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authorAndi Kleen <ak@suse.de>2006-09-26 10:52:29 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:29 +0200
commit7f11d8a5efd625ffa41cde1d8472f85e885478ec (patch)
tree4f80219fc2153166c89c54d6555498155fa2f3b2 /arch/x86_64/kernel
parent5ba5891d44a6acade44887a0f3195489d46c12de (diff)
[PATCH] Remove all ifdefs for local/io apic
IO-APIC or local APIC can only be disabled at runtime anyways and Kconfig has forced these options on for a long time now. The Kconfigs are kept only now for the benefit of the shared acpi boot.c code. Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64/kernel')
-rw-r--r--arch/x86_64/kernel/Makefile4
-rw-r--r--arch/x86_64/kernel/apic.c6
-rw-r--r--arch/x86_64/kernel/crash.c2
-rw-r--r--arch/x86_64/kernel/entry.S2
-rw-r--r--arch/x86_64/kernel/head64.c2
-rw-r--r--arch/x86_64/kernel/i8259.c9
-rw-r--r--arch/x86_64/kernel/irq.c6
-rw-r--r--arch/x86_64/kernel/mpparse.c9
-rw-r--r--arch/x86_64/kernel/setup.c6
-rw-r--r--arch/x86_64/kernel/smpboot.c5
-rw-r--r--arch/x86_64/kernel/time.c8
-rw-r--r--arch/x86_64/kernel/traps.c2
12 files changed, 3 insertions, 58 deletions
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile
index b5aaeafc1cd..0ef39553c0f 100644
--- a/arch/x86_64/kernel/Makefile
+++ b/arch/x86_64/kernel/Makefile
@@ -20,8 +20,8 @@ obj-$(CONFIG_X86_MSR) += msr.o
obj-$(CONFIG_MICROCODE) += microcode.o
obj-$(CONFIG_X86_CPUID) += cpuid.o
obj-$(CONFIG_SMP) += smp.o smpboot.o trampoline.o
-obj-$(CONFIG_X86_LOCAL_APIC) += apic.o nmi.o
-obj-$(CONFIG_X86_IO_APIC) += io_apic.o mpparse.o \
+obj-y += apic.o nmi.o
+obj-y += io_apic.o mpparse.o \
genapic.o genapic_cluster.o genapic_flat.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 63d9b037afc..c6ca100a7de 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -661,7 +661,6 @@ void __init init_apic_mappings(void)
*/
boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
-#ifdef CONFIG_X86_IO_APIC
{
unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0;
int i;
@@ -679,7 +678,6 @@ void __init init_apic_mappings(void)
idx++;
}
}
-#endif
}
/*
@@ -1129,12 +1127,10 @@ int __init APIC_init_uniprocessor (void)
setup_local_APIC();
-#ifdef CONFIG_X86_IO_APIC
if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
- setup_IO_APIC();
+ setup_IO_APIC();
else
nr_ioapics = 0;
-#endif
setup_boot_APIC_clock();
check_nmi_watchdog();
return 0;
diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c
index 7d7a9e75f70..3525f884af8 100644
--- a/arch/x86_64/kernel/crash.c
+++ b/arch/x86_64/kernel/crash.c
@@ -194,9 +194,7 @@ void machine_crash_shutdown(struct pt_regs *regs)
if(cpu_has_apic)
disable_local_APIC();
-#if defined(CONFIG_X86_IO_APIC)
disable_IO_APIC();
-#endif
crash_save_self(regs);
}
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 2dc5c01f754..a0cf36ba7c5 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -676,7 +676,6 @@ ENTRY(call_function_interrupt)
END(call_function_interrupt)
#endif
-#ifdef CONFIG_X86_LOCAL_APIC
ENTRY(apic_timer_interrupt)
apicinterrupt LOCAL_TIMER_VECTOR,smp_apic_timer_interrupt
END(apic_timer_interrupt)
@@ -688,7 +687,6 @@ END(error_interrupt)
ENTRY(spurious_interrupt)
apicinterrupt SPURIOUS_APIC_VECTOR,smp_spurious_interrupt
END(spurious_interrupt)
-#endif
/*
* Exception entry points.
