mbox series

[v2,0/4] cppc_cpufreq: fix, clarify and improve support

Message ID 20201214123823.3949-1-ionela.voinescu@arm.com
Headers show
Series cppc_cpufreq: fix, clarify and improve support | expand

Message

Ionela Voinescu Dec. 14, 2020, 12:38 p.m. UTC
Hi guys,

I'm sending v2 of some of the patches at [1] in light of the discussions
at [2].

v2:
 - Patches 1-3 are trivial rebase on linux next 20201211, with conflicts
   fixed after eliminating what previously was "[PATCH 4/8] cppc_cpufreq:
   replace per-cpu structures with lists." Therefore, I have kept
   Viresh's acks.

 - Patch 4 is a merge between:
     - [PATCH 4/8] cppc_cpufreq: replace per-cpu structures with lists
     - [PATCH] cppc_cpufreq: optimise memory allocation for HW and NONE
       coordination
   both found at [1].

   This functionality was introducing the problem at [2] and it's fixed
   in this version by bailing out of driver registration if a _CPC entry
   is not found for a CPU.

   Yousaf, it would be great if you can test this and make sure it
   matches your expectations.

   Rafael, Viresh if you think this last patch introduces too many
   changes, you can skip it for 5.11 which is around the corner and
   have more time for review for 5.12. I've added more eyes in the review
   list.


All patches are based on linux next 20201211 after patch at [3] is
applied.

[1] https://lore.kernel.org/linux-pm/20201105125524.4409-1-ionela.voinescu@arm.com/#t
[2] https://lore.kernel.org/linux-pm/20201210142139.20490-1-yousaf.kaukab@suse.com/
[3] https://lore.kernel.org/linux-pm/20201214120740.10948-1-ionela.voinescu@arm.com/

Ionela Voinescu (4):
  cppc_cpufreq: use policy->cpu as driver of frequency setting
  cppc_cpufreq: clarify support for coordination types
  cppc_cpufreq: expose information on frequency domains
  cppc_cpufreq: replace per-cpu data array with a list

 .../ABI/testing/sysfs-devices-system-cpu      |   3 +-
 drivers/acpi/cppc_acpi.c                      | 141 ++++++------
 drivers/cpufreq/cppc_cpufreq.c                | 204 ++++++++++--------
 include/acpi/cppc_acpi.h                      |   6 +-
 4 files changed, 181 insertions(+), 173 deletions(-)

Comments

Rafael J. Wysocki Dec. 15, 2020, 6:21 p.m. UTC | #1
On Mon, Dec 14, 2020 at 5:14 PM Mian Yousaf Kaukab <ykaukab@suse.de> wrote:
>
> On Mon, Dec 14, 2020 at 12:38:19PM +0000, Ionela Voinescu wrote:
> > Hi guys,
> >
> > I'm sending v2 of some of the patches at [1] in light of the discussions
> > at [2].
> >
> > v2:
> >  - Patches 1-3 are trivial rebase on linux next 20201211, with conflicts
> >    fixed after eliminating what previously was "[PATCH 4/8] cppc_cpufreq:
> >    replace per-cpu structures with lists." Therefore, I have kept
> >    Viresh's acks.
> >
> >  - Patch 4 is a merge between:
> >      - [PATCH 4/8] cppc_cpufreq: replace per-cpu structures with lists
> >      - [PATCH] cppc_cpufreq: optimise memory allocation for HW and NONE
> >        coordination
> >    both found at [1].
> >
> >    This functionality was introducing the problem at [2] and it's fixed
> >    in this version by bailing out of driver registration if a _CPC entry
> >    is not found for a CPU.
> >
> >    Yousaf, it would be great if you can test this and make sure it
> >    matches your expectations.
> >
> >    Rafael, Viresh if you think this last patch introduces too many
> >    changes, you can skip it for 5.11 which is around the corner and
> >    have more time for review for 5.12. I've added more eyes in the review
> >    list.
> >
> >
> > All patches are based on linux next 20201211 after patch at [3] is
> > applied.
> >
> > [1] https://lore.kernel.org/linux-pm/20201105125524.4409-1-ionela.voinescu@arm.com/#t
> > [2] https://lore.kernel.org/linux-pm/20201210142139.20490-1-yousaf.kaukab@suse.com/
> > [3] https://lore.kernel.org/linux-pm/20201214120740.10948-1-ionela.voinescu@arm.com/
> >
> > Ionela Voinescu (4):
> >   cppc_cpufreq: use policy->cpu as driver of frequency setting
> >   cppc_cpufreq: clarify support for coordination types
> >   cppc_cpufreq: expose information on frequency domains
> >   cppc_cpufreq: replace per-cpu data array with a list
> >
> >  .../ABI/testing/sysfs-devices-system-cpu      |   3 +-
> >  drivers/acpi/cppc_acpi.c                      | 141 ++++++------
> >  drivers/cpufreq/cppc_cpufreq.c                | 204 ++++++++++--------
> >  include/acpi/cppc_acpi.h                      |   6 +-
> >  4 files changed, 181 insertions(+), 173 deletions(-)
>
> For the whole series:
> Tested-by: Mian Yousaf Kaukab <ykaukab@suse.de>

