[Intel-gfx] [PATCH] drm/i915: Depend on !PREEMPT_RT.

Mon Feb 28 10:35:45 UTC 2022

On 2022-02-28 10:10:48 [+0000], Tvrtko Ursulin wrote:
> Hi,
Hi,

> Could you paste a link to the queue of i915 patches pending for a quick
> overview of how much work there is and in what areas?

Last post to the list:
  https://https://lkml.kernel.org/r/.kernel.org/all/20211214140301.520464-1-bigeasy@linutronix.de/

or if you look at the DRM section in 
   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/tree/patches/series?h=v5.17-rc6-rt10-patches#n156

you see:
   0003-drm-i915-Use-preempt_disable-enable_rt-where-recomme.patch
   0004-drm-i915-Don-t-disable-interrupts-on-PREEMPT_RT-duri.patch
   0005-drm-i915-Don-t-check-for-atomic-context-on-PREEMPT_R.patch
   0006-drm-i915-Disable-tracing-points-on-PREEMPT_RT.patch
   0007-drm-i915-skip-DRM_I915_LOW_LEVEL_TRACEPOINTS-with-NO.patch
   0008-drm-i915-gt-Queue-and-wait-for-the-irq_work-item.patch
   0009-drm-i915-gt-Use-spin_lock_irq-instead-of-local_irq_d.patch
   0010-drm-i915-Drop-the-irqs_disabled-check.patch
   Revert-drm-i915-Depend-on-PREEMPT_RT.patch

and you could view them from
   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/tree/patches?h=v5.17-rc6-rt10-patches

> Also, I assume due absence of ARCH_SUPPORTS_RT being defined by any arch,
> that something more is not yet ready?

Correct. Looking at what I have queued for the next merge window I have
less than 20 patches (excluding i915 and printk) before ARCH_SUPPORTS_RT
can be enabled for x86-64.

> Regards,
> 
> Tvrtko

Sebastian