[PATCH 00/25] OMAP4: PM: suspend, CPU-hotplug and CPUilde support

Jean Pihet jean.pihet at newoldbits.com
Thu Sep 8 16:15:19 EDT 2011


Hi Santosh,

On Sun, Sep 4, 2011 at 3:54 PM, Santosh Shilimkar
<santosh.shilimkar at ti.com> wrote:
> This series adds OMAP4 MPUSS (MPU SubSystem) power management support for
> suspend (S2R), CPU hotplug and CPUidle.
>
> Most of these patches have been posted and reviewed earlier [1] on the list
> and have missed last couple of merge windows because of dependencies.
> New set of patches have diverged more and hence the series version
> continuity isn't maintained.
>
> Below are the main updates from previous versions.
> - Use of generic ARM suspend hooks instead of OMAP custom code.
> - Making use of common GIC code instead of OMAP custom code.
> - Use of generic CPU PM notifiers for CPUIDLE and suspend.
> - Use of CPU PM notifiers and hotplug notifiers for GIC extension.
> - PM support of OMAP4 HS devices.
> - Introduction of interconnect barriers as per the OMAP4 requirements.
>
> Special thanks to,
> - Kevin Hilman for the detailed reviews.
> - Russell for adding the L2 cache handling support to generic suspend.
> - Colin Cross for the generic CPU PM notifier patches.
> - Rajendra Nayak and Paul Walmsley for clock-domain sequencing series.
>
> Below series has dependency on Russell's L2 generic suspend support [2]
> and earlier posted CPU PM notifiers series [3].
> An integrated branch with these dependencies can be found here [4].
>
> The series is tested on OMAP4430 SDP for suspend, hotplug and CPUidle
> with OMAP4 GP and HS (secure) devices.
>
> The following changes since commit c6a389f123b9f68d605bb7e0f9b32ec1e3e14132:
>
>  Linux 3.1-rc4 (2011-08-28 21:16:01 -0700)
>
> are available in the git repository at:
>  git://gitorious.org/omap-sw-develoment/linux-omap-dev.git v3.1-rc4-omap4-mpuss-pm

Some comments have been sent on this patch set, otherwise OK after review.

