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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2005 Peter Ho |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
19 | |
20 | |
21 | #include <math.h> |
22 | #include <glib.h> |
23 | #include <gtk/gtk.h> |
24 | #include <gdk/gdk.h> |
25 | #include <stdio.h> |
26 | #include <stdlib.h> |
27 | #include <string.h> |
28 | #include <ltt/ltt.h> |
29 | #include <ltt/event.h> |
30 | #include <ltt/type.h> |
31 | #include <ltt/trace.h> |
32 | #include <ltt/facility.h> |
33 | #include <lttv/module.h> |
34 | #include <lttv/hook.h> |
35 | #include <lttv/tracecontext.h> |
36 | #include <lttv/state.h> |
37 | #include <lttv/filter.h> |
38 | #include <lttvwindow/lttvwindow.h> |
39 | #include <ltt/time.h> |
40 | |
41 | #include "hInterruptsInsert.xpm" |
42 | |
43 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
44 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
45 | #define NO_ITEMS 0 |
46 | |
47 | typedef struct { |
48 | guint cpu_id; |
49 | guint id; |
50 | guint frequency; |
51 | LttTime total_duration; |
52 | }Irq; |
53 | |
54 | typedef struct { |
55 | guint id; |
56 | guint cpu_id; |
57 | LttTime event_time; |
58 | }irq_entry; |
59 | |
60 | enum type_t { |
61 | IRQ_ENTRY, |
62 | IRQ_EXIT |
63 | }; |
64 | |
65 | /** Array containing instanced objects. Used when module is unloaded */ |
66 | static GSList *interrupt_data_list = NULL ; |
67 | |
68 | |
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69 | #define TRACE_NUMBER 0 |
70 | |
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71 | typedef struct _InterruptEventData { |
72 | |
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73 | /*Graphical Widgets */ |
74 | GtkWidget * ScrollWindow; |
75 | GtkListStore *ListStore; |
76 | GtkWidget *Hbox; |
77 | GtkWidget *TreeView; |
78 | GtkTreeSelection *SelectionTree; |
79 | |
80 | Tab * tab; /* tab that contains this plug-in*/ |
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81 | LttvHooks * event_hooks; |
82 | LttvHooks * hooks_trace_after; |
83 | LttvHooks * hooks_trace_before; |
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84 | TimeWindow time_window; |
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85 | LttvHooksById * event_by_id_hooks; |
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86 | GArray *interrupt_counters; |
87 | GArray *active_irq_entry ; |
88 | } InterruptEventData ; |
89 | |
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90 | |
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91 | /* Function prototypes */ |
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92 | |
93 | static gboolean interrupt_update_time_window(void * hook_data, void * call_data); |
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94 | static GtkWidget *interrupts(Tab *tab); |
95 | static InterruptEventData *system_info(Tab *tab); |
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96 | void interrupt_destructor(InterruptEventData *event_viewer_data); |
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97 | static void request_event(InterruptEventData *event_data ); |
98 | static guint64 get_interrupt_id(LttEvent *e); |
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99 | static gboolean trace_header(void *hook_data, void *call_data); |
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100 | static gboolean interrupt_display (void *hook_data, void *call_data); |
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101 | static void calcul_duration(LttTime time_exit, guint cpu_id, InterruptEventData *event_data); |
102 | static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters); |
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103 | static gboolean irq_entry_callback(void *hook_data, void *call_data); |
104 | static gboolean irq_exit_callback(void *hook_data, void *call_data); |
105 | |
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106 | /* Enumeration of the columns */ |
107 | enum{ |
108 | CPUID_COLUMN, |
109 | IRQ_ID_COLUMN, |
110 | FREQUENCY_COLUMN, |
111 | DURATION_COLUMN, |
112 | N_COLUMNS |
113 | }; |
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114 | |
