123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
|
/*
|
||
|
|
* Copyright(c) 2015 - 2017 Intel Corporation.
|
||
|
|
*
|
||
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
||
|
|
* redistributing this file, you may do so under either license.
|
||
|
|
*
|
||
|
|
* GPL LICENSE SUMMARY
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of version 2 of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* 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. See the GNU
|
||
|
|
* General Public License for more details.
|
||
|
|
*
|
||
|
|
* BSD LICENSE
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
*
|
||
|
|
* - Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* - Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in
|
||
|
|
* the documentation and/or other materials provided with the
|
||
|
|
* distribution.
|
||
|
|
* - Neither the name of Intel Corporation nor the names of its
|
||
|
|
* contributors may be used to endorse or promote products derived
|
||
|
|
* from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#ifndef _HFI1_AFFINITY_H
|
||
|
|
#define _HFI1_AFFINITY_H
|
||
|
|
|
||
|
|
#include "hfi.h"
|
||
|
|
|
||
|
|
enum irq_type {
|
||
|
|
IRQ_SDMA,
|
||
|
|
IRQ_RCVCTXT,
|
||
|
|
IRQ_GENERAL,
|
||
|
|
IRQ_OTHER
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Can be used for both memory and cpu */
|
||
|
|
enum affinity_flags {
|
||
|
|
AFF_AUTO,
|
||
|
|
AFF_NUMA_LOCAL,
|
||
|
|
AFF_DEV_LOCAL,
|
||
|
|
AFF_IRQ_LOCAL
|
||
|
|
};
|
||
|
|
|
||
|
|
struct cpu_mask_set {
|
||
|
|
struct cpumask mask;
|
||
|
|
struct cpumask used;
|
||
|
|
uint gen;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hfi1_msix_entry;
|
||
|
|
|
||
|
|
/* Initialize non-HT cpu cores mask */
|
||
|
|
void init_real_cpu_mask(void);
|
||
|
|
/* Initialize driver affinity data */
|
||
|
|
int hfi1_dev_affinity_init(struct hfi1_devdata *dd);
|
||
|
|
/*
|
||
|
|
* Set IRQ affinity to a CPU. The function will determine the
|
||
|
|
* CPU and set the affinity to it.
|
||
|
|
*/
|
||
|
|
int hfi1_get_irq_affinity(struct hfi1_devdata *dd,
|
||
|
|
struct hfi1_msix_entry *msix);
|
||
|
|
/*
|
||
|
|
* Remove the IRQ's CPU affinity. This function also updates
|
||
|
|
* any internal CPU tracking data
|
||
|
|
*/
|
||
|
|
void hfi1_put_irq_affinity(struct hfi1_devdata *dd,
|
||
|
|
struct hfi1_msix_entry *msix);
|
||
|
|
/*
|
||
|
|
* Determine a CPU affinity for a user process, if the process does not
|
||
|
|
* have an affinity set yet.
|
||
|
|
*/
|
||
|
|
int hfi1_get_proc_affinity(int node);
|
||
|
|
/* Release a CPU used by a user process. */
|
||
|
|
void hfi1_put_proc_affinity(int cpu);
|
||
|
|
|
||
|
|
struct hfi1_affinity_node {
|
||
|
|
int node;
|
||
|
|
struct cpu_mask_set def_intr;
|
||
|
|
struct cpu_mask_set rcv_intr;
|
||
|
|
struct cpumask general_intr_mask;
|
||
|
|
struct list_head list;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hfi1_affinity_node_list {
|
||
|
|
struct list_head list;
|
||
|
|
struct cpumask real_cpu_mask;
|
||
|
|
struct cpu_mask_set proc;
|
||
|
|
int num_core_siblings;
|
||
|
|
int num_possible_nodes;
|
||
|
|
int num_online_nodes;
|
||
|
|
int num_online_cpus;
|
||
|
|
struct mutex lock; /* protects affinity nodes */
|
||
|
|
};
|
||
|
|
|
||
|
|
int node_affinity_init(void);
|
||
|
|
void node_affinity_destroy(void);
|
||
|
|
extern struct hfi1_affinity_node_list node_affinity;
|
||
|
|
|
||
|
|
#endif /* _HFI1_AFFINITY_H */
|