diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-09-30 14:36:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-09-30 14:36:20 -0700 |
| commit | 7601d18be06943d5ac2b1802899ff6c303544936 (patch) | |
| tree | 2988e1ce72cf437fe0c04cdcda7330684c18fdb4 /arch/riscv/include | |
| parent | 22bdd6e68bbe270a916233ec5f34a13ae5e80ed9 (diff) | |
| parent | 3ec09344b01a15901ba824e877a0562ed8103e27 (diff) | |
Merge tag 'core-core-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull TIF bit unification updates from Thomas Gleixner:
"A set of changes to consolidate the generic TIF (thread info flag)
bits accross architectures.
All architectures define the same set of generic TIF bits. This makes
it pointlessly hard to add a new generic TIF bit or to change an
existing one.
Provide a generic variant and convert the architectures which utilize
the generic entry code over to use it. The TIF space is divided into
16 generic bits and 16 architecture specific bits, which turned out to
provide enough space on both sides"
* tag 'core-core-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
LoongArch: Fix bitflag conflict for TIF_FIXADE
riscv: Use generic TIF bits
loongarch: Use generic TIF bits
s390/entry: Remove unused TIF flags
s390: Use generic TIF bits
x86: Use generic TIF bits
asm-generic: Provide generic TIF infrastructure
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/thread_info.h | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h index c33d8b7dd488..836d80dd2921 100644 --- a/arch/riscv/include/asm/thread_info.h +++ b/arch/riscv/include/asm/thread_info.h @@ -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 */ |