Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
new file mode 100644
index 0000000..52f14e3
--- /dev/null
+++ b/arch/sparc64/kernel/power.c
@@ -0,0 +1,150 @@
+/* $Id: power.c,v 1.10 2001/12/11 01:57:16 davem Exp $
+ * power.c: Power management driver.
+ *
+ * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/system.h>
+#include <asm/ebus.h>
+#include <asm/auxio.h>
+
+#define __KERNEL_SYSCALLS__
+#include <linux/unistd.h>
+
+/*
+ * sysctl - toggle power-off restriction for serial console
+ * systems in machine_power_off()
+ */
+int scons_pwroff = 1;
+
+#ifdef CONFIG_PCI
+static void __iomem *power_reg;
+
+static DECLARE_WAIT_QUEUE_HEAD(powerd_wait);
+static int button_pressed;
+
+static irqreturn_t power_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ if (button_pressed == 0) {
+ button_pressed = 1;
+ wake_up(&powerd_wait);
+ }
+
+ /* FIXME: Check registers for status... */
+ return IRQ_HANDLED;
+}
+#endif /* CONFIG_PCI */
+
+extern void machine_halt(void);
+extern void machine_alt_power_off(void);
+static void (*poweroff_method)(void) = machine_alt_power_off;
+
+void machine_power_off(void)
+{
+ if (!serial_console || scons_pwroff) {
+#ifdef CONFIG_PCI
+ if (power_reg) {
+ /* Both register bits seem to have the
+ * same effect, so until I figure out
+ * what the difference is...
+ */
+ writel(AUXIO_PCIO_CPWR_OFF | AUXIO_PCIO_SPWR_OFF, power_reg);
+ } else
+#endif /* CONFIG_PCI */
+ if (poweroff_method != NULL) {
+ poweroff_method();
+ /* not reached */
+ }
+ }
+ machine_halt();
+}
+
+EXPORT_SYMBOL(machine_power_off);
+
+#ifdef CONFIG_PCI
+static int powerd(void *__unused)
+{
+ static char *envp[] = { "HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL };
+ char *argv[] = { "/sbin/shutdown", "-h", "now", NULL };
+ DECLARE_WAITQUEUE(wait, current);
+
+ daemonize("powerd");
+
+ add_wait_queue(&powerd_wait, &wait);
+again:
+ for (;;) {
+ set_task_state(current, TASK_INTERRUPTIBLE);
+ if (button_pressed)
+ break;
+ flush_signals(current);
+ schedule();
+ }
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&powerd_wait, &wait);
+
+ /* Ok, down we go... */
+ button_pressed = 0;
+ if (execve("/sbin/shutdown", argv, envp) < 0) {
+ printk("powerd: shutdown execution failed\n");
+ add_wait_queue(&powerd_wait, &wait);
+ goto again;
+ }
+ return 0;
+}
+
+static int __init has_button_interrupt(struct linux_ebus_device *edev)
+{
+ if (edev->irqs[0] == PCI_IRQ_NONE)
+ return 0;
+ if (!prom_node_has_property(edev->prom_node, "button"))
+ return 0;
+
+ return 1;
+}
+
+void __init power_init(void)
+{
+ struct linux_ebus *ebus;
+ struct linux_ebus_device *edev;
+ static int invoked;
+
+ if (invoked)
+ return;
+ invoked = 1;
+
+ for_each_ebus(ebus) {
+ for_each_ebusdev(edev, ebus) {
+ if (!strcmp(edev->prom_name, "power"))
+ goto found;
+ }
+ }
+ return;
+
+found:
+ power_reg = ioremap(edev->resource[0].start, 0x4);
+ printk("power: Control reg at %p ... ", power_reg);
+ poweroff_method = machine_halt; /* able to use the standard halt */
+ if (has_button_interrupt(edev)) {
+ if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
+ printk("Failed to start power daemon.\n");
+ return;
+ }
+ printk("powerd running.\n");
+
+ if (request_irq(edev->irqs[0],
+ power_handler, SA_SHIRQ, "power", NULL) < 0)
+ printk("power: Error, cannot register IRQ handler.\n");
+ } else {
+ printk("not using powerd.\n");
+ }
+}
+#endif /* CONFIG_PCI */