115 | |
116 | |
117 | /** |
118 | * init function |
119 | * |
120 | * |
121 | * This is the entry point of the viewer. |
122 | * |
123 | */ |
124 | static void init() { |
125 | g_info("interrupts: init()"); |
126 | lttvwindow_register_constructor("interrupts", |
127 | "/", |
128 | "Insert Interrupts View", |
129 | hInterruptsInsert_xpm, |
130 | "Insert Interrupts View", |
131 | interrupts); |
132 | |
133 | } |
134 | |
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135 | |
5f5119ee |
136 | /** |
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137 | * Constructor hook |
5f5119ee |
138 | * |
5f5119ee |
139 | */ |
f2ec7aa9 |
140 | static GtkWidget *interrupts(Tab * tab) |
141 | { |
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142 | |
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143 | InterruptEventData* event_data = system_info(tab) ; |
144 | if(event_data) |
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145 | return event_data->Hbox; |
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146 | else |
147 | return NULL; |
148 | } |
149 | |
f2ec7aa9 |
150 | /** |
151 | * This function initializes the Event Viewer functionnality through the |
152 | * GTK API. |
153 | */ |
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154 | InterruptEventData *system_info(Tab *tab) |
155 | { |
156 | LttTime end; |
157 | GtkTreeViewColumn *column; |
158 | GtkCellRenderer *renderer; |
159 | InterruptEventData* event_viewer_data = g_new(InterruptEventData,1) ; |
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160 | |
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161 | |
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162 | event_viewer_data->tab = tab; |
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163 | |
164 | /*Get the current time frame from the main window */ |
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165 | event_viewer_data->time_window = lttvwindow_get_time_window(tab); |
166 | event_viewer_data->interrupt_counters = g_array_new(FALSE, FALSE, sizeof(Irq)); |
167 | event_viewer_data->active_irq_entry = g_array_new(FALSE, FALSE, sizeof(irq_entry)); |
f2ec7aa9 |
168 | /*Create tha main window for the viewer */ |
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169 | event_viewer_data->ScrollWindow = gtk_scrolled_window_new (NULL, NULL); |
170 | gtk_widget_show (event_viewer_data->ScrollWindow); |
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171 | gtk_scrolled_window_set_policy( |
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172 | GTK_SCROLLED_WINDOW(event_viewer_data->ScrollWindow), |
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173 | GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC/*GTK_POLICY_NEVER*/); |
174 | |
175 | /* Create a model for storing the data list */ |
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176 | event_viewer_data->ListStore = gtk_list_store_new ( |
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177 | N_COLUMNS, /* Total number of columns */ |
178 | G_TYPE_INT, /* CPUID */ |
179 | G_TYPE_INT, /* IRQ_ID */ |
180 | G_TYPE_INT, /* Frequency */ |
181 | G_TYPE_UINT64 /* Duration */ |
182 | ); |
183 | |
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184 | event_viewer_data->TreeView = gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->ListStore)); |
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185 | |
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186 | g_object_unref (G_OBJECT (event_viewer_data->ListStore)); |
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187 | |
188 | renderer = gtk_cell_renderer_text_new (); |
189 | column = gtk_tree_view_column_new_with_attributes ("CPUID", |
190 | renderer, |
191 | "text", CPUID_COLUMN, |
192 | NULL); |
193 | gtk_tree_view_column_set_alignment (column, 0.0); |
194 | gtk_tree_view_column_set_fixed_width (column, 45); |
b3e7b125 |
195 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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196 | |
197 | |
198 | renderer = gtk_cell_renderer_text_new (); |
199 | column = gtk_tree_view_column_new_with_attributes ("IrqId", |
200 | renderer, |
