| [26a8604f] | 1 | /*
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| [df4ed85] | 2 | * Copyright (c) 2005 Jakub Jermar
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| [26a8604f] | 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| [174156fd] | 29 | /** @addtogroup kernel_generic
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| [b45c443] | 30 | * @{
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| 31 | */
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| 32 |
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| [cf26ba9] | 33 | /**
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| [b45c443] | 34 | * @file
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| [26d3ae2] | 35 | * @brief Generic IPI interface.
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| [cf26ba9] | 36 | */
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| [26d3ae2] | 37 |
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| [5f85c91] | 38 | #ifdef CONFIG_SMP
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| [26a8604f] | 39 |
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| 40 | #include <smp/ipi.h>
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| 41 | #include <config.h>
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| 42 |
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| [70527f1] | 43 | /** Broadcast IPI message
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| 44 | *
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| 45 | * Broadcast IPI message to all CPUs.
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| 46 | *
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| 47 | * @param ipi Message to broadcast.
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| 48 | *
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| 49 | */
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| [26a8604f] | 50 | void ipi_broadcast(int ipi)
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| 51 | {
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| 52 | /*
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| 53 | * Provisions must be made to avoid sending IPI:
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| 54 | * - before all CPU's were configured to accept the IPI
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| [5f85c91] | 55 | * - if there is only one CPU but the kernel was compiled with CONFIG_SMP
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| [26a8604f] | 56 | */
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| [a35b458] | 57 |
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| [fe32163] | 58 | if (config.cpu_count > 1)
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| [26a8604f] | 59 | ipi_broadcast_arch(ipi);
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| 60 | }
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| 61 |
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| [5f85c91] | 62 | #endif /* CONFIG_SMP */
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| [b45c443] | 63 |
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| [cc73a8a1] | 64 | /** @}
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| [b45c443] | 65 | */
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