On Tue, 06 Jun 2023, Luca Coelho <luciano.coelho@xxxxxxxxx> wrote: > In order to avoid flush_scheduled_work() usage, add a dedicated > workqueue in the drm_i915_private structure. In this way, we don't > need to use the system queue anymore. > > This change is mostly mechanical and based on Tetsuo's original > patch[1]. > > Link: https://patchwork.freedesktop.org/series/114608/ [1] > Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx> > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> > Cc: Jani Nikula <jani.nikula@xxxxxxxxx> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_display.c | 5 ++-- > .../drm/i915/display/intel_display_driver.c | 2 +- > drivers/gpu/drm/i915/display/intel_dmc.c | 2 +- > drivers/gpu/drm/i915/display/intel_dp.c | 2 +- > .../drm/i915/display/intel_dp_link_training.c | 3 ++- > drivers/gpu/drm/i915/display/intel_drrs.c | 4 +++- > drivers/gpu/drm/i915/display/intel_fbc.c | 2 +- > drivers/gpu/drm/i915/display/intel_fbdev.c | 3 ++- > drivers/gpu/drm/i915/display/intel_hdcp.c | 23 +++++++++++-------- > drivers/gpu/drm/i915/display/intel_hotplug.c | 18 ++++++++++----- > drivers/gpu/drm/i915/display/intel_opregion.c | 3 ++- > drivers/gpu/drm/i915/display/intel_pps.c | 4 +++- > drivers/gpu/drm/i915/display/intel_psr.c | 8 ++++--- > .../drm/i915/gt/intel_execlists_submission.c | 5 ++-- > .../gpu/drm/i915/gt/intel_gt_buffer_pool.c | 10 ++++---- > drivers/gpu/drm/i915/gt/intel_gt_irq.c | 2 +- > drivers/gpu/drm/i915/gt/intel_gt_requests.c | 10 ++++---- > drivers/gpu/drm/i915/gt/intel_reset.c | 2 +- > drivers/gpu/drm/i915/gt/intel_rps.c | 20 ++++++++-------- > drivers/gpu/drm/i915/gt/selftest_engine_cs.c | 2 +- > drivers/gpu/drm/i915/i915_driver.c | 13 +++++++++++ > drivers/gpu/drm/i915/i915_drv.h | 10 ++++++++ > drivers/gpu/drm/i915/i915_request.c | 2 +- > drivers/gpu/drm/i915/intel_wakeref.c | 2 +- > 24 files changed, 103 insertions(+), 54 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c > index f23dd937c27c..a2afb19ca0e3 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -7166,11 +7166,12 @@ intel_atomic_commit_ready(struct i915_sw_fence *fence, > break; > case FENCE_FREE: > { > + struct drm_i915_private *i915 = to_i915(state->base.dev); > struct intel_atomic_helper *helper = > - &to_i915(state->base.dev)->display.atomic_helper; > + &i915->display.atomic_helper; > > if (llist_add(&state->freed, &helper->free_list)) > - schedule_work(&helper->free_work); > + queue_work(i915->unordered_wq, &helper->free_work); > break; > } > } > diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c > index 60ce10fc7205..a9e36ddb6c1d 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_driver.c > +++ b/drivers/gpu/drm/i915/display/intel_display_driver.c > @@ -435,7 +435,7 @@ void intel_display_driver_remove_noirq(struct drm_i915_private *i915) > intel_unregister_dsm_handler(); > > /* flush any delayed tasks or pending work */ > - flush_scheduled_work(); > + flush_workqueue(i915->unordered_wq); > > intel_hdcp_component_fini(i915); > > diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c > index 8a88de67ff0a..5f479f3828bb 100644 > --- a/drivers/gpu/drm/i915/display/intel_dmc.c > +++ b/drivers/gpu/drm/i915/display/intel_dmc.c > @@ -1057,7 +1057,7 @@ void intel_dmc_init(struct drm_i915_private *i915) > i915->display.dmc.dmc = dmc; > > drm_dbg_kms(&i915->drm, "Loading %s\n", dmc->fw_path); > - schedule_work(&dmc->work); > + queue_work(i915->unordered_wq, &dmc->work); > > return; > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index