extern void smp_release_cpus(void);
-unsigned long decr_overclock = 1;
-unsigned long decr_overclock_proc0 = 1;
-unsigned long decr_overclock_set = 0;
-unsigned long decr_overclock_proc0_set = 0;
-
int have_of = 1;
int boot_cpuid = 0;
int boot_cpuid_phys = 0;
/* The main machine-dep calls structure
*/
struct machdep_calls ppc_md;
+EXPORT_SYMBOL(ppc_md);
#ifdef CONFIG_MAGIC_SYSRQ
unsigned long SYSRQ_KEY;
nthreads = len / sizeof(u32);
for (j = 0; j < nthreads && cpu < NR_CPUS; j++) {
- /*
- * Only spin up secondary threads if SMT is enabled.
- * We must leave space in the logical map for the
- * threads.
- */
- if (j == 0 || smt_enabled_at_boot) {
- cpu_set(cpu, cpu_present_map);
- set_hard_smp_processor_id(cpu, intserv[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);
maxcpus = ireg[num_addr_cell + num_size_cell];
/* Double maxcpus for processors which have SMT capability */
- if (cur_cpu_spec->cpu_features & CPU_FTR_SMT)
+ if (cpu_has_feature(CPU_FTR_SMT))
maxcpus *= 2;
if (maxcpus > NR_CPUS) {
*/
for_each_cpu(cpu) {
cpu_set(cpu, cpu_sibling_map[cpu]);
- if (cur_cpu_spec->cpu_features & CPU_FTR_SMT)
+ if (cpu_has_feature(CPU_FTR_SMT))
cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]);
}
*/
initialize_cache_info();
-#ifdef CONFIG_PPC_PSERIES
+#ifdef CONFIG_PPC_RTAS
/*
* Initialize RTAS if available
*/
rtas_initialize();
-#endif /* CONFIG_PPC_PSERIES */
+#endif /* CONFIG_PPC_RTAS */
/*
* Check if we have an initrd provided via the device-tree
early_console_initialized = 1;
register_console(&udbg_console);
-#endif /* !CONFIG_PPC_ISERIES */
-
/* Save unparsed command line copy for /proc/cmdline */
strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
parse_early_param();
+#endif /* !CONFIG_PPC_ISERIES */
#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES)
/*
seq_printf(m, "unknown (%08x)", pvr);
#ifdef CONFIG_ALTIVEC
- if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
+ if (cpu_has_feature(CPU_FTR_ALTIVEC))
seq_printf(m, ", altivec supported");
#endif /* CONFIG_ALTIVEC */
.show = show_cpuinfo,
};
-#if 0 /* XXX not currently used */
+/*
+ * These three variables are used to save values passed to us by prom_init()
+ * via the device tree. The TCE variables are needed because with a memory_limit
+ * in force we may need to explicitly map the TCE are at the top of RAM.
+ */
unsigned long memory_limit;
+unsigned long tce_alloc_start;
+unsigned long tce_alloc_end;
+#ifdef CONFIG_PPC_ISERIES
+/*
+ * On iSeries we just parse the mem=X option from the command line.
+ * On pSeries it's a bit more complicated, see prom_init_mem()
+ */
static int __init early_parsemem(char *p)
{
if (!p)
return 0;
- memory_limit = memparse(p, &p);
+ memory_limit = ALIGN(memparse(p, &p), PAGE_SIZE);
return 0;
}
early_param("mem", early_parsemem);
-#endif
+#endif /* CONFIG_PPC_ISERIES */
#ifdef CONFIG_PPC_MULTIPLATFORM
static int __init set_preferred_console(void)
limit)) + PAGE_SIZE;
}
+/*
+ * Called from setup_arch to initialize the bitmap of available
+ * syscalls in the systemcfg page
+ */
+void __init setup_syscall_map(void)
+{
+ unsigned int i, count64 = 0, count32 = 0;
+ extern unsigned long *sys_call_table;
+ extern unsigned long *sys_call_table32;
+ extern unsigned long sys_ni_syscall;
+
+
+ for (i = 0; i < __NR_syscalls; i++) {
+ if (sys_call_table[i] == sys_ni_syscall)
+ continue;
+ count64++;
+ systemcfg->syscall_map_64[i >> 5] |= 0x80000000UL >> (i & 0x1f);
+ }
+ for (i = 0; i < __NR_syscalls; i++) {
+ if (sys_call_table32[i] == sys_ni_syscall)
+ continue;
+ count32++;
+ systemcfg->syscall_map_32[i >> 5] |= 0x80000000UL >> (i & 0x1f);
+ }
+ printk(KERN_INFO "Syscall map setup, %d 32 bits and %d 64 bits syscalls\n",
+ count32, count64);
+}
+
/*
* Called into from start_kernel, after lock_kernel has been called.
