From 7b38725318f4517af6168ccbff99060d67aba1c8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 28 Jan 2009 19:11:44 +0100 Subject: 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 --- arch/x86/Makefile | 5 - arch/x86/kernel/Makefile | 2 +- arch/x86/kernel/probe_32.c | 248 +++++++++++++++++++++++++++++++++++++++++ arch/x86/mach-generic/Makefile | 7 -- arch/x86/mach-generic/probe.c | 156 -------------------------- 5 files changed, 249 insertions(+), 169 deletions(-) create mode 100644 arch/x86/kernel/probe_32.c delete mode 100644 arch/x86/mach-generic/Makefile delete mode 100644 arch/x86/mach-generic/probe.c (limited to 'arch/x86') diff --git a/arch/x86/Makefile b/arch/x86/Makefile index cacee98..799a0d9 100644 --- a/arch/x86/Makefile +++ b/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-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/ - # default subarch .h files mflags-y += -Iarch/x86/include/asm/mach-default diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 4239847..d3f8f49 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -30,7 +30,7 @@ obj-y += traps.o irq.o irq_$(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 diff --git a/arch/x86/kernel/probe_32.c b/arch/x86/kernel/probe_32.c new file mode 100644 index 0000000..a6fba69 --- /dev/null +++ b/arch/x86/kernel/probe_32.c @@ -0,0 +1,248 @@ +/* + * Default generic APIC driver. This handles up to 8 CPUs. + * + * Copyright 2003 Andi Kleen, SuSE Labs. + * Subject to the GNU Public License, v.2 + * + * Generic x86 APIC driver probe layer. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +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; +extern struct genapic apic_es7000; +extern struct genapic apic_default; + +struct genapic *apic = &apic_default; + +static struct genapic *apic_probe[] __initdata = { +#ifdef CONFIG_X86_NUMAQ + &apic_numaq, +#endif +#ifdef CONFIG_X86_SUMMIT + &apic_summit, +#endif +#ifdef CONFIG_X86_BIGSMP + &apic_bigsmp, +#endif +#ifdef CONFIG_X86_ES7000 + &apic_es7000, +#endif + &apic_default, /* must be last */ + NULL, +}; + +static int cmdline_apic __initdata; +static int __init parse_apic(char *arg) +{ + int i; + + if (!arg) + return -EINVAL; + + for (i = 0; apic_probe[i]; i++) { + if (!strcmp(apic_probe[i]->name, arg)) { + apic = apic_probe[i]; + cmdline_apic = 1; + return 0; + } + } + + if (x86_quirks->update_genapic) + x86_quirks->update_genapic(); + + /* Parsed again by __setup for debug/verbose */ + return 0; +} +early_param("apic", parse_apic); + +void __init generic_bigsmp_probe(void) +{ +#ifdef CONFIG_X86_BIGSMP + /* + * This routine is used to switch to bigsmp mode when + * - There is no apic= option specified by the user + * - generic_apic_probe() has chosen apic_default as the sub_arch + * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support + */ + + if (!cmdline_apic && apic == &apic_default) { + if (apic_bigsmp.probe()) { + apic = &apic_bigsmp; + if (x86_quirks->update_genapic) + x86_quirks->update_genapic(); + printk(KERN_INFO "Overriding APIC driver with %s\n", + apic->name); + } + } +#endif +} + +void __init generic_apic_probe(void) +{ + if (!cmdline_apic) { + int i; + for (i = 0; apic_probe[i]; i++) { + if (apic_probe[i]->probe()) { + apic = apic_probe[i]; + break; + } + } + /* Not visible without early console */ + if (!apic_probe[i]) + panic("Didn't find an APIC driver"); + + if (x86_quirks->update_genapic) + x86_quirks->update_genapic(); + } + printk(KERN_INFO "Using APIC driver %s\n", apic->name); +} + +/* These functions can switch the APIC even after the initial ->probe() */ + +int __init +generic_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid) +{ + int i; + + for (i = 0; apic_probe[i]; ++i) { + if (!apic_probe[i]->mps_oem_check) + continue; + if (!apic_probe[i]->mps_oem_check(mpc, oem, productid)) + continue; + + if (!cmdline_apic) { + apic = apic_probe[i]; + if (x86_quirks->update_genapic) + x86_quirks->update_genapic(); + printk(KERN_INFO "Switched to APIC driver `%s'.