Commit Graph

13 Commits

Author SHA1 Message Date
Robin Murphy
79d7c3dca9 perf/arm-cmn: Fix PMU instance naming
Although it's neat to avoid the suffix for the typical case of a
single PMU, it means systems with multiple CMN instances end up with
inconsistent naming. I think it also breaks perf tool's "uncore alias"
logic if the common instance prefix is also the full name of one.

Avoid any surprises by not trying to be clever and simply numbering
every instance, even when it might technically prove redundant.

Fixes: 0ba64770a2 ("perf: Add Arm CMN-600 PMU driver")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/649a2281233f193d59240b13ed91b57337c77b32.1611839564.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2021-01-28 20:14:45 +00:00
Andrew Klychkov
751d5b2741 Documentation: fix multiple typos found in the admin-guide subdirectory
Fix thirty five typos in dm-integrity.rst, dm-raid.rst, dm-zoned.rst,
verity.rst, writecache.rst, tsx_async_abort.rst, md.rst, bttv.rst,
dvb_references.rst, frontend-cardlist.rst, gspca-cardlist.rst, ipu3.rst,
remote-controller.rst, mm/index.rst, numaperf.rst, userfaultfd.rst,
module-signing.rst, imx-ddr.rst, intel-speed-select.rst,
intel_pstate.rst, ramoops.rst, abi.rst, kernel.rst, vm.rst

Signed-off-by: Andrew Klychkov <andrew.a.klychkov@gmail.com>
Link: https://lore.kernel.org/r/20201204072848.GA49895@spblnx124.lan
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-12-08 10:27:56 -07:00
Robin Murphy
0ba64770a2 perf: Add Arm CMN-600 PMU driver
Initial driver for PMU event counting on the Arm CMN-600 interconnect.
CMN sports an obnoxiously complex distributed PMU system as part of
its debug and trace features, which can do all manner of things like
sampling, cross-triggering and generating CoreSight trace. This driver
covers the PMU functionality, plus the relevant aspects of watchpoints
for simply counting matching flits.

Tested-by: Tsahi Zidenberg <tsahee@amazon.com>
Tested-by: Tuan Phan <tuanphan@os.amperecomputing.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2020-09-28 18:50:20 +01:00
Randy Dunlap
251c99bb39 Documentation/admin-guide: arm-ccn: drop doubled word
Drop the doubled word "as".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20200704032020.21923-9-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-05 14:01:49 -06:00
Mauro Carvalho Chehab
2b008dc692 docs: perf: imx-ddr.rst: get rid of a warning
Documentation/admin-guide/perf/imx-ddr.rst:47: WARNING: Unexpected indentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/b27b54bd4f847032fd33313d6497ff320c0f3d78.1583250595.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-03-10 11:56:15 -06:00
Linus Torvalds
937d6eefc7 Here's the main documentation changes for 5.5:
- Various kerneldoc script enhancements.
 
  - More RST conversions; those are slowing down as we run out of things to
    convert, but we're a ways from done still.
 
  - Dan's "maintainer profile entry" work landed at last.  Now we just need
    to get maintainers to fill in the profiles...
 
  - A reworking of the parallel build setup to work better with a variety of
    systems (and to not take over huge systems entirely in particular).
 
  - The MAINTAINERS file is now converted to RST during the build.
    Hopefully nobody ever tries to print this thing, or they will need to
    load a lot of paper.
 
  - A script and documentation making it easy for maintainers to add Link:
    tags at commit time.
 
 Also included is the removal of a bunch of spurious CR characters.
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 iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAl3j5B0PHGNvcmJldEBs
 d24ubmV0AAoJEBdDWhNsDH5YtBcH/jIN2cO8/0YW2rjVT+1G6ytSdFUKx5WJ/lpf
 5uBeCvuCeYhtCB6+BgnXvjykJ7jDW11/NJNjWqz/gsvD5l5FJK1rXarI/oz2Klyi
 kcPtDmBF/ki4wz9qXzEpa0vg8LXdjeys50S1vE75qCzxZoPP7YjuRbPnLrlIJukv
 JbDVi4p9kxgeHfRB4+BHOe5rFwA3mMmaxKNIX34Y+UUO2KZ0g/yUi1bAaQwQAdt+
 PsORmkVQ8Puh3K9xRIr7dYlcWBlBiPqzYdvDgTVxSjrxdK6wjYjSgVk2VjC5MBUN
 mTSTWgyfsIcD/76/s8tq7ZRl2fw+SkCSkFo79Rb/hJwDTb7Vnng=
 =LPBr
 -----END PGP SIGNATURE-----

Merge tag 'docs-5.5a' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "Here are the main documentation changes for 5.5:

   - Various kerneldoc script enhancements.

