Removes resource.c/h
[akaros.git] / kern / src / manager.c
1 /*
2  * Copyright (c) 2009 The Regents of the University of California
3  * Barret Rhoden <brho@cs.berkeley.edu>
4  * See LICENSE for details.
5  */
6
7
8 #ifdef __SHARC__
9 #pragma nosharc
10 #endif
11
12 #include <ros/common.h>
13 #include <smp.h>
14 #include <arch/init.h>
15 #include <mm.h>
16 #include <elf.h>
17 #include <frontend.h>
18
19 #include <kmalloc.h>
20 #include <assert.h>
21 #include <manager.h>
22 #include <process.h>
23 #include <schedule.h>
24 #include <syscall.h>
25 #include <testing.h>
26 #include <kfs.h>
27 #include <stdio.h>
28 #include <time.h>
29 #include <monitor.h>
30 #include <colored_caches.h>
31 #include <string.h>
32 #include <pmap.h>
33 #include <arch/console.h>
34 #include <ros/time.h>
35 #include <ros/arch/membar.h>
36
37 /*
38  * Currently, if you leave this function by way of proc_run (process_workqueue
39  * that proc_runs), you will never come back to where you left off, and the
40  * function will start from the top.  Hence the hack 'progress'.
41  */
42 void manager(void)
43 {
44         #ifndef DEVELOPER_NAME
45                 #define DEVELOPER_NAME brho
46         #endif
47
48         // LoL
49         #define PASTE(s1,s2) s1 ## s2
50         #define MANAGER_FUNC(dev) PASTE(manager_,dev)
51
52         void MANAGER_FUNC(DEVELOPER_NAME)(void);
53         MANAGER_FUNC(DEVELOPER_NAME)();
54 }
55
56 char *p_argv[] = {0, 0, 0};
57 char *p_envp[] = {"LD_LIBRARY_PATH=/lib", 0};
58 /* Helper macro for quickly running a process.  Pass it a string, *file, and a
59  * *proc. */
60 #define quick_proc_run(x, p, f)                                                  \
61         (f) = do_file_open((x), 0, 0);                                               \
62         assert((f));                                                                 \
63         p_argv[0] = file_name((f));                                                  \
64         (p) = proc_create((f), p_argv, p_envp);                                      \
65         kref_put(&(f)->f_kref);                                                      \
66         spin_lock(&(p)->proc_lock);                                                  \
67         __proc_set_state((p), PROC_RUNNABLE_S);                                      \
68         spin_unlock(&(p)->proc_lock);                                                \
69         proc_run_s((p));                                                             \
70         proc_decref((p));
71
72 #define quick_proc_create(x, p, f)                                               \
73         (f) = do_file_open((x), 0, 0);                                               \
74         assert((f));                                                                 \
75         p_argv[0] = file_name((f));                                                  \
76         (p) = proc_create((f), p_argv, p_envp);                                      \
77         kref_put(&(f)->f_kref);                                                      \
78         spin_lock(&(p)->proc_lock);                                                  \
79         __proc_set_state((p), PROC_RUNNABLE_S);                                      \
80         spin_unlock(&(p)->proc_lock);
81
82 #define quick_proc_color_run(x, p, c, f)                                         \
83         (f) = do_file_open((x), 0, 0);                                               \
84         assert((f));                                                                 \
85         p_argv[0] = file_name((f));                                                  \
86         (p) = proc_create((f), p_argv, p_envp);                                      \
87         kref_put(&(f)->f_kref);                                                      \
88         spin_lock(&(p)->proc_lock);                                                  \
89         __proc_set_state((p), PROC_RUNNABLE_S);                                      \
90         spin_unlock(&(p)->proc_lock);                                                \
91         p->cache_colors_map = cache_colors_map_alloc();                              \
92         for (int i = 0; i < (c); i++)                                                \
93                 cache_color_alloc(llc_cache, p->cache_colors_map);                       \
94         proc_run_s((p));                                                             \
95         proc_decref((p));
96
97 #define quick_proc_color_create(x, p, c, f)                                      \
98         (f) = do_file_open((x), 0, 0);                                               \
99         assert((f));                                                                 \
100         p_argv[0] = file_name((f));                                                  \
101         (p) = proc_create((f), p_argv, p_envp);                                      \
102         kref_put(&(f)->f_kref);                                                      \
103         spin_lock(&(p)->proc_lock);                                                  \
104         __proc_set_state((p), PROC_RUNNABLE_S);                                      \
105         spin_unlock(&(p)->proc_lock);                                                \
106         p->cache_colors_map = cache_colors_map_alloc();                              \
107         for (int i = 0; i < (c); i++)                                                \
108                 cache_color_alloc(llc_cache, p->cache_colors_map);
109
110 void manager_brho(void)
111 {
112         static bool first = TRUE;
113         struct per_cpu_info *pcpui = &per_cpu_info[core_id()];
114
115         if (first) {    
116                 printk("*** Hit shift-g to get into the monitor. ***\n");
117                 first = FALSE;
118         }
119         while (1) {
120                 enable_irq();
121                 /* one time keyboard / serial check for some magic, then monitor */
122                 if (cons_getc() == 'G') {
123                         printk("Heard the call of the giraffe!\n");
124                         monitor(0);
125                 }
126                 process_routine_kmsg(0);
127                 schedule();
128                 /* would like to idle here, but without reset stacks, people will run
129                  * off the kstack.  so just idle if we have an owning proc (which we
130                  * should then 'restart'). */
131                 if (pcpui->owning_proc)
132                         smp_idle();
133         }
134         /* whatever we do in the manager, keep in mind that we need to not do
135          * anything too soon (like make processes), since we'll drop in here during
