static void rm31_tick(void) { int i, last_failure; if (!started) { started = 1; printk(KERN_INFO "windfarm: CPUs control loops started.\n"); for (i = 0; i < nr_chips; ++i) { if (cpu_setup_pid(i) < 0) { failure_state = FAILURE_PERM; set_fail_state(); break; } } DBG_LOTS("cpu_all_tmax=%d.%03d\n", FIX32TOPRINT(cpu_all_tmax)); backside_setup_pid(); slots_setup_pid(); #ifdef HACKED_OVERTEMP cpu_all_tmax = 60 << 16; #endif } /* Permanent failure, bail out */ if (failure_state & FAILURE_PERM) return; /* * Clear all failure bits except low overtemp which will be eventually * cleared by the control loop itself */ last_failure = failure_state; failure_state &= FAILURE_LOW_OVERTEMP; backside_fan_tick(); slots_fan_tick(); /* We do CPUs last because they can be clamped high by * DIMM temperature */ cpu_fans_tick(); DBG_LOTS(" last_failure: 0x%x, failure_state: %x\n", last_failure, failure_state); /* Check for failures. Any failure causes cpufreq clamping */ if (failure_state && last_failure == 0 && cpufreq_clamp) wf_control_set_max(cpufreq_clamp); if (failure_state == 0 && last_failure && cpufreq_clamp) wf_control_set_min(cpufreq_clamp); /* That's it for now, we might want to deal with other failures * differently in the future though */ }
static void pm112_tick(void) { int i, last_failure; if (!started) { started = 1; ; for (i = 0; i < nr_cores; ++i) { if (create_cpu_loop(i) < 0) { failure_state = FAILURE_PERM; set_fail_state(); break; } } DBG_LOTS("cpu_all_tmax=%d.%03d\n", FIX32TOPRINT(cpu_all_tmax)); #ifdef HACKED_OVERTEMP cpu_all_tmax = 60 << 16; #endif } /* Permanent failure, bail out */ if (failure_state & FAILURE_PERM) return; /* Clear all failure bits except low overtemp which will be eventually * cleared by the control loop itself */ last_failure = failure_state; failure_state &= FAILURE_LOW_OVERTEMP; cpu_fans_tick(); backside_fan_tick(); slots_fan_tick(); drive_bay_fan_tick(); DBG_LOTS("last_failure: 0x%x, failure_state: %x\n", last_failure, failure_state); /* Check for failures. Any failure causes cpufreq clamping */ if (failure_state && last_failure == 0 && cpufreq_clamp) wf_control_set_max(cpufreq_clamp); if (failure_state == 0 && last_failure && cpufreq_clamp) wf_control_set_min(cpufreq_clamp); /* That's it for now, we might want to deal with other failures * differently in the future though */ }