Suspend resume is broken if we try to enable/disable dc9 on cases with disabled displays. v2: Make checkpatch happy: - braces {} are not necessary for single statement blocks v3: Also move hsw/bdw PC8 sequences since they are related to display PM anyways. (Ville) v4: Rebase after a long time, plus Move functions to the new intel_display_power so we can stop exporting platform specific functions as pointed by Jani. v5: Remove unnecessary braces. Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: José Roberto de Souza <jose.souza@xxxxxxxxx> Cc: Jani Nikula <jani.nikula@xxxxxxxxx> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> --- .../drm/i915/display/intel_display_power.c | 67 +++++++++++++++++++ .../drm/i915/display/intel_display_power.h | 17 ++--- drivers/gpu/drm/i915/i915_drv.c | 58 ++++------------ 3 files changed, 84 insertions(+), 58 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 93a148684c53..530b119a3a3b 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -5189,3 +5189,70 @@ static void intel_power_domains_verify_state(struct drm_i915_private *i915) } #endif + +void intel_display_power_suspend_late(struct drm_i915_private *i915) +{ + if (!HAS_DISPLAY(i915)) + return; + + if (INTEL_GEN(i915) >= 11 || IS_GEN9_LP(i915)) + bxt_enable_dc9(i915); + else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) + hsw_enable_pc8(i915); +} + +void intel_display_power_resume_early(struct drm_i915_private *i915) +{ + if (!HAS_DISPLAY(i915)) + return; + + if (INTEL_GEN(i915) >= 11 || IS_GEN9_LP(i915)) { + gen9_sanitize_dc_state(i915); + bxt_disable_dc9(i915); + } else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) { + hsw_disable_pc8(i915); + } +} + +void intel_display_power_suspend(struct drm_i915_private *i915) +{ + if (!HAS_DISPLAY(i915)) + return; + + if (INTEL_GEN(i915) >= 11) { + icl_display_core_uninit(i915); + bxt_enable_dc9(i915); + } else if (IS_GEN9_LP(i915)) { + bxt_display_core_uninit(i915); + bxt_enable_dc9(i915); + } else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) { + hsw_enable_pc8(i915); + } +} + +void intel_display_power_resume(struct drm_i915_private *i915) +{ + if (!HAS_DISPLAY(i915)) + return; + + if (INTEL_GEN(i915) >= 11) { + bxt_disable_dc9(i915); + icl_display_core_init(i915, true); + if (i915->csr.dmc_payload) { + if (i915->csr.allowed_dc_mask & + DC_STATE_EN_UPTO_DC6) + skl_enable_dc6(i915); + else if (i915->csr.allowed_dc_mask & + DC_STATE_EN_UPTO_DC5) + gen9_enable_dc5(i915); + } + } else if (IS_GEN9_LP(i915)) { + bxt_disable_dc9(i915); + bxt_display_core_init(i915, true); + if (i915->csr.dmc_payload && + (i915->csr.allowed_dc_mask & DC_STATE_EN_UPTO_DC5)) + gen9_enable_dc5(i915); + } else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) { + hsw_disable_pc8(i915); + } +} diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h index e4d2c1ba24b0..97f2562fc5d3 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.h +++ b/drivers/gpu/drm/i915/display/intel_display_power.h @@ -232,27 +232,20 @@ struct i915_power_domains { for_each_power_well_reverse(__dev_priv, __power_well) \ for_each_if((__power_well)->desc->domains & (__domain_mask)) -void skl_enable_dc6(struct drm_i915_private *dev_priv); -void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv); -void bxt_enable_dc9(struct drm_i915_private *dev_priv); -void bxt_disable_dc9(struct drm_i915_private *dev_priv); -void gen9_enable_dc5(struct drm_i915_private *dev_priv); - int intel_power_domains_init(struct drm_i915_private *dev_priv); void intel_power_domains_cleanup(struct drm_i915_private *dev_priv); void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume); void intel_power_domains_driver_remove(struct drm_i915_private *dev_priv); -void icl_display_core_init(struct drm_i915_private *dev_priv, bool resume); -void icl_display_core_uninit(struct drm_i915_private *dev_priv); void intel_power_domains_enable(struct drm_i915_private *dev_priv); void intel_power_domains_disable(struct drm_i915_private *dev_priv); void intel_power_domains_suspend(struct drm_i915_private *dev_priv, enum i915_drm_suspend_mode); void intel_power_domains_resume(struct drm_i915_private *dev_priv); -void