| Cody P Schafer | a67f144 | 2014-03-14 16:00:37 +1100 | [diff] [blame] | 1 | #ifndef LINUX_POWERPC_PERF_HV_GPCI_H_ |
| 2 | #define LINUX_POWERPC_PERF_HV_GPCI_H_ |
| 3 | |
| 4 | #include <linux/types.h> |
| 5 | |
| 6 | /* From the document "H_GetPerformanceCounterInfo Interface" v1.07 */ |
| 7 | |
| 8 | /* H_GET_PERF_COUNTER_INFO argument */ |
| 9 | struct hv_get_perf_counter_info_params { |
| 10 | __be32 counter_request; /* I */ |
| 11 | __be32 starting_index; /* IO */ |
| 12 | __be16 secondary_index; /* IO */ |
| 13 | __be16 returned_values; /* O */ |
| 14 | __be32 detail_rc; /* O, only needed when called via *_norets() */ |
| 15 | |
| 16 | /* |
| 17 | * O, size each of counter_value element in bytes, only set for version |
| 18 | * >= 0x3 |
| 19 | */ |
| 20 | __be16 cv_element_size; |
| 21 | |
| 22 | /* I, 0 (zero) for versions < 0x3 */ |
| 23 | __u8 counter_info_version_in; |
| 24 | |
| 25 | /* O, 0 (zero) if version < 0x3. Must be set to 0 when making hcall */ |
| 26 | __u8 counter_info_version_out; |
| 27 | __u8 reserved[0xC]; |
| 28 | __u8 counter_value[]; |
| 29 | } __packed; |
| 30 | |
| 31 | /* |
| 32 | * counter info version => fw version/reference (spec version) |
| 33 | * |
| 34 | * 8 => power8 (1.07) |
| 35 | * [7 is skipped by spec 1.07] |
| 36 | * 6 => TLBIE (1.07) |
| 37 | * 5 => v7r7m0.phyp (1.05) |
| 38 | * [4 skipped] |
| 39 | * 3 => v7r6m0.phyp (?) |
| 40 | * [1,2 skipped] |
| 41 | * 0 => v7r{2,3,4}m0.phyp (?) |
| 42 | */ |
| 43 | #define COUNTER_INFO_VERSION_CURRENT 0x8 |
| 44 | |
| 45 | /* |
| 46 | * These determine the counter_value[] layout and the meaning of starting_index |
| 47 | * and secondary_index. |
| 48 | * |
| 49 | * Unless otherwise noted, @secondary_index is unused and ignored. |
| 50 | */ |
| 51 | enum counter_info_requests { |
| 52 | |
| 53 | /* GENERAL */ |
| 54 | |
| 55 | /* @starting_index: must be -1 (to refer to the current partition) |
| 56 | */ |
| 57 | CIR_SYSTEM_PERFORMANCE_CAPABILITIES = 0X40, |
| 58 | }; |
| 59 | |
| 60 | struct cv_system_performance_capabilities { |
| 61 | /* If != 0, allowed to collect data from other partitions */ |
| 62 | __u8 perf_collect_privileged; |
| 63 | |
| 64 | /* These following are only valid if counter_info_version >= 0x3 */ |
| 65 | #define CV_CM_GA (1 << 7) |
| 66 | #define CV_CM_EXPANDED (1 << 6) |
| 67 | #define CV_CM_LAB (1 << 5) |
| 68 | /* remaining bits are reserved */ |
| 69 | __u8 capability_mask; |
| 70 | __u8 reserved[0xE]; |
| 71 | } __packed; |
| 72 | |
| 73 | #endif |