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Message #00065
[Blueprint pwr-sched-mc-study] Study sched_mc for Arm
Blueprint changed by Vincent Guittot:
Whiteboard changed:
*Arm topology definition :
MIPDR register provides all thread/core/package info for Arm topology description
MPIDR register is accessed with MRC instruction
map MPIDR info on kernel topology
sched_mc uses topology description for creating sched_domain
*Timer and irq migration
available. need to check how/which pinned timer can impact power saving efficiency of sched_mc
*sched_mc
Default sched_domain init can be overwritten by arch specific one. Study if we need to define some arm specific
initializations
Work Items for 2011.07:
[vincent-guittot] read MPIDR register on ST-Ericsson platforms: DONE
[amitdanielk] read MPIDR register on Samsung platforms: DONE
[vishwanath-bs] read MPIDR register on omap4 platforms: DONE
[lorenzo-pieralisi] read MPIDR register on ELBA platforms: DONE
[vincent-guittot] consolidate MPIDR register results: DONE
[vincent-guittot] define scheduling topology for ARM: DONE
[vincent-guittot] add default topology definition for Arm platform: DONE
[vincent-guittot] test default topology definition for Arm platform: DONE
Work Items for 2011.08
[vincent-guittot] study impact flags and fields of struct sched_domain in scheduling policy: DONE
[vincent-guittot] study the interest of adding some arm platform dedicated SD_XXX_INIT configuration: DONE
these items were moved to https://blueprints.launchpad.net/linaro-pm-wg/+spec/sched-mc-for-arm
[robertdavidlee] read MPIDR register on Freescale multi-core platforms: TODO
- [vincent-guittot] study the interest of changing topology with sched_mc mode: DONE
+ [vincent-guittot] study the interest of changing topology with sched_mc mode: TODO
[vincent-guittot] study the pinned timer impact on sched_mc power mode: TODO
[vincent-guittot] study the interest of using FDT for cpu topology definition: TODO
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Study sched_mc for Arm
https://blueprints.launchpad.net/linaro-pm-wg/+spec/pwr-sched-mc-study