201 | "text", IRQ_ID_COLUMN, |
202 | NULL); |
203 | gtk_tree_view_column_set_alignment (column, 0.0); |
204 | gtk_tree_view_column_set_fixed_width (column, 220); |
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205 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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206 | |
207 | renderer = gtk_cell_renderer_text_new (); |
208 | column = gtk_tree_view_column_new_with_attributes ("Frequency", |
209 | renderer, |
210 | "text", FREQUENCY_COLUMN, |
211 | NULL); |
212 | gtk_tree_view_column_set_alignment (column, 1.0); |
213 | gtk_tree_view_column_set_fixed_width (column, 220); |
b3e7b125 |
214 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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215 | |
216 | renderer = gtk_cell_renderer_text_new (); |
217 | column = gtk_tree_view_column_new_with_attributes ("Duration (nsec)", |
218 | renderer, |
219 | "text", DURATION_COLUMN, |
220 | NULL); |
221 | gtk_tree_view_column_set_alignment (column, 0.0); |
222 | gtk_tree_view_column_set_fixed_width (column, 145); |
b3e7b125 |
223 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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224 | |
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225 | event_viewer_data->SelectionTree = gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->TreeView)); |
226 | gtk_tree_selection_set_mode (event_viewer_data->SelectionTree, GTK_SELECTION_SINGLE); |
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227 | |
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228 | gtk_container_add (GTK_CONTAINER (event_viewer_data->ScrollWindow), event_viewer_data->TreeView); |
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229 | |
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230 | event_viewer_data->Hbox = gtk_hbox_new(0, 0); |
231 | gtk_box_pack_start(GTK_BOX(event_viewer_data->Hbox), event_viewer_data->ScrollWindow, TRUE, TRUE, 0); |
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232 | |
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233 | gtk_widget_show(event_viewer_data->Hbox); |
234 | gtk_widget_show(event_viewer_data->TreeView); |
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235 | |
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236 | interrupt_data_list = g_slist_append(interrupt_data_list, event_viewer_data); |
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237 | /* Registration for time notification */ |
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238 | lttvwindow_register_time_window_notify(tab, |
239 | interrupt_update_time_window, |
240 | event_viewer_data); |
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241 | |
242 | |
243 | request_event(event_viewer_data ); |
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244 | return event_viewer_data; |
245 | } |
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246 | |
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247 | /** |
248 | * |
249 | * For each trace in the traceset, this function: |
250 | * - registers a callback function to each hook |
251 | * - calls lttv_trace_find_hook() registers a hook function to event_by_id_hooks |
252 | * - calls lttvwindow_events_request() to request data in a specific |
253 | * time interval to the main window |
254 | * |
255 | */ |
256 | static void request_event(InterruptEventData *event_data ) |
257 | { |
258 | guint i, k, l, nb_trace; |
259 | |
260 | LttvTraceHook *hook; |
261 | |
262 | guint ret; |
263 | |
264 | LttvTraceState *ts; |
265 | |
266 | GArray *hooks; |
267 | |
268 | EventsRequest *events_request; |
269 | |
270 | LttvTraceHookByFacility *thf; |
271 | |
272 | LttvTracesetContext *tsc = lttvwindow_get_traceset_context(event_data->tab); |
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273 | |
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274 | |
275 | /* Get the traceset */ |
276 | LttvTraceset *traceset = tsc->ts; |
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277 | |
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278 | nb_trace = lttv_traceset_number(traceset); |
279 | |
280 | /* There are many traces in a traceset. Iteration for each trace. */ |
