Commit 66e8d3b8 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Konrad Rzeszutek Wilk
Browse files

sdhci: stop poking into swiotlb internals 



Use the proper API to query the max mapping size instead of guessing
it based on swiotlb internals.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 1048ba83

drivers/mmc/host/sdhci.c

+2 −7
Original line number Diff line number Diff line
@@ -20,7 +20,6 @@ 
#include <linux/slab.h>

#include <linux/scatterlist.h>

#include <linux/sizes.h>

#include <linux/swiotlb.h>

#include <linux/regulator/consumer.h>

#include <linux/pm_runtime.h>

#include <linux/of.h>
@@ -4582,12 +4581,8 @@ int sdhci_setup_host(struct sdhci_host *host) 
		mmc->max_segs = SDHCI_MAX_SEGS;

	} else if (host->flags & SDHCI_USE_SDMA) {

		mmc->max_segs = 1;

		if (swiotlb_max_segment()) {

			unsigned int max_req_size = (1 << IO_TLB_SHIFT) *

						IO_TLB_SEGSIZE;

			mmc->max_req_size = min(mmc->max_req_size,

						max_req_size);

		}

		mmc->max_req_size = min_t(size_t, mmc->max_req_size,

					  dma_max_mapping_size(mmc_dev(mmc)));

	} else { /* PIO */

		mmc->max_segs = SDHCI_MAX_SEGS;

	}