diff options
| -rw-r--r-- | Documentation/ABI/stable/sysfs-devices-system-cpu | 4 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 6 | ||||
| -rw-r--r-- | arch/x86/include/asm/topology.h | 1 | ||||
| -rw-r--r-- | drivers/base/topology.c | 4 | ||||
| -rw-r--r-- | include/linux/topology.h | 3 |
5 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-devices-system-cpu b/Documentation/ABI/stable/sysfs-devices-system-cpu index 3965ce504484..902392d7eddf 100644 --- a/Documentation/ABI/stable/sysfs-devices-system-cpu +++ b/Documentation/ABI/stable/sysfs-devices-system-cpu @@ -86,6 +86,10 @@ What: /sys/devices/system/cpu/cpuX/topology/die_cpus Description: internal kernel map of CPUs within the same die. Values: hexadecimal bitmask. +What: /sys/devices/system/cpu/cpuX/topology/ppin +Description: per-socket protected processor inventory number +Values: hexadecimal. + What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list Description: human-readable list of CPUs within the same die. The format is like 0-3, 8-11, 14,17. diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 61f5676a7429..74962c200790 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -73,6 +73,7 @@ What: /sys/devices/system/cpu/cpuX/topology/core_id /sys/devices/system/cpu/cpuX/topology/physical_package_id /sys/devices/system/cpu/cpuX/topology/thread_siblings /sys/devices/system/cpu/cpuX/topology/thread_siblings_list + /sys/devices/system/cpu/cpuX/topology/ppin Date: December 2008 Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> Description: CPU topology files that describe a logical CPU's relationship @@ -103,6 +104,11 @@ Description: CPU topology files that describe a logical CPU's relationship thread_siblings_list: human-readable list of cpuX's hardware threads within the same core as cpuX + ppin: human-readable Protected Processor Identification + Number of the socket the cpu# belongs to. There should be + one per physical_package_id. File is readable only to + admin. + See Documentation/admin-guide/cputopology.rst for more information. diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 2f0b6be8eaab..43a89476a522 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -110,6 +110,7 @@ extern const struct cpumask *cpu_clustergroup_mask(int cpu); #define topology_logical_die_id(cpu) (cpu_data(cpu).logical_die_id) #define topology_die_id(cpu) (cpu_data(cpu).cpu_die_id) #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id) +#define topology_ppin(cpu) (cpu_data(cpu).ppin) extern unsigned int __max_die_per_package; diff --git a/drivers/base/topology.c b/drivers/base/topology.c index 044f3664f8f2..e9d1efcda89b 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -58,6 +58,9 @@ static DEVICE_ATTR_RO(cluster_id); define_id_show_func(core_id, "%d"); static DEVICE_ATTR_RO(core_id); +define_id_show_func(ppin, "0x%llx"); +static DEVICE_ATTR_ADMIN_RO(ppin); + define_siblings_read_func(thread_siblings, sibling_cpumask); static BIN_ATTR_RO(thread_siblings, 0); static BIN_ATTR_RO(thread_siblings_list, 0); @@ -145,6 +148,7 @@ static struct attribute *default_attrs[] = { #ifdef TOPOLOGY_DRAWER_SYSFS &dev_attr_drawer_id.attr, #endif + &dev_attr_ppin.attr, NULL }; diff --git a/include/linux/topology.h b/include/linux/topology.h index a6e201758ae9..f19bc3626297 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -211,6 +211,9 @@ static inline int cpu_to_mem(int cpu) #ifndef topology_drawer_id #define topology_drawer_id(cpu) ((void)(cpu), -1) #endif +#ifndef topology_ppin +#define topology_ppin(cpu) ((void)(cpu), 0ull) +#endif #ifndef topology_sibling_cpumask #define topology_sibling_cpumask(cpu) cpumask_of(cpu) #endif |