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| author | Kajol Jain <kjain@linux.ibm.com> | 2020-07-09 08:18:35 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-16 06:12:41 +0300 |
| commit | 1a8f0886a6008c98a926bdeca49f2ef33015a491 (patch) | |
| tree | fc833fcf5de36958f781acd0745ede54498b35a2 /include/linux/ftrace.h | |
| parent | e978a3ccaa714b5ff125857d2cbecbb6fdf6c094 (diff) | |
| download | linux-1a8f0886a6008c98a926bdeca49f2ef33015a491.tar.xz | |
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
Diffstat (limited to 'include/linux/ftrace.h')
0 files changed, 0 insertions, 0 deletions