1 What: /sys/devices/system/cpu/dscr_default 2 Date: 13-May-2014 3 KernelVersion: v3.15.0 4 Contact: 5 Description: 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. 10 Values: 64 bit unsigned integer (bit field) 11 12 What: /sys/devices/system/cpu/cpu[0-9]+/dscr 13 Date: 13-May-2014 14 KernelVersion: v3.15.0 15 Contact: 16 Description: 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. 25 Values: 64 bit unsigned integer (bit field) 26 27 What: /sys/devices/system/cpu/cpuX/topology/physical_package_id 28 Description: physical package id of cpuX. Typically corresponds to a physical 29 socket number, but the actual value is architecture and platform 30 dependent. 31 Values: integer 32 33 What: /sys/devices/system/cpu/cpuX/topology/die_id 34 Description: 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. 37 Values: integer 38 39 What: /sys/devices/system/cpu/cpuX/topology/core_id 40 Description: 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. 43 Values: integer 44 45 What: /sys/devices/system/cpu/cpuX/topology/cluster_id 46 Description: 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. 49 Values: integer 50 51 What: /sys/devices/system/cpu/cpuX/topology/book_id 52 Description: 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. 55 Values: integer 56 57 What: /sys/devices/system/cpu/cpuX/topology/drawer_id 58 Description: 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. 61 Values: integer 62 63 What: /sys/devices/system/cpu/cpuX/topology/core_cpus 64 Description: internal kernel map of CPUs within the same core. 65 (deprecated name: "thread_siblings") 66 Values: hexadecimal bitmask. 67 68 What: /sys/devices/system/cpu/cpuX/topology/core_cpus_list 69 Description: 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"). 72 Values: decimal list. 73 74 What: /sys/devices/system/cpu/cpuX/topology/package_cpus 75 Description: internal kernel map of the CPUs sharing the same physical_package_id. 76 (deprecated name: "core_siblings"). 77 Values: hexadecimal bitmask. 78 79 What: /sys/devices/system/cpu/cpuX/topology/package_cpus_list 80 Description: 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") 83 Values: decimal list. 84 85 What: /sys/devices/system/cpu/cpuX/topology/die_cpus 86 Description: internal kernel map of CPUs within the same die. 87 Values: hexadecimal bitmask. 88 89 What: /sys/devices/system/cpu/cpuX/topology/ppin 90 Description: per-socket protected processor inventory number 91 Values: hexadecimal. 92 93 What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list 94 Description: human-readable list of CPUs within the same die. 95 The format is like 0-3, 8-11, 14,17. 96 Values: decimal list. 97 98 What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus 99 Description: internal kernel map of CPUs within the same cluster. 100 Values: hexadecimal bitmask. 101 102 What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus_list 103 Description: human-readable list of CPUs within the same cluster. 104 The format is like 0-3, 8-11, 14,17. 105 Values: decimal list. 106 107 What: /sys/devices/system/cpu/cpuX/topology/book_siblings 108 Description: internal kernel map of cpuX's hardware threads within the same 109 book_id. it's only used on s390. 110 Values: hexadecimal bitmask. 111 112 What: /sys/devices/system/cpu/cpuX/topology/book_siblings_list 113 Description: 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. 116 Values: decimal list. 117 118 What: /sys/devices/system/cpu/cpuX/topology/drawer_siblings 119 Description: internal kernel map of cpuX's hardware threads within the same 120 drawer_id. it's only used on s390. 121 Values: hexadecimal bitmask. 122 123 What: /sys/devices/system/cpu/cpuX/topology/drawer_siblings_list 124 Description: 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. 127 Values: decimal list.
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