IVPU_MMU_CMDQ_SIZE
q->base = dmam_alloc_coherent(vdev->drm.dev, IVPU_MMU_CMDQ_SIZE, &q->dma, GFP_KERNEL);
&q->dma, &q->dma_q, IVPU_MMU_CMDQ_SIZE);
clflush_cache_range(q->base, IVPU_MMU_CMDQ_SIZE);
memset(mmu->cmdq.base, 0, IVPU_MMU_CMDQ_SIZE);
clflush_cache_range(mmu->cmdq.base, IVPU_MMU_CMDQ_SIZE);