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/* SPDX-License-Identifier: GPL-2.0 */
/*
*
* (C) COPYRIGHT 2015, 2020-2021 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 license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#ifndef _UAPI_KBASE_HWCNT_READER_H_
#define _UAPI_KBASE_HWCNT_READER_H_
#include <stddef.h>
#include <linux/types.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 _IOC(_IOC_READ, KBASE_HWCNT_READER, 0x20,\
offsetof(struct kbase_hwcnt_reader_metadata, cycles))
#define KBASE_HWCNT_READER_GET_BUFFER_WITH_CYCLES _IOR(KBASE_HWCNT_READER, 0x20,\
struct kbase_hwcnt_reader_metadata)
#define KBASE_HWCNT_READER_PUT_BUFFER _IOC(_IOC_WRITE, KBASE_HWCNT_READER, 0x21,\
offsetof(struct kbase_hwcnt_reader_metadata, cycles))
#define KBASE_HWCNT_READER_PUT_BUFFER_WITH_CYCLES _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)
#define KBASE_HWCNT_READER_GET_API_VERSION_WITH_FEATURES \
_IOW(KBASE_HWCNT_READER, 0xFF, \
struct kbase_hwcnt_reader_api_version)
/**
* struct kbase_hwcnt_reader_metadata_cycles - GPU clock cycles
* @top: the number of cycles associated with the main clock for the
* GPU
* @shader_cores: the cycles that have elapsed on the GPU shader cores
*/
struct kbase_hwcnt_reader_metadata_cycles {
__u64 top;
__u64 shader_cores;
};
/**
* 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
* @cycles: the GPU cycles that occurred since the last sample
*/
struct kbase_hwcnt_reader_metadata {
__u64 timestamp;
__u32 event_id;
__u32 buffer_idx;
struct kbase_hwcnt_reader_metadata_cycles cycles;
};
/**
* 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
};
#define KBASE_HWCNT_READER_API_VERSION_NO_FEATURE (0)
#define KBASE_HWCNT_READER_API_VERSION_FEATURE_CYCLES_TOP (1 << 0)
#define KBASE_HWCNT_READER_API_VERSION_FEATURE_CYCLES_SHADER_CORES (1 << 1)
/**
* struct kbase_hwcnt_reader_api_version - hwcnt reader API version
* @version: API version
* @features: available features in this API version
*/
struct kbase_hwcnt_reader_api_version {
__u32 version;
__u32 features;
};
#endif /* _UAPI_KBASE_HWCNT_READER_H_ */
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