linux.git/drivers/hwmon/occ, branch v5.17.6 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Merge branch 'akpm' (patches from Andrew) 2021-11-06T21:08:17+00:00 Linus Torvalds torvalds@linux-foundation.org 2021-11-06T21:08:17+00:00 512b7931ad0561ffe14265f9ff554a3c081b476b Merge misc updates from Andrew Morton: "257 patches. Subsystems affected by this patch series: scripts, ocfs2, vfs, and mm (slab-generic, slab, slub, kconfig, dax, kasan, debug, pagecache, gup, swap, memcg, pagemap, mprotect, mremap, iomap, tracing, vmalloc, pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, tools, memblock, oom-kill, hugetlbfs, migration, thp, readahead, nommu, ksm, vmstat, madvise, memory-hotplug, rmap, zsmalloc, highmem, zram, cleanups, kfence, and damon)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (257 commits) mm/damon: remove return value from before_terminate callback mm/damon: fix a few spelling mistakes in comments and a pr_debug message mm/damon: simplify stop mechanism Docs/admin-guide/mm/pagemap: wordsmith page flags descriptions Docs/admin-guide/mm/damon/start: simplify the content Docs/admin-guide/mm/damon/start: fix a wrong link Docs/admin-guide/mm/damon/start: fix wrong example commands mm/damon/dbgfs: add adaptive_targets list check before enable monitor_on mm/damon: remove unnecessary variable initialization Documentation/admin-guide/mm/damon: add a document for DAMON_RECLAIM mm/damon: introduce DAMON-based Reclamation (DAMON_RECLAIM) selftests/damon: support watermarks mm/damon/dbgfs: support watermarks mm/damon/schemes: activate schemes based on a watermarks mechanism tools/selftests/damon: update for regions prioritization of schemes mm/damon/dbgfs: support prioritization weights mm/damon/vaddr,paddr: support pageout prioritization mm/damon/schemes: prioritize regions within the quotas mm/damon/selftests: support schemes quotas mm/damon/dbgfs: support quotas of schemes ... 
Merge misc updates from Andrew Morton:
 "257 patches.

  Subsystems affected by this patch series: scripts, ocfs2, vfs, and
  mm (slab-generic, slab, slub, kconfig, dax, kasan, debug, pagecache,
  gup, swap, memcg, pagemap, mprotect, mremap, iomap, tracing, vmalloc,
  pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, tools,
  memblock, oom-kill, hugetlbfs, migration, thp, readahead, nommu, ksm,
  vmstat, madvise, memory-hotplug, rmap, zsmalloc, highmem, zram,
  cleanups, kfence, and damon)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (257 commits)
  mm/damon: remove return value from before_terminate callback
  mm/damon: fix a few spelling mistakes in comments and a pr_debug message
  mm/damon: simplify stop mechanism
  Docs/admin-guide/mm/pagemap: wordsmith page flags descriptions
  Docs/admin-guide/mm/damon/start: simplify the content
  Docs/admin-guide/mm/damon/start: fix a wrong link
  Docs/admin-guide/mm/damon/start: fix wrong example commands
  mm/damon/dbgfs: add adaptive_targets list check before enable monitor_on
  mm/damon: remove unnecessary variable initialization
  Documentation/admin-guide/mm/damon: add a document for DAMON_RECLAIM
  mm/damon: introduce DAMON-based Reclamation (DAMON_RECLAIM)
  selftests/damon: support watermarks
  mm/damon/dbgfs: support watermarks
  mm/damon/schemes: activate schemes based on a watermarks mechanism
  tools/selftests/damon: update for regions prioritization of schemes
  mm/damon/dbgfs: support prioritization weights
  mm/damon/vaddr,paddr: support pageout prioritization
  mm/damon/schemes: prioritize regions within the quotas
  mm/damon/selftests: support schemes quotas
  mm/damon/dbgfs: support quotas of schemes
  ...
mm: move kvmalloc-related functions to slab.h 2021-11-06T20:30:32+00:00 Matthew Wilcox (Oracle) willy@infradead.org 2021-11-05T20:35:07+00:00 8587ca6f34152ea650bad4b2db68456601159024 Not all files in the kernel should include mm.h. Migrating callers from kmalloc to kvmalloc is easier if the kvmalloc functions are in slab.h. [akpm@linux-foundation.org: move the new kvrealloc() also] [akpm@linux-foundation.org: drivers/hwmon/occ/p9_sbe.c needs slab.h] Link: https://lkml.kernel.org/r/20210622215757.3525604-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Not all files in the kernel should include mm.h.  Migrating callers from
kmalloc to kvmalloc is easier if the kvmalloc functions are in slab.h.

