diff mbox series

[1/3] drm/i915: add a dedicated workqueue inside drm_i915_private

Message ID 20230511082013.1313484-2-luciano.coelho@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: implement internal workqueues | expand

Commit Message

Luca Coelho May 11, 2023, 8:20 a.m. UTC
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@I-love.SAKURA.ne.jp>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 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 |  5 ++--
 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            |  7 ++++++
 drivers/gpu/drm/i915/i915_drv.h               |  3 ++-
 drivers/gpu/drm/i915/i915_request.c           |  2 +-
 23 files changed, 89 insertions(+), 55 deletions(-)

Comments

Tvrtko Ursulin May 12, 2023, 12:34 p.m. UTC | #1
On 11/05/2023 09:20, Luca Coelho 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@I-love.SAKURA.ne.jp>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Cc: Jani Nikula <jani.nikula@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

[snip]

> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 14c5338c96a6..06cd956b03ab 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -259,6 +259,8 @@ struct drm_i915_private {
>   	 */
>   	struct workqueue_struct *wq;
>   
> +	struct workqueue_struct *i915_wq;

Two things.

First, the i915->wq has a nice big comments accompanying both the 
declaration and initialization. Lets come up with at least one solid 
comment for the new one too. No one will otherwise know when to use 
i915->wq and when i915->i915_wq.

Which leads me to the second point. Lets try find a nicer name for it. 
i915->i915_wq reads a bit bad when we both have i915->wq and also i915 
mentioned twice. Easy cheat option could be to signify the property in 
the name - like i915->unordered_wq. Or something. It may depend on what 
that "solid comment" from the first point will be. I mean what we decide 
the prescribed use cases for the new wq will be.

Regards,

Tvrtko
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 1d5d42a40803..155b8e378f7e 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7127,11 +7127,12 @@  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->i915_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..bd61418fef15 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->i915_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..743c5b3e610d 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->i915_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 0cc57681dc4d..02ce619ecd70 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5250,7 +5250,7 @@  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->i915_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 e92c62bcc9b8..f7eb431f03fa 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -1130,9 +1130,10 @@  static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
 {
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 
 	if (intel_dp->hobl_active) {
-		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+		drm_dbg_kms(&i915->drm,
 			    "[ENCODER:%d:%s] Link Training failed with HOBL active, "
 			    "not enabling it from now on",
 			    encoder->base.base.id, encoder->base.name);
@@ -1144,7 +1145,7 @@  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->i915_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..0939dbe453e0 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->i915_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 11bb8cf9c9d0..177d6e6bcad0 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->i915_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 aab1ae74a8f7..af0df232b806 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -689,7 +689,8 @@  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->i915_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 650232c4892b..85a71609563f 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -1019,6 +1019,7 @@  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));
 
@@ -1037,7 +1038,7 @@  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->i915_wq, &hdcp->prop_work);
 	}
 }
 
@@ -2132,16 +2133,17 @@  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->i915_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->i915_wq, &hdcp->check_work,
+				   DRM_HDCP_CHECK_PERIOD_MS);
 }
 
 static int i915_hdcp_component_bind(struct device *i915_kdev,
@@ -2386,7 +2388,8 @@  int intel_hdcp_enable(struct intel_connector *connector,
 	}
 
 	if (!ret) {
-		schedule_delayed_work(&hdcp->check_work, check_link_interval);
+		queue_delayed_work(dev_priv->i915_wq, &hdcp->check_work,
+				   check_link_interval);
 		intel_hdcp_update_value(connector,
 					DRM_MODE_CONTENT_PROTECTION_ENABLED,
 					true);
@@ -2435,6 +2438,7 @@  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;
@@ -2461,7 +2465,7 @@  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->i915_wq, &hdcp->prop_work);
 		mutex_unlock(&hdcp->mutex);
 	}
 
@@ -2478,7 +2482,7 @@  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->i915_wq, &hdcp->prop_work);
 		}
 	}
 
@@ -2592,6 +2596,7 @@  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;
@@ -2599,5 +2604,5 @@  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->i915_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 b12900446828..7a50c392e8b1 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -211,7 +211,8 @@  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->i915_wq,
+				 &dev_priv->display.hotplug.reenable_work,
 				 msecs_to_jiffies(HPD_STORM_REENABLE_DELAY));
 	}
 }
@@ -338,7 +339,8 @@  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->i915_wq,
+				   &dev_priv->display.hotplug.hotplug_work, 0);
 	}
 }
 
