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| 1 | /* $Id: PDMInline.h 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * PDM - Internal header file containing the inlined functions.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2022 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 |
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| 18 | #ifndef VMM_INCLUDED_SRC_include_PDMInline_h
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| 19 | #define VMM_INCLUDED_SRC_include_PDMInline_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 |
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| 25 | /**
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| 26 | * Calculates the next IRQ tag.
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| 27 | *
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| 28 | * @returns IRQ tag.
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| 29 | * @param pVM The cross context VM structure.
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| 30 | * @param idTracer The ID of the source device.
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| 31 | */
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| 32 | DECLINLINE(uint32_t) pdmCalcIrqTag(PVM pVM, uint32_t idTracer)
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| 33 | {
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| 34 | uint32_t uTag = (pVM->pdm.s.uIrqTag + 1) & 0x3ff; /* {0..1023} */
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| 35 | if (!uTag)
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| 36 | uTag++;
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| 37 | pVM->pdm.s.uIrqTag = uTag |= (idTracer << 16);
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| 38 | return uTag;
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| 39 | }
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| 40 |
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| 41 | #endif /* !VMM_INCLUDED_SRC_include_PDMInline_h */
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| 42 |
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