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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2002-2003 Hewlett-Packard Co
 *	David Mosberger-Tang <davidm@hpl.hp.com>
 */
#ifndef _ASM_IA64_THREAD_INFO_H
#define _ASM_IA64_THREAD_INFO_H

#ifndef ASM_OFFSETS_C
#include <asm/asm-offsets.h>
#endif
#include <asm/processor.h>
#include <asm/ptrace.h>

#ifndef __ASSEMBLY__

/*
 * On IA-64, we want to keep the task structure and kernel stack together, so they can be
 * mapped by a single TLB entry and so they can be addressed by the "current" pointer
 * without having to do pointer masking.
 */
struct thread_info {
	struct task_struct *task;	/* XXX not really needed, except for dup_task_struct() */
	__u32 flags;			/* thread_info flags (see TIF_*) */
	__u32 cpu;			/* current CPU */
	__u32 last_cpu;			/* Last CPU thread ran on */
	__u32 status;			/* Thread synchronous flags */
	mm_segment_t addr_limit;	/* user-level address space limit */
	int preempt_count;		/* 0=premptable, <0=BUG; will also serve as bh-counter */
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
	__u64 utime;
	__u64 stime;
	__u64 gtime;
	__u64 hardirq_time;
	__u64 softirq_time;
	__u64 idle_time;
	__u64 ac_stamp;
	__u64 ac_leave;
	__u64 ac_stime;
	__u64 ac_utime;
#endif
};

#define THREAD_SIZE			KERNEL_STACK_SIZE

#define INIT_THREAD_INFO(tsk)			\
{						\
	.task		= &tsk,			\
	.flags		= 0,			\
	.cpu		= 0,			\
	.addr_limit	= KERNEL_DS,		\
	.preempt_count	= INIT_PREEMPT_COUNT,	\
}

#ifndef ASM_OFFSETS_C
/* how to get the thread information struct from C */
#define current_thread_info()	((struct thread_info *) ((char *) current + IA64_TASK_SIZE))
#define alloc_thread_stack_node(tsk, node)	\
		((unsigned long *) ((char *) (tsk) + IA64_TASK_SIZE))
#define task_thread_info(tsk)	((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE))
#else
#define current_thread_info()	((struct thread_info *) 0)
#define alloc_thread_stack_node(tsk, node)	((unsigned long *) 0)
#define task_thread_info(tsk)	((struct thread_info *) 0)
#endif
#define free_thread_stack(tsk)	/* nothing */
#define task_stack_page(tsk)	((void *)(tsk))

#define __HAVE_THREAD_FUNCTIONS
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
#define setup_thread_stack(p, org)			\
	*task_thread_info(p) = *task_thread_info(org);	\
	task_thread_info(p)->ac_stime = 0;		\
	task_thread_info(p)->ac_utime = 0;		\
	task_thread_info(p)->task = (p);
#else
#define setup_thread_stack(p, org) \
	*task_thread_info(p) = *task_thread_info(org); \
	task_thread_info(p)->task = (p);
#endif
#define end_of_stack(p) (unsigned long *)((void *)(p) + IA64_RBS_OFFSET)

#define alloc_task_struct_node(node)						\
({										\
	struct page *page = alloc_pages_node(node, GFP_KERNEL | __GFP_COMP,	\
					     KERNEL_STACK_SIZE_ORDER);		\
	struct task_struct *ret = page ? page_address(page) : NULL;		\
										\
	ret;									\
})
#define free_task_struct(tsk)	free_pages((unsigned long) (tsk), KERNEL_STACK_SIZE_ORDER)

#endif /* !__ASSEMBLY */

/*
 * thread information flags
 * - these are process state flags that various assembly files may need to access
 * - pending work-to-be-done flags are in least-significant 16 bits, other flags
 *   in top 16 bits
 */
#define TIF_SIGPENDING		0	/* signal pending */
#define TIF_NEED_RESCHED	1	/* rescheduling necessary */
#define TIF_SYSCALL_TRACE	2	/* syscall trace active */
#define TIF_SYSCALL_AUDIT	3	/* syscall auditing active */
#define TIF_SINGLESTEP		4	/* restore singlestep on return to user mode */
#define TIF_NOTIFY_RESUME	6	/* resumption notification requested */
#define TIF_MEMDIE		17	/* is terminating due to OOM killer */
#define TIF_MCA_INIT		18	/* this task is processing MCA or INIT */
#define TIF_DB_DISABLED		19	/* debug trap disabled for fsyscall */
#define TIF_RESTORE_RSE		21	/* user RBS is newer than kernel RBS */
#define TIF_POLLING_NRFLAG	22	/* idle is polling for TIF_NEED_RESCHED */

#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
#define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
#define _TIF_SYSCALL_TRACEAUDIT	(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
#define _TIF_MCA_INIT		(1 << TIF_MCA_INIT)
#define _TIF_DB_DISABLED	(1 << TIF_DB_DISABLED)
#define _TIF_RESTORE_RSE	(1 << TIF_RESTORE_RSE)
#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)

/* "work to do on user-return" bits */
#define TIF_ALLWORK_MASK	(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SYSCALL_AUDIT|\
				 _TIF_NEED_RESCHED|_TIF_SYSCALL_TRACE)
/* like TIF_ALLWORK_BITS but sans TIF_SYSCALL_TRACE or TIF_SYSCALL_AUDIT */
#define TIF_WORK_MASK		(TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))