   - More RST conversions; those are slowing down as we run out of
     things to convert, but we're a ways from done still.

   - Dan's "maintainer profile entry" work landed at last. Now we just
     need to get maintainers to fill in the profiles...

   - A reworking of the parallel build setup to work better with a
     variety of systems (and to not take over huge systems entirely in
     particular).

   - The MAINTAINERS file is now converted to RST during the build.
     Hopefully nobody ever tries to print this thing, or they will need
     to load a lot of paper.

   - A script and documentation making it easy for maintainers to add
     Link: tags at commit time.

  Also included is the removal of a bunch of spurious CR characters"

* tag 'docs-5.5a' of git://git.lwn.net/linux: (91 commits)
  docs: remove a bunch of stray CRs
  docs: fix up the maintainer profile document
  libnvdimm, MAINTAINERS: Maintainer Entry Profile
  Maintainer Handbook: Maintainer Entry Profile
  MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile
  docs, parallelism: Rearrange how jobserver reservations are made
  docs, parallelism: Do not leak blocking mode to other readers
  docs, parallelism: Fix failure path and add comment
  Documentation: Remove bootmem_debug from kernel-parameters.txt
  Documentation: security: core.rst: fix warnings
  Documentation/process/howto/kokr: Update for 4.x -> 5.x versioning
  Documentation/translation: Use Korean for Korean translation title
  docs/memory-barriers.txt: Remove remaining references to mmiowb()
  docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs thread
  docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O section
  Documentation/kokr: Kill all references to mmiowb()
  docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" section
  docs: Add initial documentation for devfreq
  Documentation: Document how to get links with git am
  docs: Add request_irq() documentation
  ...
2019-12-02 11:51:02 -08:00
Joakim Zhang
ed0207a33a docs/perf: Add AXI ID filter capabilities information
Add capabilities information for AXI ID filter.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-11-04 16:27:34 +00:00
Joakim Zhang
76d835fcd4 docs/perf: Add explanation for DDR_CAP_AXI_ID_FILTER_ENHANCED quirk
Add explanation for DDR_CAP_AXI_ID_FILTER_ENHANCED quirk.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
[will: Simplified wording]
Signed-off-by: Will Deacon <will@kernel.org>
2019-11-04 16:27:13 +00:00
Ganapatrao Prabhakerrao Kulkarni
030f6f84e5 Documentation: perf: Update documentation for ThunderX2 PMU uncore driver
Add documentation for Cavium Coherent Processor Interconnect (CCPI2) PMU.

Signed-off-by: Ganapatrao Prabhakerrao Kulkarni <gkulkarni@marvell.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-10-29 10:08:46 +00:00
Adam Zerella
0522e130b0 docs: perf: Add imx-ddr to documentation index
Sphinx is currently outputting a warning where
the file 'imx-ddr.rst' is not included in the
documentation index. Additionally, the code
highlighting and doc formatting can be slightly
improved.

Signed-off-by: Adam Zerella <adam.zerella@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-01 07:11:53 -06:00
Joakim Zhang
3724e186fe docs/perf: Add documentation for the i.MX8 DDR PMU
Add some documentation describing the DDR PMU residing in the Freescale
i.MDX SoC and its perf driver implementation in Linux.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-28 14:32:00 +01:00
Mauro Carvalho Chehab
7e042736fa docs: add SPDX tags to new index files
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 <mchehab+samsung@kernel.org>
2019-07-15 11:03:03 -03:00
Mauro Carvalho Chehab
59809fe882 docs: perf: move to the admin-guide
The perf infrastructure is used for userspace to track issues.
At least a good part of what's described here is related to
it.

So, add it to the admin-guide.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15 09:20:27 -03:00