| 0,0 → 1,70 |
|---|
| /* |
| * Copyright (C) 2005 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup generic |
| * @{ |
| */ |
| |
| /** |
| * @file |
| * @brief Generic IPI interface. |
| */ |
| |
| #ifdef CONFIG_SMP |
| |
| #include <smp/ipi.h> |
| #include <config.h> |
| |
| |
| /** Broadcast IPI message |
| * |
| * Broadcast IPI message to all CPUs. |
| * |
| * @param ipi Message to broadcast. |
| * |
| * @bug The decision whether to actually send the IPI must be based |
| * on a different criterion. The current version has |
| * problems when some of the detected CPUs are marked |
| * disabled in machine configuration. |
| */ |
| void ipi_broadcast(int ipi) |
| { |
| /* |
| * Provisions must be made to avoid sending IPI: |
| * - before all CPU's were configured to accept the IPI |
| * - if there is only one CPU but the kernel was compiled with CONFIG_SMP |
| */ |
| |
| if ((config.cpu_active > 1) && (config.cpu_active == config.cpu_count)) |
| ipi_broadcast_arch(ipi); |
| } |
| |
| #endif /* CONFIG_SMP */ |
| |
| /** @} |
| */ |