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drm/i915: initialize the context idr unconditionally 

It doesn't hurt and it at least prevents us from OOPSing left and
right at quite a few places. This also allows us to simplify the code
a bit by folding the only line of context_open into the callsite.

We obviuosly also need to run the cleanup code unconditionally, too.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-06-19 16:52:30 +02:00
parent 55a6662837
commit df12c6d5ec
3 changed files with 1 additions and 17 deletions
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2
drivers/gpu/drm/i915/i915_dma.c
View File

@ -1759,7 +1759,7 @@ int i915_driver_open(struct drm_device *dev, struct drm_file *file)
spin_lock_init(&file_priv->mm.lock);
INIT_LIST_HEAD(&file_priv->mm.request_list);
i915_gem_context_open(dev, file);
idr_init(&file_priv->context_idr);
return 0;
}

1
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1383,7 +1383,6 @@ struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
/* i915_gem_context.c */
void i915_gem_context_init(struct drm_device *dev);
void i915_gem_context_fini(struct drm_device *dev);
void i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
int i915_switch_context(struct intel_ring_buffer *ring,
struct drm_file *file, int to_id);

15
drivers/gpu/drm/i915/i915_gem_context.c
View File

@ -287,17 +287,6 @@ void i915_gem_context_fini(struct drm_device *dev)
do_destroy(dev_priv->ring[RCS].default_context);
}
void i915_gem_context_open(struct drm_device *dev, struct drm_file *file)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_file_private *file_priv = file->driver_priv;
if (dev_priv->hw_contexts_disabled)
return;
idr_init(&file_priv->context_idr);
}
static int context_idr_cleanup(int id, void *p, void *data)
{
struct drm_file *file = (struct drm_file *)data;
@ -316,12 +305,8 @@ static int context_idr_cleanup(int id, void *p, void *data)
void i915_gem_context_close(struct drm_device *dev, struct drm_file *file)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_file_private *file_priv = file->driver_priv;
if (dev_priv->hw_contexts_disabled)
return;
mutex_lock(&dev->struct_mutex);
idr_for_each(&file_priv->context_idr, context_idr_cleanup, file);
idr_destroy(&file_priv->context_idr);