diff options
| author | Eric Anholt <eric@anholt.net> | 2008-10-23 08:40:13 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2008-11-03 03:56:49 +0300 |
| commit | 5a125c3c79167e78ba44efef03af7090ef28eeaf (patch) | |
| tree | b8c3a9e44ea44b7afc821c0422a7ea6360814f03 /drivers/gpu/drm/i915/i915_gem.c | |
| parent | 4e270e9b8a9d246290f3901f1fb6c5efdb734ddf (diff) | |
| download | linux-5a125c3c79167e78ba44efef03af7090ef28eeaf.tar.xz | |
i915: Add GEM ioctl to get available aperture size.
This will let userland know when to submit its batchbuffers, before they get
too big to fit in the aperture.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 17ae330ff269..c1733ac4a7f5 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -79,6 +79,28 @@ i915_gem_init_ioctl(struct drm_device *dev, void *data, return 0; } +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; + } + + return 0; +} + /** * Creates a new mm object and returns a handle to it. |