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riscv: Use generic TIF bits

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No point in defining generic items and the upcoming RSEQ optimizations are
only available with this _and_ the generic entry infrastructure, which is
already used by RISCV. So no further action required here.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2025-09-08 23:32:38 +02:00
parent f9629891d4
commit 41e871f2b6
2 changed files with 13 additions and 17 deletions
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1
arch/riscv/Kconfig
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@ -161,6 +161,7 @@ config RISCV
select HAVE_FUNCTION_GRAPH_FREGS
select HAVE_FUNCTION_TRACER if !XIP_KERNEL && HAVE_DYNAMIC_FTRACE
select HAVE_EBPF_JIT if MMU
select HAVE_GENERIC_TIF_BITS
select HAVE_GUP_FAST if MMU
select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_FUNCTION_ERROR_INJECTION

29
arch/riscv/include/asm/thread_info.h
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@ -107,23 +107,18 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
* - pending work-to-be-done flags are in lowest half-word
* - other flags in upper half-word(s)
*/
#define TIF_NEED_RESCHED 0 /* rescheduling necessary */
#define TIF_NEED_RESCHED_LAZY 1 /* Lazy rescheduling needed */
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_SIGPENDING 3 /* signal pending */
#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */
#define TIF_MEMDIE 5 /* is terminating due to OOM killer */
#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
#define TIF_UPROBE 10 /* uprobe breakpoint or singlestep */
#define TIF_32BIT 11 /* compat-mode 32bit process */
#define TIF_RISCV_V_DEFER_RESTORE 12 /* restore Vector before returing to user */
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_NEED_RESCHED_LAZY (1 << TIF_NEED_RESCHED_LAZY)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_UPROBE (1 << TIF_UPROBE)
#define _TIF_RISCV_V_DEFER_RESTORE (1 << TIF_RISCV_V_DEFER_RESTORE)
/*
* Tell the generic TIF infrastructure which bits riscv supports
*/
#define HAVE_TIF_NEED_RESCHED_LAZY
#define HAVE_TIF_RESTORE_SIGMASK
#include <asm-generic/thread_info_tif.h>
#define TIF_32BIT 16 /* compat-mode 32bit process */
#define TIF_RISCV_V_DEFER_RESTORE 17 /* restore Vector before returing to user */
#define _TIF_RISCV_V_DEFER_RESTORE BIT(TIF_RISCV_V_DEFER_RESTORE)
#endif /* _ASM_RISCV_THREAD_INFO_H */