- Fix power consumption at s2idle on DG2 (Anshuman)

- Fix documentation build warning (Jani)
 - Fix Display HPD (Imre)
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Merge tag 'drm-intel-fixes-2023-08-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix power consumption at s2idle on DG2 (Anshuman)
- Fix documentation build warning (Jani)
- Fix Display HPD (Imre)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZOdPRFSJpo0ErPX/@intel.com
This commit is contained in:
Dave Airlie 2023-08-25 07:35:23 +10:00
commit 59fe2029b9
5 changed files with 69 additions and 39 deletions

View File

@ -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)
{

View File

@ -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));
@ -649,7 +649,7 @@ 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);

View File

@ -26,6 +26,7 @@
* The kernel driver is only responsible for loading the HuC firmware and
* triggering its security authentication. This is done differently depending
* on the platform:
*
* - older platforms (from Gen9 to most Gen12s): the load is performed via DMA
* and the authentication via GuC
* - DG2: load and authentication are both performed via GSC.
@ -33,6 +34,7 @@
* not-DG2 older platforms), while the authentication is done in 2-steps,
* a first auth for clear-media workloads via GuC and a second one for all
* workloads via GSC.
*
* On platforms where the GuC does the authentication, to correctly do so the
* HuC binary must be loaded before the GuC one.
* Loading the HuC is optional; however, not using the HuC might negatively

View File

@ -443,7 +443,6 @@ static int i915_pcode_init(struct drm_i915_private *i915)
static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
{
struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
struct pci_dev *root_pdev;
int ret;
if (i915_inject_probe_failure(dev_priv))
@ -557,15 +556,6 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
intel_bw_init_hw(dev_priv);
/*
* FIXME: Temporary hammer to avoid freezing the machine on our DGFX
* This should be totally removed when we handle the pci states properly
* on runtime PM and on s2idle cases.
*/
root_pdev = pcie_find_root_port(pdev);
if (root_pdev)
pci_d3cold_disable(root_pdev);
return 0;
err_opregion:
@ -591,7 +581,6 @@ err_perf:
static void i915_driver_hw_remove(struct drm_i915_private *dev_priv)
{
struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
struct pci_dev *root_pdev;
i915_perf_fini(dev_priv);
@ -599,10 +588,6 @@ static void i915_driver_hw_remove(struct drm_i915_private *dev_priv)
if (pdev->msi_enabled)
pci_disable_msi(pdev);
root_pdev = pcie_find_root_port(pdev);
if (root_pdev)
pci_d3cold_enable(root_pdev);
}
/**
@ -1517,6 +1502,8 @@ static int intel_runtime_suspend(struct device *kdev)
{
struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
struct pci_dev *root_pdev;
struct intel_gt *gt;
int ret, i;
@ -1568,6 +1555,15 @@ static int intel_runtime_suspend(struct device *kdev)
drm_err(&dev_priv->drm,
"Unclaimed access detected prior to suspending\n");
/*
* FIXME: Temporary hammer to avoid freezing the machine on our DGFX
* This should be totally removed when we handle the pci states properly
* on runtime PM.
*/
root_pdev = pcie_find_root_port(pdev);
if (root_pdev)
pci_d3cold_disable(root_pdev);
rpm->suspended = true;
/*
@ -1606,6 +1602,8 @@ static int intel_runtime_resume(struct device *kdev)
{
struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
struct pci_dev *root_pdev;
struct intel_gt *gt;
int ret, i;
@ -1619,6 +1617,11 @@ static int intel_runtime_resume(struct device *kdev)
intel_opregion_notify_adapter(dev_priv, PCI_D0);
rpm->suspended = false;
root_pdev = pcie_find_root_port(pdev);
if (root_pdev)
pci_d3cold_enable(root_pdev);
if (intel_uncore_unclaimed_mmio(&dev_priv->uncore))
drm_dbg(&dev_priv->drm,
"Unclaimed access during suspend, bios?\n");

View File

@ -25,6 +25,7 @@ void drm_kms_helper_connector_hotplug_event(struct drm_connector *connector);
void drm_kms_helper_poll_disable(struct drm_device *dev);
void drm_kms_helper_poll_enable(struct drm_device *dev);
void drm_kms_helper_poll_reschedule(struct drm_device *dev);
bool drm_kms_helper_is_poll_worker(void);
enum drm_mode_status drm_crtc_helper_mode_valid_fixed(struct drm_crtc *crtc,