drm/i915/selftests: Take rpm wakeref around partial tiling tests

Since the partial tiling tests are poking into the GGTT to watch the
fence registers in operation, it itself needs the device rpm wakeref in
order for the GGTT to remain accessible.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107115653.10716-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>

diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
index 1b8774a..f32aa6b 100644 (file)
--- a/drivers/gpu/drm/i915/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
@@ -317,6 +317,7 @@ static int igt_partial_tiling(void *arg)
        }
 
        mutex_lock(&i915->drm.struct_mutex);
+       intel_runtime_pm_get(i915);
 
        if (1) {
                IGT_TIMEOUT(end);
@@ -418,6 +419,7 @@ next_tiling: ;
        }
 
 out_unlock:
+       intel_runtime_pm_put(i915);
        mutex_unlock(&i915->drm.struct_mutex);
        i915_gem_object_unpin_pages(obj);
 out: