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a8b2c436 CS |
1 | #ifndef LINUX_POWERPC_PERF_HV_24X7_H_ |
2 | #define LINUX_POWERPC_PERF_HV_24X7_H_ | |
3 | ||
4 | #include <linux/types.h> | |
5 | ||
5c5cd7b5 CS |
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 | ||
a8b2c436 CS |
12 | struct hv_24x7_request { |
13 | /* PHYSICAL domains require enabling via phyp/hmc. */ | |
a8b2c436 CS |
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]; | |
145264e2 | 53 | struct hv_24x7_request requests[1]; |
a8b2c436 CS |
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. */ | |
145264e2 | 69 | __u64 element_data[1]; |
a8b2c436 CS |
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] */ | |
145264e2 | 90 | struct hv_24x7_result_element elements[1]; |
a8b2c436 CS |
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 */ | |
145264e2 | 106 | struct hv_24x7_result results[1]; /* [@num_results] */ |
a8b2c436 CS |
107 | } __packed; |
108 | ||
109 | #endif |