* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/config.h>
+
+#undef DEBUG
+
#include <linux/module.h>
#include <linux/string.h>
#include <linux/sched.h>
#include <linux/reboot.h>
#include <linux/delay.h>
#include <linux/initrd.h>
+#include <linux/platform_device.h>
#include <linux/ide.h>
#include <linux/seq_file.h>
#include <linux/ioport.h>
#include <linux/console.h>
#include <linux/utsname.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
#include <linux/root_dev.h>
#include <linux/notifier.h>
#include <linux/cpu.h>
#include <asm/time.h>
#include <asm/cputable.h>
#include <asm/sections.h>
+#include <asm/firmware.h>
#include <asm/btext.h>
#include <asm/nvram.h>
#include <asm/setup.h>
#include "setup.h"
-#undef DEBUG
-
#ifdef DEBUG
#include <asm/udbg.h>
#define DBG(fmt...) udbg_printf(fmt)
#define DBG(fmt...)
#endif
-#ifdef CONFIG_PPC_MULTIPLATFORM
-int _machine = 0;
-EXPORT_SYMBOL(_machine);
-#endif
+/* The main machine-dep calls structure
+ */
+struct machdep_calls ppc_md;
+EXPORT_SYMBOL(ppc_md);
+struct machdep_calls *machine_id;
+EXPORT_SYMBOL(machine_id);
unsigned long klimit = (unsigned long) _end;
#if defined(CONFIG_SMP) && defined(CONFIG_PPC32)
unsigned long bogosum = 0;
int i;
- for (i = 0; i < NR_CPUS; ++i)
- if (cpu_online(i))
- bogosum += loops_per_jiffy;
+ for_each_online_cpu(i)
+ bogosum += loops_per_jiffy;
seq_printf(m, "total bogomips\t: %lu.%02lu\n",
bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
#endif /* CONFIG_SMP && CONFIG_PPC32 */
seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
-
+ if (ppc_md.name)
+ seq_printf(m, "platform\t: %s\n", ppc_md.name);
if (ppc_md.show_cpuinfo != NULL)
ppc_md.show_cpuinfo(m);
void __init check_for_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
- unsigned long *prop;
+ const unsigned int *prop;
+ int len;
DBG(" -> check_for_initrd()\n");
if (of_chosen) {
- prop = (unsigned long *)get_property(of_chosen,
- "linux,initrd-start", NULL);
+ prop = get_property(of_chosen, "linux,initrd-start", &len);
if (prop != NULL) {
- initrd_start = (unsigned long)__va(*prop);
- prop = (unsigned long *)get_property(of_chosen,
- "linux,initrd-end", NULL);
+ initrd_start = (unsigned long)
+ __va(of_read_ulong(prop, len / 4));
+ prop = get_property(of_chosen,
+ "linux,initrd-end", &len);
if (prop != NULL) {
- initrd_end = (unsigned long)__va(*prop);
+ initrd_end = (unsigned long)
+ __va(of_read_ulong(prop, len / 4));
initrd_below_start_ok = 1;
} else
initrd_start = 0;
* must be called before using this.
*
* While we're here, we may as well set the "physical" cpu ids in the paca.
+ *
+ * NOTE: This must match the parsing done in early_init_dt_scan_cpus.
*/
void __init smp_setup_cpu_maps(void)
{
struct device_node *dn = NULL;
int cpu = 0;
- int swap_cpuid = 0;
while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) {
- int *intserv;
+ const int *intserv;
int j, len = sizeof(u32), nthreads = 1;
- intserv = (int *)get_property(dn, "ibm,ppc-interrupt-server#s",
- &len);
+ intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len);
if (intserv)
nthreads = len / sizeof(int);
else {
- intserv = (int *) get_property(dn, "reg", NULL);
+ intserv = get_property(dn, "reg", NULL);
if (!intserv)
intserv = &cpu; /* assume logical == phys */
}
for (j = 0; j < nthreads && cpu < NR_CPUS; j++) {
cpu_set(cpu, cpu_present_map);
set_hard_smp_processor_id(cpu, intserv[j]);
-
- if (intserv[j] == boot_cpuid_phys)
- swap_cpuid = cpu;
cpu_set(cpu, cpu_possible_map);
cpu++;
}
}
- /* Swap CPU id 0 with boot_cpuid_phys, so we can always assume that
- * boot cpu is logical 0.
