mmc: Remove distinction between hw and phys segments
We have deprecated the distinction between hardware and physical
segments in the block layer. Consolidate the two limits into one in
drivers/mmc/.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 9c0b42b..7c3392e 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -146,7 +146,7 @@
}
#ifdef CONFIG_MMC_BLOCK_BOUNCE
- if (host->max_hw_segs == 1) {
+ if (host->max_segs == 1) {
unsigned int bouncesz;
bouncesz = MMC_QUEUE_BOUNCESZ;
@@ -196,16 +196,16 @@
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);
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index d80cfdc..10b8af2 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -94,8 +94,7 @@
* 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;
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 339e591..591ab54 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -947,8 +947,7 @@
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);
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 1d4e546..301351a 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1618,8 +1618,7 @@
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;
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index e14b866..41e5a60 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -998,7 +998,7 @@
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;
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index 4b0e677..bac7d62 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -469,7 +469,7 @@
}
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;
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 33d9f1b..e15547c 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -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.
@@ -1239,8 +1239,7 @@
* 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;
@@ -1250,8 +1249,7 @@
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);
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index 5a950b1..881f7ba 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -966,8 +966,7 @@
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;
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index ad4f987..b3a0ab0 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -876,8 +876,7 @@
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;
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 62a3582..5b0b506 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1345,8 +1345,7 @@
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;
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index f2e02d7..5f2e72d 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -734,8 +734,7 @@
/*
* 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
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index ff77523..1290d14 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1164,8 +1164,7 @@
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;
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 366eefa..a5bf60e 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -742,8 +742,7 @@
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;
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 350f78e..bdd2cbb 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -790,8 +790,7 @@
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;
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index d98ddcf..0c7e37f 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1335,8 +1335,7 @@
* 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;
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 4526d27..03c26e0 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2105,8 +2105,7 @@
/* 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 */
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 0a4e43f..b7dfcac 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -576,7 +576,7 @@
* 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.
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 976330d..1ccd4b2 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1736,8 +1736,7 @@
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",
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 401527d..f608626 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1850,12 +1850,11 @@
* 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
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 5d3f824..0f06b80 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -846,8 +846,7 @@
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;
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index cec9995..457c26e 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -978,11 +978,10 @@
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;
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 19f2d72..9ed84dd 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -1050,8 +1050,7 @@
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;
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 0012f5d..7fca0a3 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1235,8 +1235,7 @@
* 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.