[ACPI] merge 2.4.22 cleanup into 2.6

Restores CONFIG_ACPI_HT_ONLY as an alternative to CONFIG_ACPI
rather than a prerequisite

arch/i386/kernel/acpi/boot.c

@@ -183,8 +183,7 @@ acpi_parse_lapic_nmi (
 
 #endif /*CONFIG_X86_LOCAL_APIC*/
 
-#ifdef CONFIG_X86_IO_APIC
-
+#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER)
 
 static int __init
 acpi_parse_ioapic (
@@ -368,7 +367,6 @@ acpi_boot_init (void)
 
 	result = acpi_table_parse(ACPI_APIC, acpi_parse_madt);
 	if (!result) {
-		printk(KERN_WARNING PREFIX "MADT not present\n");
 		return 0;
 	}
 	else if (result < 0) {
@@ -416,7 +414,7 @@ acpi_boot_init (void)
 
 #endif /*CONFIG_X86_LOCAL_APIC*/
 
-#ifdef CONFIG_X86_IO_APIC
+#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER)
 
 	/* 
 	 * I/O APIC 
@@ -472,7 +470,8 @@ acpi_boot_init (void)
 	acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
 
 	acpi_ioapic = 1;
-#endif /*CONFIG_X86_IO_APIC*/
+
+#endif /* CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER */
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	if (acpi_lapic && acpi_ioapic) {
@@ -480,6 +479,7 @@ acpi_boot_init (void)
 		clustered_apic_check();
 	}
 #endif
+
 #ifdef CONFIG_HPET_TIMER
 	acpi_table_parse(ACPI_HPET, acpi_parse_hpet);
 #endif

arch/i386/kernel/mpparse.c

@@ -830,7 +830,7 @@ void __init mp_register_lapic (
 	MP_processor_info(&processor);
 }
 
-#ifdef CONFIG_X86_IO_APIC
+#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER)
 
 #define MP_ISA_BUS		0
 #define MP_MAX_IOAPIC_PIN	127
@@ -1019,8 +1019,6 @@ void __init mp_config_acpi_legacy_irqs (void)
 	}
 }
 
-#ifdef	CONFIG_ACPI
-
 /* Ensure the ACPI SCI interrupt level is active low, edge-triggered */
 
 extern FADT_DESCRIPTOR acpi_fadt;
@@ -1074,7 +1072,6 @@ void __init mp_config_ioapic_for_sci(int irq)
 
 	io_apic_set_pci_routing(ioapic, ioapic_pin, irq, 1, 1); // Active low, level triggered
 }
-#endif	/* CONFIG_ACPI */
 
 #ifdef CONFIG_ACPI_PCI
 
@@ -1154,5 +1151,5 @@ void __init mp_parse_prt (void)
 }
 
 #endif /*CONFIG_ACPI_PCI*/
-#endif	/* CONFIG_X86_IO_APIC */
+#endif /*CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER*/
 #endif /*CONFIG_ACPI_BOOT*/

arch/i386/kernel/setup.c

@@ -64,7 +64,7 @@ struct cpuinfo_x86 boot_cpu_data = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
 unsigned long mmu_cr4_features;
 EXPORT_SYMBOL_GPL(mmu_cr4_features);
 
-#ifdef	CONFIG_ACPI
+#ifdef	CONFIG_ACPI_INTERPRETER
 	int acpi_disabled __initdata = 0;
 #else
 	int acpi_disabled __initdata = 1;

drivers/acpi/Kconfig

@@ -3,34 +3,14 @@
 #
 
 menu "ACPI (Advanced Configuration and Power Interface) Support"
-
-config ACPI_HT
-	bool "ACPI Processor Enumeration for HT"
-	depends on X86
-	default y
-	---help---
-	  ACPI enumerates both logical (a.k.a. Hyper-Threaded -- HT)
-	  and physical processors.  It is designed to obsolete several older
-	  specifications, including the MultiProcessor Specification (MPS),
-	  which supported only physical processors.
-
-	  CONFIG_ACPI_HT includes the minimal ACPI boot-time code
-	  necessary to enumerate logical processors and enable HT.
-
-	  CONFIG_ACPI includes CONFIG_ACPI_HT, plus IO APIC enumeration,
-	  and the hooks to run the ACPI AML interpreter for run-time events.
-
-	  When CONFIG_ACPI is selected, the command-line option "acpi=ht"
-	  is available to run just the ACPI boot-time code -- just as if
-	  only CONFIG_ACPI_HT were selected.
-
-	  Note that "acpi=off" can be used to disable all ACPI code in the kernel.
-
-config ACPI
-	bool "Full ACPI Support"
 	depends on !X86_VISWS
 	depends on !IA64_HP_SIM
-	depends on IA64 || (X86 || ACPI_HT)
+	depends on IA64 || X86
+
+config ACPI
+	bool "ACPI Support"
+	depends on IA64 || X86
+
 	default y
 	---help---
 	  Advanced Configuration and Power Interface (ACPI) support for 
@@ -60,14 +40,47 @@ config ACPI
 	  available at:
 	  <http://www.acpi.info>
 
