/*
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*
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* (C) COPYRIGHT 2015 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained
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* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef _KBASE_HWCNT_READER_H_
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#define _KBASE_HWCNT_READER_H_
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/* The ids of ioctl commands. */
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#define KBASE_HWCNT_READER 0xBE
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#define KBASE_HWCNT_READER_GET_HWVER _IOR(KBASE_HWCNT_READER, 0x00, u32)
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#define KBASE_HWCNT_READER_GET_BUFFER_SIZE _IOR(KBASE_HWCNT_READER, 0x01, u32)
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#define KBASE_HWCNT_READER_DUMP _IOW(KBASE_HWCNT_READER, 0x10, u32)
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#define KBASE_HWCNT_READER_CLEAR _IOW(KBASE_HWCNT_READER, 0x11, u32)
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#define KBASE_HWCNT_READER_GET_BUFFER _IOR(KBASE_HWCNT_READER, 0x20,\
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struct kbase_hwcnt_reader_metadata)
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#define KBASE_HWCNT_READER_PUT_BUFFER _IOW(KBASE_HWCNT_READER, 0x21,\
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struct kbase_hwcnt_reader_metadata)
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#define KBASE_HWCNT_READER_SET_INTERVAL _IOW(KBASE_HWCNT_READER, 0x30, u32)
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#define KBASE_HWCNT_READER_ENABLE_EVENT _IOW(KBASE_HWCNT_READER, 0x40, u32)
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#define KBASE_HWCNT_READER_DISABLE_EVENT _IOW(KBASE_HWCNT_READER, 0x41, u32)
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#define KBASE_HWCNT_READER_GET_API_VERSION _IOW(KBASE_HWCNT_READER, 0xFF, u32)
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/**
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* struct kbase_hwcnt_reader_metadata - hwcnt reader sample buffer metadata
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* @timestamp: time when sample was collected
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* @event_id: id of an event that triggered sample collection
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* @buffer_idx: position in sampling area where sample buffer was stored
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*/
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struct kbase_hwcnt_reader_metadata {
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u64 timestamp;
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u32 event_id;
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u32 buffer_idx;
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};
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/**
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* enum base_hwcnt_reader_event - hwcnt dumping events
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* @BASE_HWCNT_READER_EVENT_MANUAL: manual request for dump
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* @BASE_HWCNT_READER_EVENT_PERIODIC: periodic dump
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* @BASE_HWCNT_READER_EVENT_PREJOB: prejob dump request
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* @BASE_HWCNT_READER_EVENT_POSTJOB: postjob dump request
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* @BASE_HWCNT_READER_EVENT_COUNT: number of supported events
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*/
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enum base_hwcnt_reader_event {
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BASE_HWCNT_READER_EVENT_MANUAL,
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BASE_HWCNT_READER_EVENT_PERIODIC,
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BASE_HWCNT_READER_EVENT_PREJOB,
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BASE_HWCNT_READER_EVENT_POSTJOB,
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BASE_HWCNT_READER_EVENT_COUNT
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};
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#endif /* _KBASE_HWCNT_READER_H_ */
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