281 | for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++) |
282 | { |
283 | events_request = g_new(EventsRequest, 1); |
284 | |
285 | hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); |
286 | |
287 | hooks = g_array_set_size(hooks, 2); |
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288 | |
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289 | event_data->hooks_trace_before = lttv_hooks_new(); |
290 | |
291 | /* Registers a hook function */ |
292 | lttv_hooks_add(event_data->hooks_trace_before, trace_header, event_data, LTTV_PRIO_DEFAULT); |
293 | |
294 | event_data->hooks_trace_after = lttv_hooks_new(); |
295 | /* Registers a hook function */ |
296 | lttv_hooks_add(event_data->hooks_trace_after, interrupt_display, event_data, LTTV_PRIO_DEFAULT); |
297 | /* Get a trace state */ |
298 | ts = (LttvTraceState *)tsc->traces[i]; |
299 | /* Create event_by_Id hooks */ |
300 | event_data->event_by_id_hooks = lttv_hooks_by_id_new(); |
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301 | |
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302 | /*Register event_by_id_hooks with a callback function*/ |
303 | ret = lttv_trace_find_hook(ts->parent.t, |
304 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
305 | LTT_FIELD_IRQ_ID, 0, 0, |
306 | irq_entry_callback, |
307 | events_request, |
308 | &g_array_index(hooks, LttvTraceHook, 0)); |
309 | |
310 | ret = lttv_trace_find_hook(ts->parent.t, |
311 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
312 | LTT_FIELD_IRQ_ID, 0, 0, |
313 | irq_exit_callback, |
314 | events_request, |
315 | &g_array_index(hooks, LttvTraceHook, 1)); |
316 | |
317 | g_assert(!ret); |
318 | /*iterate through the facility list*/ |
319 | for(k = 0 ; k < hooks->len; k++) |
320 | { |
321 | hook = &g_array_index(hooks, LttvTraceHook, k); |
322 | for(l=0; l<hook->fac_list->len; l++) |
323 | { |
324 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
325 | lttv_hooks_add(lttv_hooks_by_id_find(event_data->event_by_id_hooks, thf->id), |
326 | thf->h, |
327 | event_data, |
328 | LTTV_PRIO_DEFAULT); |
329 | |
330 | } |
331 | } |
332 | /* Initalize the EventsRequest structure */ |
333 | events_request->owner = event_data; |
334 | events_request->viewer_data = event_data; |
335 | events_request->servicing = FALSE; |
336 | events_request->start_time = event_data->time_window.start_time; |
337 | events_request->start_position = NULL; |
338 | events_request->stop_flag = FALSE; |
339 | events_request->end_time = event_data->time_window.end_time; |
340 | events_request->num_events = G_MAXUINT; |
341 | events_request->end_position = NULL; |
342 | events_request->trace = i; |
343 | |
344 | events_request->hooks = hooks; |
345 | |
346 | events_request->before_chunk_traceset = NULL; |
347 | events_request->before_chunk_trace = event_data->hooks_trace_before; |
348 | events_request->before_chunk_tracefile= NULL; |
349 | events_request->event = NULL; |
350 | events_request->event_by_id = event_data->event_by_id_hooks; |
351 | events_request->after_chunk_tracefile = NULL; |
352 | events_request->after_chunk_trace = NULL; |
353 | events_request->after_chunk_traceset = NULL; |
354 | events_request->before_request = NULL; |
355 | events_request->after_request = event_data->hooks_trace_after; |
356 | |
357 | lttvwindow_events_request(event_data->tab, events_request); |
358 | } |
359 | |
b3e7b125 |
360 | } |
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361 | |
f2ec7aa9 |
362 | /** |
363 | * This function is called whenever an irq_entry event occurs. |
364 | * |
365 | */ |
366 | static gboolean irq_entry_callback(void *hook_data, void *call_data) |
367 | { |
368 | |
b3e7b125 |
369 | LttTime event_time; |
b3e7b125 |
370 | unsigned cpu_id; |
371 | irq_entry entry; |
b3e7b125 |
372 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
373 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
f2ec7aa9 |
374 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
375 | GArray* active_irq_entry = event_data->active_irq_entry; |
376 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
