vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/linux/arch_topology.h - arch specific cpu topology information
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*/
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#ifndef _LINUX_ARCH_TOPOLOGY_H_
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#define _LINUX_ARCH_TOPOLOGY_H_
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#include <linux/types.h>
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#include <linux/percpu.h>
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void topology_normalize_cpu_scale(void);
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int topology_update_cpu_topology(void);
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struct device_node;
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bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
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DECLARE_PER_CPU(unsigned long, capacity_freq_ref);
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static inline unsigned long topology_get_freq_ref(int cpu)
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{
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return per_cpu(capacity_freq_ref, cpu);
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}
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DECLARE_PER_CPU(unsigned long, arch_freq_scale);
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static inline unsigned long topology_get_freq_scale(int cpu)
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{
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return per_cpu(arch_freq_scale, cpu);
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}
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void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
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unsigned long max_freq);
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bool topology_scale_freq_invariant(void);
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enum scale_freq_source {
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SCALE_FREQ_SOURCE_CPUFREQ = 0,
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SCALE_FREQ_SOURCE_ARCH,
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SCALE_FREQ_SOURCE_CPPC,
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SCALE_FREQ_SOURCE_VIRT,
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};
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struct scale_freq_data {
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enum scale_freq_source source;
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void (*set_freq_scale)(void);
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};
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void topology_scale_freq_tick(void);
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void topology_set_scale_freq_source(struct scale_freq_data *data, const struct cpumask *cpus);
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void topology_clear_scale_freq_source(enum scale_freq_source source, const struct cpumask *cpus);
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DECLARE_PER_CPU(unsigned long, hw_pressure);
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static inline unsigned long topology_get_hw_pressure(int cpu)
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{
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return per_cpu(hw_pressure, cpu);
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}
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void topology_update_hw_pressure(const struct cpumask *cpus,
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unsigned long capped_freq);
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struct cpu_topology {
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int thread_id;
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int core_id;
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int cluster_id;
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int package_id;
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cpumask_t thread_sibling;
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cpumask_t core_sibling;
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cpumask_t cluster_sibling;
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cpumask_t llc_sibling;
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};
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#ifdef CONFIG_GENERIC_ARCH_TOPOLOGY
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extern struct cpu_topology cpu_topology[NR_CPUS];
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#define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id)
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#define topology_cluster_id(cpu) (cpu_topology[cpu].cluster_id)
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#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
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#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
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#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
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#define topology_cluster_cpumask(cpu) (&cpu_topology[cpu].cluster_sibling)
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#define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling)
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#ifndef arch_cpu_is_threaded
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#define arch_cpu_is_threaded() (0)
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#endif
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void init_cpu_topology(void);
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void store_cpu_topology(unsigned int cpuid);
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const struct cpumask *cpu_coregroup_mask(int cpu);
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const struct cpumask *cpu_clustergroup_mask(int cpu);
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void update_siblings_masks(unsigned int cpu);
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void remove_cpu_topology(unsigned int cpuid);
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void reset_cpu_topology(void);
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int parse_acpi_topology(void);
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void freq_inv_set_max_ratio(int cpu, u64 max_rate);
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/*
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* Architectures like ARM64 don't have reliable architectural way to get SMT
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* information and depend on the firmware (ACPI/OF) report. Non-SMT core won't
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* initialize thread_id so we can use this to detect the SMT implementation.
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*/
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static inline bool topology_core_has_smt(int cpu)
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{
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return cpu_topology[cpu].thread_id != -1;
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}
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#else
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static inline bool topology_core_has_smt(int cpu) { return false; }
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#endif /* CONFIG_GENERIC_ARCH_TOPOLOGY */
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#endif /* _LINUX_ARCH_TOPOLOGY_H_ */
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