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- /*
- * CPUMF HW sampler functions and internal structures
- *
- * Copyright IBM Corp. 2010
- * Author(s): Heinz Graalfs <graalfs@de.ibm.com>
- */
- #ifndef HWSAMPLER_H_
- #define HWSAMPLER_H_
- #include <linux/workqueue.h>
- #include <asm/cpu_mf.h>
- struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */
- { /* bytes 0 - 7 Bit(s) */
- unsigned int s:1; /* 0: maximum buffer indicator */
- unsigned int h:1; /* 1: part. level reserved for VM use*/
- unsigned long b2_53:52; /* 2-53: zeros */
- unsigned int es:1; /* 54: sampling enable control */
- unsigned int b55_61:7; /* 55-61: - zeros */
- unsigned int cs:1; /* 62: sampling activation control */
- unsigned int b63:1; /* 63: zero */
- unsigned long interval; /* 8-15: sampling interval */
- unsigned long tear; /* 16-23: TEAR contents */
- unsigned long dear; /* 24-31: DEAR contents */
- /* 32-63: */
- unsigned long rsvrd1; /* reserved */
- unsigned long rsvrd2; /* reserved */
- unsigned long rsvrd3; /* reserved */
- unsigned long rsvrd4; /* reserved */
- };
- struct hws_cpu_buffer {
- unsigned long first_sdbt; /* @ of 1st SDB-Table for this CP*/
- unsigned long worker_entry;
- unsigned long sample_overflow; /* taken from SDB ... */
- struct hws_qsi_info_block qsi;
- struct hws_ssctl_request_block ssctl;
- struct work_struct worker;
- atomic_t ext_params;
- unsigned long req_alert;
- unsigned long loss_of_sample_data;
- unsigned long invalid_entry_address;
- unsigned long incorrect_sdbt_entry;
- unsigned long sample_auth_change_alert;
- unsigned int finish:1;
- unsigned int oom:1;
- unsigned int stop_mode:1;
- };
- int hwsampler_setup(void);
- int hwsampler_shutdown(void);
- int hwsampler_allocate(unsigned long sdbt, unsigned long sdb);
- int hwsampler_deallocate(void);
- unsigned long hwsampler_query_min_interval(void);
- unsigned long hwsampler_query_max_interval(void);
- int hwsampler_start_all(unsigned long interval);
- int hwsampler_stop_all(void);
- int hwsampler_deactivate(unsigned int cpu);
- int hwsampler_activate(unsigned int cpu);
- unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu);
- #endif /*HWSAMPLER_H_*/
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