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Commit f4de7794 authored by Chris Wilson's avatar Chris Wilson
Browse files

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: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180802100631.31305-2-chris@chris-wilson.co.uk
parent 46e831ab

drivers/gpu/drm/i915/i915_irq.c

+2 −5
Original line number Diff line number Diff line
@@ -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) {