From 198a071dff9ee61973edf8c58f22ecd5bc4892c8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:14:46 +0200 Subject: x86_64: prepare shared kernel/genapic.c Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86_64/kernel/Makefile | 2 +- arch/x86_64/kernel/genapic.c | 66 ----------------------------------------- arch/x86_64/kernel/genapic_64.c | 66 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 67 insertions(+), 67 deletions(-) delete mode 100644 arch/x86_64/kernel/genapic.c create mode 100644 arch/x86_64/kernel/genapic_64.c (limited to 'arch/x86_64') diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index a6b3ea5805c..edf4c88a98d 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -22,7 +22,7 @@ obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_X86_CPUID) += cpuid.o obj-$(CONFIG_SMP) += smp_64.o smpboot_64.o trampoline.o tsc_sync.o obj-y += apic_64.o nmi_64.o -obj-y += io_apic_64.o mpparse.o genapic.o genapic_flat.o +obj-y += io_apic_64.o mpparse.o genapic_64.o genapic_flat.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel_64.o crash_64.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_PM) += suspend.o diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c deleted file mode 100644 index 47496a40e84..00000000000 --- a/arch/x86_64/kernel/genapic.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright 2004 James Cleverdon, IBM. - * Subject to the GNU Public License, v.2 - * - * Generic APIC sub-arch probe layer. - * - * Hacked for x86-64 by James Cleverdon from i386 architecture code by - * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and - * James Cleverdon. - */ -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#ifdef CONFIG_ACPI -#include -#endif - -/* which logical CPU number maps to which CPU (physical APIC ID) */ -u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly - = { [0 ... NR_CPUS-1] = BAD_APICID }; -EXPORT_SYMBOL(x86_cpu_to_apicid); - -u8 x86_cpu_to_log_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; - -struct genapic __read_mostly *genapic = &apic_flat; - -/* - * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. - */ -void __init setup_apic_routing(void) -{ -#ifdef CONFIG_ACPI - /* - * Quirk: some x86_64 machines can only use physical APIC mode - * regardless of how many processors are present (x86_64 ES7000 - * is an example). - */ - if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID && - (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) - genapic = &apic_physflat; - else -#endif - - if (cpus_weight(cpu_possible_map) <= 8) - genapic = &apic_flat; - else - genapic = &apic_physflat; - - printk(KERN_INFO "Setting APIC routing to %s\n", genapic->name); -} - -/* Same for both flat and physical. */ - -void send_IPI_self(int vector) -{ - __send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL); -} diff --git a/arch/x86_64/kernel/genapic_64.c b/arch/x86_64/kernel/genapic_64.c new file mode 100644 index 00000000000..47496a40e84 --- /dev/null +++ b/arch/x86_64/kernel/genapic_64.c @@ -0,0 +1,66 @@ +/* + * Copyright 2004 James Cleverdon, IBM. + * Subject to the GNU Public License, v.2 + * + * Generic APIC sub-arch probe layer. + * + * Hacked for x86-64 by James Cleverdon from i386 architecture code by + * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and + * James Cleverdon. + */ +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#ifdef CONFIG_ACPI +#include +#endif + +/* which logical CPU number maps to which CPU (physical APIC ID) */ +u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly + = { [0 ... NR_CPUS-1] = BAD_APICID }; +EXPORT_SYMBOL(x86_cpu_to_apicid); + +u8 x86_cpu_to_log_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; + +struct genapic __read_mostly *genapic = &apic_flat; + +/* + * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. + */ +void __init setup_apic_routing(void) +{ +#ifdef CONFIG_ACPI + /* + * Quirk: some x86_64 machines can only use physical APIC mode + * regardless of how many processors are present (x86_64 ES7000 + * is an example). + */ + if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID && + (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) + genapic = &apic_physflat; + else +#endif + + if (cpus_weight(cpu_possible_map) <= 8) + genapic = &apic_flat; + else + genapic = &apic_physflat; + + printk(KERN_INFO "Setting APIC routing to %s\n", genapic->name); +} + +/* Same for both flat and physical. */ + +void send_IPI_self(int vector) +{ + __send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL); +} -- cgit v1.2.3