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