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Kajol Jain 1a8f0886a6 powerpc/perf/hv-24x7: Add cpu hotplug support
Patch here adds cpu hotplug functions to hv_24x7 pmu.
A new cpuhp_state "CPUHP_AP_PERF_POWERPC_HV_24x7_ONLINE" enum
is added.

The online callback function updates the cpumask only if its
empty. As the primary intention of adding hotplug support
is to designate a CPU to make HCALL to collect the
counter data.

The offline function test and clear corresponding cpu in a cpumask
and update cpumask to any other active cpu.

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200709051836.723765-2-kjain@linux.ibm.com
2020-07-16 13:12:41 +10:00
arch powerpc/perf/hv-24x7: Add cpu hotplug support 2020-07-16 13:12:41 +10:00
block block-5.8-2020-06-19 2020-06-19 13:11:26 -07:00
certs
crypto crypto: drbg - always try to free Jitter RNG instance 2020-06-15 17:38:54 +10:00
Documentation powerpc/pseries: remove cede offline state for CPUs 2020-07-16 13:12:34 +10:00
drivers powerpc/pmem: Initialize pmem device on newer hardware 2020-07-16 13:00:23 +10:00
fs A few fixes and small cleanups for tracing: 2020-06-20 13:17:47 -07:00
include powerpc/perf/hv-24x7: Add cpu hotplug support 2020-07-16 13:12:41 +10:00
init Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
ipc
kernel A few fixes and small cleanups for tracing: 2020-06-20 13:17:47 -07:00
lib Kbuild fixes for v5.8 2020-06-21 12:44:52 -07:00
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mm powerpc fixes for 5.8 #3 2020-06-21 10:02:53 -07:00
net An important follow-up for replica reads support that went into -rc1 2020-06-19 12:25:04 -07:00
samples Kbuild fixes for v5.8 2020-06-21 12:44:52 -07:00
scripts Kbuild fixes for v5.8 2020-06-21 12:44:52 -07:00
security selinux/stable-5.8 PR 20200621 2020-06-21 15:41:24 -07:00
sound ASoC: SOF: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
tools selftests/powerpc: Add FPU denormal test 2020-07-15 12:02:20 +10:00
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MAINTAINERS MAINTAINERS: Remove self from powerpc EEH 2020-07-15 11:07:19 +10:00
Makefile Linux 5.8-rc2 2020-06-21 15:45:29 -07:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.