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Commit d49c4288 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86: make generic arch support NUMAQ 



... so it could fall back to normal numa and we'd reduce the impact of the
NUMAQ subarch.

NUMAQ depends on GENERICARCH
also decouple genericarch numa from acpi.
also make it fall back to bigsmp if apicid > 8.

Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent e0da3364

arch/x86/Kconfig

+36 −38
Original line number Diff line number Diff line
@@ -268,36 +268,6 @@ config X86_VOYAGER 
	  If you do not specifically know you have a Voyager based machine,

	  say N here, otherwise the kernel you build will not be bootable.



config X86_NUMAQ

	bool "NUMAQ (IBM/Sequent)"

	depends on SMP && X86_32

	select NUMA

	help

	  This option is used for getting Linux to run on a (IBM/Sequent) NUMA

	  multiquad box. This changes the way that processors are bootstrapped,

	  and uses Clustered Logical APIC addressing mode instead of Flat Logical.

	  You will need a new lynxer.elf file to flash your firmware with - send

	  email to <Martin.Bligh@us.ibm.com>.



config X86_SUMMIT

	bool "Summit/EXA (IBM x440)"

	depends on X86_32 && SMP

	help

	  This option is needed for IBM systems that use the Summit/EXA chipset.

	  In particular, it is needed for the x440.



	  If you don't have one of these computers, you should say N here.

	  If you want to build a NUMA kernel, you must select ACPI.



config X86_BIGSMP

	bool "Support for other sub-arch SMP systems with more than 8 CPUs"

	depends on X86_32 && SMP

	help

	  This option is needed for the systems that have more than 8 CPUs

	  and if the system is not of any sub-arch type above.



	  If you don't have such a system, you should say N here.



config X86_VISWS

	bool "SGI 320/540 (Visual Workstation)"

	depends on X86_32
@@ -311,12 +281,33 @@ config X86_VISWS 
	  and vice versa. See <file:Documentation/sgi-visws.txt> for details.



config X86_GENERICARCH

       bool "Generic architecture (Summit, bigsmp, ES7000, default)"

       bool "Generic architecture"

	depends on X86_32

       help

          This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.

	  It is intended for a generic binary kernel.

	  If you want a NUMA kernel, select ACPI.   We need SRAT for NUMA.

          This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default

	  subarchitectures.  It is intended for a generic binary kernel.

	  if you select them all, kernel will probe it one by one. and will

	  fallback to default.



if X86_GENERICARCH



config X86_NUMAQ

	bool "NUMAQ (IBM/Sequent)"

	depends on SMP && X86_32

	select NUMA

	help

	  This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)

	  NUMA multiquad box. This changes the way that processors are

	  bootstrapped, and uses Clustered Logical APIC addressing mode instead

	  of Flat Logical.  You will need a new lynxer.elf file to flash your

	  firmware with - send email to <Martin.Bligh@us.ibm.com>.



config X86_SUMMIT

	bool "Summit/EXA (IBM x440)"

	depends on X86_32 && SMP

	help

	  This option is needed for IBM systems that use the Summit/EXA chipset.

	  In particular, it is needed for the x440.



config X86_ES7000

	bool "Support for Unisys ES7000 IA32 series"
@@ -324,8 +315,15 @@ config X86_ES7000 
	help

	  Support for Unisys ES7000 systems.  Say 'Y' here if this kernel is

	  supposed to run on an IA32-based Unisys ES7000 system.

	  Only choose this option if you have such a system, otherwise you

	  should say N here.



config X86_BIGSMP

	bool "Support for big SMP systems with more than 8 CPUs"

	depends on X86_32 && SMP

	help

	  This option is needed for the systems that have more than 8 CPUs

	  and if the system is not of any sub-arch type above.



endif



config X86_RDC321X

	bool "RDC R-321x SoC"
@@ -913,9 +911,9 @@ config X86_PAE 
config NUMA

	bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"

	depends on SMP

	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL)

	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_GENERICARCH || X86_SUMMIT && ACPI) && EXPERIMENTAL)

	default n if X86_PC

	default y if (X86_NUMAQ || X86_SUMMIT)

	default y if (X86_NUMAQ || X86_SUMMIT || X86_GENERICARCH)

	help

	  Enable NUMA (Non Uniform Memory Access) support.

