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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | /* * Copyright 1996 The Australian National University. * Copyright 1996 Fujitsu Laboratories Limited * * This software may be distributed under the terms of the Gnu * Public License version 2 or later */ /* * Initialize the AP1000 hardware: BIF, MSC+, MC+, etc. */ #include <linux/sched.h> #include <linux/mm.h> #include <linux/malloc.h> #include <linux/mpp.h> #include <asm/irq.h> #include <asm/ap1000/apservice.h> #include <asm/ap1000/apreg.h> #define APLOG 0 /* these make using CellOS code easier */ int cap_nopt0; int cap_cid0; int cap_ncel0; unsigned _cid, _ncel, _ncelx, _ncely, _cidx, _cidy; /* yuck - needed for sun4c! */ static unsigned char dummy; unsigned char *auxio_register = &dummy; extern struct cap_init cap_init; static void unexpected_irq(int irq, void *dev_id, struct pt_regs *regs) { ap_panic("** unexpected interrupt %d **\n",irq); } static void ap_other_irqs(void) { request_irq(3, unexpected_irq, SA_INTERRUPT, "unused", 0); request_irq(5, unexpected_irq, SA_INTERRUPT, "unused", 0); request_irq(12, unexpected_irq, SA_INTERRUPT, "unused", 0); request_irq(15, unexpected_irq, SA_INTERRUPT, "unused", 0); } int ap_memory_size(void) { if ((MSC_IN(MSC_SIMMCHK) & MSC_SIMMCHK_MASK) == 0) { return 16*1024*1024; } return 64*1024*1024; } static void show_registers(void) { extern struct pt_regs *bif_pt_regs; if (bif_pt_regs) show_regs(bif_pt_regs); else printk("unable to show registers\n"); } static void check_alive(void) { printk("Cell %d is alive\n",mpp_cid()); } static void show_task(struct task_struct *t) { printk("cell=%3d uid=%5d pid=%5d utime=%3d stime=%3d etime=%3d name=%s\n", mpp_cid(), t->uid, (int)t->pid, (int)t->utime, (int)t->stime, (jiffies - (int)t->start_time) / 100, t->comm); } static void show_ptasks(void) { extern struct task_struct *task[]; struct task_struct *p; int i; int count=0; read_lock(&tasklist_lock); for_each_task(p) { struct task_struct **tp = p->tarray_ptr; if(tp >= &task[MPP_TASK_BASE]) { show_task(p); count++; } } read_unlock(&tasklist_lock); if (count == 0) printk("no parallel tasks on cell %d\n",mpp_cid()); } static void show_utasks(void) { extern struct task_struct *task[]; struct task_struct *p; int i; int count=0; read_lock(&tasklist_lock); for_each_task(p) { if(p->uid > 1) { show_task(task[i]); count++; } } read_unlock(&tasklist_lock); if (count == 0) printk("no user tasks on cell %d\n",mpp_cid()); } static void show_otasks(void) { extern struct task_struct *task[]; struct task_struct *p; int i; int count=0; extern int ap_current_uid; read_lock(&tasklist_lock); for_each_task(p) { if(p->uid == ap_current_uid) { show_task(task[i]); count++; } } read_unlock(&tasklist_lock); if (count == 0) printk("no tasks on cell %d\n",mpp_cid()); } void do_panic(void) { int *x = 0; *x = 1; /* uggh */ } void mpp_hw_init(void) { extern void show_state(void); extern void breakpoint(void); extern void ctrl_alt_del(void); extern void mac_print_state(void); extern void show_debug_keys(void); bif_add_debug_key('c',check_alive,"check if a cell is alive"); bif_add_debug_key('k',show_debug_keys,"show the kernel debug keys"); bif_add_debug_key('p',show_registers,"show register info"); bif_add_debug_key('p',show_registers,"show register info"); bif_add_debug_key('m',show_mem,"detailed memory stats"); bif_add_debug_key('s',show_state,"detailed process stats"); bif_add_debug_key('D',ap_start_debugger,"launch the kernel debugger"); bif_add_debug_key('i',breakpoint,"send a breakpoint"); bif_add_debug_key('r',ctrl_alt_del,"run shutdown (doesn't work)"); bif_add_debug_key('P',show_ptasks,"show running parallel tasks"); bif_add_debug_key('U',show_utasks,"show all user tasks"); bif_add_debug_key('O',show_otasks,"show own user tasks"); bif_add_debug_key('^',do_panic,"panic :-)"); cap_cid0 = BIF_IN(BIF_CIDR1); cap_ncel0 = cap_init.numcells; _cid = cap_cid0; _ncel = cap_ncel0; _ncelx = _ncel<8?_ncel:8; _ncely = ((_ncel-1) / _ncelx) + 1; _cidx = _cid % _ncelx; _cidy = _cid / _ncelx; ap_bif_init(); ap_msc_init(); ap_tnet_init(); ap_profile_init(); ap_other_irqs(); ap_ringbuf_init(); #if APLOG ap_log(NULL,-1); #endif } |