media/ipu3/ipu3-mmu.c

150  * @iova: IOVA to split.
154 static inline void address_to_pte_idx(unsigned long iova, u32 *l1pt_idx,
157 	iova >>= IPU3_PAGE_SHIFT;
160 		*l2pt_idx = iova & IPU3_L2PT_MASK;
162 	iova >>= IPU3_L2PT_SHIFT;
165 		*l1pt_idx = iova & IPU3_L1PT_MASK;
210 static int __imgu_mmu_map(struct imgu_mmu *mmu, unsigned long iova,
220 	address_to_pte_idx(iova, &l1pt_idx, &l2pt_idx);
244  * @iova: the virtual address
251 int imgu_mmu_map(struct imgu_mmu_info *info, unsigned long iova,
262 	if (!IS_ALIGNED(iova | paddr | size, IPU3_PAGE_SIZE)) {
263 		dev_err(mmu->dev, "unaligned: iova 0x%lx pa %pa size 0x%zx\n",
264 			iova, &paddr, size);
268 	dev_dbg(mmu->dev, "map: iova 0x%lx pa %pa size 0x%zx\n",
269 		iova, &paddr, size);
272 		dev_dbg(mmu->dev, "mapping: iova 0x%lx pa %pa\n", iova, &paddr);
274 		ret = __imgu_mmu_map(mmu, iova, paddr);
278 		iova += IPU3_PAGE_SIZE;
292  * @iova: the virtual address
299 size_t imgu_mmu_map_sg(struct imgu_mmu_info *info, unsigned long iova,
320 		ret = imgu_mmu_map(info, iova + mapped, phys, s_length);
333 	imgu_mmu_unmap(info, iova, mapped);
339 			       unsigned long iova, size_t size)
349 	address_to_pte_idx(iova, &l1pt_idx, &l2pt_idx);
373  * @iova: the virtual address
379 size_t imgu_mmu_unmap(struct imgu_mmu_info *info, unsigned long iova,
390 	if (!IS_ALIGNED(iova | size, IPU3_PAGE_SIZE)) {
391 		dev_err(mmu->dev, "unaligned: iova 0x%lx size 0x%zx\n",
392 			iova, size);
396 	dev_dbg(mmu->dev, "unmap this: iova 0x%lx size 0x%zx\n", iova, size);
403 		unmapped_page = __imgu_mmu_unmap(mmu, iova, IPU3_PAGE_SIZE);
407 		dev_dbg(mmu->dev, "unmapped: iova 0x%lx size 0x%zx\n",
408 			iova, unmapped_page);
410 		iova += unmapped_page;