diff options
Diffstat (limited to '')
| -rw-r--r-- | demo/demo.h | 1 | ||||
| -rw-r--r-- | demo/main.c | 19 | ||||
| -rw-r--r-- | demo/smp.c | 7 |
3 files changed, 11 insertions, 16 deletions
diff --git a/demo/demo.h b/demo/demo.h index ca6199e..f01b36c 100644 --- a/demo/demo.h +++ b/demo/demo.h @@ -26,7 +26,6 @@ void console_init(void); void print(const char *fmt, ...); void read_line(char *vuf, unsigned size); -int cpus_ready(void); void run_cpu(unsigned num); void run_cpus(unsigned mask); void halt_cpu(unsigned num); diff --git a/demo/main.c b/demo/main.c index 10067d2..40e903c 100644 --- a/demo/main.c +++ b/demo/main.c @@ -4,6 +4,8 @@ static struct cpu cpu0, cpu1, cpu2, cpu3; struct cpu *__cpus[] = { &cpu0, &cpu1, &cpu2, &cpu3 }; +volatile static unsigned boot_done; + static void cmd_run(char **tokens) { unsigned mask; @@ -53,11 +55,12 @@ static void cmd_cache(char **tokens) cache_debug(cpu, ptr); } -void bsp_main(void) +static void bsp_main(void) { + boot_done = 0; run_cpu(1); - while (!cpus_ready()); + while (!boot_done); print("booted %u cpus", NUM_CPUS); while (1) { @@ -85,10 +88,12 @@ void bsp_main(void) } } -void ap_main(void) +static void ap_main(void) { if (this_cpu->num < NUM_CPUS - 1) run_cpu(this_cpu->num + 1); + else + boot_done = 1; halt_cpu(this_cpu->num); @@ -98,14 +103,10 @@ void ap_main(void) void reset(void) { - if (this_cpu->num == 0) { + if (this_cpu->num == 0) console_init(); - for (struct cpu **cpu = __cpus; cpu < __cpus + NUM_CPUS; ++cpu) { - } - } - - print("core taken out of reset"); + print("exited reset"); if (this_cpu->num == 0) bsp_main(); @@ -3,11 +3,6 @@ #define SMP_CTRL_BASE 0x30140000 #define SMP_CTRL (*(volatile unsigned *)SMP_CTRL_BASE) -int cpus_ready(void) -{ - return SMP_CTRL == 0; -} - void run_cpu(unsigned num) { run_cpus(1 << num); @@ -32,7 +27,7 @@ void run_cpus(unsigned mask) void halt_cpu(unsigned num) { - halt_cpu(1 << num); + halt_cpus(1 << num); } void halt_cpus(unsigned mask) |