Messages in this thread | | | Date | Wed, 16 Oct 2019 09:39:06 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH 06/34] csky: Use CONFIG_PREEMPTION |
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On 2019-10-16 07:29:34 [+0800], Guo Ren wrote: > Could CONFIG_PREEMPT_RT be supported in csky ? Any arch backend porting ?
It could. HIGH_RES_TIMERS is useful and IRQ_FORCED_THREADING is required. You already have PREEMPT(ION) which is good. Then you would have to try and my guess would be that some of spinlock_t vs raw_spinlock_t could require changes but we should have lockdep support for that which would make things easier.
Sebastian
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