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S4bios support

PATCH Pavel Machek 2 participants 3 messages Jun 12, 2002 – Jun 16, 2002

Subsystems (3)
ACPI Suspend to RAM Hibernation
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Pavel Machek

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#0 lore raw

Hi!

I ported s4bios support to 2.5.21 and make it somehow work on my machine. It suspend, resumes (with nice graphics ;-), but kernel does not wake up devices properly. If someone wants to play...
Pavel

arch/i386/kernel/suspend.c +15 -0
@@ -302,3 +302,18 @@
 	do_magic_resume_2();
 }
 #endif
+
+void do_suspend_magic_s4bios(int resume)
+{
+	if (!resume) {
+		save_processor_context();
+		acpi_save_register_state((unsigned long) &&acpi_sleep_done);
+		acpi_enter_s4bios();
+		return;
+	}
+acpi_sleep_done:
+	restore_processor_context();
+	printk("CPU context restored...\n");
+}
+
+
drivers/acpi/hardware/hwsleep.c +54 -1

75 lines not on this page · raw message

drivers/acpi/system.c +44 -6

99 lines not on this page · raw message

include/asm-i386/acpi.h +3 -0
@@ -138,6 +138,9 @@
 /* early initialization routine */
 extern void acpi_reserve_bootmem(void);
 
+extern void do_suspend_magic(int);
+extern void do_suspend_magic_s4(int);
+
 #endif /*CONFIG_ACPI_SLEEP*/
 
 #endif /*__KERNEL__*/
include/linux/suspend.h +6 -0
@@ -48,6 +48,9 @@
 /* mm/vmscan.c */
 extern int shrink_mem(void);
 
+/* kernel/signal.c */
+extern inline void signal_wake_up (struct task_struct *);
+
 /* kernel/suspend.c */
 extern void software_suspend(void);
 extern void software_resume(void);

@@ -55,6 +58,9 @@
 extern int register_suspend_notifier(struct notifier_block *);
 extern int unregister_suspend_notifier(struct notifier_block *);
 extern void refrigerator(unsigned long);
+
+extern int freeze_processes(void);
+extern void thaw_processes(void); 
 
 extern int freeze_processes(void);
 extern void thaw_processes(void);
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#1 lore raw
Quoted 5 lines · Pavel Machek

Hi!

I ported s4bios support to 2.5.21 and make it somehow work on my machine. It suspend, resumes (with nice graphics ;-), but kernel does not wake up devices properly. If someone wants to play...

What kind of issues you got ?

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author
#2 lore raw
Quoted 8 lines · Pavel Machek
Quoted 5 lines

Hi!

I ported s4bios support to 2.5.21 and make it somehow work on my machine. It suspend, resumes (with nice graphics ;-), but kernel does not wake up devices properly. If someone wants to play...

What kind of issues you got ?

Lockup on awake.

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