| 1 | /* $Id: mp-os2.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Multiprocessor, OS/2.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #define INCL_BASE
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| 32 | #define INCL_ERRORS
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| 33 | #include <os2.h>
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| 34 | #undef RT_MAX
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| 35 |
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| 36 | #include <iprt/mp.h>
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| 37 | #include <iprt/cpuset.h>
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| 38 | #include <iprt/assert.h>
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| 39 |
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| 40 | /** @todo RTMpCpuId() */
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| 41 |
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| 42 | RTDECL(int) RTMpCpuIdToSetIndex(RTCPUID idCpu)
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| 43 | {
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| 44 | return idCpu < RTCPUSET_MAX_CPUS ? (int) idCpu : -1;
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| 45 | }
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| 46 |
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| 47 |
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| 48 | RTDECL(RTCPUID) RTMpCpuIdFromSetIndex(int iCpu)
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| 49 | {
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| 50 | return (unsigned)iCpu < RTCPUSET_MAX_CPUS ? iCpu : NIL_RTCPUID;
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| 51 | }
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| 52 |
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| 53 |
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| 54 | RTDECL(RTCPUID) RTMpGetMaxCpuId(void)
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| 55 | {
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| 56 | return RTCPUSET_MAX_CPUS;
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| 57 | }
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| 58 |
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| 59 |
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| 60 | RTDECL(bool) RTMpIsCpuPossible(RTCPUID idCpu)
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| 61 | {
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| 62 | RTCPUSET Set;
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| 63 | return RTCpuSetIsMember(RTMpGetSet(&Set), idCpu);
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| 64 | }
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| 65 |
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| 66 |
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| 67 | RTDECL(PRTCPUSET) RTMpGetSet(PRTCPUSET pSet)
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| 68 | {
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| 69 | RTCPUID idCpu = RTMpGetCount();
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| 70 | RTCpuSetEmpty(pSet);
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| 71 | while (idCpu-- > 0)
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| 72 | RTCpuSetAdd(pSet, idCpu);
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| 73 | return pSet;
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| 74 | }
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| 75 |
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| 76 |
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| 77 | RTDECL(RTCPUID) RTMpGetCount(void)
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| 78 | {
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| 79 | ULONG cCpus = 1;
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| 80 | int rc = DosQuerySysInfo(QSV_NUMPROCESSORS, QSV_NUMPROCESSORS, &cCpus, sizeof(cCpus));
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| 81 | if (rc || !cCpus)
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| 82 | cCpus = 1;
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| 83 | return cCpus;
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| 84 | }
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| 85 |
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| 86 |
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| 87 | RTDECL(bool) RTMpIsCpuOnline(RTCPUID idCpu)
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| 88 | {
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| 89 | RTCPUSET Set;
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| 90 | return RTCpuSetIsMember(RTMpGetOnlineSet(&Set), idCpu);
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| 91 | }
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| 92 |
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| 93 |
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| 94 | RTDECL(PRTCPUSET) RTMpGetOnlineSet(PRTCPUSET pSet)
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| 95 | {
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| 96 | union
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| 97 | {
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| 98 | uint64_t u64;
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| 99 | MPAFFINITY mpaff;
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| 100 | } u;
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| 101 |
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| 102 | int rc = DosQueryThreadAffinity(AFNTY_SYSTEM, &u.mpaff);
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| 103 | if (rc)
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| 104 | u.u64 = 1;
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| 105 | return RTCpuSetFromU64(pSet, u.u64);
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| 106 | }
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| 107 |
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| 108 |
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| 109 | RTDECL(RTCPUID) RTMpGetOnlineCount(void)
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| 110 | {
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| 111 | RTCPUSET Set;
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| 112 | RTMpGetOnlineSet(&Set);
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| 113 | return RTCpuSetCount(&Set);
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| 114 | }
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| 115 |
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