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377 | event_time = ltt_event_time(e); |
b3e7b125 |
378 | cpu_id = ltt_event_cpu_id(e); |
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379 | |
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380 | if ((ltt_time_compare(event_time,event_data->time_window.start_time) == TRUE) && |
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381 | (ltt_time_compare(event_data->time_window.end_time,event_time) == TRUE)) |
382 | { |
383 | entry.id =get_interrupt_id(e); |
384 | entry.cpu_id = cpu_id; |
385 | entry.event_time = event_time; |
386 | g_array_append_val (active_irq_entry, entry); |
387 | } |
388 | return FALSE; |
5f5119ee |
389 | } |
390 | |
f2ec7aa9 |
391 | /** |
392 | * This function gets the id of the interrupt. The id is stored in a dynamic structure. |
393 | * Refer to the print.c file for howto extract data from a dynamic structure. |
394 | */ |
395 | static guint64 get_interrupt_id(LttEvent *e) |
5f5119ee |
396 | { |
f2ec7aa9 |
397 | guint i, num_fields; |
398 | LttEventType *event_type; |
399 | LttField *element; |
400 | LttField *field; |
401 | guint64 irq_id; |
402 | event_type = ltt_event_eventtype(e); |
403 | num_fields = ltt_eventtype_num_fields(event_type); |
404 | for(i = 0 ; i < num_fields-1 ; i++) |
405 | { |
406 | field = ltt_eventtype_field(event_type, i); |
407 | irq_id = ltt_event_get_long_unsigned(e,field); |
5f5119ee |
408 | } |
409 | return irq_id; |
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410 | |
f2ec7aa9 |
411 | } |
412 | /** |
413 | * This function is called whenever an irq_exit event occurs. |
414 | * |
415 | */ |
416 | gboolean irq_exit_callback(void *hook_data, void *call_data) |
417 | { |
418 | LttTime event_time; |
419 | unsigned cpu_id; |
5f5119ee |
420 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
f2ec7aa9 |
421 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
422 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
423 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
424 | LttEventType *type = ltt_event_eventtype(e); |
425 | event_time = ltt_event_time(e); |
426 | cpu_id = ltt_event_cpu_id(e); |
427 | if ((ltt_time_compare(event_time,event_data->time_window.start_time) == TRUE) && |
428 | (ltt_time_compare(event_data->time_window.end_time,event_time) == TRUE)) |
429 | { |
430 | calcul_duration( event_time, cpu_id, event_data); |
431 | |
432 | } |
433 | return FALSE; |
5f5119ee |
434 | } |
435 | |
f2ec7aa9 |
436 | /** |
437 | * This function calculates the duration of an interrupt. |
438 | * |
439 | */ |
440 | static void calcul_duration(LttTime time_exit, guint cpu_id,InterruptEventData *event_data){ |
5f5119ee |
441 | |
f2ec7aa9 |
442 | gint i, irq_id; |
443 | irq_entry *element; |
444 | LttTime duration; |
445 | GArray *interrupt_counters = event_data->interrupt_counters; |
446 | GArray *active_irq_entry = event_data->active_irq_entry; |
447 | for(i = 0; i < active_irq_entry->len; i++){ |
448 | element = &g_array_index(active_irq_entry,irq_entry,i); |
449 | if(element->cpu_id == cpu_id){ |
450 | sum_interrupt_data(element,time_exit, interrupt_counters); |
451 | g_array_remove_index(active_irq_entry, i); |
452 | break; |
453 | } |
454 | } |
5f5119ee |
455 | } |
f2ec7aa9 |
456 | /** |
457 | * This function calculates the total duration of an interrupt. |
458 | * |
459 | */ |
5f5119ee |
460 | static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters){ |
461 | Irq irq; |
462 | Irq *element; |
463 | guint i; |
464 | LttTime duration; |
465 | gboolean notFound = FALSE; |
466 | memset ((void*)&irq, 0,sizeof(Irq)); |
467 | |
f2ec7aa9 |
468 | |
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469 | if(interrupt_counters->len == NO_ITEMS){ |
470 | irq.cpu_id = e->cpu_id; |
471 | irq.id = e->id; |
472 | irq.frequency++; |
473 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
474 | g_array_append_val (interrupt_counters, irq); |
475 | } |
476 | else{ |
477 | for(i = 0; i < interrupt_counters->len; i++){ |
478 | element = &g_array_index(interrupt_counters,Irq,i); |
479 | if(element->id == e->id){ |
480 | notFound = TRUE; |
481 | duration = ltt_time_sub(time_exit, e->event_time); |
