Closed anchao closed 3 months ago
nshlib/irqaff: add irq affinity command
add support for set an IRQ affinity to CPUs by software
Signed-off-by: chao an anchao@lixiang.com
N/A
Depends on: https://github.com/apache/nuttx/pull/12020
qemu-armv7a/bmp ostest on single core
nuttx$ qemu-system-arm -cpu cortex-a7 -nographic -machine virt,virtualization=off,gic-version=2 -net none -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -kernel ./nuttx -smp 4 NuttShell (N NuttS Nutt NH) NutShellShetSutlltX- (NSH) NuttX-10.4.0 4t(NheSH) NuttX-ns0.h> 1ll (NSH) Nu0.4.0 nstX-1h> 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
Summary
nshlib/irqaff: add irq affinity command
add support for set an IRQ affinity to CPUs by software
Signed-off-by: chao an anchao@lixiang.com
Impact
N/A
Depends on: https://github.com/apache/nuttx/pull/12020
Testing
qemu-armv7a/bmp ostest on single core