- */
- if (boot_cpuid_phys != get_hard_smp_processor_id(0)) {
- u32 tmp;
- tmp = get_hard_smp_processor_id(0);
- set_hard_smp_processor_id(0, boot_cpuid_phys);
- set_hard_smp_processor_id(swap_cpuid, tmp);
- }
-
#ifdef CONFIG_PPC64
/*
* On pSeries LPAR, we need to know how many cpus
* could possibly be added to this partition.
*/
- if (_machine == PLATFORM_PSERIES_LPAR &&
+ if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) &&
(dn = of_find_node_by_path("/rtas"))) {
int num_addr_cell, num_size_cell, maxcpus;
- unsigned int *ireg;
+ const unsigned int *ireg;
num_addr_cell = prom_n_addr_cells(dn);
num_size_cell = prom_n_size_cells(dn);
- ireg = (unsigned int *)
- get_property(dn, "ibm,lrdr-capacity", NULL);
+ ireg = get_property(dn, "ibm,lrdr-capacity", NULL);
if (!ireg)
goto out;
/*
* Do the sibling map; assume only two threads per processor.
*/
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
cpu_set(cpu, cpu_sibling_map[cpu]);
if (cpu_has_feature(CPU_FTR_SMT))
cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]);
}
#endif /* CONFIG_SMP */
-#ifdef CONFIG_XMON
-static int __init early_xmon(char *p)
+static __init int add_pcspkr(void)
+{
+ struct device_node *np;
+ struct platform_device *pd;
+ int ret;
+
+ np = of_find_compatible_node(NULL, NULL, "pnpPNP,100");
+ of_node_put(np);
+ if (!np)
+ return -ENODEV;
+
+ pd = platform_device_alloc("pcspkr", -1);
+ if (!pd)
+ return -ENOMEM;
+
+ ret = platform_device_add(pd);
+ if (ret)
+ platform_device_put(pd);
+
+ return ret;
+}
+device_initcall(add_pcspkr);
+
+void probe_machine(void)
{
- /* ensure xmon is enabled */
- if (p) {
- if (strncmp(p, "on", 2) == 0)
- xmon_init(1);
- if (strncmp(p, "off", 3) == 0)
- xmon_init(0);
- if (strncmp(p, "early", 5) != 0)
- return 0;
+ extern struct machdep_calls __machine_desc_start;
+ extern struct machdep_calls __machine_desc_end;
+
+ /*
+ * Iterate all ppc_md structures until we find the proper
+ * one for the current machine type
+ */
+ DBG("Probing machine type ...\n");
+
+ for (machine_id = &__machine_desc_start;
+ machine_id < &__machine_desc_end;
+ machine_id++) {
+ DBG(" %s ...", machine_id->name);
+ memcpy(&ppc_md, machine_id, sizeof(struct machdep_calls));
+ if (ppc_md.probe()) {
+ DBG(" match !\n");
+ break;
+ }
+ DBG("\n");
+ }
+ /* What can we do if we didn't find ? */
+ if (machine_id >= &__machine_desc_end) {
+ DBG("No suitable machine found !\n");
+ for (;;);
}
- xmon_init(1);
- debugger(NULL);
- return 0;
+ printk(KERN_INFO "Using %s machine description\n", ppc_md.name);
+}
+
+int check_legacy_ioport(unsigned long base_port)
+{
+ if (ppc_md.check_legacy_ioport == NULL)
+ return 0;
+ return ppc_md.check_legacy_ioport(base_port);
+}
+EXPORT_SYMBOL(check_legacy_ioport);
+
+static int ppc_panic_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ ppc_md.panic(ptr); /* May not return */
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block ppc_panic_block = {
+ .notifier_call = ppc_panic_event,
+ .priority = INT_MIN /* may not return; must be done last */
+};
+
+void __init setup_panic(void)
+{
+ atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block);
}
-early_param("xmon", early_xmon);
-#endif
git://git.onelab.eu / linux-2.6.git / blobdiff