C++ (Cpp) mga_freelist_get示例

示例#1

文件： mga_dma.c 项目： JBTech/ralink_rt5350

static int mga_dma_get_buffers( drm_device_t *dev, drm_dma_t *d )
{
	drm_buf_t *buf;
	int i;

	for ( i = d->granted_count ; i < d->request_count ; i++ ) {
		buf = mga_freelist_get( dev );
		if ( !buf ) return -EAGAIN;

		buf->pid = current->pid;

		if ( copy_to_user( &d->request_indices[i],
				   &buf->idx, sizeof(buf->idx) ) )
			return -EFAULT;
		if ( copy_to_user( &d->request_sizes[i],
				   &buf->total, sizeof(buf->total) ) )
			return -EFAULT;

		d->granted_count++;
	}
	return 0;
}

示例#2

文件： mga_dma.c 项目： aosm/X11

static int mga_dma_get_buffers( DRMFILE filp,
				drm_device_t *dev, drm_dma_t *d )
{
	drm_buf_t *buf;
	int i;

	for ( i = d->granted_count ; i < d->request_count ; i++ ) {
		buf = mga_freelist_get( dev );
		if ( !buf ) return DRM_ERR(EAGAIN);

		buf->filp = filp;

		if ( DRM_COPY_TO_USER( &d->request_indices[i],
				   &buf->idx, sizeof(buf->idx) ) )
			return DRM_ERR(EFAULT);
		if ( DRM_COPY_TO_USER( &d->request_sizes[i],
				   &buf->total, sizeof(buf->total) ) )
			return DRM_ERR(EFAULT);

		d->granted_count++;
	}
	return 0;
}