Commit 83c49302 authored by Yue Hu's avatar Yue Hu Committed by Ulf Hansson
Browse files

mmc: cqhci: introduce get_trans_desc_offset() 



The same calculation to get transfer descriptor offset is already used
at 3 different locations. Let's create a new helper to simplify code.

Signed-off-by: default avatarYue Hu <huyue2@yulong.com>
Link: https://lore.kernel.org/r/20210521034432.2321-1-zbestahu@gmail.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 47d23c95

drivers/mmc/host/cqhci-core.c

+12 −7
Original line number Diff line number Diff line
@@ -45,17 +45,23 @@ static inline u8 *get_link_desc(struct cqhci_host *cq_host, u8 tag) 
	return desc + cq_host->task_desc_len;

}



static inline size_t get_trans_desc_offset(struct cqhci_host *cq_host, u8 tag)

{

	return cq_host->trans_desc_len * cq_host->mmc->max_segs * tag;

}



static inline dma_addr_t get_trans_desc_dma(struct cqhci_host *cq_host, u8 tag)

{

	return cq_host->trans_desc_dma_base +

		(cq_host->mmc->max_segs * tag *

		 cq_host->trans_desc_len);

	size_t offset = get_trans_desc_offset(cq_host, tag);



	return cq_host->trans_desc_dma_base + offset;

}



static inline u8 *get_trans_desc(struct cqhci_host *cq_host, u8 tag)

{

	return cq_host->trans_desc_base +

		(cq_host->trans_desc_len * cq_host->mmc->max_segs * tag);

	size_t offset = get_trans_desc_offset(cq_host, tag);



	return cq_host->trans_desc_base + offset;

}



static void setup_trans_desc(struct cqhci_host *cq_host, u8 tag)
@@ -194,8 +200,7 @@ static int cqhci_host_alloc_tdl(struct cqhci_host *cq_host) 


	cq_host->desc_size = cq_host->slot_sz * cq_host->num_slots;



	cq_host->data_size = cq_host->trans_desc_len * cq_host->mmc->max_segs *

		cq_host->mmc->cqe_qdepth;

	cq_host->data_size = get_trans_desc_offset(cq_host, cq_host->mmc->cqe_qdepth);



	pr_debug("%s: cqhci: desc_size: %zu data_sz: %zu slot-sz: %d\n",

		 mmc_hostname(cq_host->mmc), cq_host->desc_size, cq_host->data_size,