Merge branch 'linus' into release

[sfrench/cifs-2.6.git] / arch / x86 / kernel / acpi / sleep.c

diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 5f1b747f6ef1b8d8a88f5784c0a5c56ad65bc86c..ff93bc1b09c3aedd1a83a9e2e94952b56aef4fff 100644 (file)
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -18,12 +18,8 @@
 #include "realmode/wakeup.h"
 #include "sleep.h"
 
-unsigned long acpi_wakeup_address;
 unsigned long acpi_realmode_flags;
 
-/* address in low memory of the wakeup routine. */
-static unsigned long acpi_realmode;
-
 #if defined(CONFIG_SMP) && defined(CONFIG_64BIT)
 static char temp_stack[4096];
 #endif
@@ -33,22 +29,17 @@ static char temp_stack[4096];
  *
  * Create an identity mapped page table and copy the wakeup routine to
  * low memory.
- *
- * Note that this is too late to change acpi_wakeup_address.
  */
 int acpi_suspend_lowlevel(void)
 {
        struct wakeup_header *header;
+       /* address in low memory of the wakeup routine. */
+       char *acpi_realmode;
 
-       if (!acpi_realmode) {
-               printk(KERN_ERR "Could not allocate memory during boot, "
-                      "S3 disabled\n");
-               return -ENOMEM;
-       }
-       memcpy((void *)acpi_realmode, &wakeup_code_start, WAKEUP_SIZE);
+       acpi_realmode = TRAMPOLINE_SYM(acpi_wakeup_code);
 
-       header = (struct wakeup_header *)(acpi_realmode + HEADER_OFFSET);
-       if (header->signature != 0x51ee1111) {
+       header = (struct wakeup_header *)(acpi_realmode + WAKEUP_HEADER_OFFSET);
+       if (header->signature != WAKEUP_HEADER_SIGNATURE) {
                printk(KERN_ERR "wakeup header does not match\n");
                return -EINVAL;
        }
@@ -68,9 +59,7 @@ int acpi_suspend_lowlevel(void)
        /* GDT[0]: GDT self-pointer */
        header->wakeup_gdt[0] =
                (u64)(sizeof(header->wakeup_gdt) - 1) +
-               ((u64)(acpi_wakeup_address +
-                       ((char *)&header->wakeup_gdt - (char *)acpi_realmode))
-                               << 16);
+               ((u64)__pa(&header->wakeup_gdt) << 16);
        /* GDT[1]: big real mode-like code segment */
        header->wakeup_gdt[1] =
                GDT_ENTRY(0x809b, acpi_wakeup_address, 0xfffff);
@@ -96,7 +85,7 @@ int acpi_suspend_lowlevel(void)
        header->pmode_cr3 = (u32)__pa(&initial_page_table);
        saved_magic = 0x12345678;
 #else /* CONFIG_64BIT */
-       header->trampoline_segment = setup_trampoline() >> 4;
+       header->trampoline_segment = trampoline_address() >> 4;
 #ifdef CONFIG_SMP
        stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
        early_gdt_descr.address =
@@ -111,45 +100,6 @@ int acpi_suspend_lowlevel(void)
        return 0;
 }
 
-/**
- * acpi_reserve_wakeup_memory - do _very_ early ACPI initialisation
- *
- * We allocate a page from the first 1MB of memory for the wakeup
- * routine for when we come back from a sleep state. The
- * runtime allocator allows specification of <16MB pages, but not
- * <1MB pages.
- */
-void __init acpi_reserve_wakeup_memory(void)
-{
-       phys_addr_t mem;
-
-       if ((&wakeup_code_end - &wakeup_code_start) > WAKEUP_SIZE) {
-               printk(KERN_ERR
-                      "ACPI: Wakeup code way too big, S3 disabled.\n");
-               return;
-       }
-
-       mem = memblock_find_in_range(0, 1<<20, WAKEUP_SIZE, PAGE_SIZE);
-
-       if (mem == MEMBLOCK_ERROR) {
-               printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n");
-               return;
-       }
-       acpi_realmode = (unsigned long) phys_to_virt(mem);
-       acpi_wakeup_address = mem;
-       memblock_x86_reserve_range(mem, mem + WAKEUP_SIZE, "ACPI WAKEUP");
-}
-
-int __init acpi_configure_wakeup_memory(void)
-{
-       if (acpi_realmode)
-               set_memory_x(acpi_realmode, WAKEUP_SIZE >> PAGE_SHIFT);
-
-       return 0;
-}
-arch_initcall(acpi_configure_wakeup_memory);
-
-
 static int __init acpi_sleep_setup(char *str)
 {
        while ((str != NULL) && (*str != '\0')) {