Lines Matching +full:prefetch +full:- +full:dma

1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/prefetch.h>
5  * iommu_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir.
9  * @hint: The DMA Hint.
20 	struct scatterlist *dma_sg = startsg;	/* pointer to current DMA */  in iommu_fill_pdir()
28 	 dma_sg--;  in iommu_fill_pdir()
30 	while (nents-- > 0) {  in iommu_fill_pdir()
36 			   sg_virt(startsg), startsg->length  in iommu_fill_pdir()
41 		** Look for the start of a new DMA stream  in iommu_fill_pdir()
57 			sg_dma_address(dma_sg) = pide | ioc->ibase;  in iommu_fill_pdir()
64 			pdirp = &(ioc->pdir_base[pide >> IOVP_SHIFT]);  in iommu_fill_pdir()
71 		sg_dma_len(dma_sg) += startsg->length;  in iommu_fill_pdir()
72 		size = startsg->length + dma_offset;  in iommu_fill_pdir()
75 		ioc->msg_pages += startsg->length >> IOVP_SHIFT;  in iommu_fill_pdir()
81 			size -= IOVP_SIZE;  in iommu_fill_pdir()
92 ** in the DMA stream. Allocates PDIR entries but does not fill them.
93 ** Returns the number of DMA chunks.
106 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */  in iommu_coalesce_chunks()
117 		** Prepare for first/next DMA stream  in iommu_coalesce_chunks()
120 		dma_len = startsg->length;  in iommu_coalesce_chunks()
121 		dma_offset = startsg->offset;  in iommu_coalesce_chunks()
131 		while(--nents > 0) {  in iommu_coalesce_chunks()
135 							startsg->length;  in iommu_coalesce_chunks()
145 			** First make sure current dma stream won't  in iommu_coalesce_chunks()
149 			if (unlikely(ALIGN(dma_len + dma_offset + startsg->length, IOVP_SIZE) >  in iommu_coalesce_chunks()
163 			dma_len += startsg->length;  in iommu_coalesce_chunks()
167 		** End of DMA Stream  in iommu_coalesce_chunks()
169 		** Allocate space for DMA stream.  in iommu_coalesce_chunks()