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Don't attempt to start the APs when restarting after a config change.

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Leave the APs running whilst the BSP repeats the dummy runs. This means
we need to bypass the barriers during a dummy run. The APs will wait at
the first barrier until the BSP starts the first real run.
This commit is contained in:
Martin Whitaker 2022-02-12 19:37:58 +00:00
parent c23b129e55
commit efc9a9c16a
1 changed files with 16 additions and 12 deletions
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28
app/main.c
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@ -120,10 +120,12 @@ volatile uintptr_t test_addr[MAX_CPUS];
//------------------------------------------------------------------------------
#define BARRIER \
if (TRACE_BARRIERS) { \
trace(my_cpu, "Start barrier wait at %s line %i", __FILE__, __LINE__); \
} \
barrier_wait(start_barrier);
if (!dummy_run) { \
if (TRACE_BARRIERS) { \
trace(my_cpu, "Start barrier wait at %s line %i", __FILE__, __LINE__); \
} \
barrier_wait(start_barrier); \
}
static void run_at(uintptr_t addr, int my_cpu)
{
@ -580,15 +582,17 @@ void main(void)
if (dummy_run && pass_num == NUM_PASS_TYPES) {
start_run = true;
dummy_run = false;
barrier_init(start_barrier, num_enabled_cpus);
int failed = smp_start(cpu_state);
if (failed) {
const char *message = "Failed to start CPU core %i. Press any key to reboot...";
display_notice_with_args(strlen(message), message, failed);
while (get_key() == 0) { }
reboot();
if (init_state < 2) {
barrier_init(start_barrier, num_enabled_cpus);
int failed = smp_start(cpu_state);
if (failed) {
const char *message = "Failed to start CPU core %i. Press any key to reboot...";
display_notice_with_args(strlen(message), message, failed);
while (get_key() == 0) { }
reboot();
}
init_state = 2;
}
init_state = 2;
continue;
}