1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * 4 * (C) COPYRIGHT 2020-2022 ARM Limited. All rights reserved. 5 * 6 * This program is free software and is provided to you under the terms of the 7 * GNU General Public License version 2 as published by the Free Software 8 * Foundation, and any use by you of this program is subject to the terms 9 * of such GNU license. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, you can access it online at 18 * http://www.gnu.org/licenses/gpl-2.0.html. 19 * 20 */ 21 22 #ifndef _KBASE_DEBUG_KTRACE_DEFS_CSF_H_ 23 #define _KBASE_DEBUG_KTRACE_DEFS_CSF_H_ 24 25 #if KBASE_KTRACE_TARGET_RBUF 26 /** 27 * DOC: KTrace version history, CSF variant 28 * 29 * 1.0: 30 * First version, with version information in the header. 31 * 32 * 1.1: 33 * kctx field is no longer a pointer, and is now an ID of the format %d_%u as 34 * used by kctx directories in mali debugfs entries: (tgid creating the kctx), 35 * (unique kctx id) 36 * 37 * ftrace backend now outputs kctx field (as %d_%u format). 38 * 39 * Add fields group, slot, prio, csi into backend-specific part. 40 * 41 * 1.2: 42 * There is a new class of KCPU traces; with this, a new KCPU column in the 43 * ringbuffer RBUF (mali_trace) between csi and info_val, which is empty 44 * for non-kcpu related traces, and usually displays the KCPU Queue ID and 45 * an extra information value. ftrace also displays these KCPU traces. 46 * 47 * 1.3: 48 * Add a lot of extra new traces. Tweak some existing scheduler related traces 49 * to contain extra information information/happen at slightly different times. 50 * SCHEDULER_PROTM_EXIT now has group information 51 */ 52 #define KBASE_KTRACE_VERSION_MAJOR 1 53 #define KBASE_KTRACE_VERSION_MINOR 3 54 55 /* indicates if the trace message has valid queue-group related info. */ 56 #define KBASE_KTRACE_FLAG_CSF_GROUP (((kbase_ktrace_flag_t)1) << 0) 57 58 /* indicates if the trace message has valid queue related info. */ 59 #define KBASE_KTRACE_FLAG_CSF_QUEUE (((kbase_ktrace_flag_t)1) << 1) 60 61 /* indicates if the trace message has valid KCPU-queue related info. */ 62 #define KBASE_KTRACE_FLAG_CSF_KCPU (((kbase_ktrace_flag_t)1) << 2) 63 64 /* Collect all the flags together for debug checking */ 65 #define KBASE_KTRACE_FLAG_BACKEND_ALL \ 66 (KBASE_KTRACE_FLAG_CSF_GROUP | KBASE_KTRACE_FLAG_CSF_QUEUE | \ 67 KBASE_KTRACE_FLAG_CSF_KCPU) 68 69 /** 70 * union kbase_ktrace_backend - backend specific part of a trace message 71 * @kcpu: kcpu union member 72 * @kcpu.code: Identifies the event, refer to enum kbase_ktrace_code. 73 * @kcpu.flags: indicates information about the trace message itself. Used 74 * during dumping of the message. 75 * @kcpu.id: ID of the KCPU queue. 76 * @kcpu.extra_info_val: value specific to the type of KCPU event being traced. 77 * Refer to the KPU specific code in enum kbase_ktrace_code in 78 * mali_kbase_debug_ktrace_codes_csf.h 79 * @gpu: gpu union member 80 * @gpu.code: Identifies the event, refer to enum kbase_ktrace_code. 81 * @gpu.flags: indicates information about the trace message itself. Used 82 * during dumping of the message. 83 * @gpu.group_handle: Handle identifying the associated queue group. Only valid 84 * when @flags contains KBASE_KTRACE_FLAG_CSF_GROUP. 85 * @gpu.csg_nr: Number/index of the associated queue group's CS group to 86 * which it is mapped, or negative if none associated. Only 87 * valid when @flags contains KBASE_KTRACE_FLAG_CSF_GROUP. 88 * @gpu.slot_prio: The priority of the slot for the associated group, if it 89 * was scheduled. Hence, only valid when @csg_nr >=0 and 90 * @flags contains KBASE_KTRACE_FLAG_CSF_GROUP. 91 * @gpu.csi_index: ID of the associated queue's CS HW interface. 92 * Only valid when @flags contains KBASE_KTRACE_FLAG_CSF_QUEUE. 93 */ 94 95 union kbase_ktrace_backend { 96 /* Place 64 and 32-bit members together */ 97 /* Pack smaller members together */ 98 struct { 99 kbase_ktrace_code_t code; 100 kbase_ktrace_flag_t flags; 101 u8 id; 102 u64 extra_info_val; 103 } kcpu; 104 105 struct { 106 kbase_ktrace_code_t code; 107 kbase_ktrace_flag_t flags; 108 u8 group_handle; 109 s8 csg_nr; 110 u8 slot_prio; 111 s8 csi_index; 112 } gpu; 113 }; 114 115 #endif /* KBASE_KTRACE_TARGET_RBUF */ 116 #endif /* _KBASE_DEBUG_KTRACE_DEFS_CSF_H_ */ 117