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Commit 33eba78c authored by Tharun Kumar Merugu's avatar Tharun Kumar Merugu
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adsprpc: Increment map size for each entry in SGL 



Incrementally update the memory map size from each entry in the
DMA scatter-gather list.

Change-Id: Ia44d5140df3de385ca0324b540c8ad715f5f087b
Acked-by: default avatarThyagarajan Venkatanarayanan <venkatan@qti.qualcomm.com>
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent 76154d31

drivers/char/adsprpc.c

+6 −3
Original line number Diff line number Diff line
@@ -663,7 +663,8 @@ static int fastrpc_mmap_create(struct fastrpc_file *fl, int fd, 
	dma_addr_t region_phys = 0;

	void *region_vaddr = NULL;

	unsigned long flags;

	int err = 0, vmid;

	int err = 0, vmid, sgl_index = 0;

	struct scatterlist *sgl = NULL;



	if (!fastrpc_mmap_find(fl, fd, va, len, mflags, 1, ppmap))

		return 0;
@@ -748,7 +749,9 @@ static int fastrpc_mmap_create(struct fastrpc_file *fl, int fd, 
		map->phys = sg_dma_address(map->table->sgl);

		if (sess->smmu.cb) {

			map->phys += ((uint64_t)sess->smmu.cb << 32);

			map->size = sg_dma_len(map->table->sgl);

			for_each_sg(map->table->sgl, sgl, map->table->nents,

				sgl_index)

				map->size += sg_dma_len(sgl);

		} else {

			map->size = buf_page_size(len);

		}
@@ -2136,7 +2139,7 @@ static int fastrpc_internal_munmap_fd(struct fastrpc_file *fl, 
		goto bail;



	if (fastrpc_mmap_find(fl, ud->fd, ud->va, ud->len, 0, 0, &map)) {

		pr_err("adsprpc: mapping not found to unmap %d va %llx %x\n",

		pr_err("adsprpc: mapping not found to unmap fd 0x%x, va 0x%llx, len 0x%x\n",

			ud->fd, (unsigned long long)ud->va,

			(unsigned int)ud->len);

		err = -1;