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drm/i915/selftests: Mark up rpm wakerefs

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Track the temporary wakerefs used within the selftests so that leaks are
clear.

v2: Add a couple of coarse annotations for mock selftests as we now
loudly warn about the errors.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190114142129.24398-14-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-01-14 14:21:22 +00:00
parent 2cb2cb5ff4
commit c9d08cc3e3
12 changed files with 138 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/gpu/drm/i915/selftests/intel_hangcheck.c
View File

@@ -388,12 +388,13 @@ static int igt_global_reset(void *arg)
static int igt_wedged_reset(void *arg)
{
struct drm_i915_private *i915 = arg;
intel_wakeref_t wakeref;
/* Check that we can recover a wedged device with a GPU reset */
igt_global_reset_lock(i915);
mutex_lock(&i915->drm.struct_mutex);
intel_runtime_pm_get(i915);
wakeref = intel_runtime_pm_get(i915);
i915_gem_set_wedged(i915);
GEM_BUG_ON(!i915_terminally_wedged(&i915->gpu_error));
@@ -402,7 +403,7 @@ static int igt_wedged_reset(void *arg)
i915_reset(i915, ALL_ENGINES, NULL);
GEM_BUG_ON(test_bit(I915_RESET_HANDOFF, &i915->gpu_error.flags));
intel_runtime_pm_put_unchecked(i915);
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
igt_global_reset_unlock(i915);
@@ -1600,6 +1601,7 @@ static int igt_atomic_reset(void *arg)
{ }
};
struct drm_i915_private *i915 = arg;
intel_wakeref_t wakeref;
int err = 0;
/* Check that the resets are usable from atomic context */
@@ -1609,7 +1611,7 @@ static int igt_atomic_reset(void *arg)
igt_global_reset_lock(i915);
mutex_lock(&i915->drm.struct_mutex);
intel_runtime_pm_get(i915);
wakeref = intel_runtime_pm_get(i915);
/* Flush any requests before we get started and check basics */
force_reset(i915);
@@ -1636,7 +1638,7 @@ out:
force_reset(i915);
unlock:
intel_runtime_pm_put_unchecked(i915);
intel_runtime_pm_put(i915, wakeref);
mutex_unlock(&i915->drm.struct_mutex);
igt_global_reset_unlock(i915);
@@ -1660,6 +1662,7 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
SUBTEST(igt_handle_error),
SUBTEST(igt_atomic_reset),
};
intel_wakeref_t wakeref;
bool saved_hangcheck;
int err;
@@ -1669,7 +1672,7 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
if (i915_terminally_wedged(&i915->gpu_error))
return -EIO; /* we're long past hope of a successful reset */
intel_runtime_pm_get(i915);
wakeref = intel_runtime_pm_get(i915);
saved_hangcheck = fetch_and_zero(&i915_modparams.enable_hangcheck);
err = i915_subtests(tests, i915);
@@ -1679,7 +1682,7 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
mutex_unlock(&i915->drm.struct_mutex);
i915_modparams.enable_hangcheck = saved_hangcheck;
intel_runtime_pm_put_unchecked(i915);
intel_runtime_pm_put(i915, wakeref);
return err;
}