f4192fda1a76..09dc6c88ad28 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -5251,7 +5251,7 @@ static void intel_dp_oob_hotplug_event(struct drm_connector *connector) > spin_lock_irq(&i915->irq_lock); > i915->display.hotplug.event_bits |= BIT(encoder->hpd_pin); > spin_unlock_irq(&i915->irq_lock); > - queue_delayed_work(system_wq, &i915->display.hotplug.hotplug_work, 0); > + queue_delayed_work(i915->unordered_wq, &i915->display.hotplug.hotplug_work, 0); > } > > static const struct drm_connector_funcs intel_dp_connector_funcs = { > diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c > index 0952a707358c..2cccc0a970f1 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c > +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c > @@ -1064,6 +1064,7 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp, > const struct intel_crtc_state *crtc_state) > { > struct intel_connector *intel_connector = intel_dp->attached_connector; > + struct drm_i915_private *i915 = dp_to_i915(intel_dp); > > if (!intel_digital_port_connected(&dp_to_dig_port(intel_dp)->base)) { > lt_dbg(intel_dp, DP_PHY_DPRX, "Link Training failed on disconnected sink.\n"); > @@ -1081,7 +1082,7 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp, > } > > /* Schedule a Hotplug Uevent to userspace to start modeset */ > - schedule_work(&intel_connector->modeset_retry_work); > + queue_work(i915->unordered_wq, &intel_connector->modeset_retry_work); > } > > /* Perform the link training on all LTTPRs and the DPRX on a link. */ > diff --git a/drivers/gpu/drm/i915/display/intel_drrs.c b/drivers/gpu/drm/i915/display/intel_drrs.c > index 760e63cdc0c8..0d35b6be5b6a 100644 > --- a/drivers/gpu/drm/i915/display/intel_drrs.c > +++ b/drivers/gpu/drm/i915/display/intel_drrs.c > @@ -111,7 +111,9 @@ static void intel_drrs_set_state(struct intel_crtc *crtc, > > static void intel_drrs_schedule_work(struct intel_crtc *crtc) > { > - mod_delayed_work(system_wq, &crtc->drrs.work, msecs_to_jiffies(1000)); > + struct drm_i915_private *i915 = to_i915(crtc->base.dev); > + > + mod_delayed_work(i915->unordered_wq, &crtc->drrs.work, msecs_to_jiffies(1000)); > } > > static unsigned int intel_drrs_frontbuffer_bits(const struct intel_crtc_state *crtc_state) > diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c > index 1966f9396201..89bb7c588f05 100644 > --- a/drivers/gpu/drm/i915/display/intel_fbc.c > +++ b/drivers/gpu/drm/i915/display/intel_fbc.c > @@ -1600,7 +1600,7 @@ static void __intel_fbc_handle_fifo_underrun_irq(struct intel_fbc *fbc) > if (READ_ONCE(fbc->underrun_detected)) > return; > > - schedule_work(&fbc->underrun_work); > + queue_work(fbc->i915->unordered_wq, &fbc->underrun_work); > } > > /** > diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c > index 3b5690acd720..1cc0ddc6a310 100644 > --- a/drivers/gpu/drm/i915/display/intel_fbdev.c > +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c > @@ -696,7 +696,8 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous > /* Don't block our own workqueue as this can > * be run in parallel with other i915.ko tasks. > */ > - schedule_work(&dev_priv->display.fbdev.suspend_work); > + queue_work(dev_priv->unordered_wq, > + &dev_priv->display.fbdev.suspend_work); > return; > } > } > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c > index 17542c28dfd5..5ed450111f77 100644 > --- a/drivers/gpu/drm/i915/display/intel_hdcp.c > +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c > @@ -983,6 +983,7 @@ static void intel_hdcp_update_value(struct intel_connector *connector, > struct drm_device *dev = connector->base.dev; > struct intel_digital_port *dig_port = intel_attached_dig_port(connector); > struct intel_hdcp *hdcp = &connector->hdcp; > + struct drm_i915_private *i915 = to_i915(connector->base.dev); > > drm_WARN_ON(connector->base.dev, !mutex_is_locked(&hdcp->mutex)); > > @@ -1001,7 +1002,7 @@ static void intel_hdcp_update_value(struct intel_connector *connector, > hdcp->value = value; > if (update_property) { > drm_connector_get(&connector->base); > - schedule_work(&hdcp->prop_work); > + queue_work(i915->unordered_wq, &hdcp->prop_work); > } > } > > @@ -2090,16 +2091,17 @@ static void intel_hdcp_check_work(struct work_struct *work) > struct intel_hdcp, > check_work); > struct intel_connector *connector = intel_hdcp_to_connector(hdcp); > + struct drm_i915_private *i915 = to_i915(connector->base.dev); > > if (drm_connector_is_unregistered(&connector->base)) > return; > > if (!intel_hdcp2_check_link(connector)) > - schedule_delayed_work(&hdcp->check_work, > - DRM_HDCP2_CHECK_PERIOD_MS); > + queue_delayed_work(i915->unordered_wq, &hdcp->check_work, > + DRM_HDCP2_CHECK_PERIOD_MS); > else if (!intel_hdcp_check_link(connector)) > - schedule_delayed_work(&hdcp->check_work, > - DRM_HDCP_CHECK_PERIOD_MS); > + queue_delayed_work(i915->unordered_wq, &hdcp->check_work, > + DRM_HDCP_CHECK_PERIOD_MS); > } > > static int i915_hdcp_component_bind(struct device *i915_kdev, > @@ -2398,7 +2400,8 @@ int intel_hdcp_enable(struct intel_atomic_state *state, > } > > if (!ret) { > - schedule_delayed_work(&hdcp->check_work, check_link_interval); > + queue_delayed_work(i915->unordered_wq, &hdcp->check_work, > + check_link_interval); > intel_hdcp_update_value(connector, > DRM_MODE_CONTENT_PROTECTION_ENABLED, > true); > @@ -2447,6 +2450,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, > to_intel_connector(conn_state->connector); > struct intel_hdcp *hdcp = &connector->hdcp; > bool content_protection_type_changed, desired_and_not_enabled = false; > + struct drm_i915_private *i915 = to_i915(connector->base.dev); > > if (!connector->hdcp.shim) > return; > @@ -2473,7 +2477,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, > mutex_lock(&hdcp->mutex); > hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; > drm_connector_get(&connector->base); > - schedule_work(&hdcp->prop_work); > + queue_work(i915->unordered_wq, &hdcp->prop_work); > mutex_unlock(&hdcp->mutex); > } > > @@ -2490,7 +2494,7 @@ void intel_hdcp_update_pipe(struct intel_atomic_state *state, > */ > if (!desired_and_not_enabled && !content_protection_type_changed) { > drm_connector_get(&connector->base); > - schedule_work(&hdcp->prop_work); > + queue_work(i915->unordered_wq, &hdcp->prop_work); > } > } > > @@ -2602,6 +2606,7 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, > void intel_hdcp_handle_cp_irq(struct intel_connector *connector) > { > struct intel_hdcp *hdcp = &connector->hdcp; > + struct drm_i915_private *i915 = to_i915(connector->base.dev); > > if (!hdcp->shim) > return; > @@ -2609,5 +2614,5 @@ void intel_hdcp_handle_cp_irq(struct intel_connector *connector) > atomic_inc(&connector->hdcp.cp_irq_count); > wake_up_all(&connector->hdcp.cp_irq_queue); > > - schedule_delayed_work(&hdcp->check_work, 