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drm/vmwgfx: Allow userspace to change default layout. Bump minor.

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The host may change the layout and, since the change is
communicated to the master, the master needs a way to
communicate the change to the kernel driver.

The minor version number is bumped to advertize the
availability of this feature.

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jakob Bornecrantz
2010-06-01 11:54:20 +02:00
committed by Dave Airlie
parent 991b7b44f8
commit d8bd19d2af
6 changed files with 160 additions and 9 deletions
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45
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@@ -938,3 +938,48 @@ int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
return 0;
}
int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_update_layout_arg *arg =
(struct drm_vmw_update_layout_arg *)data;
struct vmw_master *vmaster = vmw_master(file_priv->master);
void __user *user_rects;
struct drm_vmw_rect *rects;
unsigned rects_size;
int ret;
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
return ret;
if (!arg->num_outputs) {
struct drm_vmw_rect def_rect = {0, 0, 800, 600};
vmw_kms_ldu_update_layout(dev_priv, 1, &def_rect);
goto out_unlock;
}
rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
rects = kzalloc(rects_size, GFP_KERNEL);
if (unlikely(!rects)) {
ret = -ENOMEM;
goto out_unlock;
}
user_rects = (void __user *)(unsigned long)arg->rects;
ret = copy_from_user(rects, user_rects, rects_size);
if (unlikely(ret != 0)) {
DRM_ERROR("Failed to get rects.\n");
goto out_free;
}
vmw_kms_ldu_update_layout(dev_priv, arg->num_outputs, rects);
out_free:
kfree(rects);
out_unlock:
ttm_read_unlock(&vmaster->lock);
return ret;
}