From f8fe689a81f906d1b91bb3220acde2a4ecb14c5b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 05:01:46 +0200 Subject: Adding upstream version 6.0.4-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Runtime/include/internal/mp.h | 85 ++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 src/VBox/Runtime/include/internal/mp.h (limited to 'src/VBox/Runtime/include/internal/mp.h') diff --git a/src/VBox/Runtime/include/internal/mp.h b/src/VBox/Runtime/include/internal/mp.h new file mode 100644 index 00000000..5f54f452 --- /dev/null +++ b/src/VBox/Runtime/include/internal/mp.h @@ -0,0 +1,85 @@ +/* $Id: mp.h $ */ +/** @file + * IPRT - Internal RTMp header + */ + +/* + * Copyright (C) 2016-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef IPRT_INCLUDED_INTERNAL_mp_h +#define IPRT_INCLUDED_INTERNAL_mp_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include +#include + +RT_C_DECLS_BEGIN + + +#ifdef RT_OS_WINDOWS +/** @todo Return the processor group + number instead. + * Unfortunately, DTrace and HM makes the impossible for the time being as it + * seems to be making the stupid assumption that idCpu == iCpuSet. */ +#if 0 +# define IPRT_WITH_RTCPUID_AS_GROUP_AND_NUMBER +#endif + +# ifdef IPRT_WITH_RTCPUID_AS_GROUP_AND_NUMBER + +/** @def RTMPCPUID_FROM_GROUP_AND_NUMBER + * Creates the RTCPUID value. + * + * @remarks We Increment a_uGroup by 1 to make sure the ID is never the same as + * the CPU set index. + * + * @remarks We put the group in the top to make it easy to construct the MAX ID. + * For that reason we also just use 8 bits for the processor number, as + * it keeps the range small. + */ +# define RTMPCPUID_FROM_GROUP_AND_NUMBER(a_uGroup, a_uGroupMember) \ + ( (uint8_t)(a_uGroupMember) | (((uint32_t)(a_uGroup) + 1) << 8) ) + +/** Extracts the group number from a RTCPUID value. */ +DECLINLINE(uint16_t) rtMpCpuIdGetGroup(RTCPUID idCpu) +{ + Assert(idCpu != NIL_RTCPUID); + uint16_t idxGroup = idCpu >> 8; + Assert(idxGroup != 0); + return idxGroup - 1; +} + +/** Extracts the group member number from a RTCPUID value. */ +DECLINLINE(uint8_t) rtMpCpuIdGetGroupMember(RTCPUID idCpu) +{ + Assert(idCpu != NIL_RTCPUID); + return (uint8_t)idCpu; +} + +# endif /* IPRT_WITH_RTCPUID_AS_GROUP_AND_NUMBER */ +#endif /* RT_OS_WINDOWS */ + + +RT_C_DECLS_END + +#endif /* !IPRT_INCLUDED_INTERNAL_mp_h */ + -- cgit v1.2.3