cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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thread_info.h (2806B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2
      3#ifndef _ASM_CSKY_THREAD_INFO_H
      4#define _ASM_CSKY_THREAD_INFO_H
      5
      6#ifndef __ASSEMBLY__
      7
      8#include <asm/types.h>
      9#include <asm/page.h>
     10#include <asm/processor.h>
     11#include <abi/switch_context.h>
     12
     13struct thread_info {
     14	struct task_struct	*task;
     15	void			*dump_exec_domain;
     16	unsigned long		flags;
     17	int			preempt_count;
     18	unsigned long		tp_value;
     19	struct restart_block	restart_block;
     20	struct pt_regs		*regs;
     21	unsigned int		cpu;
     22};
     23
     24#define INIT_THREAD_INFO(tsk)			\
     25{						\
     26	.task		= &tsk,			\
     27	.preempt_count  = INIT_PREEMPT_COUNT,	\
     28	.cpu		= 0,			\
     29	.restart_block = {			\
     30		.fn = do_no_restart_syscall,	\
     31	},					\
     32}
     33
     34#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
     35
     36#define thread_saved_fp(tsk) \
     37	((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))
     38
     39#define thread_saved_sp(tsk) \
     40	((unsigned long)(tsk->thread.sp))
     41
     42#define thread_saved_lr(tsk) \
     43	((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))
     44
     45static inline struct thread_info *current_thread_info(void)
     46{
     47	unsigned long sp;
     48
     49	asm volatile("mov %0, sp\n":"=r"(sp));
     50
     51	return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
     52}
     53
     54#endif /* !__ASSEMBLY__ */
     55
     56#define TIF_SIGPENDING		0	/* signal pending */
     57#define TIF_NOTIFY_RESUME	1       /* callback before returning to user */
     58#define TIF_NEED_RESCHED	2	/* rescheduling necessary */
     59#define TIF_UPROBE		3	/* uprobe breakpoint or singlestep */
     60#define TIF_SYSCALL_TRACE	4	/* syscall trace active */
     61#define TIF_SYSCALL_TRACEPOINT	5       /* syscall tracepoint instrumentation */
     62#define TIF_SYSCALL_AUDIT	6	/* syscall auditing */
     63#define TIF_NOTIFY_SIGNAL	7	/* signal notifications exist */
     64#define TIF_POLLING_NRFLAG	16	/* poll_idle() is TIF_NEED_RESCHED */
     65#define TIF_MEMDIE		18      /* is terminating due to OOM killer */
     66#define TIF_RESTORE_SIGMASK	20	/* restore signal mask in do_signal() */
     67#define TIF_SECCOMP		21	/* secure computing */
     68
     69#define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
     70#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
     71#define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
     72#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
     73#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
     74#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
     75#define _TIF_NOTIFY_SIGNAL	(1 << TIF_NOTIFY_SIGNAL)
     76#define _TIF_UPROBE		(1 << TIF_UPROBE)
     77#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
     78#define _TIF_MEMDIE		(1 << TIF_MEMDIE)
     79#define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
     80#define _TIF_SECCOMP		(1 << TIF_SECCOMP)
     81
     82#define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
     83				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
     84				 _TIF_NOTIFY_SIGNAL)
     85
     86#define _TIF_SYSCALL_WORK	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
     87				 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
     88
     89#endif	/* _ASM_CSKY_THREAD_INFO_H */