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drm/i915: add runtime PM get/put call in i915_execlists 

Otherwise we will get WARNs when we read context status registers and
the machine is suspended.

Testcase: igt/pm_rpm/debugfs-read
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Michel Thierry 2014-10-16 16:13:38 +01:00 committed by Daniel Vetter
parent 142d2eca35
commit fc0412ec0f
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_debugfs.c
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@ -1848,6 +1848,8 @@ static int i915_execlists(struct seq_file *m, void *data)
if (ret)
return ret;
intel_runtime_pm_get(dev_priv);
for_each_ring(ring, dev_priv, ring_id) {
struct intel_ctx_submit_request *head_req = NULL;
int count = 0;
@ -1899,6 +1901,7 @@ static int i915_execlists(struct seq_file *m, void *data)
seq_putc(m, '\n');
}
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;