* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
-#include <linux/config.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/cpu.h>
-
+#include <asm/param.h>
#include <asm/cache.h>
#include <asm/hardware.h> /* for register_parisc_driver() stuff */
#include <asm/processor.h>
struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+extern int update_cr16_clocksource(void); /* from time.c */
+
/*
** PARISC CPU driver - claim "device" and initialize CPU data structures.
**
** will call register_parisc_driver(&cpu_driver) before calling do_inventory().
**
** The goal of consolidating CPU initialization into one place is
-** to make sure all CPU's get initialized the same way.
+** to make sure all CPUs get initialized the same way.
** The code path not shared is how PDC hands control of the CPU to the OS.
** The initialization of OS data structures is the same (done below).
*/
* (return 1). If so, initialize the chip and tell other partners in crime
* they have work to do.
*/
-static int __init processor_probe(struct parisc_device *dev)
+static int __cpuinit processor_probe(struct parisc_device *dev)
{
unsigned long txn_addr;
unsigned long cpuid;
cpuid = boot_cpu_data.cpu_count;
txn_addr = dev->hpa.start; /* for legacy PDC */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
if (is_pdc_pat()) {
ulong status;
unsigned long bytecnt;
p = &cpu_data[cpuid];
boot_cpu_data.cpu_count++;
- /* initialize counters */
- memset(p, 0, sizeof(struct cpuinfo_parisc));
+ /* initialize counters - CPU 0 gets it_value set in time_init() */
+ if (cpuid)
+ memset(p, 0, sizeof(struct cpuinfo_parisc));
p->loops_per_jiffy = loops_per_jiffy;
p->dev = dev; /* Save IODC data in case we need it */
p->cpuid = cpuid; /* save CPU id */
p->txn_addr = txn_addr; /* save CPU IRQ address */
#ifdef CONFIG_SMP
- spin_lock_init(&p->lock);
-
/*
** FIXME: review if any other initialization is clobbered
** for boot_cpu by the above memset().
#endif
/*
- ** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
+ ** CONFIG_SMP: init_smp_config() will attempt to get CPUs into
** OS control. RENDEZVOUS is the default state - see mem_set above.
** p->state = STATE_RENDEZVOUS;
*/
}
#endif
+ /* If we've registered more than one cpu,
+ * we'll use the jiffies clocksource since cr16
+ * is not synchronized between CPUs.
+ */
+ update_cr16_clocksource();
+
return 0;
}
} else {
printk(KERN_WARNING "WARNING: No FP CoProcessor?!"
" (coproc_cfg.ccr_functional == 0x%lx, expected 0xc0)\n"
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
"Halting Machine - FP required\n"
#endif
, coproc_cfg.ccr_functional);
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
mdelay(100); /* previous chars get pushed to console */
panic("FP CoProc not reported");
#endif
}
/*
- * Display cpu info for all cpu's.
+ * Display CPU info for all CPUs.
*/
int
show_cpuinfo (struct seq_file *m, void *v)
#ifdef CONFIG_SMP
if (0 == cpu_data[n].hpa)
continue;
-#ifdef ENTRY_SYS_CPUS
-#error iCOD support wants to show CPU state here
-#endif
#endif
seq_printf(m, "processor\t: %d\n"
"cpu family\t: PA-RISC %s\n",
return 0;
}
-static struct parisc_device_id processor_tbl[] __read_mostly = {
+static const struct parisc_device_id processor_tbl[] = {
{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
{ 0, }
};
-static struct parisc_driver cpu_driver __read_mostly = {
+static struct parisc_driver cpu_driver = {
.name = "CPU",
.id_table = processor_tbl,
.probe = processor_probe
};
/**
- * processor_init - Processor initalization procedure.
+ * processor_init - Processor initialization procedure.
*
* Register this driver.
*/