Hi Ben, The following series adds a kernel module for powerpc pseries platforms in order to export platform energy management capabilities.
The module exports data from a new hypervisor call H_BEST_ENERGY. Comments and suggestions made on the previous iteration of the patch has been incorporated. Changed in v3: * Added more documentation in the cleanup patch * Removed RFC tag, rebased and tested on 2.6.35-rc3 * Ready for inclusion in powerpc/next tree for further testing Changes in v2: [1] [RFC PATCH v2 0/2] powerpc: add support for new hcall H_BEST_ENERGY http://lists.ozlabs.org/pipermail/linuxppc-dev/2010-May/082246.html * Cleanup cpu/thread/core APIs * Export APIs to module instead of threads_per_core * Use of_find_node_by_path() instead of of_find_node_by_name() * Error checking and whitespace cleanups First version: [2] [RFC] powerpc: add support for new hcall H_BEST_ENERGY http://lists.ozlabs.org/pipermail/linuxppc-dev/2010-March/080796.html Please review and include in powerpc/next tree for further testing. I will add the following enhancements incrementally: * Detect h_call support from ibm,hypertas-functions * Limit sysfs file creation only on hcall availability This patch series will apply on 2.6.35-rc3 as well as powerpc/next tree. Thanks, Vaidy --- Vaidyanathan Srinivasan (2): powerpc: cleanup APIs for cpu/thread/core mappings powerpc: add support for new hcall H_BEST_ENERGY arch/powerpc/include/asm/cputhreads.h | 15 + arch/powerpc/include/asm/hvcall.h | 3 arch/powerpc/kernel/smp.c | 19 +- arch/powerpc/mm/mmu_context_nohash.c | 12 + arch/powerpc/platforms/pseries/Kconfig | 10 + arch/powerpc/platforms/pseries/Makefile | 1 arch/powerpc/platforms/pseries/pseries_energy.c | 258 +++++++++++++++++++++++ 7 files changed, 302 insertions(+), 16 deletions(-) create mode 100644 arch/powerpc/platforms/pseries/pseries_energy.c -- _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
