[Intel-gfx] [PATCH 1/5] drm/i915: Move GEM sanitize from resume_early to resume

[Chris Wilson]

This should be a no-op in terms of our control flow, we move the
sanitization (GPU reset) from the bottom of the early resume phase to
the top of the next. However, following hibernation debug, the power
code skips the early resume phase, but as we are about to completely
restore the GTT mappings, we first need to stop the GPU using them i.e.
perform a GPU reset (i915_gem_sanitize()).

Testcase: igt/gem_exec_suspend/basic-S4-devices
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Imre Deak <imre.deak at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 6e6413c1d068..7423d78f38f4 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1698,6 +1698,8 @@ static int i915_drm_resume(struct drm_device *dev)
 	disable_rpm_wakeref_asserts(dev_priv);
 	intel_sanitize_gt_powersave(dev_priv);
 
+	i915_gem_sanitize(dev_priv);
+
 	ret = i915_ggtt_enable_hw(dev_priv);
 	if (ret)
 		DRM_ERROR("failed to re-enable GGTT\n");
@@ -1839,8 +1841,6 @@ static int i915_drm_resume_early(struct drm_device *dev)
 	else
 		intel_display_set_init_power(dev_priv, true);
 
-	i915_gem_sanitize(dev_priv);
-
 	enable_rpm_wakeref_asserts(dev_priv);
 
 out:
-- 
2.17.1