[akpm@linux-foundation.org: move the new kvrealloc() also]
[akpm@linux-foundation.org: drivers/hwmon/occ/p9_sbe.c needs slab.h]

Link: https://lkml.kernel.org/r/20210622215757.3525604-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge tag 'fsi-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi into char-misc-next 2021-10-22T07:45:59+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2021-10-22T07:45:59+00:00 b1f4c00e4175a89353309fb22c291d16defc4ac7 Joel writes: FSI changes for v5.16 - SBEFIFO usersapce interfaces to perform FFDC (First Failure Data Capture) and detect timeouts - A fix to handle multiple messages in flight * tag 'fsi-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi: fsi: sbefifo: Use interruptible mutex locking fsi: sbefifo: Add sysfs file indicating a timeout error docs: ABI: testing: Document the SBEFIFO timeout interface hwmon: (occ) Provide the SBEFIFO FFDC in binary sysfs docs: ABI: testing: Document the OCC hwmon FFDC binary interface fsi: occ: Store the SBEFIFO FFDC in the user response buffer fsi: occ: Use a large buffer for responses hwmon: (occ) Remove sequence numbering and checksum calculation fsi: occ: Force sequence numbering per OCC 
Joel writes:

FSI changes for v5.16

 - SBEFIFO usersapce interfaces to perform FFDC (First Failure
   Data Capture) and detect timeouts

 - A fix to handle multiple messages in flight

* tag 'fsi-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi:
  fsi: sbefifo: Use interruptible mutex locking
  fsi: sbefifo: Add sysfs file indicating a timeout error
  docs: ABI: testing: Document the SBEFIFO timeout interface
  hwmon: (occ) Provide the SBEFIFO FFDC in binary sysfs
  docs: ABI: testing: Document the OCC hwmon FFDC binary interface
  fsi: occ: Store the SBEFIFO FFDC in the user response buffer
  fsi: occ: Use a large buffer for responses
  hwmon: (occ) Remove sequence numbering and checksum calculation
  fsi: occ: Force sequence numbering per OCC
hwmon: (occ) Provide the SBEFIFO FFDC in binary sysfs 2021-10-21T23:24:33+00:00 Eddie James eajames@linux.ibm.com 2021-10-19T20:53:07+00:00 5027a34a575e79ac225f5f3e710491e4c372c44a Save any FFDC provided by the OCC driver, and provide it to userspace through a binary sysfs entry. Notify userspace pollers when there is an error too. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211019205307.36946-5-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au> 
Save any FFDC provided by the OCC driver, and provide it to userspace
through a binary sysfs entry. Notify userspace pollers when there is an
error too.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211019205307.36946-5-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
hwmon: (occ) Remove sequence numbering and checksum calculation 2021-10-15T04:39:26+00:00 Eddie James eajames@linux.ibm.com 2021-07-21T19:02:30+00:00 908dbf0242e21dd95c69a1b0935814cd1abfc134 Checksumming of the request and sequence numbering is now done in the OCC interface driver in order to keep unique sequence numbers. So remove those in the hwmon driver. Also, add the command length to the send_cmd function pointer, since the checksum must be placed in the last two bytes of the command. The submit interface must receive the exact size of the command - previously it could be rounded to the nearest 8 bytes with no consequence. Signed-off-by: Eddie James <eajames@linux.ibm.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210721190231.117185-3-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au> 
Checksumming of the request and sequence numbering is now done in the
OCC interface driver in order to keep unique sequence numbers. So
remove those in the hwmon driver. Also, add the command length to the
send_cmd function pointer, since the checksum must be placed in the
last two bytes of the command. The submit interface must receive the
exact size of the command - previously it could be rounded to the
nearest 8 bytes with no consequence.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210721190231.117185-3-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
hwmon: (occ) Fix P10 VRM temp sensors 2021-10-02T11:35:09+00:00 Eddie James eajames@linux.ibm.com 2021-09-29T15:36:04+00:00 ffa2600044979aff4bd6238edb9af815a47d7c32 The P10 (temp sensor version 0x10) doesn't do the same VRM status reporting that was used on P9. It just reports the temperature, so drop the check for VRM fru type in the sysfs show function, and don't set the name to "alarm". Fixes: db4919ec86 ("hwmon: (occ) Add new temperature sensor type") Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20210929153604.14968-1-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
The P10 (temp sensor version 0x10) doesn't do the same VRM status
reporting that was used on P9. It just reports the temperature, so
drop the check for VRM fru type in the sysfs show function, and don't
set the name to "alarm".