* Initializes bootmem, which is unsed to manage page allocation until
/* set up the bootmem stuff with available memory */
do_init_bootmem();
+ /* initialize the syscall map in systemcfg */
+ setup_syscall_map();
+
ppc_md.setup_arch();
/* Select the correct idle loop for the platform. */
printk("[dump]%04x %s\n", src, msg);
}
-int set_spread_lpevents( char * str )
-{
- /* The parameter is the number of processors to share in processing lp events */
- unsigned long i;
- unsigned long val = simple_strtoul( str, NULL, 0 );
- if ( ( val > 0 ) && ( val <= NR_CPUS ) ) {
- for ( i=1; i<val; ++i )
- paca[i].lpqueue_ptr = paca[0].lpqueue_ptr;
- printk("lpevent processing spread over %ld processors\n", val);
- }
- else
- printk("invalid spreaqd_lpevents %ld\n", val);
- return 1;
-}
-
/* This should only be called on processor 0 during calibrate decr */
void setup_default_decr(void)
{
struct paca_struct *lpaca = get_paca();
- if ( decr_overclock_set && !decr_overclock_proc0_set )
- decr_overclock_proc0 = decr_overclock;
-
- lpaca->default_decr = tb_ticks_per_jiffy / decr_overclock_proc0;
+ lpaca->default_decr = tb_ticks_per_jiffy;
lpaca->next_jiffy_update_tb = get_tb() + tb_ticks_per_jiffy;
}
-int set_decr_overclock_proc0( char * str )
-{
- unsigned long val = simple_strtoul( str, NULL, 0 );
- if ( ( val >= 1 ) && ( val <= 48 ) ) {
- decr_overclock_proc0_set = 1;
- decr_overclock_proc0 = val;
- printk("proc 0 decrementer overclock factor of %ld\n", val);
- }
- else
- printk("invalid proc 0 decrementer overclock factor of %ld\n", val);
- return 1;
-}
-
-int set_decr_overclock( char * str )
-{
- unsigned long val = simple_strtoul( str, NULL, 0 );
- if ( ( val >= 1 ) && ( val <= 48 ) ) {
- decr_overclock_set = 1;
- decr_overclock = val;
- printk("decrementer overclock factor of %ld\n", val);
- }
- else
- printk("invalid decrementer overclock factor of %ld\n", val);
- return 1;
-
-}
-
-__setup("spread_lpevents=", set_spread_lpevents );
-__setup("decr_overclock_proc0=", set_decr_overclock_proc0 );
-__setup("decr_overclock=", set_decr_overclock );
-
#ifndef CONFIG_PPC_ISERIES
/*
* This function can be used by platforms to "find" legacy serial ports.
static int __init early_xmon(char *p)
{
/* ensure xmon is enabled */
+ if (p) {
+ if (strncmp(p, "on", 2) == 0)
+ xmon_init();
+ if (strncmp(p, "early", 5) != 0)
+ return 0;
+ }
xmon_init();
debugger(NULL);
void cpu_die(void)
{
- idle_task_exit();
if (ppc_md.cpu_die)
ppc_md.cpu_die();
- local_irq_disable();
- for (;;);
}
git://git.onelab.eu / linux-2.6.git / blobdiff