19 files changed, 154 insertions, 77 deletions

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index a39250cb7dfc..7085df079702 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -42,6 +42,9 @@
 #define ASM_ULONG_INSN	.word
 #endif
 
+/* Frame alignment for 32- and 64-bit */
+#define FRAME_ALIGN     64
+
 #define CALLEE_SAVE_FRAME_SIZE (CALLEE_REG_FRAME_SIZE + CALLEE_FLOAT_FRAME_SIZE)
 
 #ifdef CONFIG_PA20
@@ -58,6 +61,10 @@
 #define PA_ASM_LEVEL	1.1
 #endif
 
+/* Privilege level field in the rightmost two bits of the IA queues */
+#define PRIV_USER	3
+#define PRIV_KERNEL	0
+
 #ifdef __ASSEMBLY__
 
 #ifdef CONFIG_64BIT
@@ -71,6 +78,7 @@
 #include <asm/types.h>
 
 #include <asm/asmregs.h>
+#include <asm/psw.h>
 
 	sp	=	30
 	gp	=	27
@@ -497,6 +505,30 @@
 	nop	/* 7 */
 	.endm
 
+	/* Switch to virtual mapping, trashing only %r1 */
+	.macro  virt_map
+	/* pcxt_ssm_bug */
+	rsm	PSW_SM_I, %r0		/* barrier for "Relied upon Translation */
+	mtsp	%r0, %sr4
+	mtsp	%r0, %sr5
+	mtsp	%r0, %sr6
+	tovirt_r1 %r29
+	load32	KERNEL_PSW, %r1
+
+	rsm     PSW_SM_QUIET,%r0	/* second "heavy weight" ctl op */
+	mtctl	%r0, %cr17		/* Clear IIASQ tail */
+	mtctl	%r0, %cr17		/* Clear IIASQ head */
+	mtctl	%r1, %ipsw
+	load32	4f, %r1
+	mtctl	%r1, %cr18		/* Set IIAOQ tail */
+	ldo	4(%r1), %r1
+	mtctl	%r1, %cr18		/* Set IIAOQ head */
+	rfir
+	nop
+4:
+	.endm
+
+
 	/*
 	 * ASM_EXCEPTIONTABLE_ENTRY
 	 *
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index aa4e883431c1..daa2afd974fb 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -104,8 +104,6 @@ static __inline__ int test_and_change_bit(int nr, volatile unsigned long * addr)
 
 #include <asm-generic/bitops/non-atomic.h>
 
-#ifdef __KERNEL__
-
 /**
  * __ffs - find first bit in word. returns 0 to "BITS_PER_LONG-1".
  * @word: The word to search
@@ -205,16 +203,8 @@ static __inline__ int fls(unsigned int x)
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
-
-#endif /* __KERNEL__ */
-
 #include <asm-generic/bitops/find.h>
-
-#ifdef __KERNEL__
-
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 
-#endif	/* __KERNEL__ */
-
 #endif /* _PARISC_BITOPS_H */
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index eef0096db5f8..da0cd4b3a28f 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -49,7 +49,8 @@ void invalidate_kernel_vmap_range(void *vaddr, int size);
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
-extern void flush_dcache_page(struct page *page);
+void flush_dcache_page(struct page *page);
+void flush_dcache_folio(struct folio *folio);
 
 #define flush_dcache_mmap_lock(mapping)		xa_lock_irq(&mapping->i_pages)
 #define flush_dcache_mmap_unlock(mapping)	xa_unlock_irq(&mapping->i_pages)
diff --git a/arch/parisc/include/asm/current.h b/arch/parisc/include/asm/current.h
new file mode 100644
index 000000000000..568b739e42af
--- /dev/null
+++ b/arch/parisc/include/asm/current.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_PARISC_CURRENT_H
+#define _ASM_PARISC_CURRENT_H
+
+#include <asm/special_insns.h>
+
+#ifndef __ASSEMBLY__
+struct task_struct;
+
+static __always_inline struct task_struct *get_current(void)
+{
+	return (struct task_struct *) mfctl(30);
+}
+
+#define current get_current()
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_PARISC_CURRENT_H */
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index fceb9cf02fb3..70cf8f0a7617 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -2,8 +2,6 @@
 #ifndef _ASM_PARISC_FUTEX_H
 #define _ASM_PARISC_FUTEX_H
 
