This changes the thresholds for the liquid cooled G5 thermal
shutdown mechanism to prevent an errant shutdown.
This has been carried since about Fedora Core 5. I have no idea
if it's really needed or not.
---
--- linux-2.6.15/drivers/macintosh/therm_pm72.c.orig 2006-04-02
21:34:48.000000000 +0100
+++ linux-2.6.15/drivers/macintosh/therm_pm72.c 2006-04-02 22:33:27.000000000
+0100
@@ -924,10 +925,16 @@ static void do_monitor_cpu_combined(void
printk(KERN_WARNING "Warning ! Temperature way above maximum
(%d) !\n",
temp_combi >> 16);
state0->overtemp += CPU_MAX_OVERTEMP / 4;
- } else if (temp_combi > (state0->mpu.tmax << 16))
+ } else if (temp_combi > (state0->mpu.tmax << 16)) {
state0->overtemp++;
- else
+ printk(KERN_WARNING "Temperature %d above max %d. overtemp
%d\n",
+ temp_combi >> 16, state0->mpu.tmax, state0->overtemp);
+ } else {
+ if (state0->overtemp)
+ printk(KERN_WARNING "Temperature back down to %d\n",
+ temp_combi >> 16);
state0->overtemp = 0;
+ }
if (state0->overtemp >= CPU_MAX_OVERTEMP)
critical_state = 1;
if (state0->overtemp > 0) {
@@ -999,10 +1015,16 @@ static void do_monitor_cpu_split(struct
" (%d) !\n",
state->index, temp >> 16);
state->overtemp += CPU_MAX_OVERTEMP / 4;
- } else if (temp > (state->mpu.tmax << 16))
+ } else if (temp > (state->mpu.tmax << 16)) {
state->overtemp++;
- else
+ printk(KERN_WARNING "CPU %d temperature %d above max %d.
overtemp %d\n",
+ state->index, temp >> 16, state->mpu.tmax,
state->overtemp);
+ } else {
+ if (state->overtemp)
+ printk(KERN_WARNING "CPU %d temperature back down to
%d\n",
+ state->index, temp >> 16);
state->overtemp = 0;
+ }
if (state->overtemp >= CPU_MAX_OVERTEMP)
critical_state = 1;
if (state->overtemp > 0) {
@@ -1061,10 +1097,16 @@ static void do_monitor_cpu_rack(struct c
" (%d) !\n",
state->index, temp >> 16);
state->overtemp = CPU_MAX_OVERTEMP / 4;
- } else if (temp > (state->mpu.tmax << 16))
+ } else if (temp > (state->mpu.tmax << 16)) {
state->overtemp++;
- else
+ printk(KERN_WARNING "CPU %d temperature %d above max %d.
overtemp %d\n",
+ state->index, temp >> 16, state->mpu.tmax,
state->overtemp);
+ } else {
+ if (state->overtemp)
+ printk(KERN_WARNING "CPU %d temperature back down to
%d\n",
+ state->index, temp >> 16);
state->overtemp = 0;
+ }
if (state->overtemp >= CPU_MAX_OVERTEMP)
critical_state = 1;
if (state->overtemp > 0) {
--- linux-2.6.15/drivers/macintosh/therm_pm72.h~ 2006-01-03
03:21:10.000000000 +0000
+++ linux-2.6.15/drivers/macintosh/therm_pm72.h 2006-04-02 22:25:58.000000000
+0100
@@ -243,7 +243,7 @@ struct dimm_pid_state
#define CPU_TEMP_HISTORY_SIZE 2
#define CPU_POWER_HISTORY_SIZE 10
#define CPU_PID_INTERVAL 1
-#define CPU_MAX_OVERTEMP 30
+#define CPU_MAX_OVERTEMP 90
#define CPUA_PUMP_RPM_INDEX 7
#define CPUB_PUMP_RPM_INDEX 8
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