482 | element->total_duration = ltt_time_add(element->total_duration, duration); |
483 | element->frequency++; |
484 | } |
485 | } |
486 | if(!notFound){ |
487 | irq.cpu_id = e->cpu_id; |
488 | irq.id = e->id; |
489 | irq.frequency++; |
490 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
491 | g_array_append_val (interrupt_counters, irq); |
492 | } |
493 | } |
494 | } |
f2ec7aa9 |
495 | /** |
496 | * This function displays the result on the viewer |
497 | * |
498 | */ |
499 | static gboolean interrupt_display(void *hook_data, void *call_data){ |
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500 | |
f2ec7aa9 |
501 | gint i; |
502 | Irq element; |
503 | LttTime average_duration; |
504 | GtkTreeIter iter; |
505 | guint64 real_data; |
506 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
507 | GArray *interrupt_counters = event_data->interrupt_counters; |
508 | gtk_list_store_clear(event_data->ListStore); |
509 | for(i = 0; i < interrupt_counters->len; i++){ |
510 | element = g_array_index(interrupt_counters,Irq,i); |
511 | real_data = element.total_duration.tv_sec; |
512 | real_data *= NANOSECONDS_PER_SECOND; |
513 | real_data += element.total_duration.tv_nsec; |
514 | gtk_list_store_append (event_data->ListStore, &iter); |
515 | gtk_list_store_set (event_data->ListStore, &iter, |
516 | CPUID_COLUMN, element.cpu_id, |
517 | IRQ_ID_COLUMN, element.id, |
518 | FREQUENCY_COLUMN, element.frequency, |
519 | DURATION_COLUMN, real_data, |
520 | -1); |
521 | } |
522 | if(event_data->interrupt_counters->len) |
523 | g_array_remove_range (event_data->interrupt_counters,0,event_data->interrupt_counters->len); |
524 | |
525 | if(event_data->active_irq_entry->len) |
526 | g_array_remove_range (event_data->active_irq_entry,0,event_data->active_irq_entry->len); |
527 | return FALSE; |
5f5119ee |
528 | } |
f2ec7aa9 |
529 | /* |
530 | * This function is called by the main window |
531 | * when the time interval needs to be updated. |
532 | **/ |
533 | gboolean interrupt_update_time_window(void * hook_data, void * call_data) |
534 | { |
5f5119ee |
535 | InterruptEventData *event_data = (InterruptEventData *) hook_data; |
536 | const TimeWindowNotifyData *time_window_nofify_data = ((const TimeWindowNotifyData *)call_data); |
537 | event_data->time_window = *time_window_nofify_data->new_time_window; |
538 | g_info("interrupts: interrupt_update_time_window()\n"); |
539 | Tab *tab = event_data->tab; |
540 | lttvwindow_events_request_remove_all(tab, event_data); |
f2ec7aa9 |
541 | request_event(event_data ); |
542 | return FALSE; |
5f5119ee |
543 | } |
544 | |
f2ec7aa9 |
545 | |
546 | gboolean trace_header(void *hook_data, void *call_data) |
547 | { |
548 | |
549 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
550 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
551 | printf("trace_header\n" ); |
552 | LttEvent *e; |
553 | LttTime event_time; |
554 | return FALSE; |
5f5119ee |
555 | } |
556 | |
f2ec7aa9 |
557 | void interrupt_destroy_walk(gpointer data, gpointer user_data) |
558 | { |
5f5119ee |
559 | g_info("interrupt_destroy_walk"); |
560 | interrupt_destructor((InterruptEventData*)data); |
561 | |
562 | } |
563 | |
f2ec7aa9 |
564 | void interrupt_destructor(InterruptEventData *event_viewer_data) |
565 | { |
566 | /* May already been done by GTK window closing */ |
567 | g_info("enter interrupt_destructor \n"); |
568 | if(GTK_IS_WIDGET(event_viewer_data->Hbox)) |
569 | { |
570 | gtk_widget_destroy(event_viewer_data->Hbox); |
571 | } |
572 | } |
573 | |
5f5119ee |
574 | /** |
575 | * plugin's destroy function |
576 | * |
577 | * This function releases the memory reserved by the module and unregisters |
578 | * everything that has been registered in the gtkTraceSet API. |
579 | */ |
580 | static void destroy() { |
581 | g_info("Destroy interrupts"); |
582 | g_slist_foreach(interrupt_data_list, interrupt_destroy_walk, NULL ); |
583 | g_slist_free(interrupt_data_list); |
584 | lttvwindow_unregister_constructor(interrupts); |
585 | |
586 | } |
587 | |
588 | LTTV_MODULE("interrupts", "interrupts info view", \ |
589 | "Graphical module to display interrupts performance", \ |
590 | init, destroy, "lttvwindow") |