0); > + queue_delayed_work(i915->unordered_wq, &hdcp->check_work, 0); > } > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c > index 23a5e1a875f1..1160fa20433b 100644 > --- a/drivers/gpu/drm/i915/display/intel_hotplug.c > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c > @@ -212,7 +212,8 @@ intel_hpd_irq_storm_switch_to_polling(struct drm_i915_private *dev_priv) > /* Enable polling and queue hotplug re-enabling. */ > if (hpd_disabled) { > drm_kms_helper_poll_enable(&dev_priv->drm); > - mod_delayed_work(system_wq, &dev_priv->display.hotplug.reenable_work, > + mod_delayed_work(dev_priv->unordered_wq, > + &dev_priv->display.hotplug.reenable_work, > msecs_to_jiffies(HPD_STORM_REENABLE_DELAY)); > } > } > @@ -339,7 +340,8 @@ static void i915_digport_work_func(struct work_struct *work) > spin_lock_irq(&dev_priv->irq_lock); > dev_priv->display.hotplug.event_bits |= old_bits; > spin_unlock_irq(&dev_priv->irq_lock); > - queue_delayed_work(system_wq, &dev_priv->display.hotplug.hotplug_work, 0); > + queue_delayed_work(dev_priv->unordered_wq, > + &dev_priv->display.hotplug.hotplug_work, 0); > } > } > > @@ -446,7 +448,8 @@ static void i915_hotplug_work_func(struct work_struct *work) > dev_priv->display.hotplug.retry_bits |= retry; > spin_unlock_irq(&dev_priv->irq_lock); > > - mod_delayed_work(system_wq, &dev_priv->display.hotplug.hotplug_work, > + mod_delayed_work(dev_priv->unordered_wq, > + &dev_priv->display.hotplug.hotplug_work, > msecs_to_jiffies(HPD_RETRY_DELAY)); > } > } > @@ -577,7 +580,8 @@ void intel_hpd_irq_handler(struct drm_i915_private *dev_priv, > if (queue_dig) > queue_work(dev_priv->display.hotplug.dp_wq, &dev_priv->display.hotplug.dig_port_work); > if (queue_hp) > - queue_delayed_work(system_wq, &dev_priv->display.hotplug.hotplug_work, 0); > + queue_delayed_work(dev_priv->unordered_wq, > + &dev_priv->display.hotplug.hotplug_work, 0); > } > > /** > @@ -687,7 +691,8 @@ void intel_hpd_poll_enable(struct drm_i915_private *dev_priv) > * As well, there's no issue if we race here since we always reschedule > * this worker anyway > */ > - schedule_work(&dev_priv->display.hotplug.poll_init_work); > + queue_work(dev_priv->unordered_wq, > + &dev_priv->display.hotplug.poll_init_work); > } > > /** > @@ -715,7 +720,8 @@ void intel_hpd_poll_disable(struct drm_i915_private *dev_priv) > return; > > WRITE_ONCE(dev_priv->display.hotplug.poll_enabled, false); > - schedule_work(&dev_priv->display.hotplug.poll_init_work); > + queue_work(dev_priv->unordered_wq, > + &dev_priv->display.hotplug.poll_init_work); > } > > void intel_hpd_init_early(struct drm_i915_private *i915) > diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c > index b7973a05d022..84078fb82b2f 100644 > --- a/drivers/gpu/drm/i915/display/intel_opregion.c > +++ b/drivers/gpu/drm/i915/display/intel_opregion.c > @@ -635,7 +635,8 @@ static void asle_work(struct work_struct *work) > void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) > { > if (dev_priv->display.opregion.asle) > - schedule_work(&dev_priv->display.opregion.asle_work); > + queue_work(dev_priv->unordered_wq, > + &dev_priv->display.opregion.asle_work); > } > > #define ACPI_EV_DISPLAY_SWITCH (1<<0) > diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c > index 5e7ba594e7e7..73f0f1714b37 100644 > --- a/drivers/gpu/drm/i915/display/intel_pps.c > +++ b/drivers/gpu/drm/i915/display/intel_pps.c > @@ -867,6 +867,7 @@ static void edp_panel_vdd_work(struct work_struct *__work) > > static