Could CONFIG_PREEMPT_RT be supported in csky ? Any arch backend porting ? On Wed, Oct 16, 2019 at 3:18 AM Sebastian Andrzej Siewior <bige...@linutronix.de> wrote: > > From: Thomas Gleixner <t...@linutronix.de> > > CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT. > Both PREEMPT and PREEMPT_RT require the same functionality which today > depends on CONFIG_PREEMPT. > > Switch the entry code over to use CONFIG_PREEMPTION. > > Cc: Guo Ren <guo...@kernel.org> > Signed-off-by: Thomas Gleixner <t...@linutronix.de> > Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de> > --- > arch/csky/kernel/entry.S | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S > index a7a5b67df8989..0077063280000 100644 > --- a/arch/csky/kernel/entry.S > +++ b/arch/csky/kernel/entry.S > @@ -277,7 +277,7 @@ ENTRY(csky_irq) > zero_fp > psrset ee > > -#ifdef CONFIG_PREEMPT > +#ifdef CONFIG_PREEMPTION > mov r9, sp /* Get current stack pointer */ > bmaski r10, THREAD_SHIFT > andn r9, r10 /* Get thread_info */ > @@ -294,7 +294,7 @@ ENTRY(csky_irq) > mov a0, sp > jbsr csky_do_IRQ > > -#ifdef CONFIG_PREEMPT > +#ifdef CONFIG_PREEMPTION > subi r12, 1 > stw r12, (r9, TINFO_PREEMPT) > cmpnei r12, 0 > -- > 2.23.0 >
-- Best Regards Guo Ren ML: https://lore.kernel.org/linux-csky/
