source: mainline/kernel/arch/ia32/include/smp/smp.h@ 8078180

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8078180 was fe32163, checked in by Martin Decky <martin@…>, 15 years ago

improve support for inactive CPUs
major revision of MADT and MPS parsing code
limit the number of active CPUs on ia32 and amd64 to 8 (actually the APIC ID of all active CPUs must be in the range 0 .. 7 to avoid tripping on an assertion in APIC code)
fix off-by-one bug in MADT parsing code (missing the last entry)

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2 * Copyright (c) 2005 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup ia32
30 * @{
31 */
32/** @file
33 */
34
35#ifndef KERN_ia32_SMP_H_
36#define KERN_ia32_SMP_H_
37
38#include <typedefs.h>
39
40/** SMP config opertaions interface. */
41struct smp_config_operations {
42 /** Check whether a processor is enabled. */
43 bool (* cpu_enabled)(size_t);
44
45 /** Check whether a processor is BSP. */
46 bool (*cpu_bootstrap)(size_t);
47
48 /** Return APIC ID of a processor. */
49 uint8_t (*cpu_apic_id)(size_t);
50
51 /** Return mapping between IRQ and APIC pin. */
52 int (*irq_to_pin)(unsigned int);
53};
54
55extern int smp_irq_to_pin(unsigned int);
56
57#endif
58
59/** @}
60 */
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