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-rw-r--r--core/init.c3
-rw-r--r--hw/occ.c23
2 files changed, 23 insertions, 3 deletions
diff --git a/core/init.c b/core/init.c
index 6eb4d830..36cf28de 100644
--- a/core/init.c
+++ b/core/init.c
@@ -486,6 +486,8 @@ void __noreturn load_and_boot_kernel(bool is_reboot)
ipmi_set_fw_progress_sensor(IPMI_FW_OS_BOOT);
+ occ_pstates_init();
+
if (!is_reboot) {
/* We wait for the nvram read to complete here so we can
* grab stuff from there such as the kernel arguments
@@ -499,7 +501,6 @@ void __noreturn load_and_boot_kernel(bool is_reboot)
* OCC takes few secs to boot. Call this as late as
* as possible to avoid delay.
*/
- occ_pstates_init();
occ_sensors_init();
} else {
diff --git a/hw/occ.c b/hw/occ.c
index f3f12312..fb7e6836 100644
--- a/hw/occ.c
+++ b/hw/occ.c
@@ -1556,8 +1556,24 @@ void occ_pstates_init(void)
if (proc_gen < proc_gen_p8)
return;
/* Handle fast reboots */
- if (occ_pstates_initialized)
- return;
+ if (occ_pstates_initialized) {
+ struct dt_node *power_mgt;
+ int i;
+ const char *props[] = {
+ "ibm,pstate-core-max",
+ "ibm,pstate-frequencies-mhz",
+ "ibm,pstate-ids",
+ "ibm,pstate-max",
+ "ibm,pstate-min",
+ "ibm,pstate-nominal",
+ "ibm,pstate-turbo",
+ "ibm,pstate-ultra-turbo",
+ };
+
+ power_mgt = dt_find_by_path(dt_root, "/ibm,opal/power-mgt");
+ for (i = 0; i < ARRAY_SIZE(props); i++)
+ dt_check_del_prop(power_mgt, props[i]);
+ }
switch (proc_gen) {
case proc_gen_p8:
@@ -1605,6 +1621,9 @@ void occ_pstates_init(void)
cpu_pstates_prepare_core(chip, c, pstate_nom);
}
+ if (occ_pstates_initialized)
+ return;
+
/* Add opal_poller to poll OCC throttle status of each chip */
for_each_chip(chip)
chip->throttle = 0;
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