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nshlib/irqaff: add irq affinity command

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add support for set an IRQ affinity to CPUs by software

qemu-armv7a/bmp: switch uart irq to different CPUs

nsh> ps
  PID GROUP PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK           STACK   USED  FILLED COMMAND
    0     0   0 FIFO     Kthread   - Ready              0000000000000000 004080 000536  13.1%  CPU0 IDLE
    1     1 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 004032 000296   7.3%  hpwork 0x4013f51c 0x4013f530
    2     2 100 RR       Task      - Running            0000000000000000 004056 001168  28.7%  nsh_main
nsh> irqaff 33 0x2
nsh> ps
  PID GROUP PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK           STACK   USED  FILLED COMMAND
    0     0   0 FIFO     Kthread   - Ready              0000000000000000 004080 000736  18.0%  CPU1 IDLE
    1     1 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 004032 000296   7.3%  hpwork 0x4013f544 0x4013f558
    2     2 100 RR       Task      - Running            0000000000000000 004056 001288  31.7%  nsh_main
nsh> irqaff 33 0x4
nsh> ps
  PID GROUP PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK           STACK   USED  FILLED COMMAND
    0     0   0 FIFO     Kthread   - Ready              0000000000000000 004080 000736  18.0%  CPU2 IDLE
    1     1 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 004032 000296   7.3%  hpwork 0x4013f56c 0x4013f580
    2     2 100 RR       Task      - Running            0000000000000000 004056 001168  28.7%  nsh_main
nsh> irqaff 33 0x8
nsh> ps
  PID GROUP PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK           STACK   USED  FILLED COMMAND
    0     0   0 FIFO     Kthread   - Ready              0000000000000000 004080 000736  18.0%  CPU3 IDLE
    1     1 192 RR       Kthread   - Waiting  Semaphore 0000000000000000 004032 000296   7.3%  hpwork 0x4013f594 0x4013f5a8
    2     2 100 RR       Task      - Running            0000000000000000 004056 001168  28.7%  nsh_main

Signed-off-by: chao an <anchao@lixiang.com>
This commit is contained in:
chao an
2024-03-28 18:30:10 +08:00
committed by Xiang Xiao
parent 84e186c9d1
commit 20c90d5b43
4 changed files with 41 additions and 0 deletions
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26
nshlib/nsh_syscmds.c
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@@ -518,6 +518,32 @@ int cmd_reset_cause(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
}
#endif
/****************************************************************************
* Name: cmd_irq_affinity
****************************************************************************/
#if defined(CONFIG_BOARDCTL_IRQ_AFFINITY) && !defined(CONFIG_NSH_DISABLE_IRQ_AFFINITY)
int cmd_irq_affinity(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
{
unsigned int affinity[2];
if (argc == 3)
{
affinity[0] = strtoul(argv[1], NULL, 0);
affinity[1] = strtoul(argv[2], NULL, 0);
if (affinity[1] == 0)
{
affinity[1] = 0x1;
}
return boardctl(BOARDIOC_IRQ_AFFINITY, (uintptr_t)affinity);
}
return ERROR;
}
#endif
/****************************************************************************
* Name: cmd_rpmsg
****************************************************************************/