\n", + apic->name); + } + return 1; + } + return 0; +} + +int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +{ + int i; + + for (i = 0; apic_probe[i]; ++i) { + if (!apic_probe[i]->acpi_madt_oem_check) + continue; + if (!apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) + continue; + + if (!cmdline_apic) { + apic = apic_probe[i]; + if (x86_quirks->update_genapic) + x86_quirks->update_genapic(); + printk(KERN_INFO "Switched to APIC driver `%s'.\n", + apic->name); + } + return 1; + } + return 0; +} diff --git a/arch/x86/mach-generic/Makefile b/arch/x86/mach-generic/Makefile deleted file mode 100644 index 05e4a7c..0000000 --- a/arch/x86/mach-generic/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for the generic architecture -# - -EXTRA_CFLAGS := -Iarch/x86/kernel - -obj-y := probe.o default.o diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c deleted file mode 100644 index c03c722..0000000 --- a/arch/x86/mach-generic/probe.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * Copyright 2003 Andi Kleen, SuSE Labs. - * Subject to the GNU Public License, v.2 - * - * Generic x86 APIC driver probe layer. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -extern struct genapic apic_numaq; -extern struct genapic apic_summit; -extern struct genapic apic_bigsmp; -extern struct genapic apic_es7000; -extern struct genapic apic_default; - -struct genapic *apic = &apic_default; - -static struct genapic *apic_probe[] __initdata = { -#ifdef CONFIG_X86_NUMAQ - &apic_numaq, -#endif -#ifdef CONFIG_X86_SUMMIT - &apic_summit, -#endif -#ifdef CONFIG_X86_BIGSMP - &apic_bigsmp, -#endif -#ifdef CONFIG_X86_ES7000 - &apic_es7000, -#endif - &apic_default, /* must be last */ - NULL, -}; - -static int cmdline_apic __initdata; -static int __init parse_apic(char *arg) -{ - int i; - - if (!arg) - return -EINVAL; - - for (i = 0; apic_probe[i]; i++) { - if (!strcmp(apic_probe[i]->name, arg)) { - apic = apic_probe[i]; - cmdline_apic = 1; - return 0; - } - } - - if (x86_quirks->update_genapic) - x86_quirks->update_genapic(); - - /* Parsed again by __setup for debug/verbose */ - return 0; -} -early_param("apic", parse_apic); - -void __init generic_bigsmp_probe(void) -{ -#ifdef CONFIG_X86_BIGSMP - /* - * This routine is used to switch to bigsmp mode when - * - There is no apic= option specified by the user - * - generic_apic_probe() has chosen apic_default as the sub_arch - * - we find more than 8 CPUs in acpi LAPIC listing with xAPIC support - */ - - if (!cmdline_apic && apic == &apic_default) { - if (apic_bigsmp.probe()) { - apic = &apic_bigsmp; - if (x86_quirks->update_genapic) - x86_quirks->update_genapic(); - printk(KERN_INFO "Overriding APIC driver with %s\n", - apic->name); - } - } -#endif -} - -void __init generic_apic_probe(void) -{ - if (!cmdline_apic) { - int i; - for (i = 0; apic_probe[i]; i++) { - if (apic_probe[i]->probe()) { - apic = apic_probe[i]; - break; - } - } - /* Not visible without early console */ - if (!apic_probe[i]) - panic("Didn't find an APIC driver"); - - if (x86_quirks->update_genapic) - x86_quirks->update_genapic(); - } - printk(KERN_INFO "Using APIC driver %s\n", apic->name); -} - -/* These functions can switch the APIC even after the initial ->probe() */ - -int __init -generic_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid) -{ - int i; - - for (i = 0; apic_probe[i]; ++i) { - if (!apic_probe[i]->mps_oem_check) - continue; - if (!apic_probe[i]->mps_oem_check(mpc, oem, productid)) - continue; - - if (!cmdline_apic) { - apic = apic_probe[i]; - if (x86_quirks->update_genapic) - x86_quirks->update_genapic(); - printk(KERN_INFO "Switched to APIC driver `%s'.\n", - apic->name); - } - return 1; - } - return 0; -} - -int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id) -{ - int i; - - for (i = 0; apic_probe[i]; ++i) { - if (!apic_probe[i]->acpi_madt_oem_check) - continue; - if (!apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) - continue; - - if (!cmdline_apic) { - apic = apic_probe[i]; - if (x86_quirks->update_genapic) - x86_quirks->update_genapic(); - printk(KERN_INFO "Switched to APIC driver `%s'.\n", - apic->name); - } - return 1; - } - return 0; -} -- cgit v1.1