void edp_panel_vdd_schedule_off(struct intel_dp *intel_dp) > { > + struct drm_i915_private *i915 = dp_to_i915(intel_dp); > unsigned long delay; > > /* > @@ -882,7 +883,8 @@ static void edp_panel_vdd_schedule_off(struct intel_dp *intel_dp) > * operations. > */ > delay = msecs_to_jiffies(intel_dp->pps.panel_power_cycle_delay * 5); > - schedule_delayed_work(&intel_dp->pps.panel_vdd_work, delay); > + queue_delayed_work(i915->unordered_wq, > + &intel_dp->pps.panel_vdd_work, delay); > } > > /* > diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c > index ea0389c5f656..d58ed9b62e67 100644 > --- a/drivers/gpu/drm/i915/display/intel_psr.c > +++ b/drivers/gpu/drm/i915/display/intel_psr.c > @@ -341,7 +341,7 @@ void intel_psr_irq_handler(struct intel_dp *intel_dp, u32 psr_iir) > */ > intel_de_rmw(dev_priv, imr_reg, 0, psr_irq_psr_error_bit_get(intel_dp)); > > - schedule_work(&intel_dp->psr.work); > + queue_work(dev_priv->unordered_wq, &intel_dp->psr.work); > } > } > > @@ -2440,6 +2440,8 @@ static void > tgl_dc3co_flush_locked(struct intel_dp *intel_dp, unsigned int frontbuffer_bits, > enum fb_op_origin origin) > { > + struct drm_i915_private *i915 = dp_to_i915(intel_dp); > + > if (!intel_dp->psr.dc3co_exitline || !intel_dp->psr.psr2_enabled || > !intel_dp->psr.active) > return; > @@ -2453,7 +2455,7 @@ tgl_dc3co_flush_locked(struct intel_dp *intel_dp, unsigned int frontbuffer_bits, > return; > > tgl_psr2_enable_dc3co(intel_dp); > - mod_delayed_work(system_wq, &intel_dp->psr.dc3co_work, > + mod_delayed_work(i915->unordered_wq, &intel_dp->psr.dc3co_work, > intel_dp->psr.dc3co_exit_delay); > } > > @@ -2493,7 +2495,7 @@ static void _psr_flush_handle(struct intel_dp *intel_dp) > psr_force_hw_tracking_exit(intel_dp); > > if (!intel_dp->psr.active && !intel_dp->psr.busy_frontbuffer_bits) > - schedule_work(&intel_dp->psr.work); > + queue_work(dev_priv->unordered_wq, &intel_dp->psr.work); > } > } > > diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c > index 750326434677..2ebd937f3b4c 100644 > --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c > +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c > @@ -2327,6 +2327,7 @@ static u32 active_ccid(struct intel_engine_cs *engine) > > static void execlists_capture(struct intel_engine_cs *engine) > { > + struct drm_i915_private *i915 = engine->i915; > struct execlists_capture *cap; > > if (!IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)) > @@ -2375,7 +2376,7 @@ static void execlists_capture(struct intel_engine_cs *engine) > goto err_rq; > > INIT_WORK(&cap->work, execlists_capture_work); > - schedule_work(&cap->work); > + queue_work(i915->unordered_wq, &cap->work); > return; > > err_rq: > @@ -3680,7 +3681,7 @@ static void virtual_context_destroy(struct kref *kref) > * lock, we can delegate the free of the engine to an RCU worker. > */ > INIT_RCU_WORK(&ve->rcu, rcu_virtual_context_destroy); > - queue_rcu_work(system_wq, &ve->rcu); > + queue_rcu_work(ve->context.engine->i915->unordered_wq, &ve->rcu); > } > > static void virtual_engine_initial_hint(struct virtual_engine *ve) > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c b/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c > index cadfd85785b1..86b5a9ba323d 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c > +++ b/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c > @@ -88,10 +88,11 @@ static void pool_free_work(struct work_struct *wrk) > { > struct