hsw_enable_pc8(struct drm_i915_private *dev_priv); -void hsw_disable_pc8(struct drm_i915_private *dev_priv); -void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume); -void bxt_display_core_uninit(struct drm_i915_private *dev_priv); + +void intel_display_power_suspend_late(struct drm_i915_private *i915); +void intel_display_power_resume_early(struct drm_i915_private *i915); +void intel_display_power_suspend(struct drm_i915_private *i915); +void intel_display_power_resume(struct drm_i915_private *i915); const char * intel_display_power_domain_str(struct drm_i915_private *i915, diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 7c209743e478..35b1883b55a4 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -2166,7 +2166,7 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) struct drm_i915_private *dev_priv = to_i915(dev); struct pci_dev *pdev = dev_priv->drm.pdev; struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; - int ret; + int ret = 0; disable_rpm_wakeref_asserts(rpm); @@ -2177,12 +2177,9 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) intel_power_domains_suspend(dev_priv, get_suspend_mode(dev_priv, hibernation)); - ret = 0; - if (INTEL_GEN(dev_priv) >= 11 || IS_GEN9_LP(dev_priv)) - bxt_enable_dc9(dev_priv); - else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) - hsw_enable_pc8(dev_priv); - else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + intel_display_power_suspend_late(dev_priv); + + if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) ret = vlv_suspend_complete(dev_priv); if (ret) { @@ -2372,12 +2369,7 @@ static int i915_drm_resume_early(struct drm_device *dev) intel_gt_check_and_clear_faults(&dev_priv->gt); - if (INTEL_GEN(dev_priv) >= 11 || IS_GEN9_LP(dev_priv)) { - gen9_sanitize_dc_state(dev_priv); - bxt_disable_dc9(dev_priv); - } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { - hsw_disable_pc8(dev_priv); - } + intel_display_power_resume_early(dev_priv); intel_sanitize_gt_powersave(dev_priv); @@ -2921,7 +2913,7 @@ static int intel_runtime_suspend(struct device *kdev) struct drm_device *dev = pci_get_drvdata(pdev); struct drm_i915_private *dev_priv = to_i915(dev); struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; - int ret; + int ret = 0; if (WARN_ON_ONCE(!(dev_priv->gt_pm.rc6.enabled && HAS_RC6(dev_priv)))) return -ENODEV; @@ -2945,18 +2937,10 @@ static int intel_runtime_suspend(struct device *kdev) intel_uncore_suspend(&dev_priv->uncore); - ret = 0; - if (INTEL_GEN(dev_priv) >= 11) { - icl_display_core_uninit(dev_priv); - bxt_enable_dc9(dev_priv); - } else if (IS_GEN9_LP(dev_priv)) { - bxt_display_core_uninit(dev_priv); - bxt_enable_dc9(dev_priv); - } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { - hsw_enable_pc8(dev_priv); - } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { + intel_display_power_suspend(dev_priv); + + if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) ret = vlv_suspend_complete(dev_priv); - } if (ret) { DRM_ERROR("Runtime suspend failed, disabling it (%d)\n", ret); @@ -3035,28 +3019,10 @@ static int intel_runtime_resume(struct device *kdev) if (intel_uncore_unclaimed_mmio(&dev_priv->uncore)) DRM_DEBUG_DRIVER("Unclaimed access during suspend, bios?\n"); - if (INTEL_GEN(dev_priv) >= 11) { - bxt_disable_dc9(dev_priv); - icl_display_core_init(dev_priv, true); - if (dev_priv->csr.dmc_payload) { - if (dev_priv->csr.allowed_dc_mask & - DC_STATE_EN_UPTO_DC6) - skl_enable_dc6(dev_priv); - else if (dev_priv->csr.allowed_dc_mask & - DC_STATE_EN_UPTO_DC5) - gen9_enable_dc5(dev_priv); - } - } else if (IS_GEN9_LP(dev_priv)) { - bxt_disable_dc9(dev_priv); - bxt_display_core_init(dev_priv, true); - if (dev_priv->csr.dmc_payload && - (dev_priv->csr.allowed_dc_mask & DC_STATE_EN_UPTO_DC5)) - gen9_enable_dc5(dev_priv); - } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { - hsw_disable_pc8(dev_priv); - } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { + intel_display_power_resume(dev_priv); + + if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) ret = vlv_resume_prepare(dev_priv, true); - } intel_uncore_runtime_resume(&dev_priv->uncore); -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx