From: Zhang Rui <rui.zhang@xxxxxxxxx>
Package temperature sensors are actually implemented in hardware per-die.
Update coretemp to be "die-aware", so it can expose mulitple sensors
per package, instead of just one. No change to single-die/package
systems.
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: linux-pm@xxxxxxxxxxxxxxx
Cc: linux-hwmon@xxxxxxxxxxxxxxx
---
drivers/hwmon/coretemp.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 5d34f7271e67..23a2d90534c7 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -435,7 +435,7 @@ static int chk_ucode_version(unsigned int cpu)
static struct platform_device *coretemp_get_pdev(unsigned int cpu)
{
- int pkgid = topology_logical_package_id(cpu);
+ int pkgid = topology_logical_die_id(cpu);
if (pkgid >= 0 && pkgid < max_packages)
return pkg_devices[pkgid];
@@ -579,7 +579,7 @@ static struct platform_driver coretemp_driver = {
static struct platform_device *coretemp_device_add(unsigned int cpu)
{
- int err, pkgid = topology_logical_package_id(cpu);
+ int err, pkgid = topology_logical_die_id(cpu);
struct platform_device *pdev;
if (pkgid < 0)
@@ -703,7 +703,7 @@ static int coretemp_cpu_offline(unsigned int cpu)
* the rest.
*/
if (cpumask_empty(&pd->cpumask)) {
- pkg_devices[topology_logical_package_id(cpu)] = NULL;
+ pkg_devices[topology_logical_die_id(cpu)] = NULL;
platform_device_unregister(pdev);
return 0;
}
@@ -732,6 +732,7 @@ static enum cpuhp_state coretemp_hp_online;
static int __init coretemp_init(void)
{
int err;
+ struct cpuinfo_x86 *c = &cpu_data(0);
/*
* CPUID.06H.EAX[0] indicates whether the CPU has thermal
@@ -741,7 +742,7 @@ static int __init coretemp_init(void)
if (!x86_match_cpu(coretemp_ids))
return -ENODEV;
- max_packages = topology_max_packages();
+ max_packages = topology_max_packages() * topology_max_die_per_package();
pkg_devices = kcalloc(max_packages, sizeof(struct platform_device *),
GFP_KERNEL);
if (!pkg_devices)
--
2.18.0-rc0
