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authorJens Axboe <axboe@kernel.dk>2020-10-10 00:18:43 +0300
committerJens Axboe <axboe@kernel.dk>2020-12-12 19:17:38 +0300
commitb13e8bf615fe26fb6a6dfe1b5a1c65e1624dfee2 (patch)
tree261043a0bdcd0373dc9bf69ef4c13276096c8205 /arch/nds32
parentb269c229b0e89aedb7943c06673b56b6052cf5e5 (diff)
downloadlinux-b13e8bf615fe26fb6a6dfe1b5a1c65e1624dfee2.tar.xz
nds32: add support for TIF_NOTIFY_SIGNAL
Wire up TIF_NOTIFY_SIGNAL handling for nds32. Cc: Nick Hu <nickhu@andestech.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'arch/nds32')
-rw-r--r--arch/nds32/include/asm/thread_info.h2
-rw-r--r--arch/nds32/kernel/ex-exit.S2
-rw-r--r--arch/nds32/kernel/signal.c2
3 files changed, 4 insertions, 2 deletions
diff --git a/arch/nds32/include/asm/thread_info.h b/arch/nds32/include/asm/thread_info.h
index c135111ec44e..d3967ad184f0 100644
--- a/arch/nds32/include/asm/thread_info.h
+++ b/arch/nds32/include/asm/thread_info.h
@@ -48,6 +48,7 @@ struct thread_info {
#define TIF_NEED_RESCHED 2
#define TIF_SINGLESTEP 3
#define TIF_NOTIFY_RESUME 4 /* callback before returning to user */
+#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
#define TIF_SYSCALL_TRACE 8
#define TIF_POLLING_NRFLAG 17
#define TIF_MEMDIE 18
@@ -57,6 +58,7 @@ struct thread_info {
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
+#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
diff --git a/arch/nds32/kernel/ex-exit.S b/arch/nds32/kernel/ex-exit.S
index 6a2966c2d8c8..b30699911b81 100644
--- a/arch/nds32/kernel/ex-exit.S
+++ b/arch/nds32/kernel/ex-exit.S
@@ -120,7 +120,7 @@ work_pending:
andi $p1, $r1, #_TIF_NEED_RESCHED
bnez $p1, work_resched
- andi $p1, $r1, #_TIF_SIGPENDING|#_TIF_NOTIFY_RESUME
+ andi $p1, $r1, #_TIF_SIGPENDING|#_TIF_NOTIFY_RESUME|#_TIF_NOTIFY_SIGNAL
beqz $p1, no_work_pending
move $r0, $sp ! 'regs'
diff --git a/arch/nds32/kernel/signal.c b/arch/nds32/kernel/signal.c
index 2acb94812af9..7e3ca430a223 100644
--- a/arch/nds32/kernel/signal.c
+++ b/arch/nds32/kernel/signal.c
@@ -376,7 +376,7 @@ static void do_signal(struct pt_regs *regs)
asmlinkage void
do_notify_resume(struct pt_regs *regs, unsigned int thread_flags)
{
- if (thread_flags & _TIF_SIGPENDING)
+ if (thread_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
do_signal(regs);
if (thread_flags & _TIF_NOTIFY_RESUME)