	  The kernel will try to allocate memory used by a CPU on the

arch/x86/Makefile

+0 −18
Original line number Diff line number Diff line
@@ -117,29 +117,11 @@ mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/ 
mflags-$(CONFIG_X86_VISWS)	:= -Iinclude/asm-x86/mach-visws

mcore-$(CONFIG_X86_VISWS)	:= arch/x86/mach-visws/



# NUMAQ subarch support

mflags-$(CONFIG_X86_NUMAQ)	:= -Iinclude/asm-x86/mach-numaq

mcore-$(CONFIG_X86_NUMAQ)	:= arch/x86/mach-default/



# BIGSMP subarch support

mflags-$(CONFIG_X86_BIGSMP)	:= -Iinclude/asm-x86/mach-bigsmp

mcore-$(CONFIG_X86_BIGSMP)	:= arch/x86/mach-default/



#Summit subarch support

mflags-$(CONFIG_X86_SUMMIT)	:= -Iinclude/asm-x86/mach-summit

mcore-$(CONFIG_X86_SUMMIT)	:= arch/x86/mach-default/



# generic subarchitecture

mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic

fcore-$(CONFIG_X86_GENERICARCH)	+= arch/x86/mach-generic/

mcore-$(CONFIG_X86_GENERICARCH)	:= arch/x86/mach-default/





# ES7000 subarch support

mflags-$(CONFIG_X86_ES7000)	:= -Iinclude/asm-x86/mach-es7000

fcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-es7000/

mcore-$(CONFIG_X86_ES7000)	:= arch/x86/mach-default/



# RDC R-321x subarch support

mflags-$(CONFIG_X86_RDC321X)	:= -Iinclude/asm-x86/mach-rdc321x

mcore-$(CONFIG_X86_RDC321X)	:= arch/x86/mach-default/

arch/x86/boot/compressed/misc.c

+0 −4
Original line number Diff line number Diff line
@@ -221,10 +221,6 @@ static char *vidmem; 
static int vidport;

static int lines, cols;



#ifdef CONFIG_X86_NUMAQ

void *xquad_portio;

#endif



#include "../../../../lib/inflate.c"



static void *malloc(int size)

arch/x86/kernel/acpi/boot.c

+2 −2
Original line number Diff line number Diff line
@@ -848,7 +848,7 @@ static int __init acpi_parse_madt_lapic_entries(void) 
#ifdef	CONFIG_X86_IO_APIC

#define MP_ISA_BUS		0



#if defined(CONFIG_X86_ES7000) || defined(CONFIG_X86_GENERICARCH)

#ifdef CONFIG_X86_ES7000

extern int es7000_plat;

#endif
@@ -997,7 +997,7 @@ void __init mp_config_acpi_legacy_irqs(void) 
	set_bit(MP_ISA_BUS, mp_bus_not_pci);

	Dprintk("Bus #%d is ISA\n", MP_ISA_BUS);



#if defined(CONFIG_X86_ES7000) || defined(CONFIG_X86_GENERICARCH)

#ifdef CONFIG_X86_ES7000

	/*

	 * Older generations of ES7000 have no legacy identity mappings

	 */

arch/x86/kernel/io_apic_32.c

+5 −4
Original line number Diff line number Diff line
@@ -1722,7 +1722,6 @@ void disable_IO_APIC(void) 
 * by Matt Domsch <Matt_Domsch@dell.com>  Tue Dec 21 12:25:05 CST 1999

 */



#ifndef CONFIG_X86_NUMAQ

static void __init setup_ioapic_ids_from_mpc(void)

{

	union IO_APIC_reg_00 reg_00;
@@ -1732,6 +1731,11 @@ static void __init setup_ioapic_ids_from_mpc(void) 
	unsigned char old_id;

	unsigned long flags;



#ifdef CONFIG_X86_NUMAQ

	if (found_numaq)

		return;

#endif



	/*

	 * Don't check I/O APIC IDs for xAPIC systems.  They have

	 * no meaning without the serial APIC bus.
@@ -1828,9 +1832,6 @@ static void __init setup_ioapic_ids_from_mpc(void) 
			apic_printk(APIC_VERBOSE, " ok.\n");

	}

}

#else

static void __init setup_ioapic_ids_from_mpc(void) { }

#endif



int no_timer_check __initdata;