linux-toradex.git/Documentation/driver-api/nvdimm, branch v5.12

docs: add some new files to their respective index.rst files

2020-09-10T16:48:20+00:00

There were some new file additions for Kernel 5.7 and 5.8
that weren't added at the corresponding index file.

Signed-off-by: Mauro Carvalho Chehab 
Link: https://lore.kernel.org/r/9fd4d04f0d122ff38b5342a0098d99cc2f546652.1599660067.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet

Merge tag 'libnvdimm-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2020-08-11T17:59:19+00:00

Pull libnvdimm updayes from Vishal Verma:
 "You'd normally receive this pull request from Dan Williams, but he's
  busy watching a newborn (Congrats Dan!), so I'm watching libnvdimm
  this cycle.

  This adds a new feature in libnvdimm - 'Runtime Firmware Activation',
  and a few small cleanups and fixes in libnvdimm and DAX. I'd
  originally intended to make separate topic-based pull requests - one
  for libnvdimm, and one for DAX, but some of the DAX material fell out
  since it wasn't quite ready.

  Summary:

   - add 'Runtime Firmware Activation' support for NVDIMMs that
     advertise the relevant capability

   - misc libnvdimm and DAX cleanups"

* tag 'libnvdimm-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm/security: ensure sysfs poll thread woke up and fetch updated attr
  libnvdimm/security: the 'security' attr never show 'overwrite' state
  libnvdimm/security: fix a typo
  ACPI: NFIT: Fix ARS zero-sized allocation
  dax: Fix incorrect argument passed to xas_set_err()
  ACPI: NFIT: Add runtime firmware activate support
  PM, libnvdimm: Add runtime firmware activation support
  libnvdimm: Convert to DEVICE_ATTR_ADMIN_RO()
  drivers/dax: Expand lock scope to cover the use of addresses
  fs/dax: Remove unused size parameter
  dax: print error message by pr_info() in __generic_fsdax_supported()
  driver-core: Introduce DEVICE_ATTR_ADMIN_{RO,RW}
  tools/testing/nvdimm: Emulate firmware activation commands
  tools/testing/nvdimm: Prepare nfit_ctl_test() for ND_CMD_CALL emulation
  tools/testing/nvdimm: Add command debug messages
  tools/testing/nvdimm: Cleanup dimm index passing
  ACPI: NFIT: Define runtime firmware activation commands
  ACPI: NFIT: Move bus_dsm_mask out of generic nvdimm_bus_descriptor
  libnvdimm: Validate command family indices

PM, libnvdimm: Add runtime firmware activation support

2020-07-29T01:28:32+00:00

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 
Cc: Ira Weiny 
Cc: Len Brown 
Cc: Jonathan Corbet 
Cc: Dave Jiang 
Cc: Vishal Verma 
Reported-by: kernel test robot 
Co-developed-by: "Rafael J. Wysocki" 
Signed-off-by: "Rafael J. Wysocki" 
Signed-off-by: Dan Williams 
Signed-off-by: Vishal Verma

Documentation/driver-api: nvdimm: drop doubled word

2020-07-13T17:18:49+00:00

Drop the doubled word "to".

Signed-off-by: Randy Dunlap 
Acked-by: Ira Weiny 
Link: https://lore.kernel.org/r/20200704034502.17199-14-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet

Replace HTTP links with HTTPS ones: Documentation/driver-api

2020-06-26T17:09:04+00:00

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov 
Link: https://lore.kernel.org/r/20200621133512.46311-1-grandmaster@al2klimov.de
Signed-off-by: Jonathan Corbet

doc: nvdimm: remove reference to non-existent CONFIG_NFIT_TEST

2020-04-28T18:46:07+00:00

The test driver is in tools/testing/nvdimm and cannot be selected by a
config option.

Signed-off-by: Michal Suchanek 
Link: https://lore.kernel.org/r/20200415211654.10827-1-msuchanek@suse.de
Signed-off-by: Jonathan Corbet

docs: don't use nested tables

2019-07-15T14:03:04+00:00

Nested tables aren't supported for pdf output on Sphinx 1.7.9:

	admin-guide/laptops/sonypi:: nested tables are not yet implemented.
	admin-guide/laptops/toshiba_haps:: nested tables are not yet implemented.
	driver-api/nvdimm/btt:: nested tables are not yet implemented.
	s390/debugging390:: nested tables are not yet implemented.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Andy Shevchenko  # laptops

docs: add SPDX tags to new index files

2019-07-15T14:03:03+00:00

All those new files I added are under GPL v2.0 license.

Add the corresponding SPDX headers to them.

Signed-off-by: Mauro Carvalho Chehab

docs: nvdimm: add it to the driver-api book

2019-07-15T12:20:27+00:00

The descriptions here are from Kernel driver's PoV.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Dan Williams