-#ifdef __KERNEL__
-
 #include <linux/futex.h>
 #include <linux/uaccess.h>
 #include <asm/atomic.h>
@@ -13,35 +11,34 @@
    sixteen four-word locks. */
 
 static inline void
-_futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
+_futex_spin_lock(u32 __user *uaddr)
 {
 	extern u32 lws_lock_start[];
 	long index = ((long)uaddr & 0x3f8) >> 1;
 	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
-	local_irq_save(*flags);
+	preempt_disable();
 	arch_spin_lock(s);
 }
 
 static inline void
-_futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
+_futex_spin_unlock(u32 __user *uaddr)
 {
 	extern u32 lws_lock_start[];
 	long index = ((long)uaddr & 0x3f8) >> 1;
 	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
 	arch_spin_unlock(s);
-	local_irq_restore(*flags);
+	preempt_enable();
 }
 
 static inline int
 arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 {
-	unsigned long int flags;
 	int oldval, ret;
 	u32 tmp;
 
-	_futex_spin_lock_irqsave(uaddr, &flags);
-
 	ret = -EFAULT;
+
+	_futex_spin_lock(uaddr);
 	if (unlikely(get_user(oldval, uaddr) != 0))
 		goto out_pagefault_enable;
 
@@ -72,7 +69,7 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
 		ret = -EFAULT;
 
 out_pagefault_enable:
-	_futex_spin_unlock_irqrestore(uaddr, &flags);
+	_futex_spin_unlock(uaddr);
 
 	if (!ret)
 		*oval = oldval;
@@ -85,7 +82,6 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 			      u32 oldval, u32 newval)
 {
 	u32 val;
-	unsigned long flags;
 
 	/* futex.c wants to do a cmpxchg_inatomic on kernel NULL, which is
 	 * our gateway page, and causes no end of trouble...
@@ -102,22 +98,21 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 	 * address. This should scale to a couple of CPUs.
 	 */
 
-	_futex_spin_lock_irqsave(uaddr, &flags);
+	_futex_spin_lock(uaddr);
 	if (unlikely(get_user(val, uaddr) != 0)) {
-		_futex_spin_unlock_irqrestore(uaddr, &flags);
+		_futex_spin_unlock(uaddr);
 		return -EFAULT;
 	}
 
 	if (val == oldval && unlikely(put_user(newval, uaddr) != 0)) {
-		_futex_spin_unlock_irqrestore(uaddr, &flags);
+		_futex_spin_unlock(uaddr);
 		return -EFAULT;
 	}
 
 	*uval = val;
-	_futex_spin_unlock_irqrestore(uaddr, &flags);
+	_futex_spin_unlock(uaddr);
 
 	return 0;
 }
 
-#endif /*__KERNEL__*/
 #endif /*_ASM_PARISC_FUTEX_H*/
diff --git a/arch/parisc/include/asm/ide.h b/arch/parisc/include/asm/ide.h
index 34cdac01ed35..7aa75b93a1b6 100644
--- a/arch/parisc/include/asm/ide.h
+++ b/arch/parisc/include/asm/ide.h
@@ -12,8 +12,6 @@
 #ifndef __ASM_PARISC_IDE_H
 #define __ASM_PARISC_IDE_H
 
-#ifdef __KERNEL__
-
 /* Generic I/O and MEMIO string operations.  */
 
 #define __ide_insw	insw
@@ -53,6 +51,4 @@ static __inline__ void __ide_mm_outsl(void __iomem *port, void *addr, u32 count)
 	}
 }
 
