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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-01-02 18:12:31 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-01-03 14:42:33 +0300 |
| commit | 65c475c6dd607226159a774d7c3d7ff4b6e00255 (patch) | |
| tree | 7c92a67f90f2f21899763f4b0f0fbce16910c19c /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | f3c9d4075771b4fbaa0d793d2c875c61e2e1cb12 (diff) | |
| download | linux-65c475c6dd607226159a774d7c3d7ff4b6e00255.tar.xz | |
drm/i915: Hold rpm wakeref for modifying the global seqno
To modify the global seqno may require rewriting a few registers, which
requires us to hold the rpm wakeref. We must therefore take it around
the call to i915_gem_set_global_seqno() in debugfs, on behalf of the
user.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-15-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index d81cb2513069..2bb63073d73f 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -988,7 +988,10 @@ i915_next_seqno_set(void *data, u64 val) if (ret) return ret; + intel_runtime_pm_get(dev_priv); ret = i915_gem_set_global_seqno(dev, val); + intel_runtime_pm_put(dev_priv); + mutex_unlock(&dev->struct_mutex); return ret; |