freebsd-dev/sys/powerpc/include/platform.h
Justin Hibbits 490ebb8f35 powerpc: Fix the NUMA domain list on powernv
Summary:
Consolidate the NUMA associativity handling into a platform function.
Non-NUMA platforms will just fall back to the default (0).  Currently
only implemented for powernv, which uses a lookup table to map the
device tree associativity into a system NUMA domain.

Fixes hangs on powernv after r356534, and corrects a fairly longstanding
bug in powernv's NUMA handling, which ended up using domains 1 and 2 for
devices and memory on power9, while CPUs were bound to domains 0 and 1.

Reviewed by:	bdragon, luporl
Differential Revision:	https://reviews.freebsd.org/D23220
2020-01-18 01:26:54 +00:00

78 lines
2.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (C) 1996 Wolfgang Solfrank.
* Copyright (C) 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
*
* $NetBSD: powerpc.h,v 1.3 2000/06/01 00:49:59 matt Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_PLATFORM_H_
#define _MACHINE_PLATFORM_H_
#include <machine/ofw_machdep.h>
#include <machine/smp.h>
#include <machine/pcpu.h>
struct mem_region {
uint64_t mr_start;
uint64_t mr_size;
};
struct numa_mem_region {
uint64_t mr_start;
uint64_t mr_size;
uint64_t mr_domain;
};
/* Documentation for these functions is in platform_if.m */
void mem_regions(struct mem_region **, int *, struct mem_region **, int *);
void numa_mem_regions(struct numa_mem_region **, int *);
vm_offset_t platform_real_maxaddr(void);
u_long platform_timebase_freq(struct cpuref *);
int platform_smp_first_cpu(struct cpuref *);
int platform_smp_next_cpu(struct cpuref *);
int platform_smp_get_bsp(struct cpuref *);
int platform_smp_start_cpu(struct pcpu *);
void platform_smp_timebase_sync(u_long tb, int ap);
void platform_smp_ap_init(void);
void platform_smp_probe_threads(void);
int platform_node_numa_domain(phandle_t);
const char *installed_platform(void);
void platform_probe_and_attach(void);
void platform_sleep(void);
#endif /* _MACHINE_PLATFORM_H_ */