#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/delay.h>
#include <asm/prom.h>
#include <asm/rtas.h>
#include <asm/delay.h>
#include <asm/uaccess.h>
#include <asm/lmb.h>
-#ifdef CONFIG_PPC64
-#include <asm/systemcfg.h>
-#endif
struct rtas_t rtas = {
.lock = SPIN_LOCK_UNLOCKED
char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
unsigned long rtas_rmo_buf;
+/*
+ * If non-NULL, this gets called when the kernel terminates.
+ * This is done like this so rtas_flash can be a module.
+ */
+void (*rtas_flash_term_hook)(int);
+EXPORT_SYMBOL(rtas_flash_term_hook);
+
/*
* call_rtas_display_status and call_rtas_display_status_delay
* are designed only for very early low-level debugging, which
while (width-- > 0)
call_rtas_display_status(' ');
width = 16;
- udelay(500000);
+ mdelay(500);
pending_newline = 1;
} else {
if (pending_newline) {
spin_unlock(&progress_lock);
}
+EXPORT_SYMBOL(rtas_progress); /* needed by rtas_flash module */
int rtas_token(const char *service)
{
void rtas_restart(char *cmd)
{
+ if (rtas_flash_term_hook)
+ rtas_flash_term_hook(SYS_RESTART);
printk("RTAS system-reboot returned %d\n",
rtas_call(rtas_token("system-reboot"), 0, 1, NULL));
for (;;);
void rtas_power_off(void)
{
+ if (rtas_flash_term_hook)
+ rtas_flash_term_hook(SYS_POWER_OFF);
/* allow power on only with power button press */
printk("RTAS power-off returned %d\n",
rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
void rtas_halt(void)
{
- rtas_power_off();
+ if (rtas_flash_term_hook)
+ rtas_flash_term_hook(SYS_HALT);
+ /* allow power on only with power button press */
+ printk("RTAS power-off returned %d\n",
+ rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
+ for (;;);
}
/* Must be in the RMO region, so we place it here */
return 0;
}
-#ifdef CONFIG_SMP
/* This version can't take the spinlock, because it never returns */
struct rtas_args rtas_stop_self_args = {
panic("Alas, I survived.\n");
}
-#endif
/*
* Call early during boot, before mem init or bootmem, to retreive the RTAS
* the stop-self token if any
*/
#ifdef CONFIG_PPC64
- if (systemcfg->platform == PLATFORM_PSERIES_LPAR)
+ if (_machine == PLATFORM_PSERIES_LPAR)
rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX);
#endif
rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region);