diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-11-18 18:32:36 -0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-21 09:11:27 +0100 |
| commit | 3458122e27fd381411e0cd4c45c28816fcffbe20 (patch) | |
| tree | 067301e990635be100fdfd5680595f88e2c99904 /drivers/gpu/drm | |
| parent | 4ea67bc700c0c085e0428b6cb75071ec8c858f7b (diff) | |
drm/i915: Hold pc8 lock around toggling pc8.gpu_idle
We need to hold the pc8 lock around toggling the value of gpu_idle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3b7f1c4eb48e..54e7fa6d9628 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6761,18 +6761,22 @@ done: static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv) { + mutex_lock(&dev_priv->pc8.lock); if (!dev_priv->pc8.gpu_idle) { dev_priv->pc8.gpu_idle = true; - hsw_enable_package_c8(dev_priv); + __hsw_enable_package_c8(dev_priv); } + mutex_unlock(&dev_priv->pc8.lock); } static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv) { + mutex_lock(&dev_priv->pc8.lock); if (dev_priv->pc8.gpu_idle) { dev_priv->pc8.gpu_idle = false; - hsw_disable_package_c8(dev_priv); + __hsw_disable_package_c8(dev_priv); } + mutex_unlock(&dev_priv->pc8.lock); } #define for_each_power_domain(domain, mask) \ |