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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-05-15 14:11:39 +0800
committerPeter Zijlstra <peterz@infradead.org>2026-05-19 13:49:04 +0200
commit0073ed169226f4ed65e339f770118f54ce4e1370 (patch)
tree9ffe572a139c28a3d36ce35e16f0e262470b888b /rust/kernel
parent331c3e4fa39a87560c09bdd878652090ae040b69 (diff)
perf/x86/intel: Update event constraints and cache_extra_regsfor ARL
Update perf hard-coded event constraints and cache_extra_regs[] for Arrowlake according to the latest ARL perfmon events (V1.17). ARL shares almost same event constraints and extra MSR configuration with LNL except 2 differences. - ARL P-core has different extra MSR value for OCR.DEMAND_DATA_RD.L3_MISS and OCR.DEMAND_RFO.L3_MISS. So introduce arl_lnc_hw_cache_extra_regs[] to reflect the difference. - ARL-H has extra LPE cores which use crestmont architectures. Add crestmont specific event constraints and hw_cache_extra_regs[] for LPE cores. ARL perfmon events: https://github.com/intel/perfmon/blob/main/ARL/events/arrowlake_lioncove_core.json https://github.com/intel/perfmon/blob/main/ARL/events/arrowlake_skymont_core.json https://github.com/intel/perfmon/blob/main/ARL/events/arrowlake_crestmont_core.json Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://patch.msgid.link/20260515061143.338553-8-dapeng1.mi@linux.intel.com
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