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authorXiaochen Shen <shenxiaochen@open-hieco.net>2025-12-09 14:26:49 +0800
committerBorislav Petkov (AMD) <bp@alien8.de>2026-01-13 16:20:01 +0100
commit6ee98aabdc700b5705e4f1833e2edc82a826b53b (patch)
treea1a349ad926f77ac9c8455f62044d80b2fe24566 /tools/perf/scripts/python/bin
parent0f61b1860cc3f52aef9036d7235ed1f017632193 (diff)
x86/resctrl: Add missing resctrl initialization for Hygon
Hygon CPUs supporting Platform QoS features currently undergo partial resctrl initialization through resctrl_cpu_detect() in the Hygon BSP init helper and AMD/Hygon common initialization code. However, several critical data structures remain uninitialized for Hygon CPUs in the following paths: - get_mem_config()-> __rdt_get_mem_config_amd(): rdt_resource::membw,alloc_capable hw_res::num_closid - rdt_init_res_defs()->rdt_init_res_defs_amd(): rdt_resource::cache hw_res::msr_base,msr_update Add the missing AMD/Hygon common initialization to ensure proper Platform QoS functionality on Hygon CPUs. Fixes: d8df126349da ("x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper") Signed-off-by: Xiaochen Shen <shenxiaochen@open-hieco.net> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20251209062650.1536952-2-shenxiaochen@open-hieco.net
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