From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
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@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 2 ++
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/i915_gem.c | 10 ++++++++++
3 files changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 70590b0..23f8217 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -920,6 +920,8 @@ static int i915_runtime_suspend(struct device *device)
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);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fca2eb6..5e036be 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2013,6 +2013,7 @@ void i915_gem_object_unpin(struct drm_i915_gem_object *obj);
int __must_check i915_vma_unbind(struct i915_vma *vma);
int __must_check i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj);
int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
+void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
void i915_gem_lastclose(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 66f8133..0d7c061 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1465,6 +1465,16 @@ out:
return ret;
}
+void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv)
+{
+ struct i915_vma *vma;
+
+ list_for_each_entry(vma, &dev_priv->gtt.base.active_list, mm_list)
+ i915_gem_release_mmap(vma->obj);
+ list_for_each_entry(vma, &dev_priv->gtt.base.inactive_list, mm_list)
+ i915_gem_release_mmap(vma->obj);
+}
+
/**
* i915_gem_release_mmap - remove physical page mappings
* @obj: obj in question
--
1.8.3.1
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