-#endif /* __KERNEL__ */
-
 #endif /* __ASM_PARISC_IDE_H */
diff --git a/arch/parisc/include/asm/kfence.h b/arch/parisc/include/asm/kfence.h
new file mode 100644
index 000000000000..6259e5ac1fea
--- /dev/null
+++ b/arch/parisc/include/asm/kfence.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * PA-RISC KFENCE support.
+ *
+ * Copyright (C) 2021, Helge Deller <deller@gmx.de>
+ */
+
+#ifndef _ASM_PARISC_KFENCE_H
+#define _ASM_PARISC_KFENCE_H
+
+#include <linux/kfence.h>
+
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+
+static inline bool arch_kfence_init_pool(void)
+{
+	return true;
+}
+
+/* Protect the given page and flush TLB. */
+static inline bool kfence_protect_page(unsigned long addr, bool protect)
+{
+	pte_t *pte = virt_to_kpte(addr);
+
+	if (WARN_ON(!pte))
+		return false;
+
+	/*
+	 * We need to avoid IPIs, as we may get KFENCE allocations or faults
+	 * with interrupts disabled.
+	 */
+
+	if (protect)
+		set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_PRESENT));
+	else
+		set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT));
+
+	flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
+
+	return true;
+}
+
+#endif /* _ASM_PARISC_KFENCE_H */
diff --git a/arch/parisc/include/asm/mckinley.h b/arch/parisc/include/asm/mckinley.h
index eb84dbeb7fd9..1314390b9034 100644
--- a/arch/parisc/include/asm/mckinley.h
+++ b/arch/parisc/include/asm/mckinley.h
@@ -1,10 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_PARISC_MCKINLEY_H
 #define ASM_PARISC_MCKINLEY_H
-#ifdef __KERNEL__
 
 /* declared in arch/parisc/kernel/setup.c */
 extern struct proc_dir_entry * proc_mckinley_root;
 
-#endif /*__KERNEL__*/
 #endif /*ASM_PARISC_MCKINLEY_H*/
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index b388d8176588..18b957a8630d 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -51,6 +51,8 @@ int pdc_spaceid_bits(unsigned long *space_bits);
 int pdc_btlb_info(struct pdc_btlb_info *btlb);
 int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path);
 #endif /* !CONFIG_PA20 */
+int pdc_pim_toc11(struct pdc_toc_pim_11 *ret);
+int pdc_pim_toc20(struct pdc_toc_pim_20 *ret);
 int pdc_lan_station_id(char *lan_addr, unsigned long net_hpa);
 
 int pdc_stable_read(unsigned long staddr, void *memaddr, unsigned long count);
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index eeb7da064289..b669f4b9040b 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -12,6 +12,7 @@
 #ifndef __ASSEMBLY__
 #include <linux/threads.h>
 
+#include <asm/assembly.h>
 #include <asm/prefetch.h>
 #include <asm/hardware.h>
 #include <asm/pdc.h>
@@ -37,16 +38,12 @@
 #define DEFAULT_MAP_BASE	DEFAULT_MAP_BASE32
 #endif
 
-#ifdef __KERNEL__
-
 /* XXX: STACK_TOP actually should be STACK_BOTTOM for parisc.
  * prumpf */
 
 #define STACK_TOP	TASK_SIZE
 #define STACK_TOP_MAX	DEFAULT_TASK_SIZE
 
-#endif
-
 #ifndef __ASSEMBLY__
 
 unsigned long calc_max_stack_size(unsigned long stack_max);
@@ -101,8 +98,6 @@ DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
 
-#define ARCH_MIN_TASKALIGN	8
-
 struct thread_struct {
 	struct pt_regs regs;
 	unsigned long  task_size;
@@ -273,7 +268,7 @@ struct mm_struct;
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
 
-extern unsigned long get_wchan(struct task_struct *p);
+extern unsigned long __get_wchan(struct task_struct *p);
 
