kernel_optimize_test/include
Baolin Wang 6db96e5810 mmc: host: Introduce the request_atomic() for the host
The SD host controller can process one request in the atomic context if
the card is nonremovable, which means we can submit next request in the
irq hard handler when using the MMC host software queue to reduce the
latency. Thus this patch adds a new API request_atomic() for the host
controller, as well as adding support for host software queue to submit
a request by the new request_atomic() API.

Moreover there is an unusual case that the card is busy when trying to
send a command, and we can not polling the card status in interrupt
context by using request_atomic() to dispatch requests. Thus we should
queue a work to try again in the non-atomic context in case the host
releases the busy signal later.

Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/a344e27e506cb2329073cbd5cf65e15cc3cbeba9.1586744073.git.baolin.wang7@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-05-28 11:20:59 +02:00
..
acpi
asm-generic arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
clocksource
crypto
drm drm: fix trivial field description cut-and-paste error 2020-05-11 10:48:53 -07:00
dt-bindings
keys
kunit
kvm
linux mmc: host: Introduce the request_atomic() for the host 2020-05-28 11:20:59 +02:00
math-emu
media
misc
net RxRPC fixes 2020-05-22 15:53:30 -07:00
pcmcia
ras
rdma
scsi
soc net: dsa: ocelot: the MAC table on Felix is twice as large 2020-05-06 17:15:24 -07:00
sound ALSA: rawmidi: Fix racy buffer resize under concurrent accesses 2020-05-07 22:29:14 +02:00
target
trace RxRPC fixes 2020-05-22 15:53:30 -07:00
uapi usb: raw-gadget: support stalling/halting/wedging endpoints 2020-05-14 12:30:18 +03:00
vdso vdso/datapage: Use correct clock mode name in comment 2020-04-20 19:19:52 +02:00
video
xen