1What: /sys/devices/system/cpu/dscr_default 2Date: 13-May-2014 3KernelVersion: v3.15.0 4Contact: 5Description: Writes are equivalent to writing to 6 /sys/devices/system/cpu/cpuN/dscr on all CPUs. 7 Reads return the last written value or 0. 8 This value is not a global default: it is a way to set 9 all per-CPU defaults at the same time. 10Values: 64 bit unsigned integer (bit field) 11 12What: /sys/devices/system/cpu/cpu[0-9]+/dscr 13Date: 13-May-2014 14KernelVersion: v3.15.0 15Contact: 16Description: Default value for the Data Stream Control Register (DSCR) on 17 a CPU. 18 This default value is used when the kernel is executing and 19 for any process that has not set the DSCR itself. 20 If a process ever sets the DSCR (via direct access to the 21 SPR) that value will be persisted for that process and used 22 on any CPU where it executes (overriding the value described 23 here). 24 If set by a process it will be inherited by child processes. 25Values: 64 bit unsigned integer (bit field) 26 27What: /sys/devices/system/cpu/cpuX/topology/physical_package_id 28Description: physical package id of cpuX. Typically corresponds to a physical 29 socket number, but the actual value is architecture and platform 30 dependent. 31Values: integer 32 33What: /sys/devices/system/cpu/cpuX/topology/die_id 34Description: the CPU die ID of cpuX. Typically it is the hardware platform's 35 identifier (rather than the kernel's). The actual value is 36 architecture and platform dependent. 37Values: integer 38 39What: /sys/devices/system/cpu/cpuX/topology/core_id 40Description: the CPU core ID of cpuX. Typically it is the hardware platform's 41 identifier (rather than the kernel's). The actual value is 42 architecture and platform dependent. 43Values: integer 44 45What: /sys/devices/system/cpu/cpuX/topology/cluster_id 46Description: the cluster ID of cpuX. Typically it is the hardware platform's 47 identifier (rather than the kernel's). The actual value is 48 architecture and platform dependent. 49Values: integer 50 51What: /sys/devices/system/cpu/cpuX/topology/book_id 52Description: the book ID of cpuX. Typically it is the hardware platform's 53 identifier (rather than the kernel's). The actual value is 54 architecture and platform dependent. it's only used on s390. 55Values: integer 56 57What: /sys/devices/system/cpu/cpuX/topology/drawer_id 58Description: the drawer ID of cpuX. Typically it is the hardware platform's 59 identifier (rather than the kernel's). The actual value is 60 architecture and platform dependent. it's only used on s390. 61Values: integer 62 63What: /sys/devices/system/cpu/cpuX/topology/core_cpus 64Description: internal kernel map of CPUs within the same core. 65 (deprecated name: "thread_siblings") 66Values: hexadecimal bitmask. 67 68What: /sys/devices/system/cpu/cpuX/topology/core_cpus_list 69Description: human-readable list of CPUs within the same core. 70 The format is like 0-3, 8-11, 14,17. 71 (deprecated name: "thread_siblings_list"). 72Values: decimal list. 73 74What: /sys/devices/system/cpu/cpuX/topology/package_cpus 75Description: internal kernel map of the CPUs sharing the same physical_package_id. 76 (deprecated name: "core_siblings"). 77Values: hexadecimal bitmask. 78 79What: /sys/devices/system/cpu/cpuX/topology/package_cpus_list 80Description: human-readable list of CPUs sharing the same physical_package_id. 81 The format is like 0-3, 8-11, 14,17. 82 (deprecated name: "core_siblings_list") 83Values: decimal list. 84 85What: /sys/devices/system/cpu/cpuX/topology/die_cpus 86Description: internal kernel map of CPUs within the same die. 87Values: hexadecimal bitmask. 88 89What: /sys/devices/system/cpu/cpuX/topology/ppin 90Description: per-socket protected processor inventory number 91Values: hexadecimal. 92 93What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list 94Description: human-readable list of CPUs within the same die. 95 The format is like 0-3, 8-11, 14,17. 96Values: decimal list. 97 98What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus 99Description: internal kernel map of CPUs within the same cluster. 100Values: hexadecimal bitmask. 101 102What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus_list 103Description: human-readable list of CPUs within the same cluster. 104 The format is like 0-3, 8-11, 14,17. 105Values: decimal list. 106 107What: /sys/devices/system/cpu/cpuX/topology/book_siblings 108Description: internal kernel map of cpuX's hardware threads within the same 109 book_id. it's only used on s390. 110Values: hexadecimal bitmask. 111 112What: /sys/devices/system/cpu/cpuX/topology/book_siblings_list 113Description: human-readable list of cpuX's hardware threads within the same 114 book_id. 115 The format is like 0-3, 8-11, 14,17. it's only used on s390. 116Values: decimal list. 117 118What: /sys/devices/system/cpu/cpuX/topology/drawer_siblings 119Description: internal kernel map of cpuX's hardware threads within the same 120 drawer_id. it's only used on s390. 121Values: hexadecimal bitmask. 122 123What: /sys/devices/system/cpu/cpuX/topology/drawer_siblings_list 124Description: human-readable list of cpuX's hardware threads within the same 125 drawer_id. 126 The format is like 0-3, 8-11, 14,17. it's only used on s390. 127Values: decimal list. 128