1 /*
2 * Copyright 2020 Advanced Micro Devices, Inc.
3 * Copyright 2020 Valve Corporation
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * on the rights to use, copy, modify, merge, publish, distribute, sub
10 * license, and/or sell copies of the Software, and to permit persons to whom
11 * the Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
23 * USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26 #include "ac_sqtt.h"
27
28 #include "ac_gpu_info.h"
29 #include "util/u_math.h"
30 #include "util/os_time.h"
31
32 uint64_t
ac_thread_trace_get_info_offset(unsigned se)33 ac_thread_trace_get_info_offset(unsigned se)
34 {
35 return sizeof(struct ac_thread_trace_info) * se;
36 }
37
38 uint64_t
ac_thread_trace_get_data_offset(const struct radeon_info * rad_info,const struct ac_thread_trace_data * data,unsigned se)39 ac_thread_trace_get_data_offset(const struct radeon_info *rad_info,
40 const struct ac_thread_trace_data *data, unsigned se)
41 {
42 unsigned max_se = rad_info->max_se;
43 uint64_t data_offset;
44
45 data_offset = align64(sizeof(struct ac_thread_trace_info) * max_se,
46 1 << SQTT_BUFFER_ALIGN_SHIFT);
47 data_offset += data->buffer_size * se;
48
49 return data_offset;
50 }
51
52 uint64_t
ac_thread_trace_get_info_va(uint64_t va,unsigned se)53 ac_thread_trace_get_info_va(uint64_t va, unsigned se)
54 {
55 return va + ac_thread_trace_get_info_offset(se);
56 }
57
58 uint64_t
ac_thread_trace_get_data_va(const struct radeon_info * rad_info,const struct ac_thread_trace_data * data,uint64_t va,unsigned se)59 ac_thread_trace_get_data_va(const struct radeon_info *rad_info,
60 const struct ac_thread_trace_data *data, uint64_t va, unsigned se)
61 {
62 return va + ac_thread_trace_get_data_offset(rad_info, data, se);
63 }
64
65 bool
ac_is_thread_trace_complete(struct radeon_info * rad_info,const struct ac_thread_trace_data * data,const struct ac_thread_trace_info * info)66 ac_is_thread_trace_complete(struct radeon_info *rad_info,
67 const struct ac_thread_trace_data *data,
68 const struct ac_thread_trace_info *info)
69 {
70 if (rad_info->gfx_level >= GFX10) {
71 /* GFX10 doesn't have THREAD_TRACE_CNTR but it reports the number of
72 * dropped bytes per SE via THREAD_TRACE_DROPPED_CNTR. Though, this
73 * doesn't seem reliable because it might still report non-zero even if
74 * the SQTT buffer isn't full.
75 *
76 * The solution here is to compare the number of bytes written by the hw
77 * (in units of 32 bytes) to the SQTT buffer size. If it's equal, that
78 * means that the buffer is full and should be resized.
79 */
80 return !(info->cur_offset * 32 == data->buffer_size - 32);
81 }
82
83 /* Otherwise, compare the current thread trace offset with the number
84 * of written bytes.
85 */
86 return info->cur_offset == info->gfx9_write_counter;
87 }
88
89 uint32_t
ac_get_expected_buffer_size(struct radeon_info * rad_info,const struct ac_thread_trace_info * info)90 ac_get_expected_buffer_size(struct radeon_info *rad_info,
91 const struct ac_thread_trace_info *info)
92 {
93 if (rad_info->gfx_level >= GFX10) {
94 uint32_t dropped_cntr_per_se = info->gfx10_dropped_cntr / rad_info->max_se;
95 return ((info->cur_offset * 32) + dropped_cntr_per_se) / 1024;
96 }
97
98 return (info->gfx9_write_counter * 32) / 1024;
99 }
100
101 bool
ac_sqtt_add_pso_correlation(struct ac_thread_trace_data * thread_trace_data,uint64_t pipeline_hash)102 ac_sqtt_add_pso_correlation(struct ac_thread_trace_data *thread_trace_data,
103 uint64_t pipeline_hash)
104 {
105 struct rgp_pso_correlation *pso_correlation = &thread_trace_data->rgp_pso_correlation;
106 struct rgp_pso_correlation_record *record;
107
108 record = malloc(sizeof(struct rgp_pso_correlation_record));
109 if (!record)
110 return false;
111
112 record->api_pso_hash = pipeline_hash;
113 record->pipeline_hash[0] = pipeline_hash;
114 record->pipeline_hash[1] = pipeline_hash;
115 memset(record->api_level_obj_name, 0, sizeof(record->api_level_obj_name));
116
117 simple_mtx_lock(&pso_correlation->lock);
118 list_addtail(&record->list, &pso_correlation->record);
119 pso_correlation->record_count++;
120 simple_mtx_unlock(&pso_correlation->lock);
121
122 return true;
123 }
124
125 bool
ac_sqtt_add_code_object_loader_event(struct ac_thread_trace_data * thread_trace_data,uint64_t pipeline_hash,uint64_t base_address)126 ac_sqtt_add_code_object_loader_event(struct ac_thread_trace_data *thread_trace_data,
127 uint64_t pipeline_hash,
128 uint64_t base_address)
129 {
130 struct rgp_loader_events *loader_events = &thread_trace_data->rgp_loader_events;
131 struct rgp_loader_events_record *record;
132
133 record = malloc(sizeof(struct rgp_loader_events_record));
134 if (!record)
135 return false;
136
137 record->loader_event_type = RGP_LOAD_TO_GPU_MEMORY;
138 record->reserved = 0;
139 record->base_address = base_address & 0xffffffffffff;
140 record->code_object_hash[0] = pipeline_hash;
141 record->code_object_hash[1] = pipeline_hash;
142 record->time_stamp = os_time_get_nano();
143
144 simple_mtx_lock(&loader_events->lock);
145 list_addtail(&record->list, &loader_events->record);
146 loader_events->record_count++;
147 simple_mtx_unlock(&loader_events->lock);
148
149 return true;
150 }
151
152 /* See https://gitlab.freedesktop.org/mesa/mesa/-/issues/5260
153 * On some HW SQTT can hang if we're not in one of the profiling pstates. */
154 bool
ac_check_profile_state(const struct radeon_info * info)155 ac_check_profile_state(const struct radeon_info *info)
156 {
157 char path[128];
158 char data[128];
159 int n;
160
161 snprintf(path, sizeof(path),
162 "/sys/bus/pci/devices/%04x:%02x:%02x.%x/power_dpm_force_performance_level",
163 info->pci_domain, info->pci_bus, info->pci_dev, info->pci_func);
164
165 FILE *f = fopen(path, "r");
166 if (!f)
167 return false; /* Unknown but optimistic. */
168 n = fread(data, 1, sizeof(data) - 1, f);
169 fclose(f);
170 data[n] = 0;
171 return strstr(data, "profile") == NULL;
172 }
173