Contributors: 32
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Thomas Gleixner |
340 |
33.33% |
28 |
30.77% |
| Mike Travis |
151 |
14.80% |
9 |
9.89% |
| Tim Chen |
88 |
8.63% |
5 |
5.49% |
| Giovanni Gherdovich |
79 |
7.75% |
3 |
3.30% |
| Andi Kleen |
72 |
7.06% |
5 |
5.49% |
| Rafael J. Wysocki |
69 |
6.76% |
2 |
2.20% |
| Rusty Russell |
41 |
4.02% |
6 |
6.59% |
| Yinghai Lu |
25 |
2.45% |
3 |
3.30% |
| Pawan Gupta |
19 |
1.86% |
1 |
1.10% |
| Len Brown |
19 |
1.86% |
3 |
3.30% |
| Alexander Chiang |
13 |
1.27% |
1 |
1.10% |
| Linus Torvalds (pre-git) |
12 |
1.18% |
1 |
1.10% |
| Yanmin Zhang |
12 |
1.18% |
1 |
1.10% |
| Lee Schermerhorn |
12 |
1.18% |
3 |
3.30% |
| Huang Rui |
8 |
0.78% |
1 |
1.10% |
| Tony Luck |
7 |
0.69% |
1 |
1.10% |
| Björn Helgaas |
7 |
0.69% |
2 |
2.20% |
| Brian Gerst |
7 |
0.69% |
1 |
1.10% |
| Andrew Morton |
7 |
0.69% |
2 |
2.20% |
| Glauber de Oliveira Costa |
5 |
0.49% |
1 |
1.10% |
| Borislav Petkov |
4 |
0.39% |
1 |
1.10% |
| Martin J. Bligh |
4 |
0.39% |
1 |
1.10% |
| H. Peter Anvin |
3 |
0.29% |
1 |
1.10% |
| Michael Ellerman |
3 |
0.29% |
1 |
1.10% |
| Christoph Lameter |
3 |
0.29% |
1 |
1.10% |
| Peter Zijlstra |
2 |
0.20% |
1 |
1.10% |
| Erich Focht |
2 |
0.20% |
1 |
1.10% |
| Artem Fetishev |
2 |
0.20% |
1 |
1.10% |
| Bartosz Golaszewski |
1 |
0.10% |
1 |
1.10% |
| Linus Torvalds |
1 |
0.10% |
1 |
1.10% |
| Sudeep Holla |
1 |
0.10% |
1 |
1.10% |
| Tejun Heo |
1 |
0.10% |
1 |
1.10% |
| Total |
1020 |
|
91 |
|
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/*
* 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>
#include <linux/cpumask.h>
#ifdef CONFIG_NUMA
#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);
#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>
/* Topology information */
enum x86_topology_domains {
TOPO_SMT_DOMAIN,
TOPO_CORE_DOMAIN,
TOPO_MODULE_DOMAIN,
TOPO_TILE_DOMAIN,
TOPO_DIE_DOMAIN,
TOPO_DIEGRP_DOMAIN,
TOPO_PKG_DOMAIN,
TOPO_MAX_DOMAIN,
};
enum x86_topology_cpu_type {
TOPO_CPU_TYPE_PERFORMANCE,
TOPO_CPU_TYPE_EFFICIENCY,
TOPO_CPU_TYPE_UNKNOWN,
};
struct x86_topology_system {
unsigned int dom_shifts[TOPO_MAX_DOMAIN];
unsigned int dom_size[TOPO_MAX_DOMAIN];
};
extern struct x86_topology_system x86_topo_system;
static inline unsigned int topology_get_domain_size(enum x86_topology_domains dom)
{
return x86_topo_system.dom_size[dom];
}
static inline unsigned int topology_get_domain_shift(enum x86_topology_domains dom)
{
return dom == TOPO_SMT_DOMAIN ? 0 : x86_topo_system.dom_shifts[dom - 1];
}
extern const struct cpumask *cpu_coregroup_mask(int cpu);
extern const struct cpumask *cpu_clustergroup_mask(int cpu);
#define topology_logical_package_id(cpu) (cpu_data(cpu).topo.logical_pkg_id)
#define topology_physical_package_id(cpu) (cpu_data(cpu).topo.pkg_id)
#define topology_logical_die_id(cpu) (cpu_data(cpu).topo.logical_die_id)
#define topology_die_id(cpu) (cpu_data(cpu).topo.die_id)
#define topology_core_id(cpu) (cpu_data(cpu).topo.core_id)
#define topology_ppin(cpu) (cpu_data(cpu).ppin)
#define topology_amd_node_id(cpu) (cpu_data(cpu).topo.amd_node_id)
extern unsigned int __max_dies_per_package;
extern unsigned int __max_logical_packages;
extern unsigned int __max_threads_per_core;
extern unsigned int __num_threads_per_package;
extern unsigned int __num_cores_per_package;
const char *get_topology_cpu_type_name(struct cpuinfo_x86 *c);
enum x86_topology_cpu_type get_topology_cpu_type(struct cpuinfo_x86 *c);
