gem_init_block
struct gem_init_block *gb = gp->init_block;
struct gem_init_block *gb = gp->init_block;
dma_free_coherent(&pdev->dev, sizeof(struct gem_init_block),
gp->init_block = dma_alloc_coherent(&pdev->dev, sizeof(struct gem_init_block),
dma_free_coherent(&pdev->dev, sizeof(struct gem_init_block),
struct gem_init_block *init_block;