diff options
| author | Kajol Jain <kjain@linux.ibm.com> | 2020-07-09 10:48:35 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-16 13:12:41 +1000 |
| commit | 1a8f0886a6008c98a926bdeca49f2ef33015a491 (patch) | |
| tree | fc833fcf5de36958f781acd0745ede54498b35a2 /arch/x86/boot | |
| parent | e978a3ccaa714b5ff125857d2cbecbb6fdf6c094 (diff) | |
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 'arch/x86/boot')
0 files changed, 0 insertions, 0 deletions