3 * (C) COPYRIGHT 2012-2016 ARM Limited. All rights reserved.
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
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.
20 #include <mali_kbase.h>
21 #include <mali_kbase_jm.h>
22 #include <mali_kbase_hwaccess_jm.h>
24 #define CREATE_TRACE_POINTS
26 #ifdef CONFIG_MALI_TRACE_TIMELINE
27 #include "mali_timeline.h"
29 #include <linux/debugfs.h>
30 #include <linux/seq_file.h>
32 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_atoms_in_flight);
33 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_atom);
34 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_gpu_slot_active);
35 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_gpu_slot_action);
36 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_gpu_power_active);
37 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_l2_power_active);
38 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_pm_event);
39 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_slot_atom);
40 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_pm_checktrans);
41 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_context_active);
43 struct kbase_trace_timeline_desc {
50 static struct kbase_trace_timeline_desc kbase_trace_timeline_desc_table[] = {
51 #define KBASE_TIMELINE_TRACE_CODE(enum_val, desc, format, format_desc) { #enum_val, desc, format, format_desc }
52 #include "mali_kbase_trace_timeline_defs.h"
53 #undef KBASE_TIMELINE_TRACE_CODE
56 #define KBASE_NR_TRACE_CODES ARRAY_SIZE(kbase_trace_timeline_desc_table)
58 static void *kbasep_trace_timeline_seq_start(struct seq_file *s, loff_t *pos)
60 if (*pos >= KBASE_NR_TRACE_CODES)
63 return &kbase_trace_timeline_desc_table[*pos];
66 static void kbasep_trace_timeline_seq_stop(struct seq_file *s, void *data)
70 static void *kbasep_trace_timeline_seq_next(struct seq_file *s, void *data, loff_t *pos)
74 if (*pos == KBASE_NR_TRACE_CODES)
77 return &kbase_trace_timeline_desc_table[*pos];
80 static int kbasep_trace_timeline_seq_show(struct seq_file *s, void *data)
82 struct kbase_trace_timeline_desc *trace_desc = data;
84 seq_printf(s, "%s#%s#%s#%s\n", trace_desc->enum_str, trace_desc->desc, trace_desc->format, trace_desc->format_desc);
89 static const struct seq_operations kbasep_trace_timeline_seq_ops = {
90 .start = kbasep_trace_timeline_seq_start,
91 .next = kbasep_trace_timeline_seq_next,
92 .stop = kbasep_trace_timeline_seq_stop,
93 .show = kbasep_trace_timeline_seq_show,
96 static int kbasep_trace_timeline_debugfs_open(struct inode *inode, struct file *file)
98 return seq_open(file, &kbasep_trace_timeline_seq_ops);
101 static const struct file_operations kbasep_trace_timeline_debugfs_fops = {
102 .open = kbasep_trace_timeline_debugfs_open,
105 .release = seq_release,
108 void kbasep_trace_timeline_debugfs_init(struct kbase_device *kbdev)
110 debugfs_create_file("mali_timeline_defs",
111 S_IRUGO, kbdev->mali_debugfs_directory, NULL,
112 &kbasep_trace_timeline_debugfs_fops);
115 void kbase_timeline_job_slot_submit(struct kbase_device *kbdev, struct kbase_context *kctx,
116 struct kbase_jd_atom *katom, int js)
118 lockdep_assert_held(&kbdev->js_data.runpool_irq.lock);
120 if (kbdev->timeline.slot_atoms_submitted[js] > 0) {
121 KBASE_TIMELINE_JOB_START_NEXT(kctx, js, 1);
123 base_atom_id atom_number = kbase_jd_atom_id(kctx, katom);
125 KBASE_TIMELINE_JOB_START_HEAD(kctx, js, 1);
126 KBASE_TIMELINE_JOB_START(kctx, js, atom_number);
