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2024-11-01 7e970c18f85f99acc678d90128b6e01dce1bf273

 kernel/arch/arm/include/asm/thread_info.h
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@@ -21,6 +21,7 @@
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 struct task_struct;
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+#include <dovetail/thread_info.h>
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 #include <asm/types.h>
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 typedef unsigned long mm_segment_t;
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@@ -45,6 +46,7 @@
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  */
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 struct thread_info {
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 	unsigned long		flags;		/* low level flags */
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+	__u32			local_flags;	/* local (synchronous) flags */
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 	int			preempt_count;	/* 0 => preemptable, <0 => bug */
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 	mm_segment_t		addr_limit;	/* address limit */
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 	struct task_struct	*task;		/* main task structure */
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@@ -65,15 +67,19 @@
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 #ifdef CONFIG_ARM_THUMBEE
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 	unsigned long		thumbee_state;	/* ThumbEE Handler Base register */
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 #endif
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+	struct oob_thread_state	oob_state; /* co-kernel thread state */
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 };
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 #define INIT_THREAD_INFO(tsk)						\
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 {									\
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 	.task		= &tsk,						\
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 	.flags		= 0,						\
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+	.local_flags	= 0,						\
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 	.preempt_count	= INIT_PREEMPT_COUNT,				\
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 	.addr_limit	= KERNEL_DS,					\
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 }
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+
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+#define ti_local_flags(__ti)	((__ti)->local_flags)
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 /*
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  * how to get the thread information struct from C
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@@ -142,6 +148,8 @@
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 #define TIF_USING_IWMMXT	17
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 #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
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 #define TIF_RESTORE_SIGMASK	20
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+#define TIF_MAYDAY		21	/* emergency trap pending */
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+#define TIF_RETUSER		22	/* INBAND_TASK_RETUSER is pending */
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 #define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
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 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
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@@ -153,6 +161,8 @@
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 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
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 #define _TIF_NOTIFY_SIGNAL	(1 << TIF_NOTIFY_SIGNAL)
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 #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
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+#define _TIF_MAYDAY		(1 << TIF_MAYDAY)
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+#define _TIF_RETUSER		(1 << TIF_RETUSER)
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 /* Checks for any syscall work in entry-common.S */
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 #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
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@@ -163,7 +173,15 @@
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  */
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 #define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
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 				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
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-				 _TIF_NOTIFY_SIGNAL)
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+				 _TIF_NOTIFY_SIGNAL | _TIF_RETUSER)
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+
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+/*
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+ * Local (synchronous) thread flags.
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+ */
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+#define _TLF_OOB		0x0001
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+#define _TLF_DOVETAIL		0x0002
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+#define _TLF_OFFSTAGE		0x0004
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+#define _TLF_OOBTRAP		0x0008
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 #endif /* __KERNEL__ */
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 #endif /* __ASM_ARM_THREAD_INFO_H */