drm/i915: release the GTT mmaps when going into D3
So we'll get a fault when someone tries to access the mmap, then we'll
wake up from D3.
v2: - Rebase
v3: - Use gtt active/inactive
Testcase: igt/pm_pc8/gem-mmap-gtt
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
[danvet: Add comment + WARN as discussed with Paulo on irc.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index df634a4..aea909b 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -917,6 +917,8 @@
DRM_DEBUG_KMS("Suspending device\n");
+ i915_gem_release_all_mmaps(dev_priv);
+
del_timer_sync(&dev_priv->gpu_error.hangcheck_timer);
dev_priv->pm.suspended = true;
intel_opregion_notify_adapter(dev, PCI_D3cold);