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 HV_PERF_DOMAIN_MAX, 11 }; 12 13 struct hv_24x7_request { 14 /* PHYSICAL domains require enabling via phyp/hmc. */ 15 __u8 performance_domain; 16 __u8 reserved[0x1]; 17 18 /* bytes to read starting at @data_offset. must be a multiple of 8 */ 19 __be16 data_size; 20 21 /* 22 * byte offset within the perf domain to read from. must be 8 byte 23 * aligned 24 */ 25 __be32 data_offset; 26 27 /* 28 * only valid for VIRTUAL_PROCESSOR domains, ignored for others. 29 * -1 means "current partition only" 30 * Enabling via phyp/hmc required for non-"-1" values. 0 forbidden 31 * unless requestor is 0. 32 */ 33 __be16 starting_lpar_ix; 34 35 /* 36 * Ignored when @starting_lpar_ix == -1 37 * Ignored when @performance_domain is not VIRTUAL_PROCESSOR_* 38 * -1 means "infinite" or all 39 */ 40 __be16 max_num_lpars; 41 42 /* chip, core, or virtual processor based on @performance_domain */ 43 __be16 starting_ix; 44 __be16 max_ix; 45 } __packed; 46 47 struct hv_24x7_request_buffer { 48 /* 0 - ? */ 49 /* 1 - ? */ 50 #define HV_24X7_IF_VERSION_CURRENT 0x01 51 __u8 interface_version; 52 __u8 num_requests; 53 __u8 reserved[0xE]; 54 struct hv_24x7_request requests[1]; 55 } __packed; 56 57 struct hv_24x7_result_element { 58 __be16 lpar_ix; 59 60 /* 61 * represents the core, chip, or virtual processor based on the 62 * request's @performance_domain 63 */ 64 __be16 domain_ix; 65 66 /* -1 if @performance_domain does not refer to a virtual processor */ 67 __be32 lpar_cfg_instance_id; 68 69 /* size = @result_element_data_size of cointaining result. */ 70 __u64 element_data[1]; 71 } __packed; 72 73 struct hv_24x7_result { 74 __u8 result_ix; 75 76 /* 77 * 0 = not all result elements fit into the buffer, additional requests 78 * required 79 * 1 = all result elements were returned 80 */ 81 __u8 results_complete; 82 __be16 num_elements_returned; 83 84 /* This is a copy of @data_size from the corresponding hv_24x7_request */ 85 __be16 result_element_data_size; 86 __u8 reserved[0x2]; 87 88 /* WARNING: only valid for first result element due to variable sizes 89 * of result elements */ 90 /* struct hv_24x7_result_element[@num_elements_returned] */ 91 struct hv_24x7_result_element elements[1]; 92 } __packed; 93 94 struct hv_24x7_data_result_buffer { 95 /* See versioning for request buffer */ 96 __u8 interface_version; 97 98 __u8 num_results; 99 __u8 reserved[0x1]; 100 __u8 failing_request_ix; 101 __be32 detailed_rc; 102 __be64 cec_cfg_instance_id; 103 __be64 catalog_version_num; 104 __u8 reserved2[0x8]; 105 /* WARNING: only valid for the first result due to variable sizes of 106 * results */ 107 struct hv_24x7_result results[1]; /* [@num_results] */ 108 } __packed; 109 110 #endif 111