intel_gt_buffer_pool *pool = > container_of(wrk, typeof(*pool), work.work); > + struct intel_gt *gt = container_of(pool, struct intel_gt, buffer_pool); > > if (pool_free_older_than(pool, HZ)) > - schedule_delayed_work(&pool->work, > - round_jiffies_up_relative(HZ)); > + queue_delayed_work(gt->i915->unordered_wq, &pool->work, > + round_jiffies_up_relative(HZ)); > } > > static void pool_retire(struct i915_active *ref) > @@ -99,6 +100,7 @@ static void pool_retire(struct i915_active *ref) > struct intel_gt_buffer_pool_node *node = > container_of(ref, typeof(*node), active); > struct intel_gt_buffer_pool *pool = node->pool; > + struct intel_gt *gt = container_of(pool, struct intel_gt, buffer_pool); > struct list_head *list = bucket_for_size(pool, node->obj->base.size); > unsigned long flags; > > @@ -116,8 +118,8 @@ static void pool_retire(struct i915_active *ref) > WRITE_ONCE(node->age, jiffies ?: 1); /* 0 reserved for active nodes */ > spin_unlock_irqrestore(&pool->lock, flags); > > - schedule_delayed_work(&pool->work, > - round_jiffies_up_relative(HZ)); > + queue_delayed_work(gt->i915->unordered_wq, &pool->work, > + round_jiffies_up_relative(HZ)); > } > > void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node) > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c > index 8f888d36f16d..62fd00c9e519 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c > +++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c > @@ -376,7 +376,7 @@ static void gen7_parity_error_irq_handler(struct intel_gt *gt, u32 iir) > if (iir & GT_RENDER_L3_PARITY_ERROR_INTERRUPT) > gt->i915->l3_parity.which_slice |= 1 << 0; > > - schedule_work(>->i915->l3_parity.error_work); > + queue_work(gt->i915->unordered_wq, >->i915->l3_parity.error_work); > } > > void gen6_gt_irq_handler(struct intel_gt *gt, u32 gt_iir) > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.c b/drivers/gpu/drm/i915/gt/intel_gt_requests.c > index 1dfd01668c79..d1a382dfaa1d 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gt_requests.c > +++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.c > @@ -116,7 +116,7 @@ void intel_engine_add_retire(struct intel_engine_cs *engine, > GEM_BUG_ON(intel_engine_is_virtual(engine)); > > if (add_retire(engine, tl)) > - schedule_work(&engine->retire_work); > + queue_work(engine->i915->unordered_wq, &engine->retire_work); > } > > void intel_engine_init_retire(struct intel_engine_cs *engine) > @@ -207,8 +207,8 @@ static void retire_work_handler(struct work_struct *work) > struct intel_gt *gt = > container_of(work, typeof(*gt), requests.retire_work.work); > > - schedule_delayed_work(>->requests.retire_work, > - round_jiffies_up_relative(HZ)); > + queue_delayed_work(gt->i915->unordered_wq, >->requests.retire_work, > + round_jiffies_up_relative(HZ)); > intel_gt_retire_requests(gt); > } > > @@ -224,8 +224,8 @@ void intel_gt_park_requests(struct intel_gt *gt) > > void intel_gt_unpark_requests(struct intel_gt *gt) > { > - schedule_delayed_work(>->requests.retire_work, > - round_jiffies_up_relative(HZ)); > + queue_delayed_work(gt->i915->unordered_wq, >->requests.retire_work, > + round_jiffies_up_relative(HZ)); > } > > void intel_gt_fini_requests(struct intel_gt *gt) > diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c > index 195ff72d7a14..e2152f75ba2e 100644 > --- a/drivers/gpu/drm/i915/gt/intel_reset.c > +++ b/drivers/gpu/drm/i915/gt/intel_reset.c > @@ -1625,7 +1625,7 @@ void __intel_init_wedge(struct