Chris Wilson 73e2232aa3 drm/i915: Only call tasklet_kill() on the first prepare_reset ...

tasklet_kill() will spin waiting for the current tasklet to be executed.
However, if tasklet_disable() has been called, then the tasklet is never
executed but permanently put back onto the runlist until
tasklet_enable() is called. Ergo, we cannot use tasklet_kill() inside a
disable/enable pair. This is the case when we call set-wedge from inside
i915_reset(), and another request was submitted to us concurrent to the
reset.

Fixes: 963ddd63c3 ("drm/i915: Suspend submission tasklets around wedging")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307134226.25492-6-chris@chris-wilson.co.uk
(cherry picked from commit 68ad361285)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

2018-03-16 14:35:35 +02:00

..

drm

drm/i915: Only call tasklet_kill() on the first prepare_reset

2018-03-16 14:35:35 +02:00

host1x

gpu: host1x: Use IOMMU groups

2017-12-21 14:52:36 +01:00

ipu-v3

gpu: ipu-v3: allow to build with COMPILE_TEST

2017-12-19 12:49:11 +01:00

vga

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11 14:34:03 -08:00

Makefile

…