linux/drivers/mmc/core
Gwendal Grignou c6d8fd61c0 mmc: Set pref erase size based on size
If available, eMMC stack uses HC_ERASE_GRP_SIZE as the preferred erase
size. As some high capacity eMMC (64MB) reports this size to 512kB, the
discard operations end up taking very long time.

Improve the behaviour by instead calculating the preferred erase size
based on the eMMC size. In this way the discard operations becomes faster.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
[Ulf: Updated changelog and improved comment in code]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:11 +02:00
..
bus.c mmc: core: implement enhanced strobe support 2016-07-25 10:34:05 +02:00
bus.h mmc: rename dev_to_mmc_card() to mmc_dev_to_card() 2010-10-23 21:11:12 +08:00
core.c mmc: Set pref erase size based on size 2016-07-25 10:34:11 +02:00
core.h mmc: fix mmc_{un,}register_pm_notifier prototypes 2015-12-22 11:32:09 +01:00
debugfs.c mmc: debugfs: add HS400 enhanced strobe description 2016-07-25 10:34:06 +02:00
host.c mmc: core: add mmc-hs400-enhanced-strobe support 2016-07-25 10:34:05 +02:00
host.h mmc: host: Add facility to support re-tuning 2015-06-01 09:06:53 +02:00
Kconfig mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
Makefile mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
mmc.c mmc: mmc: Fix HS switch failure in mmc_select_hs400() 2016-07-25 10:34:09 +02:00
mmc_ops.c mmc: mmc: fix switch timeout issue caused by jiffies precision 2016-07-25 10:34:09 +02:00
mmc_ops.h mmc: core: Convert __mmc_switch() into an internal core function 2015-10-26 15:59:54 +01:00
pwrseq.c mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
pwrseq.h mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
pwrseq_emmc.c mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
pwrseq_simple.c mmc: pwrseq: convert to proper platform device 2016-05-02 10:33:30 +02:00
quirks.c mmc: core: Remove MMC_CLKGATE 2015-10-26 16:00:09 +01:00
sd.c mmc: core: remove redundant memset of mmc_decode_cid 2016-03-17 14:54:41 +01:00
sd.h mmc: drop the speed mode of card's state 2014-05-12 18:05:53 -04:00
sd_ops.c mmc: remove unnecessary assignment statements before return 2016-02-29 11:02:47 +01:00
sd_ops.h mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
sdio.c mmc: core: remove redundant memset of sdio_read_cccr 2016-03-17 14:54:41 +01:00
sdio_bus.c mmc: enable MMC/SD/SDIO device to suspend/resume asynchronously 2015-12-22 11:32:16 +01:00
sdio_bus.h
sdio_cis.c mmc: sdio: fall back to SDIO 1.0 for broken 1.1 cards 2016-05-16 11:31:27 +02:00
sdio_cis.h
sdio_io.c mmc: sdio: Use multiple scatter/gather list 2012-12-06 13:54:43 -05:00
sdio_irq.c mmc: core: Remove MMC_CLKGATE 2015-10-26 16:00:09 +01:00
sdio_ops.c mmc: remove unnecessary assignment statements before return 2016-02-29 11:02:47 +01:00
sdio_ops.h mmc: Add mmc_is_io_op helper function 2015-10-26 16:00:01 +01:00
slot-gpio.c mmc: slot-gpio: Allow host driver to provide isr for card-detect interrupts 2015-01-19 09:56:29 +01:00
slot-gpio.h mmc: slot-gpio: Make mmc_gpio_alloc() available for MMC core 2015-01-19 09:56:17 +01:00