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yaml
---
r: 218971
b: refs/heads/master
c: a36274e
h: refs/heads/master
i:
  218969: 22cca18
  218967: 1d44ad0
v: v3
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Martin K. Petersen authored and Chris Ball committed Oct 23, 2010
1 parent 7d3eddb commit a1a58a0
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Showing 25 changed files with 32 additions and 53 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 7a5ea56abc493fd43fb8d5b2f55d18396ec048f1
refs/heads/master: a36274e0184193e393fb82957925c3981a6b0477
8 changes: 4 additions & 4 deletions trunk/drivers/mmc/card/queue.c
Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
}

#ifdef CONFIG_MMC_BLOCK_BOUNCE
if (host->max_hw_segs == 1) {
if (host->max_segs == 1) {
unsigned int bouncesz;

bouncesz = MMC_QUEUE_BOUNCESZ;
Expand Down Expand Up @@ -196,16 +196,16 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
blk_queue_bounce_limit(mq->queue, limit);
blk_queue_max_hw_sectors(mq->queue,
min(host->max_blk_count, host->max_req_size / 512));
blk_queue_max_segments(mq->queue, host->max_hw_segs);
blk_queue_max_segments(mq->queue, host->max_segs);
blk_queue_max_segment_size(mq->queue, host->max_seg_size);

mq->sg = kmalloc(sizeof(struct scatterlist) *
host->max_phys_segs, GFP_KERNEL);
host->max_segs, GFP_KERNEL);
if (!mq->sg) {
ret = -ENOMEM;
goto cleanup_queue;
}
sg_init_table(mq->sg, host->max_phys_segs);
sg_init_table(mq->sg, host->max_segs);
}

init_MUTEX(&mq->thread_sem);
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/core/host.c
Original file line number Diff line number Diff line change
Expand Up @@ -94,8 +94,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
* By default, hosts do not support SGIO or large requests.
* They have to set these according to their abilities.
*/
host->max_hw_segs = 1;
host->max_phys_segs = 1;
host->max_segs = 1;
host->max_seg_size = PAGE_CACHE_SIZE;

host->max_req_size = PAGE_CACHE_SIZE;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/at91_mci.c
Original file line number Diff line number Diff line change
Expand Up @@ -947,8 +947,7 @@ static int __init at91_mci_probe(struct platform_device *pdev)
mmc->max_blk_size = MCI_MAXBLKSIZE;
mmc->max_blk_count = MCI_BLKATONCE;
mmc->max_req_size = MCI_BUFSIZE;
mmc->max_phys_segs = MCI_BLKATONCE;
mmc->max_hw_segs = MCI_BLKATONCE;
mmc->max_segs = MCI_BLKATONCE;
mmc->max_seg_size = MCI_BUFSIZE;

host = mmc_priv(mmc);
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/atmel-mci.c
Original file line number Diff line number Diff line change
Expand Up @@ -1618,8 +1618,7 @@ static int __init atmci_init_slot(struct atmel_mci *host,
if (slot_data->bus_width >= 4)
mmc->caps |= MMC_CAP_4_BIT_DATA;

mmc->max_hw_segs = 64;
mmc->max_phys_segs = 64;
mmc->max_segs = 64;
mmc->max_req_size = 32768 * 512;
mmc->max_blk_size = 32768;
mmc->max_blk_count = 512;
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/mmc/host/au1xmmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -998,7 +998,7 @@ static int __devinit au1xmmc_probe(struct platform_device *pdev)
mmc->f_max = 24000000;

mmc->max_seg_size = AU1XMMC_DESCRIPTOR_SIZE;
mmc->max_phys_segs = AU1XMMC_DESCRIPTOR_COUNT;
mmc->max_segs = AU1XMMC_DESCRIPTOR_COUNT;

