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@xxxxxxxxxxxxxxxxxx> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_reset.c | 3 +++ 1 file changed, 3 insertions(+) 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)); -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