+config ACPI_HT_ONLY
+	bool "Restrict ACPI to minimum boot code to enable HT"
+	depends on X86
+	depends on ACPI
+	depends on SMP
+	default n
+	---help---
+	  ACPI enumerates both logical (a.k.a. Hyper-Threaded -- HT)
+	  and physical processors.  It is designed to obsolete several older
+	  specifications, including the MultiProcessor Specification (MPS),
+	  which supported only physical processors.
+
+	  CONFIG_ACPI_HT_ONLY includes just the minimal ACPI boot-time code
+	  necessary to enumerate logical processors and enable HT.
+
+	  CONFIG_ACPI includes this, plus IO APIC enumeration,
+	  and the hooks to run the ACPI AML interpreter for run-time events.
+
+	  When CONFIG_ACPI is selected, the command-line option "acpi=ht"
+	  is available to run just the ACPI boot-time code -- just as if
+	  only CONFIG_ACPI_HT_ONLY were selected.
+
+	  Note that "acpi=off" can be used to disable all ACPI code in the kernel.
+
+
 config ACPI_BOOT
 	bool
-	depends on ACPI || ACPI_HT
+	depends on ACPI
+	default y
+
+config ACPI_INTERPRETER
+	bool
+	depends on ACPI
+	depends on !IA64_SGI_SN
+	depends on !ACPI_HT_ONLY
 	default y
 
 config ACPI_SLEEP
 	bool "Sleep States (EXPERIMENTAL)"
 	depends on X86 && ACPI
+	depends on ACPI_INTERPRETER
 	depends on EXPERIMENTAL && PM
 	select SOFTWARE_SUSPEND
 	default y
@@ -94,7 +107,8 @@ config ACPI_SLEEP_PROC_FS
 
 config ACPI_AC
 	tristate "AC Adapter"
-	depends on X86 && ACPI
+	depends on X86
+	depends on ACPI_INTERPRETER
 	default m
 	help
 	  This driver adds support for the AC Adapter object, which indicates
@@ -103,7 +117,8 @@ config ACPI_AC
 
 config ACPI_BATTERY
 	tristate "Battery"
-	depends on X86 && ACPI
+	depends on X86
+	depends on ACPI_INTERPRETER
 	default m
 	help
 	  This driver adds support for battery information through
@@ -112,7 +127,7 @@ config ACPI_BATTERY
 
 config ACPI_BUTTON
 	tristate "Button"
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default m
 	help
@@ -124,7 +139,7 @@ config ACPI_BUTTON
 
 config ACPI_FAN
 	tristate "Fan"
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default m
 	help
@@ -133,7 +148,7 @@ config ACPI_FAN
 
 config ACPI_PROCESSOR
 	tristate "Processor"
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default m
 	help
@@ -153,14 +168,15 @@ config ACPI_THERMAL
 
 config ACPI_NUMA
 	bool "NUMA support"
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on NUMA
 	depends on !X86_64
 	default y if IA64_GENERIC || IA64_SGI_SN2
 
 config ACPI_ASUS
         tristate "ASUS/Medion Laptop Extras"
-        depends on X86 && ACPI
+	depends on X86
+	depends on ACPI_INTERPRETER
 	default m
         ---help---
           This driver provides support for extra features of ACPI-compatible
@@ -186,7 +202,8 @@ config ACPI_ASUS
           
 config ACPI_TOSHIBA
 	tristate "Toshiba Laptop Extras"
-	depends on X86 && ACPI
+	depends on X86
+	depends on ACPI_INTERPRETER
 	default m
 	---help---
 	  This driver adds support for access to certain system settings
@@ -213,7 +230,7 @@ config ACPI_TOSHIBA
 
 config ACPI_DEBUG
 	bool "Debug Statements"
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default n
 	help
@@ -223,19 +240,14 @@ config ACPI_DEBUG
 
 config ACPI_BUS
 	bool
-	depends on ACPI
-	depends on !IA64_SGI_SN
-	default y
-
-config ACPI_INTERPRETER
-	bool
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default y
 
 config ACPI_EC
 	bool
-	depends on X86 && ACPI
+	depends on X86
+	depends on ACPI_INTERPRETER
 	default y
 	help
 	  This driver is required on some systems for the proper operation of
@@ -244,19 +256,19 @@ config ACPI_EC
 
 config ACPI_POWER
 	bool
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default y
 
 config ACPI_PCI
 	bool
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default PCI
 
 config ACPI_SYSTEM
 	bool
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on !IA64_SGI_SN
 	default y
 	help
@@ -265,7 +277,7 @@ config ACPI_SYSTEM
 
 config ACPI_EFI
 	bool
-	depends on ACPI
+	depends on ACPI_INTERPRETER
 	depends on IA64
 	default y
 

drivers/acpi/Makefile

@@ -18,7 +18,7 @@ obj-$(CONFIG_ACPI)		:= acpi_ksyms.o
 # ACPI Boot-Time Table Parsing
 #
 obj-$(CONFIG_ACPI_BOOT)		+= tables.o
-obj-$(CONFIG_ACPI)		+= blacklist.o
+obj-$(CONFIG_ACPI_INTERPRETER)	+= blacklist.o
 
 #
 # ACPI Core Subsystem (Interpreter)

include/linux/acpi.h

@@ -424,17 +424,17 @@ int ec_write(u8 addr, u8 val);
 
 #endif /*CONFIG_ACPI_EC*/
 
-#ifdef CONFIG_ACPI
+#ifdef CONFIG_ACPI_INTERPRETER
 
 int acpi_blacklisted(void);
 
-#else
+#else /*!CONFIG_ACPI_INTERPRETER*/
 
 static inline int acpi_blacklisted(void)
 {
 	return 0;
 }
 
-#endif /*CONFIG_ACPI*/
+#endif /*!CONFIG_ACPI_INTERPRETER*/
 
 #endif /*_LINUX_ACPI_H*/

init/do_mounts.h

@@ -79,4 +79,3 @@ void md_run_setup(void);
 static inline void md_run_setup(void) {}
 
 #endif
-