4.115
Last change
on this file since 4627fcd was
4627fcd,
checked in by Sebastian Huber <sebastian.huber@…>, on 02/17/14 at 13:25:29
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score: Rename bsp_smp_initialize()
Rename bsp_smp_initialize() into _CPU_SMP_Initialize() since every CPU
port must supply this function.
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-
Property mode set to
100644
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File size:
1.5 KB
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1 | /* |
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2 | * Copyright (c) 2013 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <info@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.com/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #include <assert.h> |
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16 | |
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17 | #include <rtems/bspsmp.h> |
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18 | |
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19 | #include <libcpu/arm-cp15.h> |
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20 | |
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21 | #include <bsp/irq.h> |
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22 | |
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23 | static void ipi_handler(void *arg) |
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24 | { |
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25 | rtems_smp_process_interrupt(); |
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26 | } |
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27 | |
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28 | uint32_t _CPU_SMP_Initialize(uint32_t configured_cpu_count) |
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29 | { |
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30 | rtems_status_code sc; |
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31 | uint32_t max_cpu_count = arm_gic_irq_processor_count(); |
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32 | uint32_t used_cpu_count = configured_cpu_count < max_cpu_count ? |
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33 | configured_cpu_count : max_cpu_count; |
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34 | |
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35 | sc = rtems_interrupt_handler_install( |
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36 | ARM_GIC_IRQ_SGI_0, |
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37 | "IPI", |
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38 | RTEMS_INTERRUPT_UNIQUE, |
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39 | ipi_handler, |
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40 | NULL |
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41 | ); |
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42 | assert(sc == RTEMS_SUCCESSFUL); |
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43 | |
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44 | return used_cpu_count; |
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45 | } |
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46 | |
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47 | void bsp_smp_broadcast_interrupt(void) |
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48 | { |
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49 | /* |
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50 | * FIXME: This broadcasts the interrupt also to processors not used by RTEMS. |
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51 | */ |
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52 | rtems_status_code sc = arm_gic_irq_generate_software_irq( |
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53 | ARM_GIC_IRQ_SGI_0, |
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54 | ARM_GIC_IRQ_SOFTWARE_IRQ_TO_ALL_EXCEPT_SELF, |
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55 | 0xff |
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56 | ); |
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57 | } |
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58 | |
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59 | void _CPU_SMP_Send_interrupt( uint32_t target_processor_index ) |
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60 | { |
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61 | rtems_status_code sc = arm_gic_irq_generate_software_irq( |
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62 | ARM_GIC_IRQ_SGI_0, |
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63 | ARM_GIC_IRQ_SOFTWARE_IRQ_TO_ALL_IN_LIST, |
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64 | (uint8_t) (1U << target_processor_index) |
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65 | ); |
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66 | } |
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