mmc->max_blk_size = 2048;
mmc->max_blk_count = 512;
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/mmc/host/bfin_sdh.c
Original file line number Diff line number Diff line change
Expand Up @@ -469,7 +469,7 @@ static int __devinit sdh_probe(struct platform_device *pdev)
}

mmc->ops = &sdh_ops;
mmc->max_phys_segs = 32;
mmc->max_segs = 32;
mmc->max_seg_size = 1 << 16;
mmc->max_blk_size = 1 << 11;
mmc->max_blk_count = 1 << 11;
Expand Down
8 changes: 3 additions & 5 deletions trunk/drivers/mmc/host/davinci_mmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -138,7 +138,7 @@
/*
* One scatterlist dma "segment" is at most MAX_CCNT rw_threshold units,
* and we handle up to MAX_NR_SG segments. MMC_BLOCK_BOUNCE kicks in only
* for drivers with max_hw_segs == 1, making the segments bigger (64KB)
* for drivers with max_segs == 1, making the segments bigger (64KB)
* than the page or two that's otherwise typical. nr_sg (passed from
* platform data) == 16 gives at least the same throughput boost, using
* EDMA transfer linkage instead of spending CPU time copying pages.
Expand Down Expand Up @@ -1239,8 +1239,7 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
* Each hw_seg uses one EDMA parameter RAM slot, always one
* channel and then usually some linked slots.
*/
mmc->max_hw_segs = 1 + host->n_link;
mmc->max_phys_segs = mmc->max_hw_segs;
mmc->max_segs = 1 + host->n_link;

/* EDMA limit per hw segment (one or two MBytes) */
mmc->max_seg_size = MAX_CCNT * rw_threshold;
Expand All @@ -1250,8 +1249,7 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
mmc->max_blk_count = 65535; /* NBLK is 16 bits */
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;

dev_dbg(mmc_dev(host->mmc), "max_phys_segs=%d\n", mmc->max_phys_segs);
dev_dbg(mmc_dev(host->mmc), "max_hw_segs=%d\n", mmc->max_hw_segs);
dev_dbg(mmc_dev(host->mmc), "max_segs=%d\n", mmc->max_segs);
dev_dbg(mmc_dev(host->mmc), "max_blk_size=%d\n", mmc->max_blk_size);
dev_dbg(mmc_dev(host->mmc), "max_req_size=%d\n", mmc->max_req_size);
dev_dbg(mmc_dev(host->mmc), "max_seg_size=%d\n", mmc->max_seg_size);
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/imxmmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -966,8 +966,7 @@ static int __init imxmci_probe(struct platform_device *pdev)
mmc->caps = MMC_CAP_4_BIT_DATA;

/* MMC core transfer sizes tunable parameters */
mmc->max_hw_segs = 64;
mmc->max_phys_segs = 64;
mmc->max_segs = 64;
mmc->max_seg_size = 64*512; /* default PAGE_CACHE_SIZE */
mmc->max_req_size = 64*512; /* default PAGE_CACHE_SIZE */
mmc->max_blk_size = 2048;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/jz4740_mmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -876,8 +876,7 @@ static int __devinit jz4740_mmc_probe(struct platform_device* pdev)
mmc->max_blk_count = (1 << 15) - 1;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;

mmc->max_phys_segs = 128;
mmc->max_hw_segs = 128;
mmc->max_segs = 128;
mmc->max_seg_size = mmc->max_req_size;

host->mmc = mmc;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/mmc_spi.c
Original file line number Diff line number Diff line change
Expand Up @@ -1345,8 +1345,7 @@ static int mmc_spi_probe(struct spi_device *spi)

mmc->ops = &mmc_spi_ops;
mmc->max_blk_size = MMC_SPI_BLOCKSIZE;
mmc->max_hw_segs = MMC_SPI_BLOCKSATONCE;
mmc->max_phys_segs = MMC_SPI_BLOCKSATONCE;
mmc->max_segs = MMC_SPI_BLOCKSATONCE;
mmc->max_req_size = MMC_SPI_BLOCKSATONCE * MMC_SPI_BLOCKSIZE;
mmc->max_blk_count = MMC_SPI_BLOCKSATONCE;

Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/mmci.c
Original file line number Diff line number Diff line change
Expand Up @@ -734,8 +734,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
/*
* We can do SGIO
*/
mmc->max_hw_segs = 16;
mmc->max_phys_segs = NR_SG;
mmc->max_segs = NR_SG;

/*
* Since only a certain number of bits are valid in the data length
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/msm_sdcc.c
Original file line number Diff line number Diff line change
Expand Up @@ -1164,8 +1164,7 @@ msmsdcc_probe(struct platform_device *pdev)
mmc->caps |= MMC_CAP_SDIO_IRQ;
mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;

mmc->max_phys_segs = NR_SG;
mmc->max_hw_segs = NR_SG;
mmc->max_segs = NR_SG;
mmc->max_blk_size = 4096; /* MCI_DATA_CTL BLOCKSIZE up to 4096 */
mmc->max_blk_count = 65536;

Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/mvsdio.c
Original file line number Diff line number Diff line change
Expand Up @@ -742,8 +742,7 @@ static int __init mvsd_probe(struct platform_device *pdev)
mmc->max_blk_size = 2048;
mmc->max_blk_count = 65535;

mmc->max_hw_segs = 1;
mmc->max_phys_segs = 1;
mmc->max_segs = 1;
mmc->max_seg_size = mmc->max_blk_size * mmc->max_blk_count;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;

Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/mxcmmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -790,8 +790,7 @@ static int mxcmci_probe(struct platform_device *pdev)
mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;

/* MMC core transfer sizes tunable parameters */
mmc->max_hw_segs = 64;
mmc->max_phys_segs = 64;
mmc->max_segs = 64;
mmc->max_blk_size = 2048;
mmc->max_blk_count = 65535;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/omap.c
Original file line number Diff line number Diff line change
Expand Up @@ -1335,8 +1335,7 @@ static int __init mmc_omap_new_slot(struct mmc_omap_host *host, int id)
* NOTE max_seg_size assumption that small blocks aren't
* normally used (except e.g. for reading SD registers).
*/
mmc->max_phys_segs = 32;
mmc->max_hw_segs = 32;
mmc->max_segs = 32;
mmc->max_blk_size = 2048; /* BLEN is 11 bits (+1) */
mmc->max_blk_count = 2048; /* NBLK is 11 bits (+1) */
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/omap_hsmmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -2105,8 +2105,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)

/* Since we do only SG emulation, we can have as many segs
* as we want. */
mmc->max_phys_segs = 1024;
mmc->max_hw_segs = 1024;
mmc->max_segs = 1024;

mmc->max_blk_size = 512; /* Block Length at max can be 1024 */
mmc->max_blk_count = 0xFFFF; /* No. of Blocks is 16 bits */
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/mmc/host/pxamci.c
Original file line number Diff line number Diff line change
Expand Up @@ -576,7 +576,7 @@ static int pxamci_probe(struct platform_device *pdev)
* We can do SG-DMA, but we don't because we never know how much
* data we successfully wrote to the card.
*/
mmc->max_phys_segs = NR_SG;
mmc->max_segs = NR_SG;

/*
* Our hardware DMA can handle a maximum of one page per SG entry.
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/s3cmci.c
Original file line number Diff line number Diff line change
Expand Up @@ -1736,8 +1736,7 @@ static int __devinit s3cmci_probe(struct platform_device *pdev)
mmc->max_req_size = 4095 * 512;
mmc->max_seg_size = mmc->max_req_size;

mmc->max_phys_segs = 128;
mmc->max_hw_segs = 128;
mmc->max_segs = 128;

