| Heinz Graalfs | ec6a3df | 2011-01-21 10:06:52 +0000 | [diff] [blame] | 1 | /* |
| 2 | * CPUMF HW sampler functions and internal structures |
| 3 | * |
| 4 | * Copyright IBM Corp. 2010 |
| 5 | * Author(s): Heinz Graalfs <graalfs@de.ibm.com> |
| 6 | */ |
| 7 | |
| 8 | #ifndef HWSAMPLER_H_ |
| 9 | #define HWSAMPLER_H_ |
| 10 | |
| 11 | #include <linux/workqueue.h> |
| Hendrik Brueckner | cf48ad8 | 2013-12-11 12:15:52 +0100 | [diff] [blame] | 12 | #include <asm/cpu_mf.h> |
| Heinz Graalfs | ec6a3df | 2011-01-21 10:06:52 +0000 | [diff] [blame] | 13 | |
| 14 | struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */ |
| 15 | { /* bytes 0 - 7 Bit(s) */ |
| 16 | unsigned int s:1; /* 0: maximum buffer indicator */ |
| 17 | unsigned int h:1; /* 1: part. level reserved for VM use*/ |
| 18 | unsigned long b2_53:52; /* 2-53: zeros */ |
| 19 | unsigned int es:1; /* 54: sampling enable control */ |
| 20 | unsigned int b55_61:7; /* 55-61: - zeros */ |
| 21 | unsigned int cs:1; /* 62: sampling activation control */ |
| 22 | unsigned int b63:1; /* 63: zero */ |
| 23 | unsigned long interval; /* 8-15: sampling interval */ |
| 24 | unsigned long tear; /* 16-23: TEAR contents */ |
| 25 | unsigned long dear; /* 24-31: DEAR contents */ |
| 26 | /* 32-63: */ |
| 27 | unsigned long rsvrd1; /* reserved */ |
| 28 | unsigned long rsvrd2; /* reserved */ |
| 29 | unsigned long rsvrd3; /* reserved */ |
| 30 | unsigned long rsvrd4; /* reserved */ |
| 31 | }; |
| 32 | |
| 33 | struct hws_cpu_buffer { |
| 34 | unsigned long first_sdbt; /* @ of 1st SDB-Table for this CP*/ |
| 35 | unsigned long worker_entry; |
| 36 | unsigned long sample_overflow; /* taken from SDB ... */ |
| 37 | struct hws_qsi_info_block qsi; |
| 38 | struct hws_ssctl_request_block ssctl; |
| 39 | struct work_struct worker; |
| 40 | atomic_t ext_params; |
| 41 | unsigned long req_alert; |
| 42 | unsigned long loss_of_sample_data; |
| 43 | unsigned long invalid_entry_address; |
| 44 | unsigned long incorrect_sdbt_entry; |
| 45 | unsigned long sample_auth_change_alert; |
| 46 | unsigned int finish:1; |
| 47 | unsigned int oom:1; |
| 48 | unsigned int stop_mode:1; |
| 49 | }; |
| 50 | |
| Heinz Graalfs | ec6a3df | 2011-01-21 10:06:52 +0000 | [diff] [blame] | 51 | int hwsampler_setup(void); |
| 52 | int hwsampler_shutdown(void); |
| 53 | int hwsampler_allocate(unsigned long sdbt, unsigned long sdb); |
| 54 | int hwsampler_deallocate(void); |
| Martin Schwidefsky | 3d8dcb3 | 2011-05-10 17:13:42 +0200 | [diff] [blame] | 55 | unsigned long hwsampler_query_min_interval(void); |
| 56 | unsigned long hwsampler_query_max_interval(void); |
| Heinz Graalfs | ec6a3df | 2011-01-21 10:06:52 +0000 | [diff] [blame] | 57 | int hwsampler_start_all(unsigned long interval); |
| 58 | int hwsampler_stop_all(void); |
| 59 | int hwsampler_deactivate(unsigned int cpu); |
| 60 | int hwsampler_activate(unsigned int cpu); |
| 61 | unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu); |
| 62 | |
| 63 | #endif /*HWSAMPLER_H_*/ |