mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 20:36:43 +07:00
f03542a701
Since power saving code was removed from sched now, the implement code is out of service in this function, and even pollute other logical. like, 'want_sd' never has chance to be set '0', that remove the effect of SD_WAKE_AFFINE here. So, clean up the obsolete code, includes SD_PREFER_LOCAL. Signed-off-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/5028F431.6000306@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
293 lines
7.3 KiB
C
293 lines
7.3 KiB
C
/*
|
|
* include/linux/topology.h
|
|
*
|
|
* 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 _LINUX_TOPOLOGY_H
|
|
#define _LINUX_TOPOLOGY_H
|
|
|
|
#include <linux/cpumask.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/mmzone.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/percpu.h>
|
|
#include <asm/topology.h>
|
|
|
|
#ifndef node_has_online_mem
|
|
#define node_has_online_mem(nid) (1)
|
|
#endif
|
|
|
|
#ifndef nr_cpus_node
|
|
#define nr_cpus_node(node) cpumask_weight(cpumask_of_node(node))
|
|
#endif
|
|
|
|
#define for_each_node_with_cpus(node) \
|
|
for_each_online_node(node) \
|
|
if (nr_cpus_node(node))
|
|
|
|
int arch_update_cpu_topology(void);
|
|
|
|
/* Conform to ACPI 2.0 SLIT distance definitions */
|
|
#define LOCAL_DISTANCE 10
|
|
#define REMOTE_DISTANCE 20
|
|
#ifndef node_distance
|
|
#define node_distance(from,to) ((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
|
|
#endif
|
|
#ifndef RECLAIM_DISTANCE
|
|
/*
|
|
* If the distance between nodes in a system is larger than RECLAIM_DISTANCE
|
|
* (in whatever arch specific measurement units returned by node_distance())
|
|
* then switch on zone reclaim on boot.
|
|
*/
|
|
#define RECLAIM_DISTANCE 30
|
|
#endif
|
|
#ifndef PENALTY_FOR_NODE_WITH_CPUS
|
|
#define PENALTY_FOR_NODE_WITH_CPUS (1)
|
|
#endif
|
|
|
|
/*
|
|
* Below are the 3 major initializers used in building sched_domains:
|
|
* SD_SIBLING_INIT, for SMT domains
|
|
* SD_CPU_INIT, for SMP domains
|
|
*
|
|
* Any architecture that cares to do any tuning to these values should do so
|
|
* by defining their own arch-specific initializer in include/asm/topology.h.
|
|
* A definition there will automagically override these default initializers
|
|
* and allow arch-specific performance tuning of sched_domains.
|
|
* (Only non-zero and non-null fields need be specified.)
|
|
*/
|
|
|
|
#ifdef CONFIG_SCHED_SMT
|
|
/* MCD - Do we really need this? It is always on if CONFIG_SCHED_SMT is,
|
|
* so can't we drop this in favor of CONFIG_SCHED_SMT?
|
|
*/
|
|
#define ARCH_HAS_SCHED_WAKE_IDLE
|
|
/* Common values for SMT siblings */
|
|
#ifndef SD_SIBLING_INIT
|
|
#define SD_SIBLING_INIT (struct sched_domain) { \
|
|
.min_interval = 1, \
|
|
.max_interval = 2, \
|
|
.busy_factor = 64, \
|
|
.imbalance_pct = 110, \
|
|
\
|
|
.flags = 1*SD_LOAD_BALANCE \
|
|
| 1*SD_BALANCE_NEWIDLE \
|
|
| 1*SD_BALANCE_EXEC \
|
|
| 1*SD_BALANCE_FORK \
|
|
| 0*SD_BALANCE_WAKE \
|
|
| 1*SD_WAKE_AFFINE \
|
|
| 1*SD_SHARE_CPUPOWER \
|
|
| 1*SD_SHARE_PKG_RESOURCES \
|
|
| 0*SD_SERIALIZE \
|
|
| 0*SD_PREFER_SIBLING \
|
|
| arch_sd_sibling_asym_packing() \
|
|
, \
|
|
.last_balance = jiffies, \
|
|
.balance_interval = 1, \
|
|
.smt_gain = 1178, /* 15% */ \
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_SCHED_SMT */
|
|
|
|
#ifdef CONFIG_SCHED_MC
|
|
/* Common values for MC siblings. for now mostly derived from SD_CPU_INIT */
|
|
#ifndef SD_MC_INIT
|
|
#define SD_MC_INIT (struct sched_domain) { \
|
|
.min_interval = 1, \
|
|
.max_interval = 4, \
|
|
.busy_factor = 64, \
|
|
.imbalance_pct = 125, \
|
|
.cache_nice_tries = 1, \
|
|
.busy_idx = 2, \
|
|
.wake_idx = 0, \
|
|
.forkexec_idx = 0, \
|
|
\
|
|
.flags = 1*SD_LOAD_BALANCE \
|
|
| 1*SD_BALANCE_NEWIDLE \
|
|
| 1*SD_BALANCE_EXEC \
|
|
| 1*SD_BALANCE_FORK \
|
|
| 0*SD_BALANCE_WAKE \
|
|
| 1*SD_WAKE_AFFINE \
|
|
| 0*SD_SHARE_CPUPOWER \
|
|
| 1*SD_SHARE_PKG_RESOURCES \
|
|
| 0*SD_SERIALIZE \
|
|
, \
|
|
.last_balance = jiffies, \
|
|
.balance_interval = 1, \
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_SCHED_MC */
|
|
|
|
/* Common values for CPUs */
|
|
#ifndef SD_CPU_INIT
|
|
#define SD_CPU_INIT (struct sched_domain) { \
|
|
.min_interval = 1, \
|
|
.max_interval = 4, \
|
|
.busy_factor = 64, \
|
|
.imbalance_pct = 125, \
|
|
.cache_nice_tries = 1, \
|
|
.busy_idx = 2, \
|
|
.idle_idx = 1, \
|
|
.newidle_idx = 0, \
|
|
.wake_idx = 0, \
|
|
.forkexec_idx = 0, \
|
|
\
|
|
.flags = 1*SD_LOAD_BALANCE \
|
|
| 1*SD_BALANCE_NEWIDLE \
|
|
| 1*SD_BALANCE_EXEC \
|
|
| 1*SD_BALANCE_FORK \
|
|
| 0*SD_BALANCE_WAKE \
|
|
| 1*SD_WAKE_AFFINE \
|
|
| 0*SD_SHARE_CPUPOWER \
|
|
| 0*SD_SHARE_PKG_RESOURCES \
|
|
| 0*SD_SERIALIZE \
|
|
| 1*SD_PREFER_SIBLING \
|
|
, \
|
|
.last_balance = jiffies, \
|
|
.balance_interval = 1, \
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SCHED_BOOK
|
|
#ifndef SD_BOOK_INIT
|
|
#error Please define an appropriate SD_BOOK_INIT in include/asm/topology.h!!!