#endif /* _ASM_IA64_THREAD_INFO_H */

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Name Type Size Permission Actions
native Folder 0755
sn Folder 0755
uv Folder 0755
Kbuild File 224 B 0644
acenv.h File 1.27 KB 0644
acpi-ext.h File 590 B 0644
acpi.h File 4.1 KB 0644
agp.h File 857 B 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 890 B 0644
asmmacro.h File 3.29 KB 0644
atomic.h File 9.47 KB 0644
barrier.h File 2.36 KB 0644
bitops.h File 10.84 KB 0644
bug.h File 404 B 0644
bugs.h File 436 B 0644
cache.h File 771 B 0644
cacheflush.h File 1.71 KB 0644
checksum.h File 2.1 KB 0644
clocksource.h File 276 B 0644
cpu.h File 456 B 0644
cputime.h File 855 B 0644
current.h File 418 B 0644
cyclone.h File 442 B 0644
delay.h File 1.7 KB 0644
device.h File 323 B 0644
div64.h File 31 B 0644
dma-mapping.h File 1.17 KB 0644
dma.h File 466 B 0644
dmi.h File 343 B 0644
early_ioremap.h File 428 B 0644
elf.h File 9.83 KB 0644
emergency-restart.h File 149 B 0644
esi.h File 887 B 0644
exception.h File 1.13 KB 0644
export.h File 115 B 0644
extable.h File 330 B 0644
fb.h File 569 B 0644
fpswa.h File 1.88 KB 0644
ftrace.h File 748 B 0644
futex.h File 2.56 KB 0644
gcc_intrin.h File 368 B 0644
hardirq.h File 564 B 0644
hpsim.h File 364 B 0644
hugetlb.h File 1.67 KB 0644
hw_irq.h File 6.33 KB 0644
idle.h File 200 B 0644
intrinsics.h File 306 B 0644
io.h File 11.77 KB 0644
iommu.h File 555 B 0644
iommu_table.h File 175 B 0644
iosapic.h File 3.16 KB 0644
irq.h File 1.02 KB 0644
irq_regs.h File 34 B 0644
irq_remapping.h File 142 B 0644
irqflags.h File 2.11 KB 0644
kdebug.h File 1.64 KB 0644
kexec.h File 1.57 KB 0644
kmap_types.h File 260 B 0644
kprobes.h File 3.82 KB 0644
kregs.h File 6.73 KB 0644
libata-portmap.h File 225 B 0644
linkage.h File 398 B 0644
local.h File 31 B 0644
local64.h File 33 B 0644
machvec.h File 12.1 KB 0644
machvec_dig.h File 449 B 0644
machvec_dig_vtd.h File 558 B 0644
machvec_hpsim.h File 544 B 0644
machvec_hpzx1.h File 544 B 0644
machvec_hpzx1_swiotlb.h File 632 B 0644
machvec_init.h File 1.33 KB 0644
machvec_sn2.h File 4.71 KB 0644
machvec_uv.h File 684 B 0644
mca.h File 5.91 KB 0644
mca_asm.h File 7.18 KB 0644
meminit.h File 2.24 KB 0644
mman.h File 432 B 0644
mmu.h File 374 B 0644
mmu_context.h File 5.29 KB 0644
mmzone.h File 1.1 KB 0644
module.h File 1.1 KB 0644
msidef.h File 1.4 KB 0644
nodedata.h File 1.85 KB 0644
numa.h File 2.18 KB 0644
page.h File 6.49 KB 0644
pal.h File 53.39 KB 0644
param.h File 439 B 0644
parport.h File 534 B 0644
patch.h File 1.19 KB 0644
pci.h File 2.83 KB 0644
percpu.h File 1.32 KB 0644
perfmon.h File 4.33 KB 0644
pgalloc.h File 2.84 KB 0644
pgtable.h File 20.92 KB 0644
processor.h File 17.98 KB 0644
ptrace.h File 5.2 KB 0644
rwsem.h File 3.82 KB 0644
sal.h File 26.51 KB 0644
sections.h File 1.35 KB 0644
segment.h File 162 B 0644
serial.h File 446 B 0644
shmparam.h File 445 B 0644
signal.h File 749 B 0644
smp.h File 3.21 KB 0644
sparsemem.h File 621 B 0644
spinlock.h File 6.92 KB 0644
spinlock_types.h File 475 B 0644
string.h File 659 B 0644
swiotlb.h File 344 B 0644
switch_to.h File 2.89 KB 0644
syscall.h File 2.06 KB 0644
termios.h File 1.88 KB 0644
thread_info.h File 4.66 KB 0644
timex.h File 1.47 KB 0644
tlb.h File 8.42 KB 0644
tlbflush.h File 2.33 KB 0644
topology.h File 1.58 KB 0644
types.h File 828 B 0644
uaccess.h File 9.86 KB 0644
unaligned.h File 337 B 0644
uncached.h File 463 B 0644
unistd.h File 1.45 KB 0644
unwind.h File 5.74 KB 0644
user.h File 2.25 KB 0644
ustack.h File 403 B 0644
vga.h File 657 B 0644
xor.h File 1.12 KB 0644