@@ -445,7 +447,8 @@  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->i915_wq,
+				 &dev_priv->display.hotplug.hotplug_work,
 				 msecs_to_jiffies(HPD_RETRY_DELAY));
 	}
 }
@@ -576,7 +579,8 @@  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->i915_wq,
+				   &dev_priv->display.hotplug.hotplug_work, 0);
 }
 
 /**
@@ -686,7 +690,8 @@  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->i915_wq,
+		   &dev_priv->display.hotplug.poll_init_work);
 }
 
 /**
@@ -714,7 +719,8 @@  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->i915_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..e7af1935b4eb 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->i915_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 4f0b0cca03cc..63d1d879bd69 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->i915_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..ca2337e84159 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->i915_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->i915_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->i915_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..cf313296efd5 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->i915_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->i915_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..a4ead9ccd223 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->i915_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->i915_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 95e59ed6651d..6916c86acbc1 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c
@@ -375,7 +375,7 @@  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(&gt->i915->l3_parity.error_work);
+	queue_work(gt->i915->i915_wq, &gt->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..13f372143cc9 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->i915_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(&gt->requests.retire_work,
-			      round_jiffies_up_relative(HZ));
+	queue_delayed_work(gt->i915->i915_wq, &gt->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(&gt->requests.retire_work,
-			      round_jiffies_up_relative(HZ));
+	queue_delayed_work(gt->i915->i915_wq, &gt->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..26ccb7ed1f91 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->i915_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 80968e49e2c3..2dfbc43a71d0 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -72,13 +72,14 @@  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;
 
@@ -122,7 +123,7 @@  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],
@@ -132,12 +133,12 @@  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->i915_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->i915_wq, &rps->work);
 		} else {
 			rps->last_adj = 0;
 		}
@@ -972,7 +973,7 @@  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->i915_wq, &rps->work);
 
 	return 0;
 }
@@ -1024,7 +1025,8 @@  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->i915_wq,
+					   &slpc->boost_work);
 			}
 
 			return;
@@ -1040,7 +1042,7 @@  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->i915_wq, &rps->work);
 
 		WRITE_ONCE(rps->boosts, rps->boosts + 1); /* debug only */
 	}
@@ -1899,7 +1901,7 @@  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->i915_wq, &rps->work);
 }
 
 void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir)
@@ -1916,7 +1918,7 @@  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->i915_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..a7627ccf13f1 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(&gt->rps.num_waiters);
-	schedule_work(&gt->rps.work);
+	queue_work(gt->i915->i915_wq, &gt->rps.work);
 	flush_work(&gt->rps.work);
 }
 
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index fd198700272b..6ab5db790490 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -132,8 +132,14 @@  static int i915_workqueues_init(struct drm_i915_private *dev_priv)
 	if (dev_priv->display.hotplug.dp_wq == NULL)
 		goto out_free_wq;
 
+	dev_priv->i915_wq = alloc_workqueue("i915-generic", 0, 0);
+	if (dev_priv->i915_wq == NULL)
+		goto out_free_dp_wq;
+
 	return 0;
 
+out_free_dp_wq:
+	destroy_workqueue(dev_priv->i915_wq);
 out_free_wq:
 	destroy_workqueue(dev_priv->wq);
 out_err:
@@ -144,6 +150,7 @@  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->i915_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 14c5338c96a6..06cd956b03ab 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -259,6 +259,8 @@  struct drm_i915_private {
 	 */
 	struct workqueue_struct *wq;
 
+	struct workqueue_struct *i915_wq;
+
 	/* pm private clock gating functions */
 	const struct drm_i915_clock_gating_funcs *clock_gating_funcs;
 
@@ -930,5 +932,4 @@  IS_SUBPLATFORM(const struct drm_i915_private *i915,
 
 #define HAS_LMEMBAR_SMEM_STOLEN(i915) (!HAS_LMEM(i915) && \
 				       GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
-
 #endif
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 630a732aaecc..0f77c46cacab 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, &gt->watchdog.list))
-			schedule_work(&gt->watchdog.work);
+			queue_work(gt->i915->i915_wq, &gt->watchdog.work);
 	} else {
 		i915_request_put(rq);
 	}