1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2016, Linaro Limited 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef __PTA_GPROF_H 30 #define __PTA_GPROF_H 31 32 /* 33 * Interface to the gprof pseudo-TA, which is used by libutee to control TA 34 * profiling and forward data to tee-supplicant. 35 */ 36 37 #define PTA_GPROF_UUID { 0x2f6e0d48, 0xc574, 0x426d, { \ 38 0x82, 0x4e, 0x40, 0x19, 0x8c, 0xde, 0x5c, 0xac } } 39 40 /* 41 * Send TA profiling data (gmon.out format) to tee-supplicant 42 * Data may be sent in several chunks: first set id to 0, then re-use the 43 * allocated value in subsequent calls. 44 * 45 * [in/out] value[0].a: id 46 * [in] memref[1]: profiling data 47 */ 48 #define PTA_GPROF_SEND 0 49 50 /* 51 * Start PC sampling of a user TA session 52 * 53 * [in/out] memref[0]: sampling buffer 54 * [in] value[1].a: offset: the lowest PC value in the TA 55 * [in] value[1].b: scale: histogram scaling factor 56 */ 57 #define PTA_GPROF_START_PC_SAMPLING 1 58 59 /* 60 * Stop PC sampling of a user TA session and retrieve data 61 * 62 * [out] value[0].a: sampling frequency 63 */ 64 #define PTA_GPROF_STOP_PC_SAMPLING 2 65 66 #endif /* __PTA_GPROF_H */ 67