patch-2.1.23 linux/arch/sparc/ap1000/hw.c

• Lines: 186
• Date: Sun Jan 26 12:07:06 1997
• Orig file: v2.1.22/linux/arch/sparc/ap1000/hw.c
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v2.1.22/linux/arch/sparc/ap1000/hw.c linux/arch/sparc/ap1000/hw.c
@@ -0,0 +1,185 @@
+  /*
+   * 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[];
+	int i;
+	int count=0;
+
+	for (i=MPP_TASK_BASE;i<NR_TASKS;i++)
+		if (task[i]) {
+			show_task(task[i]);
+			count++;
+		}
+	if (count == 0)
+		printk("no parallel tasks on cell %d\n",mpp_cid());
+}
+
+static void show_utasks(void)
+{
+	extern struct task_struct *task[];
+	int i;
+	int count=0;
+
+	for (i=0;i<NR_TASKS;i++)
+		if (task[i] && task[i]->uid > 1)  {
+			show_task(task[i]);
+			count++;
+		}
+
+	if (count == 0)
+		printk("no user tasks on cell %d\n",mpp_cid());
+}
+
+
+static void show_otasks(void)
+{
+	extern struct task_struct *task[];
+	int i;
+	int count=0;
+	extern int ap_current_uid;
+
+	for (i=0;i<NR_TASKS;i++)
+		if (task[i] && task[i]->uid == ap_current_uid)  {
+			show_task(task[i]);
+			count++;
+		}
+
+	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
+}