /* Save FPU control regs task struct */
+ mfcr r7, cr<1, 2>
+ mfcr r6, cr<2, 2>
+ stw r7, (a3, THREAD_FCR)
+ stw r6, (a3, THREAD_FESR)
+ /* Save FPU general regs task struct */
+ fmfvrl r6, vr0
+ fmfvrh r7, vr0
+ fmfvrl r8, vr1
+ fmfvrh r9, vr1
+ stw r6, (a3, THREAD_FPREG + 0) /* In aviv2: stw can load longer */
+ stw r7, (a3, THREAD_FPREG + 4)
+ stw r8, (a3, THREAD_FPREG + 8)
+ stw r9, (a3, THREAD_FPREG + 12)
+ fmfvrl r6, vr2
+ fmfvrh r7, vr2
+ fmfvrl r8, vr3
+ fmfvrh r9, vr3
+ stw r6, (a3, THREAD_FPREG + 16)
+ stw r7, (a3, THREAD_FPREG + 20)
+ stw r8, (a3, THREAD_FPREG + 24)
+ stw r9, (a3, THREAD_FPREG + 28)
+ fmfvrl r6, vr4
+ fmfvrh r7, vr4
+ fmfvrl r8, vr5
+ fmfvrh r9, vr5
+ stw r6, (a3, THREAD_FPREG + 32)
+ stw r7, (a3, THREAD_FPREG + 36)
+ stw r8, (a3, THREAD_FPREG + 40)
+ stw r9, (a3, THREAD_FPREG + 44)
+ fmfvrl r6, vr6
+ fmfvrh r7, vr6
+ fmfvrl r8, vr7
+ fmfvrh r9, vr7
+ stw r6, (a3, THREAD_FPREG + 48)
+ stw r7, (a3, THREAD_FPREG + 52)
+ stw r8, (a3, THREAD_FPREG + 56)
+ stw r9, (a3, THREAD_FPREG + 60)
+ fmfvrl r6, vr8
+ fmfvrh r7, vr8
+ fmfvrl r8, vr9
+ fmfvrh r9, vr9
+ stw r6, (a3, THREAD_FPREG + 64)
+ stw r7, (a3, THREAD_FPREG + 68)
+ stw r8, (a3, THREAD_FPREG + 72)
+ stw r9, (a3, THREAD_FPREG + 76)
+ fmfvrl r6, vr10
+ fmfvrh r7, vr10
+ fmfvrl r8, vr11
+ fmfvrh r9, vr11
+ stw r6, (a3, THREAD_FPREG + 80)
+ stw r7, (a3, THREAD_FPREG + 84)
+ stw r8, (a3, THREAD_FPREG + 88)
+ stw r9, (a3, THREAD_FPREG + 92)
+ fmfvrl r6, vr12
+ fmfvrh r7, vr12
+ fmfvrl r8, vr13
+ fmfvrh r9, vr13
+ stw r6, (a3, THREAD_FPREG + 96)
+ stw r7, (a3, THREAD_FPREG + 100)
+ stw r8, (a3, THREAD_FPREG + 104)
+ stw r9, (a3, THREAD_FPREG + 108)
+ fmfvrl r6, vr14
+ fmfvrh r7, vr14
+ fmfvrl r8, vr15
+ fmfvrh r9, vr15
+ stw r6, (a3, THREAD_FPREG + 112)
+ stw r7, (a3, THREAD_FPREG + 116)
+ stw r8, (a3, THREAD_FPREG + 120)
+ stw r9, (a3, THREAD_FPREG + 124)
+.endm
+
+.macro FPU_RESTORE_REGS
+ /* Save FPU control regs task struct */
+ ldw r6, (a3, THREAD_FCR)
+ ldw r7, (a3, THREAD_FESR)
+ mtcr r6, cr<1, 2>
+ mtcr r7, cr<2, 2>
+ /* restore FPU general regs task struct */
+ ldw r6, (a3, THREAD_FPREG + 0)
+ ldw r7, (a3, THREAD_FPREG + 4)
+ ldw r8, (a3, THREAD_FPREG + 8)
+ ldw r9, (a3, THREAD_FPREG + 12)
+ fmtvrl vr0, r6
+ fmtvrh vr0, r7
+ fmtvrl vr1, r8
+ fmtvrh vr1, r9
+ ldw r6, (a3, THREAD_FPREG + 16)
+ ldw r7, (a3, THREAD_FPREG + 20)
+ ldw r8, (a3, THREAD_FPREG + 24)
+ ldw r9, (a3, THREAD_FPREG + 28)
+ fmtvrl vr2, r6
+ fmtvrh vr2, r7
+ fmtvrl vr3, r8
+ fmtvrh vr3, r9
+ ldw r6, (a3, THREAD_FPREG + 32)
+ ldw r7, (a3, THREAD_FPREG + 36)
+ ldw r8, (a3, THREAD_FPREG + 40)
+ ldw r9, (a3, THREAD_FPREG + 44)
+ fmtvrl vr4, r6
+ fmtvrh vr4, r7
+ fmtvrl vr5, r8
+ fmtvrh vr5, r9
+ ldw r6, (a3, THREAD_FPREG + 48)
+ ldw r7, (a3, THREAD_FPREG + 52)
+ ldw r8, (a3, THREAD_FPREG + 56)
+ ldw r9, (a3, THREAD_FPREG + 60)
+ fmtvrl vr6, r6
+ fmtvrh vr6, r7
+ fmtvrl vr7, r8
+ fmtvrh vr7, r9
+ ldw r6, (a3, THREAD_FPREG + 64)
+ ldw r7, (a3, THREAD_FPREG + 68)
+ ldw r8, (a3, THREAD_FPREG + 72)
+ ldw r9, (a3, THREAD_FPREG + 76)
+ fmtvrl vr8, r6
+ fmtvrh vr8, r7
+ fmtvrl vr9, r8
+ fmtvrh vr9, r9
+ ldw r6, (a3, THREAD_FPREG + 80)
