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authorDave Airlie <airlied@redhat.com>2023-08-25 05:55:49 +0300
committerDave Airlie <airlied@redhat.com>2023-08-25 05:55:55 +0300
commit3698a75f5a98d0a6599e2878ab25d30a82dd836a (patch)
tree153cf6b942da7b01f7f3d3d35e1546893d407514 /drivers/gpu/drm
parentbc609f4867f6a14db0efda55a7adef4dca16762e (diff)
parentcfd48ad8c4a9137b0fde7f0ecf463d44b01875dc (diff)
downloadlinux-3698a75f5a98d0a6599e2878ab25d30a82dd836a.tar.xz
Merge tag 'drm-intel-next-fixes-2023-08-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Fix TLB invalidation (Alan) - Fix Display HPD polling (Imre) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZOdOP31OE/Cf1ojo@intel.com
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/drm_probe_helper.c68
-rw-r--r--drivers/gpu/drm/i915/display/intel_hotplug.c4
-rw-r--r--drivers/gpu/drm/i915/i915_vma.c2
3 files changed, 49 insertions, 25 deletions
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 2fb9bf901a2c..3f479483d7d8 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -262,6 +262,26 @@ static bool drm_kms_helper_enable_hpd(struct drm_device *dev)
}
#define DRM_OUTPUT_POLL_PERIOD (10*HZ)
+static void reschedule_output_poll_work(struct drm_device *dev)
+{
+ unsigned long delay = DRM_OUTPUT_POLL_PERIOD;
+
+ if (dev->mode_config.delayed_event)
+ /*
+ * FIXME:
+ *
+ * Use short (1s) delay to handle the initial delayed event.
+ * This delay should not be needed, but Optimus/nouveau will
+ * fail in a mysterious way if the delayed event is handled as
+ * soon as possible like it is done in
+ * drm_helper_probe_single_connector_modes() in case the poll
+ * was enabled before.
+ */
+ delay = HZ;
+
+ schedule_delayed_work(&dev->mode_config.output_poll_work, delay);
+}
+
/**
* drm_kms_helper_poll_enable - re-enable output polling.
* @dev: drm_device
@@ -279,37 +299,41 @@ static bool drm_kms_helper_enable_hpd(struct drm_device *dev)
*/
void drm_kms_helper_poll_enable(struct drm_device *dev)
{
- bool poll = false;
- unsigned long delay = DRM_OUTPUT_POLL_PERIOD;
-
if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll ||
dev->mode_config.poll_running)
return;
- poll = drm_kms_helper_enable_hpd(dev);
-
- if (dev->mode_config.delayed_event) {
- /*
- * FIXME:
- *
- * Use short (1s) delay to handle the initial delayed event.
- * This delay should not be needed, but Optimus/nouveau will
- * fail in a mysterious way if the delayed event is handled as
- * soon as possible like it is done in
- * drm_helper_probe_single_connector_modes() in case the poll
- * was enabled before.
- */
- poll = true;
- delay = HZ;
- }
-
- if (poll)
- schedule_delayed_work(&dev->mode_config.output_poll_work, delay);
+ if (drm_kms_helper_enable_hpd(dev) ||
+ dev->mode_config.delayed_event)
+ reschedule_output_poll_work(dev);
dev->mode_config.poll_running = true;
}
EXPORT_SYMBOL(drm_kms_helper_poll_enable);
+/**
+ * drm_kms_helper_poll_reschedule - reschedule the output polling work
+ * @dev: drm_device
+ *
+ * This function reschedules the output polling work, after polling for a
+ * connector has been enabled.
+ *
+ * Drivers must call this helper after enabling polling for a connector by
+ * setting %DRM_CONNECTOR_POLL_CONNECT / %DRM_CONNECTOR_POLL_DISCONNECT flags
+ * in drm_connector::polled. Note that after disabling polling by clearing these
+ * flags for a connector will stop the output polling work automatically if
+ * the polling is disabled for all other connectors as well.
+ *
+ * The function can be called only after polling has been enabled by calling
+ * drm_kms_helper_poll_init() / drm_kms_helper_poll_enable().
+ */
+void drm_kms_helper_poll_reschedule(struct drm_device *dev)
+{
+ if (dev->mode_config.poll_running)
+ reschedule_output_poll_work(dev);
+}
+EXPORT_SYMBOL(drm_kms_helper_poll_reschedule);
+
static enum drm_connector_status
drm_helper_probe_detect_ctx(struct drm_connector *connector, bool force)
{
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 0ff5ed46ae1e..69a83dcc1996 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -211,7 +211,7 @@ 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);
+ drm_kms_helper_poll_reschedule(&dev_priv->drm);
mod_delayed_work(dev_priv->unordered_wq,
&dev_priv->display.hotplug.reenable_work,
msecs_to_jiffies(HPD_STORM_REENABLE_DELAY));
@@ -661,7 +661,7 @@ static void i915_hpd_poll_init_work(struct work_struct *work)
drm_connector_list_iter_end(&conn_iter);
if (enabled)
- drm_kms_helper_poll_enable(&dev_priv->drm);
+ drm_kms_helper_poll_reschedule(&dev_priv->drm);
mutex_unlock(&dev_priv->drm.mode_config.mutex);
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index e52089564d79..6f180ee13853 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -1356,7 +1356,7 @@ void vma_invalidate_tlb(struct i915_address_space *vm, u32 *tlb)
*/
for_each_gt(gt, vm->i915, id)
WRITE_ONCE(tlb[id],
- intel_gt_next_invalidate_tlb_full(vm->gt));
+ intel_gt_next_invalidate_tlb_full(gt));
}
static void __vma_put_pages(struct i915_vma *vma, unsigned int count)