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| author | Imre Deak <imre.deak@intel.com> | 2015-11-04 21:25:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-25 11:58:51 -0800 |
| commit | 3676114f064e512ae87ff76a84799e047a794fbc (patch) | |
| tree | 8e2ea95eae6140d05bea40368d3e222c718386bf /drivers | |
| parent | d4577eee4627ac65ed5e7609952f0e0db5aecd1b (diff) | |
| download | lwn-3676114f064e512ae87ff76a84799e047a794fbc.tar.gz lwn-3676114f064e512ae87ff76a84799e047a794fbc.zip | |
drm/i915: get runtime PM reference around GEM set_caching IOCTL
commit fd0fe6acf1dd88aabfbf383f7e4c16315387a7b7 upstream.
After Damien's D3 fix I started to get runtime suspend residency for the
first time and that revealed a breakage on the set_caching IOCTL path
that accesses the HW but doesn't take an RPM ref. Fix this up.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446665132-22491-1-git-send-email-imre.deak@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index de5ab4876a89..951ecd52226c 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3655,6 +3655,7 @@ unlock: int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, struct drm_file *file) { + struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_caching *args = data; struct drm_i915_gem_object *obj; enum i915_cache_level level; @@ -3674,9 +3675,11 @@ int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, return -EINVAL; } + intel_runtime_pm_get(dev_priv); + ret = i915_mutex_lock_interruptible(dev); if (ret) - return ret; + goto rpm_put; obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); if (&obj->base == NULL) { @@ -3689,6 +3692,9 @@ int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data, drm_gem_object_unreference(&obj->base); unlock: mutex_unlock(&dev->struct_mutex); +rpm_put: + intel_runtime_pm_put(dev_priv); + return ret; } |