+ ldw r7, (a3, THREAD_FPREG + 84)
+ ldw r8, (a3, THREAD_FPREG + 88)
+ ldw r9, (a3, THREAD_FPREG + 92)
+ fmtvrl vr10, r6
+ fmtvrh vr10, r7
+ fmtvrl vr11, r8
+ fmtvrh vr11, r9
+ ldw r6, (a3, THREAD_FPREG + 96)
+ ldw r7, (a3, THREAD_FPREG + 100)
+ ldw r8, (a3, THREAD_FPREG + 104)
+ ldw r9, (a3, THREAD_FPREG + 108)
+ fmtvrl vr12, r6
+ fmtvrh vr12, r7
+ fmtvrl vr13, r8
+ fmtvrh vr13, r9
+ ldw r6, (a3, THREAD_FPREG + 112)
+ ldw r7, (a3, THREAD_FPREG + 116)
+ ldw r8, (a3, THREAD_FPREG + 120)
+ ldw r9, (a3, THREAD_FPREG + 124)
+ fmtvrl vr14, r6
+ fmtvrh vr14, r7
+ fmtvrl vr15, r8
+ fmtvrh vr15, r9
+.endm
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_CSKY_FPU_H */
diff --git a/arch/csky/abiv2/inc/abi/reg_ops.h b/arch/csky/abiv2/inc/abi/reg_ops.h
new file mode 100644
index 0000000..7f66bd6
--- /dev/null
+++ b/arch/csky/abiv2/inc/abi/reg_ops.h
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_REG_OPS_H
+#define __ASM_REG_OPS_H
+
+static inline unsigned int mfcr_cpuidrr(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr13\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_hint(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr31\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_ccr(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr18\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_ccr2(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr23\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline unsigned int mfcr_msa0(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr<30, 15>\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline void mtcr_msa0(unsigned int value)
+{
+ asm volatile(
+ "mtcr %0, cr<30, 15>\t\n"
+ ::"r"(value));
+}
+
+static inline unsigned int mfcr_msa1(void)
+{
+ unsigned int ret;
+ asm volatile(
+ "mfcr %0, cr<31, 15>\t\n"
+ :"=r"(ret));
+ return ret;
+}
+
+static inline void mtcr_msa1(unsigned int value)
+{
+ asm volatile(
+ "mtcr %0, cr<31, 15>\t\n"
+ ::"r"(value));
+}
+
+/* read/write user stack pointer */
+static inline unsigned long rdusp(void) {
+ register unsigned long usp;
+ asm volatile("mfcr %0, cr<14, 1> \n\r":"=r" (usp));
+ return usp;
+}
+
+static inline void wrusp(unsigned long usp) {
+ asm volatile("mtcr %0, cr<14, 1> \n\r"::"r" (usp));
+}
+
+#endif /* __ASM_REG_OPS_H */
+
diff --git a/arch/csky/abiv2/inc/abi/regdef.h b/arch/csky/abiv2/inc/abi/regdef.h
new file mode 100644
index 0000000..11bdc3a
--- /dev/null
+++ b/arch/csky/abiv2/inc/abi/regdef.h
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_CSKY_REGDEF_H
+#define __ASM_CSKY_REGDEF_H
+
+#define syscallid r7
+#define r11_sig r11
+
+#define DEFAULT_PSR_VALUE 0x8f000200
+
+#define PTRACE_REGOFF_ABI \
+{ \
+ PT_A0, PT_A1, PT_A2, PT_A3,\
+ PT_REGS0, PT_REGS1, PT_REGS2, PT_REGS3,\
+ PT_REGS4, PT_REGS5, PT_REGS6, PT_REGS7,\
+ PT_REGS8, PT_REGS9, -1, PT_R15,\
+ PT_R16, PT_R17, PT_R18, PT_R19,\
+ PT_R20, PT_R21, PT_R22, PT_R23,\
+ PT_R24, PT_R25, PT_R26, PT_R27,\
+ PT_R28, PT_R29, PT_R30, PT_R31,\
+ PT_SR, PT_PC, PT_RHI, PT_RLO,\
+}
+
+#define SYSTRACE_SAVENUM 5
+
+#define REGNO_USP 14
+
+#endif /* __ASM_CSKY_REGDEF_H */
