diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-23 14:26:46 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-23 19:44:21 +0100 |
commit | 6dcb85a0ad990455ae7c596e3fc966ad9c1ba9c5 (patch) | |
tree | 646ebb8f3c7eb9b207d44f9a1c5b2af16b8a7eb5 /drivers/gpio/gpiolib-legacy.c | |
parent | 0b14d96820d1fd05ea610a0f5f952b34e5a24f2c (diff) |
drm/i915: Hold irq-off for the entire fake lock period
Sadly lockdep records when the irqs are re-enabled and then marks up the
fake lock as being irq-unsafe. Our hand is forced and so we must mark up
the entire fake lock critical section as irq-off.
Hopefully this is the last tweak required!
v2: Not quite, we need to mark the timeline spinlock as irqsafe. That
was a genuine bug being hidden by the earlier lockdep splat.
Fixes: d67739268cf0 ("drm/i915/gt: Mark up the nested engine-pm timeline lock as irqsafe")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823132700.25286-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpio/gpiolib-legacy.c')
0 files changed, 0 insertions, 0 deletions