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path: root/drivers/gpu/drm/i915/i915_request.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
-rw-r--r--drivers/gpu/drm/i915/i915_request.c52
1 files changed, 3 insertions, 49 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 585242831974..a9d0bde16443 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -255,47 +255,6 @@ int i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno)
return reset_all_global_seqno(i915, seqno - 1);
}
-static void mark_busy(struct drm_i915_private *i915)
-{
- if (i915->gt.awake)
- return;
-
- GEM_BUG_ON(!i915->gt.active_requests);
-
- intel_runtime_pm_get_noresume(i915);
-
- /*
- * It seems that the DMC likes to transition between the DC states a lot
- * when there are no connected displays (no active power domains) during
- * command submission.
- *
- * This activity has negative impact on the performance of the chip with
- * huge latencies observed in the interrupt handler and elsewhere.
- *
- * Work around it by grabbing a GT IRQ power domain whilst there is any
- * GT activity, preventing any DC state transitions.
- */
- intel_display_power_get(i915, POWER_DOMAIN_GT_IRQ);
-
- i915->gt.awake = true;
- if (unlikely(++i915->gt.epoch == 0)) /* keep 0 as invalid */
- i915->gt.epoch = 1;
-
- intel_enable_gt_powersave(i915);
- i915_update_gfx_val(i915);
- if (INTEL_GEN(i915) >= 6)
- gen6_rps_busy(i915);
- i915_pmu_gt_unparked(i915);
-
- intel_engines_unpark(i915);
-
- i915_queue_hangcheck(i915);
-
- queue_delayed_work(i915->wq,
- &i915->gt.retire_work,
- round_jiffies_up_relative(HZ));
-}
-
static int reserve_engine(struct intel_engine_cs *engine)
{
struct drm_i915_private *i915 = engine->i915;
@@ -313,7 +272,7 @@ static int reserve_engine(struct intel_engine_cs *engine)
}
if (!i915->gt.active_requests++)
- mark_busy(i915);
+ i915_gem_unpark(i915);
return 0;
}
@@ -322,13 +281,8 @@ static void unreserve_engine(struct intel_engine_cs *engine)
{
struct drm_i915_private *i915 = engine->i915;
- if (!--i915->gt.active_requests) {
- /* Cancel the mark_busy() from our reserve_engine() */
- GEM_BUG_ON(!i915->gt.awake);
- mod_delayed_work(i915->wq,
- &i915->gt.idle_work,
- msecs_to_jiffies(100));
- }
+ if (!--i915->gt.active_requests)
+ i915_gem_park(i915);
GEM_BUG_ON(!engine->timeline->inflight_seqnos);
engine->timeline->inflight_seqnos--;