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/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
#ifndef _ASM_CSKY_THREAD_INFO_H
#define _ASM_CSKY_THREAD_INFO_H
#ifndef __ASSEMBLY__
#include <linux/version.h>
#include <asm/types.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <abi/switch_context.h>
struct thread_info {
struct task_struct *task;
void *dump_exec_domain;
unsigned long flags;
int preempt_count;
unsigned long tp_value;
mm_segment_t addr_limit;
struct restart_block restart_block;
struct pt_regs *regs;
unsigned int cpu;
};
#define INIT_THREAD_INFO(tsk) \
{ \
.task = &tsk, \
.preempt_count = INIT_PREEMPT_COUNT, \
.addr_limit = KERNEL_DS, \
.cpu = 0, \
.restart_block = { \
.fn = do_no_restart_syscall, \
}, \
}
#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
#define thread_saved_fp(tsk) \
((unsigned long)(((struct switch_stack *)(tsk->thread.ksp))->r8))
static inline struct thread_info *current_thread_info(void)
{
unsigned long sp;
asm volatile("mov %0, sp\n":"=r"(sp));
return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
}
#endif /* !__ASSEMBLY__ */
/* entry.S relies on these definitions!
* bits 0-5 are tested at every exception exit
*/
#define TIF_SIGPENDING 0 /* signal pending */
#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
#define TIF_SYSCALL_TRACE 5 /* syscall trace active */
#define TIF_DELAYED_TRACE 14 /* single step a syscall */
#define TIF_POLLING_NRFLAG 16 /* poll_idle() is TIF_NEED_RESCHED */
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
#define TIF_FREEZE 19 /* thread is freezing for suspend */
#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
#define TIF_SECCOMP 21 /* secure computing */
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_DELAYED_TRACE (1 << TIF_DELAYED_TRACE)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#endif /* _ASM_CSKY_THREAD_INFO_H */
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