drm/i915: Wake device for emitting request during selftest

igt_mmap_offset_exhaustion() selftest was using live requests to make an
object busy, but we did not hold a runtime pm wakeref for submitting the
requests. Acquire it to avoid triggering "RPM wakelock ref not held
during HW access" warnings.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411234427.14841-3-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.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 163424748ee0e0972ec8772326e965364177938c..8f011c447e4103464253d1cd1490065703f01bfb 100644 (file)
--- a/drivers/gpu/drm/i915/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
@@ -545,7 +545,9 @@ static int igt_mmap_offset_exhaustion(void *arg)
                }
 
                mutex_lock(&i915->drm.struct_mutex);
+               intel_runtime_pm_get(i915);
                err = make_obj_busy(obj);
+               intel_runtime_pm_put(i915);
                mutex_unlock(&i915->drm.struct_mutex);
                if (err) {
                        pr_err("[loop %d] Failed to busy the object\n", loop);