 #define KSTK_EIP(tsk)	((tsk)->thread.regs.iaoq[0])
 #define KSTK_ESP(tsk)	((tsk)->thread.regs.gr[30])
@@ -294,6 +289,10 @@ extern int _parisc_requires_coherency;
 
 extern int running_on_qemu;
 
+extern void toc_handler(void);
+extern unsigned int toc_handler_size;
+extern unsigned int toc_handler_csum;
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_PARISC_PROCESSOR_H */
diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 143fb2a89dd8..eea3f3df0823 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -5,17 +5,17 @@
 #ifndef _PARISC_PTRACE_H
 #define _PARISC_PTRACE_H
 
+#include <asm/assembly.h>
 #include <uapi/asm/ptrace.h>
 
-
 #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
 
 #define arch_has_single_step()	1
 #define arch_has_block_step()	1
 
 /* XXX should we use iaoq[1] or iaoq[0] ? */
-#define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
-#define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
+#define user_mode(regs)			(((regs)->iaoq[0] & 3) != PRIV_KERNEL)
+#define user_space(regs)		((regs)->iasq[1] != PRIV_KERNEL)
 #define instruction_pointer(regs)	((regs)->iaoq[0] & ~3)
 #define user_stack_pointer(regs)	((regs)->gr[30])
 unsigned long profile_pc(struct pt_regs *);
diff --git a/arch/parisc/include/asm/runway.h b/arch/parisc/include/asm/runway.h
index f3cfe69439f6..5cf061376ddb 100644
--- a/arch/parisc/include/asm/runway.h
+++ b/arch/parisc/include/asm/runway.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_PARISC_RUNWAY_H
 #define ASM_PARISC_RUNWAY_H
-#ifdef __KERNEL__
 
 /* declared in arch/parisc/kernel/setup.c */
 extern struct proc_dir_entry * proc_runway_root;
@@ -9,5 +8,4 @@ extern struct proc_dir_entry * proc_runway_root;
 #define RUNWAY_STATUS	0x10
 #define RUNWAY_DEBUG	0x40
 
-#endif /* __KERNEL__ */
 #endif /* ASM_PARISC_RUNWAY_H */
diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index b9a18db4b05a..2279ebe5e2da 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -32,9 +32,9 @@ extern void smp_send_all_nop(void);
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
-#endif /* !ASSEMBLY */
+#define raw_smp_processor_id()		(current_thread_info()->cpu)
 
-#define raw_smp_processor_id()	(current_thread_info()->cpu)
+#endif /* !ASSEMBLY */
 
 #else /* CONFIG_SMP */
 
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index fa5ee8a45dbd..a6e5d66a7656 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -23,21 +23,6 @@ static inline void arch_spin_lock(arch_spinlock_t *x)
 			continue;
 }
 
-static inline void arch_spin_lock_flags(arch_spinlock_t *x,
-					unsigned long flags)
-{
-	volatile unsigned int *a;
-
-	a = __ldcw_align(x);
-	while (__ldcw(a) == 0)
-		while (*a == 0)
-			if (flags & PSW_SM_I) {
-				local_irq_enable();
-				local_irq_disable();
-			}
-}
-#define arch_spin_lock_flags arch_spin_lock_flags
-
 static inline void arch_spin_unlock(arch_spinlock_t *x)
 {
 	volatile unsigned int *a;
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 00ad50fef769..1a58795f785c 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -2,30 +2,24 @@
 #ifndef _ASM_PARISC_THREAD_INFO_H
 #define _ASM_PARISC_THREAD_INFO_H
 
-#ifdef __KERNEL__
-
 #ifndef __ASSEMBLY__
 #include <asm/processor.h>
 #include <asm/special_insns.h>
 
 struct thread_info {
-	struct task_struct *task;	/* main task structure */
 	unsigned long flags;		/* thread_info flags (see TIF_*) */
-	__u32 cpu;			/* current CPU */
 	int preempt_count;		/* 0=premptable, <0=BUG; will also serve as bh-counter */
+#ifdef CONFIG_SMP
+	unsigned int cpu;
+#endif
 };
 
