From 03b486322e994dde49e67aedb391867b7cf28822 Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Tue, 20 Jan 2009 04:36:04 +0100 Subject: x86: make UV support configurable Make X86 SGI Ultraviolet support configurable. Saves about 13K of text size on my modest config. text data bss dec hex filename 6770537 1158680 694356 8623573 8395d5 vmlinux 6757492 1157664 694228 8609384 835e68 vmlinux.nouv Signed-off-by: Nick Piggin Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 7 +++++++ arch/x86/include/asm/uv/uv.h | 6 +++--- arch/x86/kernel/Makefile | 5 +++-- arch/x86/kernel/efi.c | 2 ++ arch/x86/kernel/entry_64.S | 2 ++ arch/x86/kernel/genapic_64.c | 2 ++ arch/x86/kernel/io_apic.c | 2 +- 7 files changed, 20 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ef27aed..5a29b79 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -391,6 +391,13 @@ config X86_RDC321X as R-8610-(G). If you don't have one of these chips, you should say N here. +config X86_UV + bool "SGI Ultraviolet" + depends on X86_64 + help + This option is needed in order to support SGI Ultraviolet systems. + If you don't have one of these, you should say N here. + config SCHED_OMIT_FRAME_POINTER def_bool y prompt "Single-depth WCHAN output" diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h index dce5fe3..8ac1d7e 100644 --- a/arch/x86/include/asm/uv/uv.h +++ b/arch/x86/include/asm/uv/uv.h @@ -3,7 +3,7 @@ enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC}; -#ifdef CONFIG_X86_64 +#ifdef CONFIG_X86_UV extern enum uv_system_type get_uv_system_type(void); extern int is_uv_system(void); @@ -15,7 +15,7 @@ extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, unsigned long va, unsigned int cpu); -#else /* X86_64 */ +#else /* X86_UV */ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; } static inline int is_uv_system(void) { return 0; } @@ -28,6 +28,6 @@ uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, unsigned long va, unsigned int cpu) { return cpumask; } -#endif /* X86_64 */ +#endif /* X86_UV */ #endif /* _ASM_X86_UV_UV_H */ diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 0b3272f..a99437c 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -115,10 +115,11 @@ obj-$(CONFIG_SWIOTLB) += pci-swiotlb_64.o # NB rename without _64 ### # 64 bit specific files ifeq ($(CONFIG_X86_64),y) - obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o - obj-y += bios_uv.o uv_irq.o uv_sysfs.o + obj-y += genapic_64.o genapic_flat_64.o obj-y += genx2apic_cluster.o obj-y += genx2apic_phys.o + obj-$(CONFIG_X86_UV) += genx2apic_uv_x.o tlb_uv.o + obj-$(CONFIG_X86_UV) += bios_uv.o uv_irq.o uv_sysfs.o obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o obj-$(CONFIG_AUDIT) += audit_64.o diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 1119d24..b205272 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -366,10 +366,12 @@ void __init efi_init(void) SMBIOS_TABLE_GUID)) { efi.smbios = config_tables[i].table; printk(" SMBIOS=0x%lx ", config_tables[i].table); +#ifdef CONFIG_X86_UV } else if (!efi_guidcmp(config_tables[i].guid, UV_SYSTEM_TABLE_GUID)) { efi.uv_systab = config_tables[i].table; printk(" UVsystab=0x%lx ", config_tables[i].table); +#endif } else if (!efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID)) { efi.hcdp = config_tables[i].table; diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index c52b609..a527038 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -982,8 +982,10 @@ apicinterrupt IRQ_MOVE_CLEANUP_VECTOR \ irq_move_cleanup_interrupt smp_irq_move_cleanup_interrupt #endif +#ifdef CONFIG_X86_UV apicinterrupt UV_BAU_MESSAGE \ uv_bau_message_intr1 uv_bau_message_interrupt +#endif apicinterrupt LOCAL_TIMER_VECTOR \ apic_timer_interrupt smp_apic_timer_interrupt diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c index 2bced78..e656c27 100644 --- a/arch/x86/kernel/genapic_64.c +++ b/arch/x86/kernel/genapic_64.c @@ -32,7 +32,9 @@ extern struct genapic apic_x2apic_cluster; struct genapic __read_mostly *genapic = &apic_flat; static struct genapic *apic_probe[] __initdata = { +#ifdef CONFIG_X86_UV &apic_x2apic_uv_x, +#endif &apic_x2apic_phys, &apic_x2apic_cluster, &apic_physflat, diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c index f796603..e4d36bd 100644 --- a/arch/x86/kernel/io_apic.c +++ b/arch/x86/kernel/io_apic.c @@ -3765,7 +3765,7 @@ int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev) } #endif /* CONFIG_HT_IRQ */ -#ifdef CONFIG_X86_64 +#ifdef CONFIG_X86_UV /* * Re-target the irq to the specified CPU and enable the specified MMR located * on the specified blade to allow the sending of MSIs to the specified CPU. -- cgit v1.1