From: Jesse Barnes Date: Tue, 23 Jun 2009 01:05:12 +0000 (-0700) Subject: drm/i915: correct suspend/resume ordering X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9e06dd39f2b6d7e35981e0d7aded618686b32ccb;p=deliverable%2Flinux.git drm/i915: correct suspend/resume ordering We need to save register state *after* idling GEM, clearing the ring, and uninstalling the IRQ handler, or we might end up saving bogus fence regs, for one. Our restore ordering should already be correct, since we do GEM, ring and IRQ init after restoring the last register state, which prevents us from clobbering things. I put this together to potentially address a bug, but I haven't heard back if it fixes it yet. However I think it stands on its own, so I'm sending it in. Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 98560e1e899a..e3cb4025e323 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -67,8 +67,6 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) pci_save_state(dev->pdev); - i915_save_state(dev); - /* If KMS is active, we do the leavevt stuff here */ if (drm_core_check_feature(dev, DRIVER_MODESET)) { if (i915_gem_idle(dev)) @@ -77,6 +75,8 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) drm_irq_uninstall(dev); } + i915_save_state(dev); + intel_opregion_free(dev, 1); if (state.event == PM_EVENT_SUSPEND) {