128 ++kbdev->timeline.slot_atoms_submitted[js];
130 KBASE_TIMELINE_ATOMS_SUBMITTED(kctx, js, kbdev->timeline.slot_atoms_submitted[js]);
133 void kbase_timeline_job_slot_done(struct kbase_device *kbdev, struct kbase_context *kctx,
134 struct kbase_jd_atom *katom, int js,
135 kbasep_js_atom_done_code done_code)
137 lockdep_assert_held(&kbdev->js_data.runpool_irq.lock);
139 if (done_code & KBASE_JS_ATOM_DONE_EVICTED_FROM_NEXT) {
140 KBASE_TIMELINE_JOB_START_NEXT(kctx, js, 0);
142 /* Job finished in JS_HEAD */
143 base_atom_id atom_number = kbase_jd_atom_id(kctx, katom);
145 KBASE_TIMELINE_JOB_START_HEAD(kctx, js, 0);
146 KBASE_TIMELINE_JOB_STOP(kctx, js, atom_number);
148 /* see if we need to trace the job in JS_NEXT moving to JS_HEAD */
149 if (kbase_backend_nr_atoms_submitted(kbdev, js)) {
150 struct kbase_jd_atom *next_katom;
151 struct kbase_context *next_kctx;
153 /* Peek the next atom - note that the atom in JS_HEAD will already
154 * have been dequeued */
155 next_katom = kbase_backend_inspect_head(kbdev, js);
156 WARN_ON(!next_katom);
157 next_kctx = next_katom->kctx;
158 KBASE_TIMELINE_JOB_START_NEXT(next_kctx, js, 0);
159 KBASE_TIMELINE_JOB_START_HEAD(next_kctx, js, 1);
160 KBASE_TIMELINE_JOB_START(next_kctx, js, kbase_jd_atom_id(next_kctx, next_katom));
164 --kbdev->timeline.slot_atoms_submitted[js];
166 KBASE_TIMELINE_ATOMS_SUBMITTED(kctx, js, kbdev->timeline.slot_atoms_submitted[js]);
169 void kbase_timeline_pm_send_event(struct kbase_device *kbdev, enum kbase_timeline_pm_event event_sent)
174 /* If a producer already exists for the event, try to use their UID (multiple-producers) */
175 uid = atomic_read(&kbdev->timeline.pm_event_uid[event_sent]);
178 /* Get a new non-zero UID if we don't have one yet */
180 uid = atomic_inc_return(&kbdev->timeline.pm_event_uid_counter);
182 /* Try to use this UID */
183 if (old_uid != atomic_cmpxchg(&kbdev->timeline.pm_event_uid[event_sent], old_uid, uid))
184 /* If it changed, raced with another producer: we've lost this UID */
187 KBASE_TIMELINE_PM_SEND_EVENT(kbdev, event_sent, uid);
190 void kbase_timeline_pm_check_handle_event(struct kbase_device *kbdev, enum kbase_timeline_pm_event event)
192 int uid = atomic_read(&kbdev->timeline.pm_event_uid[event]);
195 if (uid != atomic_cmpxchg(&kbdev->timeline.pm_event_uid[event], uid, 0))
196 /* If it changed, raced with another consumer: we've lost this UID */
199 KBASE_TIMELINE_PM_HANDLE_EVENT(kbdev, event, uid);
203 void kbase_timeline_pm_handle_event(struct kbase_device *kbdev, enum kbase_timeline_pm_event event)
205 int uid = atomic_read(&kbdev->timeline.pm_event_uid[event]);
207 if (uid != atomic_cmpxchg(&kbdev->timeline.pm_event_uid[event], uid, 0))
208 /* If it changed, raced with another consumer: we've lost this UID */
211 KBASE_TIMELINE_PM_HANDLE_EVENT(kbdev, event, uid);
214 void kbase_timeline_pm_l2_transition_start(struct kbase_device *kbdev)
216 lockdep_assert_held(&kbdev->pm.power_change_lock);
217 /* Simply log the start of the transition */
218 kbdev->timeline.l2_transitioning = true;
219 KBASE_TIMELINE_POWERING_L2(kbdev);
222 void kbase_timeline_pm_l2_transition_done(struct kbase_device *kbdev)
224 lockdep_assert_held(&kbdev->pm.power_change_lock);
225 /* Simply log the end of the transition */
226 if (kbdev->timeline.l2_transitioning) {
227 kbdev->timeline.l2_transitioning = false;
228 KBASE_TIMELINE_POWERED_L2(kbdev);
232 #endif /* CONFIG_MALI_TRACE_TIMELINE */