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 <[email protected]> Cc: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/i915_reset.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c index 5a067a4b3d5d..c5bb4a67a81b 100644 --- a/drivers/gpu/drm/i915/i915_reset.c +++ b/drivers/gpu/drm/i915/i915_reset.c @@ -994,10 +994,12 @@ void i915_reset(struct drm_i915_private *i915, goto error; } + intel_irq_uninstall(i915); if (do_reset(i915, stalled_mask)) { dev_err(i915->drm.dev, "Failed to reset chip\n"); goto taint; } + intel_irq_install(i915); intel_overlay_reset(i915); -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