intel_wedge_me *w, > w->name = name; > > INIT_DELAYED_WORK_ONSTACK(&w->work, intel_wedge_me); > - schedule_delayed_work(&w->work, timeout); > + queue_delayed_work(gt->i915->unordered_wq, &w->work, timeout); > } > > void __intel_fini_wedge(struct intel_wedge_me *w) > diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c > index e68a99205599..e92e626d4994 100644 > --- a/drivers/gpu/drm/i915/gt/intel_rps.c > +++ b/drivers/gpu/drm/i915/gt/intel_rps.c > @@ -73,13 +73,14 @@ static void set(struct intel_uncore *uncore, i915_reg_t reg, u32 val) > static void rps_timer(struct timer_list *t) > { > struct intel_rps *rps = from_timer(rps, t, timer); > + struct intel_gt *gt = rps_to_gt(rps); > struct intel_engine_cs *engine; > ktime_t dt, last, timestamp; > enum intel_engine_id id; > s64 max_busy[3] = {}; > > timestamp = 0; > - for_each_engine(engine, rps_to_gt(rps), id) { > + for_each_engine(engine, gt, id) { > s64 busy; > int i; > > @@ -123,7 +124,7 @@ static void rps_timer(struct timer_list *t) > > busy += div_u64(max_busy[i], 1 << i); > } > - GT_TRACE(rps_to_gt(rps), > + GT_TRACE(gt, > "busy:%lld [%d%%], max:[%lld, %lld, %lld], interval:%d\n", > busy, (int)div64_u64(100 * busy, dt), > max_busy[0], max_busy[1], max_busy[2], > @@ -133,12 +134,12 @@ static void rps_timer(struct timer_list *t) > rps->cur_freq < rps->max_freq_softlimit) { > rps->pm_iir |= GEN6_PM_RP_UP_THRESHOLD; > rps->pm_interval = 1; > - schedule_work(&rps->work); > + queue_work(gt->i915->unordered_wq, &rps->work); > } else if (100 * busy < rps->power.down_threshold * dt && > rps->cur_freq > rps->min_freq_softlimit) { > rps->pm_iir |= GEN6_PM_RP_DOWN_THRESHOLD; > rps->pm_interval = 1; > - schedule_work(&rps->work); > + queue_work(gt->i915->unordered_wq, &rps->work); > } else { > rps->last_adj = 0; > } > @@ -973,7 +974,7 @@ static int rps_set_boost_freq(struct intel_rps *rps, u32 val) > } > mutex_unlock(&rps->lock); > if (boost) > - schedule_work(&rps->work); > + queue_work(rps_to_gt(rps)->i915->unordered_wq, &rps->work); > > return 0; > } > @@ -1025,7 +1026,8 @@ void intel_rps_boost(struct i915_request *rq) > if (!atomic_fetch_inc(&slpc->num_waiters)) { > GT_TRACE(rps_to_gt(rps), "boost fence:%llx:%llx\n", > rq->fence.context, rq->fence.seqno); > - schedule_work(&slpc->boost_work); > + queue_work(rps_to_gt(rps)->i915->unordered_wq, > + &slpc->boost_work); > } > > return; > @@ -1041,7 +1043,7 @@ void intel_rps_boost(struct i915_request *rq) > rq->fence.context, rq->fence.seqno); > > if (READ_ONCE(rps->cur_freq) < rps->boost_freq) > - schedule_work(&rps->work); > + queue_work(rps_to_gt(rps)->i915->unordered_wq, &rps->work); > > WRITE_ONCE(rps->boosts, rps->boosts + 1); /* debug only */ > } > @@ -1900,7 +1902,7 @@ void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir) > gen6_gt_pm_mask_irq(gt, events); > > rps->pm_iir |= events; > - schedule_work(&rps->work); > + queue_work(gt->i915->unordered_wq, &rps->work); > } > > void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir) > @@ -1917,7 +1919,7 @@ void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir) > gen6_gt_pm_mask_irq(gt, events); > rps->pm_iir |= events; > > - schedule_work(&rps->work); > + queue_work(gt->i915->unordered_wq, &rps->work); > spin_unlock(gt->irq_lock); > } > > diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c b/drivers/gpu/drm/i915/gt/selftest_engine_cs.c > index 542ce6d2de19..78cdfc6f315f 100644 > --- a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c > +++ b/drivers/gpu/drm/i915/gt/selftest_engine_cs.c > @@ -27,7 +27,7 @@ static void perf_begin(struct intel_gt *gt) > > /* Boost gpufreq to max [waitboost] and keep it fixed */ > atomic_inc(>->rps.num_waiters); > - schedule_work(>->rps.work); > + queue_work(gt->i915->unordered_wq, >->rps.work); > flush_work(>->rps.work); > } > > diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c > index ace8534b6cc5..75cbc43b326d 100644 > --- a/drivers/gpu/drm/i915/i915_driver.c > +++ b/drivers/gpu/drm/i915/i915_driver.c > @@ -132,8 +132,20 @@ static int i915_workqueues_init(struct drm_i915_private *dev_priv) > if (dev_priv->display.hotplug.dp_wq == NULL) > goto out_free_wq; > > + /* > + * The unordered i915 workqueue should be used for all work > + * scheduling that do not require running in order, which used > + * to be scheduled on the system_wq before moving to a driver > + * instance due deprecation of flush_scheduled_work(). > + */ > + dev_priv->unordered_wq = alloc_workqueue("i915-unordered", 0, 0); > + if (dev_priv->unordered_wq == NULL) > + goto out_free_dp_wq; > + > return 0; > > +out_free_dp_wq: > + destroy_workqueue(dev_priv->display.hotplug.dp_wq); > out_free_wq: > destroy_workqueue(dev_priv->wq); > out_err: > @@ -144,6 +156,7 @@ static int i915_workqueues_init(struct drm_i915_private *dev_priv) > > static void i915_workqueues_cleanup(struct drm_i915_private *dev_priv) > { > + destroy_workqueue(dev_priv->unordered_wq); > destroy_workqueue(dev_priv->display.hotplug.dp_wq); > destroy_workqueue(dev_priv->wq); > } > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index 812665ad78d2..08c8f8c249bb 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -260,6 +260,16 @@ struct drm_i915_private { > */ > struct workqueue_struct *wq; > > + /** > + * unordered_wq - internal workqueue for unordered work > + * > + * This workqueue should be used for all unordered work > + * scheduling within i915, which used to be scheduled on the > + * system_wq before moving to a driver instance due > + * deprecation of flush_scheduled_work(). > + */ > + struct workqueue_struct *unordered_wq; > + > /* pm private clock gating functions */ > const struct drm_i915_clock_gating_funcs *clock_gating_funcs; > > diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c > index 630a732aaecc..894068bb37b6 100644 > --- a/drivers/gpu/drm/i915/i915_request.c > +++ b/drivers/gpu/drm/i915/i915_request.c > @@ -290,7 +290,7 @@ static enum hrtimer_restart __rq_watchdog_expired(struct hrtimer *hrtimer) > > if (!i915_request_completed(rq)) { > if (llist_add(&rq->watchdog.link, >->watchdog.list)) > - schedule_work(>->watchdog.work); > + queue_work(gt->i915->unordered_wq, >->watchdog.work); > } else { > i915_request_put(rq); > } > diff --git a/drivers/gpu/drm/i915/intel_wakeref.c b/drivers/gpu/drm/i915/intel_wakeref.c > index 40aafe676017..718f2f1b6174 100644 > --- a/drivers/gpu/drm/i915/intel_wakeref.c > +++ b/drivers/gpu/drm/i915/intel_wakeref.c > @@ -75,7 +75,7 @@ void __intel_wakeref_put_last(struct intel_wakeref *wf, unsigned long flags) > > /* Assume we are not in process context and so cannot sleep. */ > if (flags & INTEL_WAKEREF_PUT_ASYNC || !mutex_trylock(&wf->mutex)) { > - mod_delayed_work(system_wq, &wf->work, > + mod_delayed_work(wf->i915->unordered_wq, &wf->work, > FIELD_GET(INTEL_WAKEREF_PUT_DELAY, flags)); > return; > } -- Jani Nikula, Intel Open Source Graphics Center
