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