acpi: Split i386 support up.

- Created arch/i386/kernel/acpi/
- Split file into boot.c and sleep.c.
- Moved acpi_wakeup.S into there.

arch/i386/kernel/Makefile

@@ -10,14 +10,13 @@ obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
 
 obj-y				+= cpu/
 obj-y				+= timers/
+obj-$(CONFIG_ACPI)		+= acpi/
 obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot.o
 obj-$(CONFIG_MCA)		+= mca.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
 obj-$(CONFIG_MICROCODE)		+= microcode.o
 obj-$(CONFIG_APM)		+= apm.o
-obj-$(CONFIG_ACPI)		+= acpi.o
-obj-$(CONFIG_ACPI_SLEEP)	+= acpi_wakeup.o
 obj-$(CONFIG_X86_SMP)		+= smp.o smpboot.o
 obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o
 obj-$(CONFIG_X86_MPPARSE)	+= mpparse.o

arch/i386/kernel/acpi/Makefile

+obj-$(CONFIG_ACPI_BOOT)		:= boot.o
+obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup.o
+

arch/i386/kernel/acpi.c → arch/i386/kernel/acpi/boot.c

 /*
- *  acpi.c - Architecture-Specific Low-Level ACPI Support
+ *  boot.c - Architecture-Specific Low-Level ACPI Boot Support
  *
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  *  Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
- *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -24,25 +23,9 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
-#include <linux/config.h>
-#include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/pci.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
 #include <linux/acpi.h>
-#include <asm/mpspec.h>
-#include <asm/io.h>
-#include <asm/apic.h>
-#include <asm/apicdef.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
 #include <asm/pgalloc.h>
-#include <asm/io_apic.h>
-#include <asm/tlbflush.h>
 
 #include <mach_apic.h>
 #include <mach_mpparse.h>
@@ -57,7 +40,6 @@ extern int acpi_disabled;
 
 enum acpi_irq_model_id		acpi_irq_model;
 
-#ifdef CONFIG_ACPI_BOOT
 /*
  * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END,
  * to map the target physical address. The problem is that set_fixmap()
@@ -441,99 +423,3 @@ acpi_boot_init (void)
 
 	return 0;
 }
-
-#endif /*CONFIG_ACPI_BOOT*/
-
-
-/* --------------------------------------------------------------------------
-                              Low-Level Sleep Support
-   -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_SLEEP
-
-/* address in low memory of the wakeup routine. */
-unsigned long acpi_wakeup_address = 0;
-unsigned long acpi_video_flags;
-extern char wakeup_start, wakeup_end;
-
-extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
-
-static void init_low_mapping(pgd_t *pgd, int pgd_limit)
-{
-	int pgd_ofs = 0;
-
-	while ((pgd_ofs < pgd_limit) && (pgd_ofs + USER_PTRS_PER_PGD < PTRS_PER_PGD)) {
-		set_pgd(pgd, *(pgd+USER_PTRS_PER_PGD));
-		pgd_ofs++, pgd++;
-	}
-}
-
-/**
- * acpi_save_state_mem - save kernel state
- *
- * Create an identity mapped page table and copy the wakeup routine to
- * low memory.
- */
-int acpi_save_state_mem (void)
-{
-#if CONFIG_X86_PAE
-	panic("S3 and PAE do not like each other for now.");
-	return 1;
-#endif
-	init_low_mapping(swapper_pg_dir, USER_PTRS_PER_PGD);
-	memcpy((void *) acpi_wakeup_address, &wakeup_start, &wakeup_end - &wakeup_start);
-	acpi_copy_wakeup_routine(acpi_wakeup_address);
-
-	return 0;
-}
-
-/**
- * acpi_save_state_disk - save kernel state to disk
- *
- */
-int acpi_save_state_disk (void)
-{
-	return 1;
-}
-
-/*
- * acpi_restore_state
- */
-void acpi_restore_state_mem (void)
-{
-	zap_low_mappings();
-}
-
-/**
- * acpi_reserve_bootmem - do _very_ early ACPI initialisation
- *
- * We allocate a page in low memory for the wakeup
- * routine for when we come back from a sleep state. The
- * runtime allocator allows specification of <16M pages, but not
- * <1M pages.
- */
-void __init acpi_reserve_bootmem(void)
-{
-	acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE);
-	if ((&wakeup_end - &wakeup_start) > PAGE_SIZE)
-		printk(KERN_CRIT "ACPI: Wakeup code way too big, will crash on attempt to suspend\n");
-	printk(KERN_DEBUG "ACPI: have wakeup address 0x%8.8lx\n", acpi_wakeup_address);
-}
-
-static int __init acpi_sleep_setup(char *str)
-{
-	while ((str != NULL) && (*str != '\0')) {
-		if (strncmp(str, "s3_bios", 7) == 0)
-			acpi_video_flags = 1;
-		if (strncmp(str, "s3_mode", 7) == 0)
-			acpi_video_flags |= 2;
-		str = strchr(str, ',');
-		if (str != NULL)
-			str += strspn(str, ", \t");
-	}
-	return 1;
-}
-
-
-__setup("acpi_sleep=", acpi_sleep_setup);
-#endif /*CONFIG_ACPI_SLEEP*/