Fixes: db4919ec86 ("hwmon: (occ) Add new temperature sensor type")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210929153604.14968-1-eajames@linux.ibm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Merge tag 'fsi-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi into char-misc-next 2021-06-10T06:47:18+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2021-06-10T06:47:18+00:00 800370b05b76c5a6111a97d6f41c9986a29e38a3 Joel writes: FSI changes for v5.14 - Bug fixes for the OCC, SCOM and SBEFIFO drivers - Performance fix for aspeed fsi master - Small fixes from the mailing lists * tag 'fsi-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi: fsi/sbefifo: Fix reset timeout fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE fsi: master-ast-cf: Remove redundant error printing in fsi_master_acf_probe() fsi: Aspeed: Reduce poll timeout fsi: aspeed: convert to devm_platform_ioremap_resource hwmon: (occ) Print response status in first poll error message hwmon: (occ) Start sequence number at one fsi: occ: Log error for checksum failure fsi: occ: Don't accept response from un-initialized OCC fsi: scom: Remove retries fsi: scom: Reset the FSI2PIB engine for any error fsi: aspeed: Emit fewer barriers in opb operations fsi: core: Fix return of error values on failures fsi: Add missing MODULE_DEVICE_TABLE 
Joel writes:

FSI changes for v5.14

 - Bug fixes for the OCC, SCOM and SBEFIFO drivers

 - Performance fix for aspeed fsi master

 - Small fixes from the mailing lists

* tag 'fsi-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi:
  fsi/sbefifo: Fix reset timeout
  fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
  fsi: master-ast-cf: Remove redundant error printing in fsi_master_acf_probe()
  fsi: Aspeed: Reduce poll timeout
  fsi: aspeed: convert to devm_platform_ioremap_resource
  hwmon: (occ) Print response status in first poll error message
  hwmon: (occ) Start sequence number at one
  fsi: occ: Log error for checksum failure
  fsi: occ: Don't accept response from un-initialized OCC
  fsi: scom: Remove retries
  fsi: scom: Reset the FSI2PIB engine for any error
  fsi: aspeed: Emit fewer barriers in opb operations
  fsi: core: Fix return of error values on failures
  fsi: Add missing MODULE_DEVICE_TABLE
hwmon: (occ) Print response status in first poll error message 2021-06-04T04:59:58+00:00 Eddie James eajames@linux.ibm.com 2021-02-09T17:12:35+00:00 38483e8fed80ba21d8736a76043a32b0110a387a In order to better debug problems starting up the driver, print the response status from the OCC in the error logged when the first poll command fails. Signed-off-by: Eddie James <eajames@linux.ibm.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210209171235.20624-5-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au> 
In order to better debug problems starting up the driver, print
the response status from the OCC in the error logged when the first
poll command fails.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210209171235.20624-5-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
hwmon: (occ) Start sequence number at one 2021-06-04T04:59:58+00:00 Eddie James eajames@linux.ibm.com 2021-02-09T17:12:34+00:00 75028ef4583091c355ac78ef03b64fc8f1f87909 Initialize the sequence number at one, rather than zero, in order to prevent false matches with the zero-initialized OCC SRAM buffer before the OCC is fully initialized. Signed-off-by: Eddie James <eajames@linux.ibm.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210209171235.20624-4-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au> 
Initialize the sequence number at one, rather than zero, in order
to prevent false matches with the zero-initialized OCC SRAM
buffer before the OCC is fully initialized.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210209171235.20624-4-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
hwmon: (occ) Fix poll rate limiting 2021-05-10T13:27:33+00:00 Eddie James eajames@linux.ibm.com 2021-04-29T15:13:36+00:00 5216dff22dc2bbbbe6f00335f9fd2879670e753b The poll rate limiter time was initialized at zero. This breaks the comparison in time_after if jiffies is large. Switch to storing the next update time rather than the previous time, and initialize the time when the device is probed. Fixes: c10e753d43eb ("hwmon (occ): Add sensor types and versions") Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20210429151336.18980-1-eajames@linux.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> 
The poll rate limiter time was initialized at zero. This breaks the
comparison in time_after if jiffies is large. Switch to storing the
next update time rather than the previous time, and initialize the
time when the device is probed.

Fixes: c10e753d43eb ("hwmon (occ): Add sensor types and versions")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210429151336.18980-1-eajames@linux.ibm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>