From: Chris Wilson <ch...@chris-wilson.co.uk> Pineview requires this. But this changes the debug API...
References: https://bugs.freedesktop.org/show_bug.cgi?id=82280 Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com> --- drivers/gpu/drm/i915/i915_debugfs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e60d5c2..465a17b 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2711,10 +2711,15 @@ static int i915_pipe_crc_open(struct inode *inode, struct file *filep) struct pipe_crc_info *info = inode->i_private; struct drm_i915_private *dev_priv = info->dev->dev_private; struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe]; + int ret; if (info->pipe >= INTEL_INFO(info->dev)->num_pipes) return -ENODEV; + ret = drm_vblank_get(dev_priv->dev, info->pipe); + if (ret) + return ret; + spin_lock_irq(&pipe_crc->lock); if (pipe_crc->opened) { @@ -2740,6 +2745,8 @@ static int i915_pipe_crc_release(struct inode *inode, struct file *filep) pipe_crc->opened = false; spin_unlock_irq(&pipe_crc->lock); + drm_vblank_put(dev_priv->dev, info->pipe); + return 0; } -- 1.9.3 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
