[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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