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drm/i915: Subtract total pinned bytes from available aperture size

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The old code was wandering through the active list looking for pinned
buffers; there may be other pinned buffers around. Fortunately, we keep a
count of the total amount of pinned memory and can use that instead.

Signed-off-by: Keith Packard <[email protected]>
Signed-off-by: Eric Anholt <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
This commit is contained in:
Keith Packard 2008-11-20 22:54:54 -08:00 • committed by Dave Airlie
commit 2678d9d696
1 changed files with 2 additions and 8 deletions
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10
drivers/gpu/drm/i915/i915_gem.c
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@ -85,20 +85,14 @@ int
i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_get_aperture *args = data;
struct drm_i915_gem_object *obj_priv;
if (!(dev->driver->driver_features & DRIVER_GEM))
return -ENODEV;
args->aper_size = dev->gtt_total;
args->aper_available_size = args->aper_size;
list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) {
if (obj_priv->pin_count > 0)
args->aper_available_size -= obj_priv->obj->size;
}
args->aper_available_size = (args->aper_size -
atomic_read(&dev->pin_memory));
return 0;
}