Commit faf73fa1 authored by Ulf Hansson's avatar Ulf Hansson

Merge branch 'fixes' into next

parents 35ed78a0 48e1dc10
...@@ -146,11 +146,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, ...@@ -146,11 +146,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
WARN_ON(host->sg_len > 1); WARN_ON(host->sg_len > 1);
/* This DMAC cannot handle if buffer is not 8-bytes alignment */ /* This DMAC cannot handle if buffer is not 8-bytes alignment */
if (!IS_ALIGNED(sg->offset, 8)) { if (!IS_ALIGNED(sg->offset, 8))
host->force_pio = true; goto force_pio;
renesas_sdhi_internal_dmac_enable_dma(host, false);
return;
}
if (data->flags & MMC_DATA_READ) { if (data->flags & MMC_DATA_READ) {
dtran_mode |= DTRAN_MODE_CH_NUM_CH1; dtran_mode |= DTRAN_MODE_CH_NUM_CH1;
...@@ -163,8 +160,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, ...@@ -163,8 +160,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
} }
ret = dma_map_sg(&host->pdev->dev, sg, host->sg_len, dir); ret = dma_map_sg(&host->pdev->dev, sg, host->sg_len, dir);
if (ret < 0) if (ret == 0)
return; goto force_pio;
renesas_sdhi_internal_dmac_enable_dma(host, true); renesas_sdhi_internal_dmac_enable_dma(host, true);
...@@ -176,6 +173,12 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, ...@@ -176,6 +173,12 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
dtran_mode); dtran_mode);
renesas_sdhi_internal_dmac_dm_write(host, DM_DTRAN_ADDR, renesas_sdhi_internal_dmac_dm_write(host, DM_DTRAN_ADDR,
sg->dma_address); sg->dma_address);
return;
force_pio:
host->force_pio = true;
renesas_sdhi_internal_dmac_enable_dma(host, false);
} }
static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg) static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg)
......
...@@ -47,6 +47,7 @@ ...@@ -47,6 +47,7 @@
#include <linux/mmc/sdio.h> #include <linux/mmc/sdio.h>
#include <linux/scatterlist.h> #include <linux/scatterlist.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/swiotlb.h>
#include <linux/workqueue.h> #include <linux/workqueue.h>
#include "tmio_mmc.h" #include "tmio_mmc.h"
...@@ -1215,6 +1216,18 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, ...@@ -1215,6 +1216,18 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
mmc->max_blk_count = pdata->max_blk_count ? : mmc->max_blk_count = pdata->max_blk_count ? :
(PAGE_SIZE / mmc->max_blk_size) * mmc->max_segs; (PAGE_SIZE / mmc->max_blk_size) * mmc->max_segs;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
/*
* Since swiotlb has memory size limitation, this will calculate
* the maximum size locally (because we don't have any APIs for it now)
* and check the current max_req_size. And then, this will update
* the max_req_size if needed as a workaround.
*/
if (swiotlb_max_segment()) {
unsigned int max_size = (1 << IO_TLB_SHIFT) * IO_TLB_SEGSIZE;
if (mmc->max_req_size > max_size)
mmc->max_req_size = max_size;
}
mmc->max_seg_size = mmc->max_req_size; mmc->max_seg_size = mmc->max_req_size;
_host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD || _host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD ||
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment