diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2025-09-19 21:50:11 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2025-09-22 19:34:45 +0300 |
| commit | cead397a976dde554f5bfba48a06f49c29bc3982 (patch) | |
| tree | 972fc849cdd2611324c545e458cc11fcc80ddfdf /drivers/gpu | |
| parent | bc412f9a993b49b1af22cc4c2f834f4350b06957 (diff) | |
drm/i915/pm: Hoist pci_save_state()+pci_set_power_state() to the end of pm _late() hook
drivers/pci does the pci_save_state()+pci_set_power_state() from
the _noirq() pm hooks. Move our manual calls (needed for the
hibernate vs. D3 workaround with buggy BIOSes) towards that same
point. We currently have no _noirq() hooks, so end of _late()
hooks is the best we can do right now.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250919185015.14561-3-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_driver.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c index 76bda4376fe0..66f2acacd516 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -1053,7 +1053,6 @@ static int i915_drm_suspend(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); struct intel_display *display = dev_priv->display; - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); pci_power_t opregion_target_state; disable_rpm_wakeref_asserts(&dev_priv->runtime_pm); @@ -1067,8 +1066,6 @@ static int i915_drm_suspend(struct drm_device *dev) intel_display_driver_disable_user_access(display); } - pci_save_state(pdev); - intel_display_driver_suspend(display); intel_irq_suspend(dev_priv); @@ -1125,10 +1122,16 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) drm_err(&dev_priv->drm, "Suspend complete failed: %d\n", ret); intel_display_power_resume_early(display); - goto out; + goto fail; } + enable_rpm_wakeref_asserts(rpm); + + if (!dev_priv->uncore.user_forcewake_count) + intel_runtime_pm_driver_release(rpm); + pci_disable_device(pdev); + /* * During hibernation on some platforms the BIOS may try to access * the device even though it's already in D3 and hang the machine. So @@ -1140,11 +1143,17 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) * Lenovo Thinkpad X301, X61s, X60, T60, X41 * Fujitsu FSC S7110 * Acer Aspire 1830T + * + * pci_save_state() prevents drivers/pci from + * automagically putting the device into D3. */ + pci_save_state(pdev); if (!(hibernation && GRAPHICS_VER(dev_priv) < 6)) pci_set_power_state(pdev, PCI_D3hot); -out: + return 0; + +fail: enable_rpm_wakeref_asserts(rpm); if (!dev_priv->uncore.user_forcewake_count) intel_runtime_pm_driver_release(rpm); |