source: rtems/bsps/i386/pc386/start/bspsmp.c @ 208cd6b

5
Last change on this file since 208cd6b was 208cd6b, checked in by Jan Sommer <jan.sommer@…>, on May 31, 2020 at 2:22:57 PM

bsps/pc386: Separate smp API functions. Makes smpfatal08 link

  • Property mode set to 100644
File size: 757 bytes
Line 
1
2#include <rtems/score/smpimpl.h>
3
4#include <bsp/apic.h>
5#include <bsp/smp-imps.h>
6#include <bsp.h>
7#include <rtems.h>
8
9void _CPU_SMP_Prepare_start_multitasking( void )
10{
11  /* Do nothing */
12}
13
14bool _CPU_SMP_Start_processor( uint32_t cpu_index )
15{
16  (void) cpu_index;
17
18  return true;
19}
20
21
22uint32_t _CPU_SMP_Get_current_processor( void )
23{
24  return imps_apic_cpu_map[APIC_ID(IMPS_LAPIC_READ(LAPIC_ID))];
25}
26
27uint32_t _CPU_SMP_Initialize( void )
28{
29  /* XXX need to deal with finding too many cores */
30
31  return (uint32_t) imps_probe();
32}
33
34void _CPU_SMP_Finalize_initialization( uint32_t cpu_count )
35{
36  if ( cpu_count > 1 )
37    ipi_install_irq();
38}
39
40void _CPU_SMP_Send_interrupt( uint32_t target_processor_index )
41{
42  send_ipi( target_processor_index, 0x30 );
43}
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