|
|
#endif
|
|
#endif /* CONFIG_SCHED_BOOK */
|
|
|
|
#ifdef CONFIG_USE_PERCPU_NUMA_NODE_ID
|
|
DECLARE_PER_CPU(int, numa_node);
|
|
|
|
#ifndef numa_node_id
|
|
/* Returns the number of the current Node. */
|
|
static inline int numa_node_id(void)
|
|
{
|
|
return __this_cpu_read(numa_node);
|
|
}
|
|
#endif
|
|
|
|
#ifndef cpu_to_node
|
|
static inline int cpu_to_node(int cpu)
|
|
{
|
|
return per_cpu(numa_node, cpu);
|
|
}
|
|
#endif
|
|
|
|
#ifndef set_numa_node
|
|
static inline void set_numa_node(int node)
|
|
{
|
|
this_cpu_write(numa_node, node);
|
|
}
|
|
#endif
|
|
|
|
#ifndef set_cpu_numa_node
|
|
static inline void set_cpu_numa_node(int cpu, int node)
|
|
{
|
|
per_cpu(numa_node, cpu) = node;
|
|
}
|
|
#endif
|
|
|
|
#else /* !CONFIG_USE_PERCPU_NUMA_NODE_ID */
|
|
|
|
/* Returns the number of the current Node. */
|
|
#ifndef numa_node_id
|
|
static inline int numa_node_id(void)
|
|
{
|
|
return cpu_to_node(raw_smp_processor_id());
|
|
}
|
|
#endif
|
|
|
|
#endif /* [!]CONFIG_USE_PERCPU_NUMA_NODE_ID */
|
|
|
|
#ifdef CONFIG_HAVE_MEMORYLESS_NODES
|
|
|
|
/*
|
|
* N.B., Do NOT reference the '_numa_mem_' per cpu variable directly.
|
|
* It will not be defined when CONFIG_HAVE_MEMORYLESS_NODES is not defined.
|
|
* Use the accessor functions set_numa_mem(), numa_mem_id() and cpu_to_mem().
|
|
*/
|
|
DECLARE_PER_CPU(int, _numa_mem_);
|
|
|
|
#ifndef set_numa_mem
|
|
static inline void set_numa_mem(int node)
|
|
{
|
|
this_cpu_write(_numa_mem_, node);
|
|
}
|
|
#endif
|
|
|
|
#ifndef numa_mem_id
|
|
/* Returns the number of the nearest Node with memory */
|
|
static inline int numa_mem_id(void)
|
|
{
|
|
return __this_cpu_read(_numa_mem_);
|
|
}
|
|
#endif
|
|
|
|
#ifndef cpu_to_mem
|
|
static inline int cpu_to_mem(int cpu)
|
|
{
|
|
return per_cpu(_numa_mem_, cpu);
|
|
}
|
|
#endif
|
|
|
|
#ifndef set_cpu_numa_mem
|
|
static inline void set_cpu_numa_mem(int cpu, int node)
|
|
{
|
|
per_cpu(_numa_mem_, cpu) = node;
|
|
}
|
|
#endif
|
|
|
|
#else /* !CONFIG_HAVE_MEMORYLESS_NODES */
|
|
|
|
#ifndef numa_mem_id
|
|
/* Returns the number of the nearest Node with memory */
|
|
static inline int numa_mem_id(void)
|
|
{
|
|
return numa_node_id();
|
|
}
|
|
#endif
|
|
|
|
#ifndef cpu_to_mem
|
|
static inline int cpu_to_mem(int cpu)
|
|
{
|
|
return cpu_to_node(cpu);
|
|
}
|
|
#endif
|
|
|
|
#endif /* [!]CONFIG_HAVE_MEMORYLESS_NODES */
|
|
|
|
#ifndef topology_physical_package_id
|
|
#define topology_physical_package_id(cpu) ((void)(cpu), -1)
|
|
#endif
|
|
#ifndef topology_core_id
|
|
#define topology_core_id(cpu) ((void)(cpu), 0)
|
|
#endif
|
|
#ifndef topology_thread_cpumask
|
|
#define topology_thread_cpumask(cpu) cpumask_of(cpu)
|
|
#endif
|
|
#ifndef topology_core_cpumask
|
|
#define topology_core_cpumask(cpu) cpumask_of(cpu)
|
|
#endif
|
|
|
|
#endif /* _LINUX_TOPOLOGY_H */
|