linux/drivers/mmc/core
Avri Altman 97fce126e2 mmc: block: Issue a cache flush only when it's enabled
In command queueing mode, the cache isn't flushed via the mmc_flush_cache()
function, but instead by issuing a CMDQ_TASK_MGMT (CMD48) with a
FLUSH_CACHE opcode. In this path, we need to check if cache has been
enabled, before deciding to flush the cache, along the lines of what's
being done in mmc_flush_cache().

To fix this problem, let's add a new bus ops callback ->cache_enabled() and
implement it for the mmc bus type. In this way, the mmc block device driver
can call it to know whether cache flushing should be done.

Fixes: 1e8e55b670 (mmc: block: Add CQE support)
Cc: stable@vger.kernel.org
Reported-by: Brendan Peter <bpeter@lytx.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Tested-by: Brendan Peter <bpeter@lytx.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20210425060207.2591-2-avri.altman@wdc.com
Link: https://lore.kernel.org/r/20210425060207.2591-3-avri.altman@wdc.com
[Ulf: Squashed the two patches and made some minor updates]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-04-26 11:37:23 +02:00
..
block.c mmc: block: Issue a cache flush only when it's enabled 2021-04-26 11:37:23 +02:00
block.h
bus.c mmc: cqhci: Fix random crash when remove mmc module/card 2021-03-09 10:00:52 +01:00
bus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
card.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
core.c mmc: core: Fix hanging on I/O during system suspend for removable cards 2021-03-30 11:42:03 +02:00
core.h mmc: block: Issue a cache flush only when it's enabled 2021-04-26 11:37:23 +02:00
crypto.c mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
crypto.h mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
debugfs.c mmc: core: Use DEFINE_DEBUGFS_ATTRIBUTE instead of DEFINE_SIMPLE_ATTRIBUTE 2020-05-28 11:21:01 +02:00
host.c mmc: core: Convert mmc_of_parse_voltage() to use device property API 2021-04-23 09:29:49 +02:00
host.h mmc: core: Initial support for SD express card/host 2020-11-16 11:59:28 +01:00
Kconfig mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
Makefile mmc: core: Add basic support for inline encryption 2021-02-01 12:02:33 +01:00
mmc_ops.c mmc: block: Issue a cache flush only when it's enabled 2021-04-26 11:37:23 +02:00
mmc_ops.h mmc: core: Add a retries parameter to __mmc_switch function 2021-04-15 13:43:17 +02:00
mmc_test.c mmc: mmc_test: use erase_arg for mmc_erase command 2021-02-12 12:07:03 +01:00
mmc.c mmc: block: Issue a cache flush only when it's enabled 2021-04-26 11:37:23 +02:00
pwrseq_emmc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pwrseq_sd8787.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
pwrseq_simple.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pwrseq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pwrseq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
queue.c mmc: core: Remove mq->use_cqe from the struct mmc_queue 2021-03-30 11:42:02 +02:00
queue.h mmc: core: Remove mq->use_cqe from the struct mmc_queue 2021-03-30 11:42:02 +02:00
quirks.h mmc: core: Mark fixups as __maybe_unused 2020-07-13 12:18:25 +02:00
regulator.c mmc: core: Add missing documetation for 'mmc' and 'ios' 2020-07-13 12:18:25 +02:00
sd_ops.c mmc: core: Initial support for SD express card/host 2020-11-16 11:59:28 +01:00
sd_ops.h mmc: core: Initial support for SD express card/host 2020-11-16 11:59:28 +01:00
sd.c mmc: core: Set read only for SD cards with permanent write protect bit 2021-03-30 11:41:59 +02:00
sd.h mmc: core: remove unused host parameter of mmc_sd_get_csd() 2021-02-01 11:54:48 +01:00
sdio_bus.c mmc: sdio: Export SDIO revision and info strings to userspace 2020-09-07 09:11:29 +02:00
sdio_bus.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio_cis.c mmc: core: Limit retries when analyse of SDIO tuples fails 2021-02-01 11:13:06 +01:00
sdio_cis.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio_io.c mmc: core: Provide description for sdio_set_host_pm_flags()'s 'flag' arg 2020-07-13 12:18:25 +02:00
sdio_irq.c sched,mmc: Convert to sched_set_fifo*() 2020-06-15 14:10:22 +02:00
sdio_ops.c mmc: sdio: Use mmc_pre_req() / mmc_post_req() 2020-09-07 08:57:44 +02:00
sdio_ops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio_uart.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sdio.c mmc: core: Fix hanging on I/O during system suspend for removable cards 2021-03-30 11:42:03 +02:00
slot-gpio.c mmc: core: Remove mmc_gpiod_request_*(invert_gpio) 2019-12-18 13:37:07 +01:00
slot-gpio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00