All patches applied as 5.11-rc material, thanks!
Ionela Voinescu Dec. 15, 2020, 11:31 p.m. UTC | #2
On Tuesday 15 Dec 2020 at 19:21:01 (+0100), Rafael J. Wysocki wrote:
> On Mon, Dec 14, 2020 at 5:14 PM Mian Yousaf Kaukab <ykaukab@suse.de> wrote:
> >
> > On Mon, Dec 14, 2020 at 12:38:19PM +0000, Ionela Voinescu wrote:
> > > Hi guys,
> > >
> > > I'm sending v2 of some of the patches at [1] in light of the discussions
> > > at [2].
> > >
> > > v2:
> > >  - Patches 1-3 are trivial rebase on linux next 20201211, with conflicts
> > >    fixed after eliminating what previously was "[PATCH 4/8] cppc_cpufreq:
> > >    replace per-cpu structures with lists." Therefore, I have kept
> > >    Viresh's acks.
> > >
> > >  - Patch 4 is a merge between:
> > >      - [PATCH 4/8] cppc_cpufreq: replace per-cpu structures with lists
> > >      - [PATCH] cppc_cpufreq: optimise memory allocation for HW and NONE
> > >        coordination
> > >    both found at [1].
> > >
> > >    This functionality was introducing the problem at [2] and it's fixed
> > >    in this version by bailing out of driver registration if a _CPC entry
> > >    is not found for a CPU.
> > >
> > >    Yousaf, it would be great if you can test this and make sure it
> > >    matches your expectations.
> > >
> > >    Rafael, Viresh if you think this last patch introduces too many
> > >    changes, you can skip it for 5.11 which is around the corner and
> > >    have more time for review for 5.12. I've added more eyes in the review
> > >    list.
> > >
> > >
> > > All patches are based on linux next 20201211 after patch at [3] is
> > > applied.
> > >
> > > [1] https://lore.kernel.org/linux-pm/20201105125524.4409-1-ionela.voinescu@arm.com/#t
> > > [2] https://lore.kernel.org/linux-pm/20201210142139.20490-1-yousaf.kaukab@suse.com/
> > > [3] https://lore.kernel.org/linux-pm/20201214120740.10948-1-ionela.voinescu@arm.com/
> > >
> > > Ionela Voinescu (4):
> > >   cppc_cpufreq: use policy->cpu as driver of frequency setting
> > >   cppc_cpufreq: clarify support for coordination types
> > >   cppc_cpufreq: expose information on frequency domains
> > >   cppc_cpufreq: replace per-cpu data array with a list
> > >
> > >  .../ABI/testing/sysfs-devices-system-cpu      |   3 +-
> > >  drivers/acpi/cppc_acpi.c                      | 141 ++++++------
> > >  drivers/cpufreq/cppc_cpufreq.c                | 204 ++++++++++--------
> > >  include/acpi/cppc_acpi.h                      |   6 +-
> > >  4 files changed, 181 insertions(+), 173 deletions(-)
> >
> > For the whole series:
> > Tested-by: Mian Yousaf Kaukab <ykaukab@suse.de>
> 
> All patches applied as 5.11-rc material, thanks!

Many thanks, guys!

Ionela.