We already call drm_irq_install/uninstall at the right time, which will set up the irq registers with the correct values (through the preinstall hooks).
For kms this is at best harmless, in the worst case we get an interrupt when we don't really expect it. v2: Fixup the logic, noticed by Paulo Zanoni. Signed-off-by: Daniel Vetter <[email protected]> --- drivers/gpu/drm/i915/i915_suspend.c | 56 ++++++++++++++++++++----------------- 1 file changed, 30 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 3d12147..ac6d412 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -818,20 +818,22 @@ int i915_save_state(struct drm_device *dev) i915_save_display(dev); - /* Interrupt state */ - if (HAS_PCH_SPLIT(dev)) { - dev_priv->saveDEIER = I915_READ(DEIER); - dev_priv->saveDEIMR = I915_READ(DEIMR); - dev_priv->saveGTIER = I915_READ(GTIER); - dev_priv->saveGTIMR = I915_READ(GTIMR); - dev_priv->saveFDI_RXA_IMR = I915_READ(_FDI_RXA_IMR); - dev_priv->saveFDI_RXB_IMR = I915_READ(_FDI_RXB_IMR); - dev_priv->saveMCHBAR_RENDER_STANDBY = - I915_READ(RSTDBYCTL); - dev_priv->savePCH_PORT_HOTPLUG = I915_READ(PCH_PORT_HOTPLUG); - } else { - dev_priv->saveIER = I915_READ(IER); - dev_priv->saveIMR = I915_READ(IMR); + if (!drm_core_check_feature(dev, DRIVER_MODESET)) { + /* Interrupt state */ + if (HAS_PCH_SPLIT(dev)) { + dev_priv->saveDEIER = I915_READ(DEIER); + dev_priv->saveDEIMR = I915_READ(DEIMR); + dev_priv->saveGTIER = I915_READ(GTIER); + dev_priv->saveGTIMR = I915_READ(GTIMR); + dev_priv->saveFDI_RXA_IMR = I915_READ(_FDI_RXA_IMR); + dev_priv->saveFDI_RXB_IMR = I915_READ(_FDI_RXB_IMR); + dev_priv->saveMCHBAR_RENDER_STANDBY = + I915_READ(RSTDBYCTL); + dev_priv->savePCH_PORT_HOTPLUG = I915_READ(PCH_PORT_HOTPLUG); + } else { + dev_priv->saveIER = I915_READ(IER); + dev_priv->saveIMR = I915_READ(IMR); + } } intel_disable_gt_powersave(dev); @@ -869,18 +871,20 @@ int i915_restore_state(struct drm_device *dev) i915_restore_display(dev); - /* Interrupt state */ - if (HAS_PCH_SPLIT(dev)) { - I915_WRITE(DEIER, dev_priv->saveDEIER); - I915_WRITE(DEIMR, dev_priv->saveDEIMR); - I915_WRITE(GTIER, dev_priv->saveGTIER); - I915_WRITE(GTIMR, dev_priv->saveGTIMR); - I915_WRITE(_FDI_RXA_IMR, dev_priv->saveFDI_RXA_IMR); - I915_WRITE(_FDI_RXB_IMR, dev_priv->saveFDI_RXB_IMR); - I915_WRITE(PCH_PORT_HOTPLUG, dev_priv->savePCH_PORT_HOTPLUG); - } else { - I915_WRITE(IER, dev_priv->saveIER); - I915_WRITE(IMR, dev_priv->saveIMR); + if (!drm_core_check_feature(dev, DRIVER_MODESET)) { + /* Interrupt state */ + if (HAS_PCH_SPLIT(dev)) { + I915_WRITE(DEIER, dev_priv->saveDEIER); + I915_WRITE(DEIMR, dev_priv->saveDEIMR); + I915_WRITE(GTIER, dev_priv->saveGTIER); + I915_WRITE(GTIMR, dev_priv->saveGTIMR); + I915_WRITE(_FDI_RXA_IMR, dev_priv->saveFDI_RXA_IMR); + I915_WRITE(_FDI_RXB_IMR, dev_priv->saveFDI_RXB_IMR); + I915_WRITE(PCH_PORT_HOTPLUG, dev_priv->savePCH_PORT_HOTPLUG); + } else { + I915_WRITE(IER, dev_priv->saveIER); + I915_WRITE(IMR, dev_priv->saveIMR); + } } /* Cache mode state */ -- 1.7.11.7 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