arch/i386/kernel/acpi/sleep.c

+/*
+ * sleep.c - x86-specific ACPI sleep support.
+ *
+ *  Copyright (C) 2001-2003 Patrick Mochel
+ */
+
+#include <linux/acpi.h>
+#include <linux/bootmem.h>
+#include <asm/smp.h>
+
+
+/* address in low memory of the wakeup routine. */
+unsigned long acpi_wakeup_address = 0;
+unsigned long acpi_video_flags;
+extern char wakeup_start, wakeup_end;
+
+extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
+
+static void init_low_mapping(pgd_t *pgd, int pgd_limit)
+{
+	int pgd_ofs = 0;
+
+	while ((pgd_ofs < pgd_limit) && (pgd_ofs + USER_PTRS_PER_PGD < PTRS_PER_PGD)) {
+		set_pgd(pgd, *(pgd+USER_PTRS_PER_PGD));
+		pgd_ofs++, pgd++;
+	}
+}
+
+/**
+ * acpi_save_state_mem - save kernel state
+ *
+ * Create an identity mapped page table and copy the wakeup routine to
+ * low memory.
+ */
+int acpi_save_state_mem (void)
+{
+#if CONFIG_X86_PAE
+	panic("S3 and PAE do not like each other for now.");
+	return 1;
+#endif
+	init_low_mapping(swapper_pg_dir, USER_PTRS_PER_PGD);
+	memcpy((void *) acpi_wakeup_address, &wakeup_start, &wakeup_end - &wakeup_start);
+	acpi_copy_wakeup_routine(acpi_wakeup_address);
+
+	return 0;
+}
+
+/**
+ * acpi_save_state_disk - save kernel state to disk
+ *
+ */
+int acpi_save_state_disk (void)
+{
+	return 1;
+}
+
+/*
+ * acpi_restore_state
+ */
+void acpi_restore_state_mem (void)
+{
+	zap_low_mappings();
+}
+
+/**
+ * acpi_reserve_bootmem - do _very_ early ACPI initialisation
+ *
+ * We allocate a page in low memory for the wakeup
+ * routine for when we come back from a sleep state. The
+ * runtime allocator allows specification of <16M pages, but not
+ * <1M pages.
+ */
+void __init acpi_reserve_bootmem(void)
+{
+	acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE);
+	if ((&wakeup_end - &wakeup_start) > PAGE_SIZE)
+		printk(KERN_CRIT "ACPI: Wakeup code way too big, will crash on attempt to suspend\n");
+	printk(KERN_DEBUG "ACPI: have wakeup address 0x%8.8lx\n", acpi_wakeup_address);
+}
+
+static int __init acpi_sleep_setup(char *str)
+{
+	while ((str != NULL) && (*str != '\0')) {
+		if (strncmp(str, "s3_bios", 7) == 0)
+			acpi_video_flags = 1;
+		if (strncmp(str, "s3_mode", 7) == 0)
+			acpi_video_flags |= 2;
+		str = strchr(str, ',');
+		if (str != NULL)
+			str += strspn(str, ", \t");
+	}
+	return 1;
+}
+
+
+__setup("acpi_sleep=", acpi_sleep_setup);