136          * boot if the boot sequence required any I/O (like EXT2), and we need to
137          * PRKM() */
138         assert(0);
139
140 #if 0 /* ancient tests below: (keeping around til we ditch the manager) */
141         // for testing taking cores, check in case 1 for usage
142         uint32_t corelist[MAX_NUM_CPUS];
143         uint32_t num = 3;
144         struct file *temp_f;
145         static struct proc *p;
146
147         static uint8_t RACY progress = 0;       /* this will wrap around. */
148         switch (progress++) {
149                 case 0:
150                         printk("Top of the manager to ya!\n");
151                         /* 124 is half of the available boxboro colors (with the kernel
152                          * getting 8) */
153                         //quick_proc_color_run("msr_dumb_while", p, 124, temp_f);
154                         quick_proc_run("/bin/hello", p, temp_f);
155                         #if 0
156                         // this is how you can transition to a parallel process manually
157                         // make sure you don't proc run first
158                         __proc_set_state(p, PROC_RUNNING_S);
159                         __proc_set_state(p, PROC_RUNNABLE_M);
160                         p->resources[RES_CORES].amt_wanted = 5;
161                         spin_unlock(&p->proc_lock);
162                         core_request(p);
163                         panic("This is okay");
164                         #endif
165                         break;
166                 case 1:
167                         #if 0
168                         udelay(10000000);
169                         // this is a ghetto way to test restarting an _M
170                                 printk("\nattempting to ghetto preempt...\n");
171                                 spin_lock(&p->proc_lock);
172                                 proc_take_allcores(p, __death);
173                                 __proc_set_state(p, PROC_RUNNABLE_M);
174                                 spin_unlock(&p->proc_lock);
175                                 udelay(5000000);
176                                 printk("\nattempting to restart...\n");
177                                 core_request(p); // proc still wants the cores
178                         panic("This is okay");
179                         // this tests taking some cores, and later killing an _M
180                                 printk("taking 3 cores from p\n");
181                                 for (int i = 0; i < num; i++)
182                                         corelist[i] = 7-i; // 7, 6, and 5
183                                 spin_lock(&p->proc_lock);
184                                 proc_take_cores(p, corelist, &num, __death);
185                                 spin_unlock(&p->proc_lock);
186                                 udelay(5000000);
187                                 printk("Killing p\n");
188                                 proc_destroy(p);
189                                 printk("Killed p\n");
190                         panic("This is okay");
191
192                         envs[0] = kfs_proc_create(kfs_lookup_path("roslib_hello"));
193                         __proc_set_state(envs[0], PROC_RUNNABLE_S);
194                         proc_run(envs[0]);
195                         warn("DEPRECATED");
196                         break;
197                         #endif
198                 case 2:
199                         /*
200                         test_smp_call_functions();
201                         test_checklists();
202                         test_barrier();
203                         test_print_info();
204                         test_lapic_status_bit();
205                         test_ipi_sending();
206                         test_pit();
207                         */
208                 default:
209                         printd("Manager Progress: %d\n", progress);
210                         // delay if you want to test rescheduling an MCP that yielded
211                         //udelay(15000000);
212                         schedule();
213         }
214         panic("If you see me, then you probably screwed up");
215         monitor(0);
216
217         /*
218         printk("Servicing syscalls from Core 0:\n\n");
219         while (1) {
220                 process_generic_syscalls(&envs[0], 1);
221                 cpu_relax();
222         }
223         */
224         return;
225 #endif
226 }
227
228 void manager_klueska()
229 {
230         static struct proc *envs[256];
231         static volatile uint8_t progress = 0;
232
233         if (progress == 0) {
234                 progress++;
235                 panic("what do you want to do?");
236                 //envs[0] = kfs_proc_create(kfs_lookup_path("fillmeup"));
237                 __proc_set_state(envs[0], PROC_RUNNABLE_S);
238                 proc_run_s(envs[0]);
239                 warn("DEPRECATED");
240         }
241         schedule();
242
243         panic("DON'T PANIC");
244 }
245
246 void manager_waterman()
247 {
248         schedule();
249         monitor(0);
250         assert(0);
251 }
252
253 void manager_yuzhu()
254 {
255         
256         static uint8_t RACY progress = 0;
257         static struct proc *p;
258
259         // for testing taking cores, check in case 1 for usage
260         uint32_t corelist[MAX_NUM_CPUS];
261         uint32_t num = 3;
262
263         //create_server(init_num_cores, loop);
264
265         monitor(0);
266
267         // quick_proc_run("hello", p);
268
269 }
270
271 #ifdef __sparc_v8__
272
273 static char*
274 itoa(int num, char* buf0, size_t base)
275 {
276         if(base > 16)
277                 return NULL;
278
279         char* buf = buf0;
280         int len = 0, i;
281
282         if(num < 0)
283         {
284                 *buf++ = '-';
285                 num = -num;
286         }
287
288         do {
289                 buf[len++] = "0123456789abcdef"[num%base];
290                 num /= base;
291         } while(num);
292
293         for(i = 0; i < len/2; i++)
294         {
295                 char temp = buf[i];
296                 buf[i] = buf[len-i-1];
297                 buf[len-i-1] = temp;
298         }
299         buf[len] = 0;
300
301         return buf0;
302 }
303
304 void gsf_set_frame_cycles(int cycles)
305 {
306         store_alternate(26*4,2,cycles);
307 }
308
309 void gsf_set_partition_credits(int partition, int credits)
310 {
311         store_alternate((32+partition)*4,2,credits);
312 }
313
314 void gsf_set_core_partition(int core, int partition)
315 {
316         store_alternate((64+core)*4,2,partition);
317 }
318
319 #endif
320