mirror of https://github.com/acidanthera/audk.git
134 lines
2.6 KiB
C
134 lines
2.6 KiB
C
/** @file
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Base Library CPU functions for Itanium
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Copyright (c) 2006, Intel Corporation<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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//void __mfa (void);
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#pragma intrinsic (_enable)
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#pragma intrinsic (_disable)
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#pragma intrinsic (__break)
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#pragma intrinsic (__mfa)
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typedef struct {
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UINT64 Status;
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UINT64 r9;
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UINT64 r10;
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UINT64 r11;
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} PAL_PROC_RETURN;
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PAL_PROC_RETURN
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PalCallStatic (
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IN CONST VOID *PalEntryPoint,
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IN UINT64 Arg1,
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IN UINT64 Arg2,
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IN UINT64 Arg3,
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IN UINT64 Arg4
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);
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/**
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Generates a breakpoint on the CPU.
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Generates a breakpoint on the CPU. The breakpoint must be implemented such
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that code can resume normal execution after the breakpoint.
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**/
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VOID
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EFIAPI
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CpuBreakpoint (
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VOID
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)
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{
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__break (0);
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}
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/**
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Used to serialize load and store operations.
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All loads and stores that proceed calls to this function are guaranteed to be
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globally visible when this function returns.
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**/
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VOID
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EFIAPI
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MemoryFence (
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VOID
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)
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{
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__mfa ();
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}
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/**
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Disables CPU interrupts.
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Disables CPU interrupts.
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**/
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VOID
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EFIAPI
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DisableInterrupts (
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VOID
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)
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{
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_disable ();
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}
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/**
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Enables CPU interrupts.
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Enables CPU interrupts.
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**/
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VOID
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EFIAPI
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EnableInterrupts (
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VOID
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)
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{
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_enable ();
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}
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/**
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Enables CPU interrupts for the smallest window required to capture any
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pending interrupts.
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Enables CPU interrupts for the smallest window required to capture any
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pending interrupts.
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**/
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VOID
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EFIAPI
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EnableDisableInterrupts (
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VOID
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)
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{
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EnableInterrupts ();
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DisableInterrupts ();
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}
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/**
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Places the CPU in a sleep state until an interrupt is received.
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Places the CPU in a sleep state until an interrupt is received. If interrupts
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are disabled prior to calling this function, then the CPU will be placed in a
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sleep state indefinitely.
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**/
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VOID
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EFIAPI
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CpuSleep (
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VOID
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)
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{
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PalCallStatic (NULL, 29, 0, 0, 0);
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}
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