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48001ea50d
linux/Documentation/driver-api
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Dan Williams 48001ea50d PM, libnvdimm: Add runtime firmware activation support 
Abstract platform specific mechanics for nvdimm firmware activation
behind a handful of generic ops. At the bus level ->activate_state()
indicates the unified state (idle, busy, armed) of all DIMMs on the bus,
and ->capability() indicates the system state expectations for activate.
At the DIMM level ->activate_state() indicates the per-DIMM state,
->activate_result() indicates the outcome of the last activation
attempt, and ->arm() attempts to transition the DIMM from 'idle' to
'armed'.

A new hibernate_quiet_exec() facility is added to support firmware
activation in an OS defined system quiesce state. It leverages the fact
that the hibernate-freeze state wants to assert that a memory
hibernation snapshot can be taken. This is in contrast to a platform
firmware defined quiesce state that may forcefully quiet the memory
controller independent of whether an individual device-driver properly
supports hibernate-freeze.

The libnvdimm sysfs interface is extended to support detection of a
firmware activate capability. The mechanism supports enumeration and
triggering of firmware activate, optionally in the
hibernate_quiet_exec() context.

[rafael: hibernate_quiet_exec() proposal]
[vishal: fix up sparse warning, grammar in Documentation/]

Cc: Pavel Machek <pavel@ucw.cz>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Co-developed-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
2020-07-28 19:28:32 -06:00
..
80211 docs: prevent warnings due to autosectionlabel 2020-03-20 17:01:29 -06:00
acpi Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
backlight docs: lp855x-driver.rst: add it to the driver-api book 2019-07-15 11:03:02 -03:00
dmaengine This has been a busy cycle for documentation work. Highlights include: 2020-03-30 12:45:23 -07:00
driver-model A handful of late-arriving docs fixes, along with a patch changing a lot of 2020-06-10 14:12:15 -07:00
early-userspace docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
firmware Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-30 16:13:08 -07:00
fpga docs: fpga: document programming fpgas using regions 2018-10-16 11:13:50 +02:00
gpio gpiolib: Add support for GPIO lookup by line name 2020-05-18 10:12:42 +02:00
i3c docs: driver-api: Add I3C documentation 2018-11-12 10:33:49 +01:00
iio iio: core: drop devm_iio_trigger_free() API call 2020-04-19 16:56:37 +01:00
md docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
media Documentation: media: convert to use i2c_new_client_device() 2020-06-19 09:20:25 +02:00
mei mei: docs: update mei documentation 2019-06-06 16:51:37 +02:00
memory-devices docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
mmc docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
mtd docs: mtd: Update spi nor reference driver 2019-09-06 08:51:39 -06:00
nfc docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
nvdimm PM, libnvdimm: Add runtime firmware activation support 2020-07-28 19:28:32 -06:00
pci Documentation: Kill all references to mmiowb() 2019-04-08 12:00:45 +01:00
phy docs: phy: Drop duplicate 'be made' 2019-07-26 08:15:26 -06:00
pm Merge branch 'pm-cpuidle' 2020-06-01 15:19:30 +02:00
rapidio docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
serial tty: n_gsm: add ioctl to map serial device to mux'ed tty 2019-09-04 12:43:54 +02:00
soundwire soundwire: bus: rename sdw_bus_master_add/delete, add arguments 2020-05-19 12:44:34 +05:30
thermal doc: thermal: add cpu-idle-cooling to index tree 2020-05-05 09:57:14 -06:00
usb Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
xilinx docs: driver-api: add xilinx driver API documentation 2019-07-15 11:03:02 -03:00
basics.rst docs: Do not seek comments in kernel/rcu/tree_plugin.h 2019-05-24 14:23:40 -06:00
clk.rst docs: clk: fix struct syntax 2019-06-07 11:35:15 -06:00
component.rst drm/doc: document recommended component helper usage 2019-02-19 12:22:24 +01:00
connector.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
console.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
dcdbas.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
devfreq.rst docs: Add initial documentation for devfreq 2019-11-19 13:16:53 -07:00
device_connection.rst Documentation: driver-api: fix device_connection.rst kernel-doc error 2018-04-27 17:17:34 -06:00
device_link.rst driver core: Add support for linking devices during device addition 2019-10-04 17:29:50 +02:00
device-io.rst Documentation: Kill all references to mmiowb() 2019-04-08 12:00:45 +01:00
dma-buf.rst dma-buf: Couple of documentation typo fixes 2020-04-20 17:00:34 -06:00
edac.rst
eisa.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
firewire.rst FireWire: add driver-api Introduction section 2018-09-06 09:41:16 -06:00
frame-buffer.rst
generic-counter.rst docs: driver-api: generic-counter: Update Count and Signal data types 2019-10-18 19:47:38 +01:00
hsi.rst
i2c.rst
index.rst media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
infiniband.rst RDMA/core: Remove FMR pool API 2020-06-02 20:32:53 -03:00
infrastructure.rst docs: No structured comments in kernel/dma/coherent.c 2019-10-01 08:43:21 -06:00
input.rst
interconnect.rst interconnect: Add interconnect_graph file to debugfs 2019-12-16 09:49:54 +02:00
io_ordering.rst Documentation: Add io_ordering.rst to driver-api manual 2020-03-10 11:33:19 -06:00
io-mapping.rst Documentation: Add io-mapping.rst to driver-api manual 2020-03-10 11:33:15 -06:00
ioctl.rst docs: move core-api/ioctl.rst to driver-api/ 2020-03-10 11:21:08 -06:00
ipmb.rst drivers: ipmi: Support raw i2c packet in IPMB 2019-12-11 13:21:36 -06:00
ipmi.rst docs: move IPMI.txt to the driver API book 2020-05-15 11:55:04 -06:00
isa.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
isapnp.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
libata.rst scsi: docs: convert scsi_eh.txt to ReST 2020-03-11 23:08:01 -04:00
lightnvm-pblk.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
men-chameleon-bus.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
message-based.rst
misc_devices.rst
miscellaneous.rst
mtdnand.rst mtd: rawnand: Stop using nand_release() 2020-05-31 10:53:40 +02:00
ntb.rst New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
nvmem.rst nvmem: core: add nvmem_device_find 2019-10-07 09:47:37 -07:00
parport-lowlevel.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
pinctl.rst docs/pinctrl: fix compile errors in example code 2019-07-29 00:20:09 +02:00
pps.rst docs: driver-api: add remaining converted dirs to it 2019-07-15 11:03:03 -03:00
pti_intel_mid.rst docs: driver-api: pti_intel_mid: Enable syntax highlighting for C code block 2019-10-18 09:40:13 -06:00
ptp.rst docs: driver-api: add remaining converted dirs to it 2019-07-15 11:03:03 -03:00
pwm.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
regulator.rst
rfkill.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
s390-drivers.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
scsi.rst scsi: target: add driver-api document 2018-04-20 19:14:40 -04:00
slimbus.rst slimbus: stream: add stream support 2018-07-07 17:25:23 +02:00
sm501.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
smsc_ece1099.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
sound.rst
spi.rst
switchtec.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
sync_file.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
target.rst docs: No structured comments in target_core_device.c 2019-05-24 15:01:30 -06:00
uio-howto.rst uio: Documentation: Add information on using uio_pdrv_genirq with DT 2019-09-04 13:42:43 +02:00
vfio-mediated-device.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
vfio.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
vme.rst
w1.rst docs: driver-api: address duplicate label warning 2020-04-07 13:41:34 -06:00
xillybus.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
zorro.rst docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00