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authorJosh Boyer <jwboyer@gmail.com>2010-02-05 03:52:16 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-03-09 11:55:27 +1100
commitde0b632ba05bc88949e67d33d1c313fcf922ae2e (patch)
tree9406ef8826300295b73b266d2fa754a3b0f21135 /drivers/macintosh
parentf09b7b2a1115d3afe02c66156746287f6c63bba0 (diff)
downloadop-kernel-dev-de0b632ba05bc88949e67d33d1c313fcf922ae2e.zip
op-kernel-dev-de0b632ba05bc88949e67d33d1c313fcf922ae2e.tar.gz
powerpc: Fix G5 thermal shutdown
This changes the thresholds for the liquid cooled G5 thermal shutdown mechanism to prevent an errant shutdown with some models. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/macintosh')
-rw-r--r--drivers/macintosh/therm_pm72.c30
-rw-r--r--drivers/macintosh/therm_pm72.h2
2 files changed, 25 insertions, 7 deletions
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index 5738d8b..921373e 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -948,10 +948,16 @@ 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) {
@@ -1023,10 +1029,16 @@ static void do_monitor_cpu_split(struct cpu_pid_state *state)
" (%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) {
@@ -1085,10 +1097,16 @@ static void do_monitor_cpu_rack(struct cpu_pid_state *state)
" (%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) {
diff --git a/drivers/macintosh/therm_pm72.h b/drivers/macintosh/therm_pm72.h
index 393cc9d..df3680e 100644
--- a/drivers/macintosh/therm_pm72.h
+++ b/drivers/macintosh/therm_pm72.h
@@ -269,7 +269,7 @@ struct slots_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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