FWIW:
Acked-by: Jean Pihet <j-pihet at ti.com>

Regards,
Jean

>
> Santosh Shilimkar (25):
>      ARM: mm: Add strongly ordered descriptor support.
>      OMAP4: Redefine mandatory barriers for OMAP to include interconnect barriers.
>      OMAP4: PM: Use custom omap_do_wfi() for suspend and default idle.
>      OMAP4: Remove un-used do_wfi() macro.
>      OMAP4: Use WARN_ON() instead of BUG_ON() with graceful exit
>      OMAP4: Export omap4_get_base*() rather than global address pointers
>      OMAP4: PM: Add SAR RAM support
>      OMAP4: PM: Keep static dep between MPUSS-EMIF and MPUSS-L3 and DUCATI-L3
>      OMAP4: PM: Avoid omap4_pm_init() on OMAP4430 ES1.0
>      OMAP4: PM: Initialise all the clockdomains to supported states
>      OMAP: Add Secure HAL and monitor mode API infrastructure.
>      OMAP: Add support to allocate the memory for secure RAM
>      OMAP4: PM: Add WakeupGen module as OMAP gic_arch_extn
>      OMAP4: PM: Add CPUX OFF mode support
>      OMAP4: Remove __INIT from omap_secondary_startup() to re-use it for hotplug.
>      OMAP4: PM: Program CPU1 to hit OFF when off-lined
>      OMAP4: PM: CPU1 wakeup workaround from Low power modes
>      OMAP4: suspend: Add MPUSS power domain RETENTION support
>      OMAP4: PM: Add WakeupGen and secure GIC low power support
>      OMAP4: PM: Add L2X0 cache lowpower support
>      OMAP4: PM: Add MPUSS power domain OSWR support
>      OMAP4: PM: Add power domain statistics support
>      OMAP4: PM: Add CPUidle support
>      OMAP4: cpuidle: Switch to gptimer from twd in deeper C-states.
>      OMAP3: CPUidle: Make use of CPU PM notifiers
>
>  arch/arm/include/asm/mach/map.h                    |    1 +
>  arch/arm/include/asm/pgtable.h                     |    3 +
>  arch/arm/mach-omap2/Kconfig                        |    1 +
>  arch/arm/mach-omap2/Makefile                       |   15 +-
>  arch/arm/mach-omap2/cpuidle34xx.c                  |    7 +
>  arch/arm/mach-omap2/cpuidle44xx.c                  |  206 ++++++++++
>  arch/arm/mach-omap2/include/mach/barriers.h        |   48 +++
>  arch/arm/mach-omap2/include/mach/omap-secure.h     |   57 +++
>  arch/arm/mach-omap2/include/mach/omap-wakeupgen.h  |   39 ++
>  arch/arm/mach-omap2/include/mach/omap4-common.h    |   70 +++-
>  arch/arm/mach-omap2/omap-headsmp.S                 |    5 -
>  arch/arm/mach-omap2/omap-hotplug.c                 |   14 +-
>  arch/arm/mach-omap2/omap-mpuss-lowpower.c          |  398 +++++++++++++++++++
>  arch/arm/mach-omap2/omap-secure.c                  |   81 ++++
>  arch/arm/mach-omap2/{omap44xx-smc.S => omap-smc.S} |   23 ++
>  arch/arm/mach-omap2/omap-smp.c                     |   38 ++
>  arch/arm/mach-omap2/omap-wakeupgen.c               |  403 ++++++++++++++++++++
>  arch/arm/mach-omap2/omap4-common.c                 |   93 +++++-
>  arch/arm/mach-omap2/omap4-sar-layout.h             |   50 +++
>  arch/arm/mach-omap2/pm.h                           |    1 +
>  arch/arm/mach-omap2/pm44xx.c                       |  155 ++++++++-
>  arch/arm/mach-omap2/sleep44xx.S                    |  385 +++++++++++++++++++
>  arch/arm/mm/mmu.c                                  |    8 +
>  arch/arm/plat-omap/common.c                        |    3 +
>  arch/arm/plat-omap/include/plat/omap44xx.h         |    1 +
>  arch/arm/plat-omap/include/plat/sram.h             |    1 +
>  arch/arm/plat-omap/sram.c                          |   47 ++-
>  27 files changed, 2104 insertions(+), 49 deletions(-)
>  create mode 100644 arch/arm/mach-omap2/cpuidle44xx.c
>  create mode 100644 arch/arm/mach-omap2/include/mach/barriers.h
>  create mode 100644 arch/arm/mach-omap2/include/mach/omap-secure.h
>  create mode 100644 arch/arm/mach-omap2/include/mach/omap-wakeupgen.h
>  create mode 100644 arch/arm/mach-omap2/omap-mpuss-lowpower.c
>  create mode 100644 arch/arm/mach-omap2/omap-secure.c
>  rename arch/arm/mach-omap2/{omap44xx-smc.S => omap-smc.S} (70%)
>  create mode 100644 arch/arm/mach-omap2/omap-wakeupgen.c
>  create mode 100644 arch/arm/mach-omap2/omap4-sar-layout.h
>  create mode 100644 arch/arm/mach-omap2/sleep44xx.S
>
> Regards
> Santosh
>
> [1] http://www.mail-archive.com/linux-omap@vger.kernel.org/msg47511.html
>
> [2] http://www.spinics.net/lists/arm-kernel/msg138803.html
>
> [3] https://lkml.org/lkml/2011/9/3/49
>
> [4] https://gitorious.org/omap-sw-develoment/linux-omap-dev/commits/v3.1-rc4-omap4-pm-integrated
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