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e37be5d85c
The die ID in the Linux topology sysfs is a logical identifier that differs from the one presented in CPUID leaf 0x1F or via MSR 0x54. Introduce an interface that returns the Linux CPU die ID based on a given package ID and power domain ID. This mapping is stored during the CPU online callback in an array. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20250508230250.1186619-4-srinivas.pandruvada@linux.intel.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
19 lines
506 B
C
19 lines
506 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Mapping of TPMI power domain and CPUs
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*
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* Copyright (c) 2024, Intel Corporation.
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*/
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#ifndef _TPMI_POWER_DOMAINS_H_
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#define _TPMI_POWER_DOMAINS_H_
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#include <linux/cpumask.h>
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int tpmi_get_linux_cpu_number(int package_id, int die_id, int punit_core_id);
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int tpmi_get_punit_core_number(int cpu_no);
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int tpmi_get_power_domain_id(int cpu_no);
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cpumask_t *tpmi_get_power_domain_mask(int cpu_no);
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int tpmi_get_linux_die_id(int pkg_id, int domain_id);
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#endif
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