1 #ifndef LINUX_POWERPC_PERF_HV_24X7_H_ 2 #define LINUX_POWERPC_PERF_HV_24X7_H_ 3 4 #include <linux/types.h> 5 6 enum hv_perf_domains { 7 #define DOMAIN(n, v, x, c) HV_PERF_DOMAIN_##n = v, 8 #include "hv-24x7-domains.h" 9 #undef DOMAIN 10 }; 11 12 struct hv_24x7_request { 13 /* PHYSICAL domains require enabling via phyp/hmc. */ 14 __u8 performance_domain; 15 __u8 reserved[0x1]; 16 17 /* bytes to read starting at @data_offset. must be a multiple of 8 */ 18 __be16 data_size; 19 20 /* 21 * byte offset within the perf domain to read from. must be 8 byte 22 * aligned 23 */ 24 __be32 data_offset; 25 26 /* 27 * only valid for VIRTUAL_PROCESSOR domains, ignored for others. 28 * -1 means "current partition only" 29 * Enabling via phyp/hmc required for non-"-1" values. 0 forbidden 30 * unless requestor is 0. 31 */ 32 __be16 starting_lpar_ix; 33 34 /* 35 * Ignored when @starting_lpar_ix == -1 36 * Ignored when @performance_domain is not VIRTUAL_PROCESSOR_* 37 * -1 means "infinite" or all 38 */ 39 __be16 max_num_lpars; 40 41 /* chip, core, or virtual processor based on @performance_domain */ 42 __be16 starting_ix; 43 __be16 max_ix; 44 } __packed; 45 46 struct hv_24x7_request_buffer { 47 /* 0 - ? */ 48 /* 1 - ? */ 49 #define HV_24X7_IF_VERSION_CURRENT 0x01 50 __u8 interface_version; 51 __u8 num_requests; 52 __u8 reserved[0xE]; 53 struct hv_24x7_request requests[1]; 54 } __packed; 55 56 struct hv_24x7_result_element { 57 __be16 lpar_ix; 58 59 /* 60 * represents the core, chip, or virtual processor based on the 61 * request's @performance_domain 62 */ 63 __be16 domain_ix; 64 65 /* -1 if @performance_domain does not refer to a virtual processor */ 66 __be32 lpar_cfg_instance_id; 67 68 /* size = @result_element_data_size of cointaining result. */ 69 __u64 element_data[1]; 70 } __packed; 71 72 struct hv_24x7_result { 73 __u8 result_ix; 74 75 /* 76 * 0 = not all result elements fit into the buffer, additional requests 77 * required 78 * 1 = all result elements were returned 79 */ 80 __u8 results_complete; 81 __be16 num_elements_returned; 82 83 /* This is a copy of @data_size from the coresponding hv_24x7_request */ 84 __be16 result_element_data_size; 85 __u8 reserved[0x2]; 86 87 /* WARNING: only valid for first result element due to variable sizes 88 * of result elements */ 89 /* struct hv_24x7_result_element[@num_elements_returned] */ 90 struct hv_24x7_result_element elements[1]; 91 } __packed; 92 93 struct hv_24x7_data_result_buffer { 94 /* See versioning for request buffer */ 95 __u8 interface_version; 96 97 __u8 num_results; 98 __u8 reserved[0x1]; 99 __u8 failing_request_ix; 100 __be32 detailed_rc; 101 __be64 cec_cfg_instance_id; 102 __be64 catalog_version_num; 103 __u8 reserved2[0x8]; 104 /* WARNING: only valid for the first result due to variable sizes of 105 * results */ 106 struct hv_24x7_result results[1]; /* [@num_results] */ 107 } __packed; 108 109 #endif 110