On 18 April 2014 12:56, Peter Zijlstra <[email protected]> wrote: > On Fri, Apr 11, 2014 at 11:44:37AM +0200, Vincent Guittot wrote: >> We replace the old way to configure the scheduler topology with a new method >> which enables a platform to declare additionnal level (if needed). >> >> We still have a default topology table definition that can be used by >> platform >> that don't want more level than the SMT, MC, CPU and NUMA ones. This table >> can >> be overwritten by an arch which either wants to add new level where a load >> balance make sense like BOOK or powergating level or wants to change the >> flags >> configuration of some levels. >> >> For each level, we need a function pointer that returns cpumask for each cpu, >> a function pointer that returns the flags for the level and a name. Only >> flags >> that describe topology, can be set by an architecture. The current topology >> flags are: >> SD_SHARE_CPUPOWER >> SD_SHARE_PKG_RESOURCES >> SD_NUMA >> SD_ASYM_PACKING >> >> Then, each level must be a subset on the next one. The build sequence of the >> sched_domain will take care of removing useless levels like those with 1 CPU >> and those with the same CPU span and no more relevant information for >> load balancing than its childs. >> >> Signed-off-by: Vincent Guittot <[email protected]> >> Reviewed-by: Preeti U Murthy <[email protected]> > > On x86_64 defconfig this gets me: > > kernel/sched/core.c: In function 'sched_init_numa': > kernel/sched/core.c:6197:4: warning: initialization makes pointer from > integer without a cast [enabled by default] > kernel/sched/core.c:6197:4: warning: (near initialization for > '(anonymous).sd_flags') [enabled by default]
Sorry, while moving from int to function pointer, i forgot to change the numa part I'm going to send a fix right now > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
