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x86/sched: Add the SD_ASYM_PACKING flag to the die domain of hybrid processors

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Intel Meteor Lake hybrid processors have cores in two separate dies. The
cores in one of the dies have higher maximum frequency. Use the SD_ASYM_
PACKING flag to give higher priority to the die with CPUs of higher maximum
frequency.

Suggested-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230406203148.19182-13-ricardo.neri-calderon@linux.intel.com
This commit is contained in:
Chen Yu 2023-04-06 13:31:48 -07:00 committed by Peter Zijlstra
parent 046a5a95c3
commit 044f0e27de
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/smpboot.c
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@ -583,7 +583,7 @@ static struct sched_domain_topology_level x86_hybrid_topology[] = {
#ifdef CONFIG_SCHED_MC #ifdef CONFIG_SCHED_MC
{ cpu_coregroup_mask, x86_core_flags, SD_INIT_NAME(MC) }, { cpu_coregroup_mask, x86_core_flags, SD_INIT_NAME(MC) },
#endif #endif
{ cpu_cpu_mask, SD_INIT_NAME(DIE) }, { cpu_cpu_mask, x86_sched_itmt_flags, SD_INIT_NAME(DIE) },
{ NULL, }, { NULL, },
}; };