| Message ID | 20190218091056.21989-1-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915: Restore interrupt enabling after a reset | expand |
diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c index 5a067a4b3d5d..f3b756d2b61b 100644 --- a/drivers/gpu/drm/i915/i915_reset.c +++ b/drivers/gpu/drm/i915/i915_reset.c @@ -685,6 +685,9 @@ static int gt_reset(struct drm_i915_private *i915, unsigned int stalled_mask) if (err) return err; + if (INTEL_INFO(i915)->gpu_reset_clobbers_display) + i915->drm.driver->irq_postinstall(&i915->drm); + for_each_engine(engine, i915, id) intel_engine_reset(engine, stalled_mask & ENGINE_MASK(id));
At least on i965g and i965gm, performing a device reset clobbers the IER resulting in loss of interrupts thereafter. So, run the irq_postinstall hook to restore them. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/gpu/drm/i915/i915_reset.c | 3 +++ 1 file changed, 3 insertions(+)