dbg(host, dbg_debug,
"probe: mode:%s mapped mci_base:%p irq:%u irq_cd:%u dma:%u.\n",
Expand Down
7 changes: 3 additions & 4 deletions trunk/drivers/mmc/host/sdhci.c
Original file line number Diff line number Diff line change
Expand Up @@ -1850,12 +1850,11 @@ int sdhci_add_host(struct sdhci_host *host)
* can do scatter/gather or not.
*/
if (host->flags & SDHCI_USE_ADMA)
mmc->max_hw_segs = 128;
mmc->max_segs = 128;
else if (host->flags & SDHCI_USE_SDMA)
mmc->max_hw_segs = 1;
mmc->max_segs = 1;
else /* PIO */
mmc->max_hw_segs = 128;
mmc->max_phys_segs = 128;
mmc->max_segs = 128;

/*
* Maximum number of sectors in one transfer. Limited by DMA boundary
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/sh_mmcif.c
Original file line number Diff line number Diff line change
Expand Up @@ -846,8 +846,7 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
mmc->caps = MMC_CAP_MMC_HIGHSPEED;
if (pd->caps)
mmc->caps |= pd->caps;
mmc->max_phys_segs = 128;
mmc->max_hw_segs = 128;
mmc->max_segs = 128;
mmc->max_blk_size = 512;
mmc->max_blk_count = 65535;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/tifm_sd.c
Original file line number Diff line number Diff line change
Expand Up @@ -978,11 +978,10 @@ static int tifm_sd_probe(struct tifm_dev *sock)
mmc->f_max = 24000000;

mmc->max_blk_count = 2048;
mmc->max_hw_segs = mmc->max_blk_count;
mmc->max_segs = mmc->max_blk_count;
mmc->max_blk_size = min(TIFM_MMCSD_MAX_BLOCK_SIZE, PAGE_SIZE);
mmc->max_seg_size = mmc->max_blk_count * mmc->max_blk_size;
mmc->max_req_size = mmc->max_seg_size;
mmc->max_phys_segs = mmc->max_hw_segs;

sock->card_event = tifm_sd_card_event;
sock->data_event = tifm_sd_data_event;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/via-sdmmc.c
Original file line number Diff line number Diff line change
Expand Up @@ -1050,8 +1050,7 @@ static void via_init_mmc_host(struct via_crdr_mmc_host *host)
mmc->ops = &via_sdc_ops;

/*Hardware cannot do scatter lists*/
mmc->max_hw_segs = 1;
mmc->max_phys_segs = 1;
mmc->max_segs = 1;

mmc->max_blk_size = VIA_CRDR_MAX_BLOCK_LENGTH;
mmc->max_blk_count = VIA_CRDR_MAX_BLOCK_COUNT;
Expand Down
3 changes: 1 addition & 2 deletions trunk/drivers/mmc/host/wbsd.c
Original file line number Diff line number Diff line change
Expand Up @@ -1235,8 +1235,7 @@ static int __devinit wbsd_alloc_mmc(struct device *dev)
* Maximum number of segments. Worst case is one sector per segment
* so this will be 64kB/512.
*/
mmc->max_hw_segs = 128;
mmc->max_phys_segs = 128;
mmc->max_segs = 128;

/*
* Maximum request size. Also limited by 64KiB buffer.
Expand Down
3 changes: 1 addition & 2 deletions trunk/include/linux/mmc/host.h
Original file line number Diff line number Diff line change
Expand Up @@ -162,8 +162,7 @@ struct mmc_host {

/* host specific block data */
unsigned int max_seg_size; /* see blk_queue_max_segment_size */
unsigned short max_hw_segs; /* see blk_queue_max_hw_segments */
unsigned short max_phys_segs; /* see blk_queue_max_phys_segments */
unsigned short max_segs; /* see blk_queue_max_segments */
unsigned short unused;
unsigned int max_req_size; /* maximum number of bytes in one req */
unsigned int max_blk_size; /* maximum size of one mmc block */
Expand Down

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