diff --git a/arch/csky/include/uapi/asm/byteorder.h b/arch/csky/include/uapi/asm/byteorder.h
new file mode 100644
index 0000000..d254522
--- /dev/null
+++ b/arch/csky/include/uapi/asm/byteorder.h
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_CSKY_BYTEORDER_H
+#define __ASM_CSKY_BYTEORDER_H
+
+#if defined(__cskyBE__)
+#include <linux/byteorder/big_endian.h>
+#elif defined(__cskyLE__)
+#include <linux/byteorder/little_endian.h>
+#else
+# error "There is no __cskyBE__, __cskyLE__"
+#endif
+
+#endif /* __ASM_CSKY_BYTEORDER_H */
diff --git a/arch/csky/include/uapi/asm/fcntl.h b/arch/csky/include/uapi/asm/fcntl.h
new file mode 100644
index 0000000..2ee1af2
--- /dev/null
+++ b/arch/csky/include/uapi/asm/fcntl.h
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef __ASM_CSKY_FCNTL_H
+#define __ASM_CSKY_FCNTL_H
+
+#define O_DIRECTORY 040000
+#define O_NOFOLLOW 0100000
+#define O_DIRECT 0200000
+#define O_LARGEFILE 0400000
+
+#include <asm-generic/fcntl.h>
+
+#endif /* __ASM_CSKY_FCNTL_H */
diff --git a/arch/csky/include/uapi/asm/stat.h b/arch/csky/include/uapi/asm/stat.h
new file mode 100644
index 0000000..2273042
--- /dev/null
+++ b/arch/csky/include/uapi/asm/stat.h
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef _CSKY_STAT_H
+#define _CSKY_STAT_H
+
+struct __old_kernel_stat {
+ unsigned short st_dev;
+ unsigned short st_ino;
+ unsigned short st_mode;
+ unsigned short st_nlink;
+ unsigned short st_uid;
+ unsigned short st_gid;
+ unsigned short st_rdev;
+ unsigned long st_size;
+ unsigned long st_atime;
+ unsigned long st_mtime;
+ unsigned long st_ctime;
+};
+
+#define STAT_HAVE_NSEC
+
+struct stat {
+#if defined(__cskyBE__)
+ unsigned short st_dev;
+ unsigned short __pad1;
+#else
+ unsigned long st_dev;
+#endif
+ unsigned long st_ino;
+ unsigned short st_mode;
+ unsigned short st_nlink;
+ unsigned short st_uid;
+ unsigned short st_gid;
+#if defined(__cskyBE__)
+ unsigned short st_rdev;
+ unsigned short __pad2;
+#else
+ unsigned long st_rdev;
+#endif
+ unsigned long st_size;
+ unsigned long st_blksize;
+ unsigned long st_blocks;
+ unsigned long st_atime;
+ unsigned long st_atime_nsec;
+ unsigned long st_mtime;
+ unsigned long st_mtime_nsec;
+ unsigned long st_ctime;
+ unsigned long st_ctime_nsec;
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+
+/* This matches struct stat64 in glibc2.1, hence the absolutely
+ * insane amounts of padding around dev_t's.
+ */
+struct stat64 {
+ unsigned long long st_dev;
+ unsigned char __pad0[4];
+
+#define STAT64_HAS_BROKEN_ST_INO 1
+ unsigned long __st_ino;
+ unsigned int st_mode;
+ unsigned int st_nlink;
+
+ unsigned long st_uid;
+ unsigned long st_gid;
+
+ unsigned long long st_rdev;
+ unsigned char __pad3[4];
+
+ long long st_size;
+ unsigned long st_blksize;
+ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
+
+ unsigned long st_atime;
+ unsigned long st_atime_nsec;
+
+ unsigned long st_mtime;
+ unsigned long st_mtime_nsec;
+
+ unsigned long st_ctime;
+ unsigned long st_ctime_nsec;
+ unsigned long long st_ino;
+};
+
+#endif /* _CSKY_STAT_H */
--
2.7.4
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