4b9cf23c17
In preparation for other uses of Activity Monitors (AMU) cycle counters, place counter read functionality in generic functions that can reused: read_corecnt() and read_constcnt(). As a result, implement update_freq_counters_refs() to replace init_cpu_freq_invariance_counters() and both initialise and update the per-cpu reference variables. Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20201106125334.21570-2-ionela.voinescu@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_TOPOLOGY_H
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#define __ASM_TOPOLOGY_H
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#include <linux/cpumask.h>
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#ifdef CONFIG_NUMA
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struct pci_bus;
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int pcibus_to_node(struct pci_bus *bus);
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#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
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cpu_all_mask : \
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cpumask_of_node(pcibus_to_node(bus)))
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#endif /* CONFIG_NUMA */
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#include <linux/arch_topology.h>
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void update_freq_counters_refs(void);
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void topology_scale_freq_tick(void);
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#ifdef CONFIG_ARM64_AMU_EXTN
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/*
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* Replace task scheduler's default counter-based
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* frequency-invariance scale factor setting.
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*/
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#define arch_scale_freq_tick topology_scale_freq_tick
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#endif /* CONFIG_ARM64_AMU_EXTN */
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/* Replace task scheduler's default frequency-invariant accounting */
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#define arch_set_freq_scale topology_set_freq_scale
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#define arch_scale_freq_capacity topology_get_freq_scale
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#define arch_scale_freq_invariant topology_scale_freq_invariant
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/* Replace task scheduler's default cpu-invariant accounting */
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#define arch_scale_cpu_capacity topology_get_cpu_scale
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/* Enable topology flag updates */
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#define arch_update_cpu_topology topology_update_cpu_topology
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/* Replace task scheduler's default thermal pressure API */
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#define arch_scale_thermal_pressure topology_get_thermal_pressure
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#define arch_set_thermal_pressure topology_set_thermal_pressure
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#include <asm-generic/topology.h>
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#endif /* _ASM_ARM_TOPOLOGY_H */
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