static inline unsigned int topology_max_packages(void)
{
return __max_logical_packages;
}
static inline unsigned int topology_max_dies_per_package(void)
{
return __max_dies_per_package;
}
static inline unsigned int topology_num_cores_per_package(void)
{
return __num_cores_per_package;
}
static inline unsigned int topology_num_threads_per_package(void)
{
return __num_threads_per_package;
}
#ifdef CONFIG_X86_LOCAL_APIC
int topology_get_logical_id(u32 apicid, enum x86_topology_domains at_level);
#else
static inline int topology_get_logical_id(u32 apicid, enum x86_topology_domains at_level)
{
return 0;
}
#endif
#ifdef CONFIG_SMP
#define topology_cluster_id(cpu) (cpu_data(cpu).topo.l2c_id)
#define topology_die_cpumask(cpu) (per_cpu(cpu_die_map, cpu))
#define topology_cluster_cpumask(cpu) (cpu_clustergroup_mask(cpu))
#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
static inline int topology_phys_to_logical_pkg(unsigned int pkg)
{
return topology_get_logical_id(pkg << x86_topo_system.dom_shifts[TOPO_PKG_DOMAIN],
TOPO_PKG_DOMAIN);
}
extern int __max_smt_threads;
static inline int topology_max_smt_threads(void)
{
return __max_smt_threads;
}
#include <linux/cpu_smt.h>
extern unsigned int __amd_nodes_per_pkg;
static inline unsigned int topology_amd_nodes_per_pkg(void)
{
return __amd_nodes_per_pkg;
}
extern struct cpumask __cpu_primary_thread_mask;
#define cpu_primary_thread_mask ((const struct cpumask *)&__cpu_primary_thread_mask)
/**
* topology_is_primary_thread - Check whether CPU is the primary SMT thread
* @cpu: CPU to check
*/
static inline bool topology_is_primary_thread(unsigned int cpu)
{
return cpumask_test_cpu(cpu, cpu_primary_thread_mask);
}
#else /* CONFIG_SMP */
static inline int topology_phys_to_logical_pkg(unsigned int pkg) { return 0; }
static inline int topology_max_smt_threads(void) { return 1; }
static inline bool topology_is_primary_thread(unsigned int cpu) { return true; }
static inline unsigned int topology_amd_nodes_per_pkg(void) { return 1; }
#endif /* !CONFIG_SMP */
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 */
#if defined(CONFIG_SMP) && defined(CONFIG_X86_64)
#include <asm/cpufeature.h>
DECLARE_STATIC_KEY_FALSE(arch_scale_freq_key);
#define arch_scale_freq_invariant() static_branch_likely(&arch_scale_freq_key)
DECLARE_PER_CPU(unsigned long, arch_freq_scale);
static inline long arch_scale_freq_capacity(int cpu)
{
return per_cpu(arch_freq_scale, cpu);
}
#define arch_scale_freq_capacity arch_scale_freq_capacity
bool arch_enable_hybrid_capacity_scale(void);
void arch_set_cpu_capacity(int cpu, unsigned long cap, unsigned long max_cap,
unsigned long cap_freq, unsigned long base_freq);
unsigned long arch_scale_cpu_capacity(int cpu);
#define arch_scale_cpu_capacity arch_scale_cpu_capacity
extern void arch_set_max_freq_ratio(bool turbo_disabled);
extern void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled);
#else
static inline bool arch_enable_hybrid_capacity_scale(void) { return false; }
static inline void arch_set_cpu_capacity(int cpu, unsigned long cap,
unsigned long max_cap,
unsigned long cap_freq,
unsigned long base_freq) { }
static inline void arch_set_max_freq_ratio(bool turbo_disabled) { }
static inline void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled) { }
#endif
extern void arch_scale_freq_tick(void);
#define arch_scale_freq_tick arch_scale_freq_tick
#endif /* _ASM_X86_TOPOLOGY_H */