drm/i915: Unconditionally clear the pm/guc GT IIR upon acking
Having stored the IIR for action, we should always clear it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180802100631.31305-2-chris@chris-wilson.co.uk
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 90628a4..e37e3ec 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1534,11 +1534,8 @@ static void gen8_gt_irq_ack(struct drm_i915_private *i915,
if (master_ctl & (GEN8_GT_PM_IRQ | GEN8_GT_GUC_IRQ)) {
gt_iir[2] = raw_reg_read(regs, GEN8_GT_IIR(2));
- if (likely(gt_iir[2] & (i915->pm_rps_events |
- i915->pm_guc_events)))
- raw_reg_write(regs, GEN8_GT_IIR(2),
- gt_iir[2] & (i915->pm_rps_events |
- i915->pm_guc_events));
+ if (likely(gt_iir[2]))
+ raw_reg_write(regs, GEN8_GT_IIR(2), gt_iir[2]);
}
if (master_ctl & GEN8_GT_VECS_IRQ) {