mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 11:58:21 +07:00
de966cf4a4
Rename CONFIG_SCHED_ITMT for Intel Turbo Boost Max Technology 3.0 to CONFIG_SCHED_MC_PRIO. This makes the configuration extensible in future to other architectures that wish to similarly establish CPU core priorities support in the scheduler. The description in Kconfig is updated to reflect this change with added details for better clarity. The configuration is explicitly default-y, to enable the feature on CPUs that have this feature. It has no effect on non-TBM3 CPUs. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bp@suse.de Cc: jolsa@redhat.com Cc: linux-acpi@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: rjw@rjwysocki.net Link: http://lkml.kernel.org/r/2b2ee29d93e3f162922d72d0165a1405864fbb23.1480444902.git.tim.c.chen@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
182 lines
4.8 KiB
C
182 lines
4.8 KiB
C
/*
|
|
* Written by: Matthew Dobson, IBM Corporation
|
|
*
|
|
* Copyright (C) 2002, IBM Corp.
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* Send feedback to <colpatch@us.ibm.com>
|
|
*/
|
|
#ifndef _ASM_X86_TOPOLOGY_H
|
|
#define _ASM_X86_TOPOLOGY_H
|
|
|
|
/*
|
|
* to preserve the visibility of NUMA_NO_NODE definition,
|
|
* moved to there from here. May be used independent of
|
|
* CONFIG_NUMA.
|
|
*/
|
|
#include <linux/numa.h>
|
|
|
|
#ifdef CONFIG_NUMA
|
|
#include <linux/cpumask.h>
|
|
|
|
#include <asm/mpspec.h>
|
|
#include <asm/percpu.h>
|
|
|
|
/* Mappings between logical cpu number and node number */
|
|
DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map);
|
|
|
|
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
|
|
/*
|
|
* override generic percpu implementation of cpu_to_node
|
|
*/
|
|
extern int __cpu_to_node(int cpu);
|
|
#define cpu_to_node __cpu_to_node
|
|
|
|
extern int early_cpu_to_node(int cpu);
|
|
|
|
#else /* !CONFIG_DEBUG_PER_CPU_MAPS */
|
|
|
|
/* Same function but used if called before per_cpu areas are setup */
|
|
static inline int early_cpu_to_node(int cpu)
|
|
{
|
|
return early_per_cpu(x86_cpu_to_node_map, cpu);
|
|
}
|
|
|
|
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
|
|
|
|
/* Mappings between node number and cpus on that node. */
|
|
extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
|
|
|
|
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
|
|
extern const struct cpumask *cpumask_of_node(int node);
|
|
#else
|
|
/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
|
|
static inline const struct cpumask *cpumask_of_node(int node)
|
|
{
|
|
return node_to_cpumask_map[node];
|
|
}
|
|
#endif
|
|
|
|
extern void setup_node_to_cpumask_map(void);
|
|
|
|
/*
|
|
* Returns the number of the node containing Node 'node'. This
|
|
* architecture is flat, so it is a pretty simple function!
|
|
*/
|
|
#define parent_node(node) (node)
|
|
|
|
#define pcibus_to_node(bus) __pcibus_to_node(bus)
|
|
|
|
extern int __node_distance(int, int);
|
|
#define node_distance(a, b) __node_distance(a, b)
|
|
|
|
#else /* !CONFIG_NUMA */
|
|
|
|
static inline int numa_node_id(void)
|
|
{
|
|
return 0;
|
|
}
|
|
/*
|
|
* indicate override:
|
|
*/
|
|
#define numa_node_id numa_node_id
|
|
|
|
static inline int early_cpu_to_node(int cpu)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void setup_node_to_cpumask_map(void) { }
|
|
|
|
#endif
|
|
|
|
#include <asm-generic/topology.h>
|
|
|
|
extern const struct cpumask *cpu_coregroup_mask(int cpu);
|
|
|
|
#define topology_logical_package_id(cpu) (cpu_data(cpu).logical_proc_id)
|
|
#define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id)
|
|
#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
|
|
|
|
#ifdef CONFIG_SMP
|
|
#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
|
|
#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
|
|
|
|
extern unsigned int __max_logical_packages;
|
|
#define topology_max_packages() (__max_logical_packages)
|
|
|
|
extern int __max_smt_threads;
|
|
|
|
static inline int topology_max_smt_threads(void)
|
|
{
|
|
return __max_smt_threads;
|
|
}
|
|
|
|
int topology_update_package_map(unsigned int apicid, unsigned int cpu);
|
|
extern int topology_phys_to_logical_pkg(unsigned int pkg);
|
|
#else
|
|
#define topology_max_packages() (1)
|
|
static inline int
|
|
topology_update_package_map(unsigned int apicid, unsigned int cpu) { return 0; }
|
|
static inline int topology_phys_to_logical_pkg(unsigned int pkg) { return 0; }
|
|
static inline int topology_max_smt_threads(void) { return 1; }
|
|
#endif
|
|
|
|
static inline void arch_fix_phys_package_id(int num, u32 slot)
|
|
{
|
|
}
|
|
|
|
struct pci_bus;
|
|
int x86_pci_root_bus_node(int bus);
|
|
void x86_pci_root_bus_resources(int bus, struct list_head *resources);
|
|
|
|
extern bool x86_topology_update;
|
|
|
|
#ifdef CONFIG_SCHED_MC_PRIO
|
|
#include <asm/percpu.h>
|
|
|
|
DECLARE_PER_CPU_READ_MOSTLY(int, sched_core_priority);
|
|
extern unsigned int __read_mostly sysctl_sched_itmt_enabled;
|
|
|
|
/* Interface to set priority of a cpu */
|
|
void sched_set_itmt_core_prio(int prio, int core_cpu);
|
|
|
|
/* Interface to notify scheduler that system supports ITMT */
|
|
int sched_set_itmt_support(void);
|
|
|
|
/* Interface to notify scheduler that system revokes ITMT support */
|
|
void sched_clear_itmt_support(void);
|
|
|
|
#else /* CONFIG_SCHED_MC_PRIO */
|
|
|
|
#define sysctl_sched_itmt_enabled 0
|
|
static inline void sched_set_itmt_core_prio(int prio, int core_cpu)
|
|
{
|
|
}
|
|
static inline int sched_set_itmt_support(void)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void sched_clear_itmt_support(void)
|
|
{
|
|
}
|
|
#endif /* CONFIG_SCHED_MC_PRIO */
|
|
|
|
#endif /* _ASM_X86_TOPOLOGY_H */
|