99 lines
3.1 KiB
C
99 lines
3.1 KiB
C
/* $NetBSD: acpi_srat.h,v 1.3 2010/03/05 08:30:48 jruoho Exp $ */
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/*
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* Copyright (c) 2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christoph Egger.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_DEV_ACPI_ACPI_SRAT_H
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#define _SYS_DEV_ACPI_ACPI_SRAT_H
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typedef uint32_t acpisrat_nodeid_t;
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struct acpisrat_cpu {
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acpisrat_nodeid_t nodeid;
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uint32_t apicid;
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uint32_t sapiceid;
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uint32_t flags;
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/* clockdomain has a meaningful value when the ACPI MADT table has
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* ACPI_MADT_TYPE_LOCAL_X2APIC and/or ACPI_MADT_TYPE_LOCAL_X2APIC_NMI
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* entries or ACPI CPU device have a _CDM.
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*/
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uint32_t clockdomain;
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};
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struct acpisrat_mem {
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acpisrat_nodeid_t nodeid;
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uint64_t baseaddress;
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uint64_t length;
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uint32_t flags;
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};
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/* Returns true if ACPI SRAT table is available.
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*
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* If table does not exist, all functions below
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* have undefined behaviour.
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*/
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bool acpisrat_exist(void);
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/* Initializes parser. Must be the first function
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* being called when table is available.
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*/
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int acpisrat_init(void);
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/* Re-parse ACPI SRAT table. Useful after
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* hotplugging cpu or RAM.
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*/
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int acpisrat_refresh(void);
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/* Free allocated memory. Should be called
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* when acpisrat is no longer of any use.
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*/
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int acpisrat_exit(void);
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void acpisrat_dump(void);
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/* Get number of NUMA nodes */
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uint32_t acpisrat_nodes(void);
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/* Get number of cpus in the node.
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* 0 means, this is a cpu-less node.
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*/
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uint32_t acpisrat_node_cpus(acpisrat_nodeid_t);
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/* Get number of memory ranges in the node
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* 0 means, this node has no RAM.
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*/
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uint32_t acpisrat_node_memoryranges(acpisrat_nodeid_t);
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/* Retrieve cpu and memory info. */
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void acpisrat_cpu(acpisrat_nodeid_t, uint32_t cpunum, struct acpisrat_cpu *);
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void acpisrat_mem(acpisrat_nodeid_t, uint32_t memrange, struct acpisrat_mem *);
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#endif /* !_SYS_DEV_ACPI_ACPI_SRAT_H */
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