1 /* 2 * 3 * (C) COPYRIGHT 2015 ARM Limited. All rights reserved. 4 * 5 * This program is free software and is provided to you under the terms of the 6 * GNU General Public License version 2 as published by the Free Software 7 * Foundation, and any use by you of this program is subject to the terms 8 * of such GNU licence. 9 * 10 * A copy of the licence is included with the program, and can also be obtained 11 * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 12 * Boston, MA 02110-1301, USA. 13 * 14 */ 15 16 17 18 #ifndef _KBASE_HWCNT_READER_H_ 19 #define _KBASE_HWCNT_READER_H_ 20 21 /* The ids of ioctl commands. */ 22 #define KBASE_HWCNT_READER 0xBE 23 #define KBASE_HWCNT_READER_GET_HWVER _IOR(KBASE_HWCNT_READER, 0x00, u32) 24 #define KBASE_HWCNT_READER_GET_BUFFER_SIZE _IOR(KBASE_HWCNT_READER, 0x01, u32) 25 #define KBASE_HWCNT_READER_DUMP _IOW(KBASE_HWCNT_READER, 0x10, u32) 26 #define KBASE_HWCNT_READER_CLEAR _IOW(KBASE_HWCNT_READER, 0x11, u32) 27 #define KBASE_HWCNT_READER_GET_BUFFER _IOR(KBASE_HWCNT_READER, 0x20,\ 28 struct kbase_hwcnt_reader_metadata) 29 #define KBASE_HWCNT_READER_PUT_BUFFER _IOW(KBASE_HWCNT_READER, 0x21,\ 30 struct kbase_hwcnt_reader_metadata) 31 #define KBASE_HWCNT_READER_SET_INTERVAL _IOW(KBASE_HWCNT_READER, 0x30, u32) 32 #define KBASE_HWCNT_READER_ENABLE_EVENT _IOW(KBASE_HWCNT_READER, 0x40, u32) 33 #define KBASE_HWCNT_READER_DISABLE_EVENT _IOW(KBASE_HWCNT_READER, 0x41, u32) 34 #define KBASE_HWCNT_READER_GET_API_VERSION _IOW(KBASE_HWCNT_READER, 0xFF, u32) 35 36 /** 37 * struct kbase_hwcnt_reader_metadata - hwcnt reader sample buffer metadata 38 * @timestamp: time when sample was collected 39 * @event_id: id of an event that triggered sample collection 40 * @buffer_idx: position in sampling area where sample buffer was stored 41 */ 42 struct kbase_hwcnt_reader_metadata { 43 u64 timestamp; 44 u32 event_id; 45 u32 buffer_idx; 46 }; 47 48 /** 49 * enum base_hwcnt_reader_event - hwcnt dumping events 50 * @BASE_HWCNT_READER_EVENT_MANUAL: manual request for dump 51 * @BASE_HWCNT_READER_EVENT_PERIODIC: periodic dump 52 * @BASE_HWCNT_READER_EVENT_PREJOB: prejob dump request 53 * @BASE_HWCNT_READER_EVENT_POSTJOB: postjob dump request 54 * @BASE_HWCNT_READER_EVENT_COUNT: number of supported events 55 */ 56 enum base_hwcnt_reader_event { 57 BASE_HWCNT_READER_EVENT_MANUAL, 58 BASE_HWCNT_READER_EVENT_PERIODIC, 59 BASE_HWCNT_READER_EVENT_PREJOB, 60 BASE_HWCNT_READER_EVENT_POSTJOB, 61 62 BASE_HWCNT_READER_EVENT_COUNT 63 }; 64 65 #endif /* _KBASE_HWCNT_READER_H_ */ 66 67