x86: remove subarchitecture support code

Remove remaining bits of the subarchitecture code. Now that all the
special platforms are runtime probed and runtime handled, we can remove
these facilities.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/Makefile

@@ -113,11 +113,6 @@ mcore-y  := arch/x86/mach-default/
 mflags-$(CONFIG_X86_VOYAGER)	:= -Iarch/x86/include/asm/mach-voyager
 mcore-$(CONFIG_X86_VOYAGER)	:= arch/x86/mach-voyager/
 
-# generic subarchitecture
-mflags-$(CONFIG_X86_GENERICARCH):= -Iarch/x86/include/asm/mach-generic
-fcore-$(CONFIG_X86_GENERICARCH)	+= arch/x86/mach-generic/
-mcore-$(CONFIG_X86_GENERICARCH)	:= arch/x86/mach-default/
-
 # default subarch .h files
 mflags-y += -Iarch/x86/include/asm/mach-default
 

arch/x86/kernel/Makefile

@@ -30,7 +30,7 @@ obj-y			+= traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
 obj-y			+= time_$(BITS).o ioport.o ldt.o dumpstack.o
 obj-y			+= setup.o i8259.o irqinit_$(BITS).o
 obj-$(CONFIG_X86_VISWS)	+= visws_quirks.o
-obj-$(CONFIG_X86_32)	+= probe_roms_32.o
+obj-$(CONFIG_X86_32)	+= probe_32.o probe_roms_32.o
 obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
 obj-$(CONFIG_X86_64)	+= syscall_64.o vsyscall_64.o

arch/x86/kernel/probe_32.c

@@ -1,4 +1,6 @@
 /*
+ * Default generic APIC driver. This handles up to 8 CPUs.
+ *
  * Copyright 2003 Andi Kleen, SuSE Labs.
  * Subject to the GNU Public License, v.2
  *
@@ -17,6 +19,96 @@
 #include <asm/genapic.h>
 #include <asm/setup.h>
 
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <asm/mpspec.h>
+#include <asm/genapic.h>
+#include <asm/fixmap.h>
+#include <asm/apicdef.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <asm/genapic.h>
+#include <asm/ipi.h>
+
+static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
+{
+	/*
+	 * Careful. Some cpus do not strictly honor the set of cpus
+	 * specified in the interrupt destination when using lowest
+	 * priority interrupt delivery mode.
+	 *
+	 * In particular there was a hyperthreading cpu observed to
+	 * deliver interrupts to the wrong hyperthread when only one
+	 * hyperthread was specified in the interrupt desitination.
+	 */
+	*retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
+}
+
+/* should be called last. */
+static int probe_default(void)
+{
+	return 1;
+}
+
+struct genapic apic_default = {
+
+	.name				= "default",
+	.probe				= probe_default,
+	.acpi_madt_oem_check		= NULL,
+	.apic_id_registered		= default_apic_id_registered,
+
+	.irq_delivery_mode		= dest_LowestPrio,
+	/* logical delivery broadcast to all CPUs: */
+	.irq_dest_mode			= 1,
+
+	.target_cpus			= default_target_cpus,
+	.disable_esr			= 0,
+	.dest_logical			= APIC_DEST_LOGICAL,
+	.check_apicid_used		= default_check_apicid_used,
+	.check_apicid_present		= default_check_apicid_present,
+
+	.vector_allocation_domain	= default_vector_allocation_domain,
+	.init_apic_ldr			= default_init_apic_ldr,
+
+	.ioapic_phys_id_map		= default_ioapic_phys_id_map,
+	.setup_apic_routing		= default_setup_apic_routing,
+	.multi_timer_check		= NULL,
+	.apicid_to_node			= default_apicid_to_node,
+	.cpu_to_logical_apicid		= default_cpu_to_logical_apicid,
+	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
+	.apicid_to_cpu_present		= default_apicid_to_cpu_present,
+	.setup_portio_remap		= NULL,
+	.check_phys_apicid_present	= default_check_phys_apicid_present,
+	.enable_apic_mode		= NULL,
+	.phys_pkg_id			= default_phys_pkg_id,
+	.mps_oem_check			= NULL,
+
+	.get_apic_id			= default_get_apic_id,
+	.set_apic_id			= NULL,
+	.apic_id_mask			= 0x0F << 24,
+
+	.cpu_mask_to_apicid		= default_cpu_mask_to_apicid,
+	.cpu_mask_to_apicid_and		= default_cpu_mask_to_apicid_and,
+
+	.send_IPI_mask			= default_send_IPI_mask,
+	.send_IPI_mask_allbutself	= NULL,
+	.send_IPI_allbutself		= default_send_IPI_allbutself,
+	.send_IPI_all			= default_send_IPI_all,
+	.send_IPI_self			= NULL,
+
+	.wakeup_cpu			= NULL,
+	.trampoline_phys_low		= DEFAULT_TRAMPOLINE_PHYS_LOW,
+	.trampoline_phys_high		= DEFAULT_TRAMPOLINE_PHYS_HIGH,
+
+	.wait_for_init_deassert		= default_wait_for_init_deassert,
+
+	.smp_callin_clear_local_apic	= NULL,
+	.store_NMI_vector		= NULL,
+	.inquire_remote_apic		= default_inquire_remote_apic,
+};
+
 extern struct genapic apic_numaq;
 extern struct genapic apic_summit;
 extern struct genapic apic_bigsmp;

arch/x86/mach-generic/Makefile

@@ -1,7 +0,0 @@
-#
-# Makefile for the generic architecture
-#
-
-EXTRA_CFLAGS			:= -Iarch/x86/kernel
-
-obj-y				:= probe.o default.o