aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/acpi/sleep_32.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/acpi/sleep_32.c')
-rw-r--r--arch/x86/kernel/acpi/sleep_32.c70
1 files changed, 0 insertions, 70 deletions
diff --git a/arch/x86/kernel/acpi/sleep_32.c b/arch/x86/kernel/acpi/sleep_32.c
index 10699489cfe7..63fe5525e026 100644
--- a/arch/x86/kernel/acpi/sleep_32.c
+++ b/arch/x86/kernel/acpi/sleep_32.c
@@ -12,76 +12,6 @@
12 12
13#include <asm/smp.h> 13#include <asm/smp.h>
14 14
15/* address in low memory of the wakeup routine. */
16unsigned long acpi_wakeup_address = 0;
17unsigned long acpi_realmode_flags;
18extern char wakeup_start, wakeup_end;
19
20extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
21
22/**
23 * acpi_save_state_mem - save kernel state
24 *
25 * Create an identity mapped page table and copy the wakeup routine to
26 * low memory.
27 */
28int acpi_save_state_mem(void)
29{
30 if (!acpi_wakeup_address)
31 return 1;
32 memcpy((void *)acpi_wakeup_address, &wakeup_start,
33 &wakeup_end - &wakeup_start);
34 acpi_copy_wakeup_routine(acpi_wakeup_address);
35
36 return 0;
37}
38
39/*
40 * acpi_restore_state - undo effects of acpi_save_state_mem
41 */
42void acpi_restore_state_mem(void)
43{
44}
45
46/**
47 * acpi_reserve_bootmem - do _very_ early ACPI initialisation
48 *
49 * We allocate a page from the first 1MB of memory for the wakeup
50 * routine for when we come back from a sleep state. The
51 * runtime allocator allows specification of <16MB pages, but not
52 * <1MB pages.
53 */
54void __init acpi_reserve_bootmem(void)
55{
56 if ((&wakeup_end - &wakeup_start) > PAGE_SIZE) {
57 printk(KERN_ERR
58 "ACPI: Wakeup code way too big, S3 disabled.\n");
59 return;
60 }
61
62 acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE);
63 if (!acpi_wakeup_address)
64 printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n");
65}
66
67static int __init acpi_sleep_setup(char *str)
68{
69 while ((str != NULL) && (*str != '\0')) {
70 if (strncmp(str, "s3_bios", 7) == 0)
71 acpi_realmode_flags |= 1;
72 if (strncmp(str, "s3_mode", 7) == 0)
73 acpi_realmode_flags |= 2;
74 if (strncmp(str, "s3_beep", 7) == 0)
75 acpi_realmode_flags |= 4;
76 str = strchr(str, ',');
77 if (str != NULL)
78 str += strspn(str, ", \t");
79 }
80 return 1;
81}
82
83__setup("acpi_sleep=", acpi_sleep_setup);
84
85/* Ouch, we want to delete this. We already have better version in userspace, in 15/* Ouch, we want to delete this. We already have better version in userspace, in
86 s2ram from suspend.sf.net project */ 16 s2ram from suspend.sf.net project */
87static __init int reset_videomode_after_s3(const struct dmi_system_id *d) 17static __init int reset_videomode_after_s3(const struct dmi_system_id *d)