 #define INIT_THREAD_INFO(tsk)			\
 {						\
-	.task		= &tsk,			\
 	.flags		= 0,			\
-	.cpu		= 0,			\
 	.preempt_count	= INIT_PREEMPT_COUNT,	\
 }
 
-/* how to get the thread information struct from C */
-#define current_thread_info()	((struct thread_info *)mfctl(30))
-
 #endif /* !__ASSEMBLY */
 
 /* thread information allocation */
@@ -57,6 +51,7 @@ struct thread_info {
 #define TIF_BLOCKSTEP		10	/* branch stepping? */
 #define TIF_SECCOMP		11	/* secure computing */
 #define TIF_SYSCALL_TRACEPOINT	12	/* syscall tracepoint instrumentation */
+#define TIF_NONBLOCK_WARNING	13	/* warned about wrong O_NONBLOCK usage */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
@@ -87,6 +82,4 @@ struct thread_info {
 # define is_32bit_task()	(1)
 #endif
 
-#endif /* __KERNEL__ */
-
 #endif /* _ASM_PARISC_THREAD_INFO_H */
diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 8ecc1f0c0483..34619f010c63 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -14,6 +14,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs,
 void die_if_kernel(char *str, struct pt_regs *regs, long err);
 
 /* mm/fault.c */
+unsigned long parisc_acctyp(unsigned long code, unsigned int inst);
 const char *trap_name(unsigned long code);
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 		unsigned long address);
diff --git a/arch/parisc/include/asm/unaligned.h b/arch/parisc/include/asm/unaligned.h
index 3bda16773ba6..c0621295100d 100644
--- a/arch/parisc/include/asm/unaligned.h
+++ b/arch/parisc/include/asm/unaligned.h
@@ -4,10 +4,8 @@
 
 #include <asm-generic/unaligned.h>
 
-#ifdef __KERNEL__
 struct pt_regs;
 void handle_unaligned(struct pt_regs *regs);
 int check_unaligned(struct pt_regs *regs);
-#endif
 
 #endif /* _ASM_PARISC_UNALIGNED_H */
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 15211723ebf5..acc633c15722 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -398,8 +398,10 @@ struct zeropage {
 	/* int	(*vec_rendz)(void); */
 	unsigned int vec_rendz;
 	int	vec_pow_fail_flen;
-	int	vec_pad[10];		
-	
+	int	vec_pad0[3];
+	unsigned int vec_toc_hi;
+	int	vec_pad1[6];
+
 	/* [0x040] reserved processor dependent */
 	int	pad0[112];
 
@@ -689,6 +691,28 @@ struct pdc_hpmc_pim_20 { /* PDC_PIM */
 	unsigned long long fr[32];
 };
 
+struct pdc_toc_pim_11 {
+	unsigned int gr[32];
+	unsigned int cr[32];
+	unsigned int sr[8];
+	unsigned int iasq_back;
+	unsigned int iaoq_back;
+	unsigned int check_type;
+	unsigned int hversion;
+	unsigned int cpu_state;
+};
+
+struct pdc_toc_pim_20 {
+	unsigned long long gr[32];
+	unsigned long long cr[32];
+	unsigned long long sr[8];
+	unsigned long long iasq_back;
+	unsigned long long iaoq_back;
+	unsigned int check_type;
+	unsigned int hversion;
+	unsigned int cpu_state;
+};
+
 #endif /* !defined(__ASSEMBLY__) */
 
 #endif /* _UAPI_PARISC_PDC_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 8baaad52d799..845ddc63c882 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -123,6 +123,8 @@
 
 #define SO_BUF_LOCK		0x4046
 
+#define SO_RESERVE_MEM		0x4047
+
 #if !defined(__KERNEL__)
 
 #if __BITS_PER_LONG == 64