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vmwgfx: add dumb ioctl support

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Testing and works with the -modesetting driver,

Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-08-28 01:53:54 +00:00
parent 26df641eac
commit 5e1782d224
3 changed files with 88 additions and 0 deletions
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5
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
View file

@ -1155,6 +1155,11 @@ static struct drm_driver driver = {
.open = vmw_driver_open,
.preclose = vmw_preclose,
.postclose = vmw_postclose,
.dumb_create = vmw_dumb_create,
.dumb_map_offset = vmw_dumb_map_offset,
.dumb_destroy = vmw_dumb_destroy,
.fops = &vmwgfx_driver_fops,
.name = VMWGFX_DRIVER_NAME,
.desc = VMWGFX_DRIVER_DESC,

10
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
View file

@ -645,6 +645,16 @@ int vmw_kms_readback(struct vmw_private *dev_priv,
int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int vmw_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
int vmw_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *dev, uint32_t handle,
uint64_t *offset);
int vmw_dumb_destroy(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle);
/**
* Overlay control - vmwgfx_overlay.c
*/

73
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
View file

@ -1917,3 +1917,76 @@ int vmw_user_stream_lookup(struct vmw_private *dev_priv,
vmw_resource_unreference(&res);
return ret;
}
int vmw_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct vmw_user_dma_buffer *vmw_user_bo;
struct ttm_buffer_object *tmp;
int ret;
args->pitch = args->width * ((args->bpp + 7) / 8);
args->size = args->pitch * args->height;
vmw_user_bo = kzalloc(sizeof(*vmw_user_bo), GFP_KERNEL);
if (vmw_user_bo == NULL)
return -ENOMEM;
ret = ttm_read_lock(&vmaster->lock, true);
if (ret != 0) {
kfree(vmw_user_bo);
return ret;
}
ret = vmw_dmabuf_init(dev_priv, &vmw_user_bo->dma, args->size,
&vmw_vram_sys_placement, true,
&vmw_user_dmabuf_destroy);
if (ret != 0)
goto out_no_dmabuf;
tmp = ttm_bo_reference(&vmw_user_bo->dma.base);
ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile,
&vmw_user_bo->base,
false,
ttm_buffer_type,
&vmw_user_dmabuf_release, NULL);
if (unlikely(ret != 0))
goto out_no_base_object;
args->handle = vmw_user_bo->base.hash.key;
out_no_base_object:
ttm_bo_unref(&tmp);
out_no_dmabuf:
ttm_read_unlock(&vmaster->lock);
return ret;
}
int vmw_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *dev, uint32_t handle,
uint64_t *offset)
{
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
struct vmw_dma_buffer *out_buf;
int ret;
ret = vmw_user_dmabuf_lookup(tfile, handle, &out_buf);
if (ret != 0)
return -EINVAL;
*offset = out_buf->base.addr_space_offset;
vmw_dmabuf_unreference(&out_buf);
return 0;
}
int vmw_dumb_destroy(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle)
{
return ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile,
handle, TTM_REF_USAGE);
}