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c
index 36647ce6aec..bacbd75c63a 100644
--- a/arch/x86_64/kernel/head64.c
+++ b/arch/x86_64/kernel/head64.c
@@ -111,10 +111,8 @@ void __init x86_64_start_kernel(char * real_mode_data)
if (s != NULL)
numa_setup(s+5);
#endif
-#ifdef CONFIG_X86_IO_APIC
if (strstr(saved_command_line, "disableapic"))
disable_apic = 1;
-#endif
/* You need early console to see that */
if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE)
panic("Kernel too big for kernel mapping\n");
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c
index 0434b1f8e3d..d2f5acde574 100644
--- a/arch/x86_64/kernel/i8259.c
+++ b/arch/x86_64/kernel/i8259.c
@@ -55,7 +55,6 @@
*/
BUILD_16_IRQS(0x0)
-#ifdef CONFIG_X86_LOCAL_APIC
/*
* The IO-APIC gives us many more interrupt sources. Most of these
* are unused but an SMP system is supposed to have enough memory ...
@@ -75,8 +74,6 @@ BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd)
BUILD_15_IRQS(0xe)
#endif
-#endif
-
#undef BUILD_16_IRQS
#undef BUILD_15_IRQS
#undef BI
@@ -100,7 +97,6 @@ BUILD_16_IRQS(0xc) BUILD_16_IRQS(0xd)
void (*interrupt[NR_IRQS])(void) = {
IRQLIST_16(0x0),
-#ifdef CONFIG_X86_IO_APIC
IRQLIST_16(0x1), IRQLIST_16(0x2), IRQLIST_16(0x3),
IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7),
IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb),
@@ -110,7 +106,6 @@ void (*interrupt[NR_IRQS])(void) = {
, IRQLIST_15(0xe)
#endif
-#endif
};
#undef IRQ
@@ -453,9 +448,7 @@ void __init init_ISA_irqs (void)
{
int i;
-#ifdef CONFIG_X86_LOCAL_APIC
init_bsp_APIC();
-#endif
init_8259A(0);
for (i = 0; i < NR_IRQS; i++) {
@@ -581,14 +574,12 @@ void __init init_IRQ(void)
set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
set_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
-#ifdef CONFIG_X86_LOCAL_APIC
/* self generated IPI for local APIC timer */
set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
/* IPI vectors for APIC spurious and error interrupts */
set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
set_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
-#endif
/*
* Set the clock to HZ Hz, we already have a valid
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index 5221a53e90c..bfbcf92cfa4 100644
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -20,11 +20,9 @@
#include <asm/idle.h>
atomic_t irq_err_count;
-#ifdef CONFIG_X86_IO_APIC
#ifdef APIC_MISMATCH_DEBUG
atomic_t irq_mis_count;
#endif
-#endif
#ifdef CONFIG_DEBUG_STACKOVERFLOW
/*
@@ -92,18 +90,14 @@ skip:
for_each_online_cpu(j)
seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count);
seq_putc(p, '\n');
-#ifdef CONFIG_X86_LOCAL_APIC
seq_printf(p, "LOC: ");
for_each_online_cpu(j)
seq_printf(p, "%10u ", cpu_pda(j)->apic_timer_irqs);
seq_putc(p, '\n');
-#endif
seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
-#ifdef CONFIG_X86_IO_APIC
#ifdef APIC_MISMATCH_DEBUG
seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count));
#endif
-#endif
}
return 0;
}
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index a1ab4197f8a..c73dd1f41e6 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -74,14 +74,10 @@ physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
/* ACPI MADT entry parsing functions */
#ifdef CONFIG_ACPI
extern struct acpi_boot_flags acpi_boot;
-#ifdef CONFIG_X86_LOCAL_APIC
extern int acpi_parse_lapic (acpi_table_entry_header *header);
extern int acpi_parse_lapic_addr_ovr (acpi_table_entry_header *header);
extern int acpi_parse_lapic_nmi (acpi_table_entry_header *header);
-#endif /*CONFIG_X86_LOCAL_APIC*/
-#ifdef CONFIG_X86_IO_APIC
extern int acpi_parse_ioapic (acpi_table_entry_header *header);
-#endif /*CONFIG_X86_IO_APIC*/
#endif /*CONFIG_ACPI*/
u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
@@ -661,9 +657,7 @@ void __init find_intel_smp (void)
*/
void __init find_smp_config (void)
{
-#ifdef CONFIG_X86_LOCAL_APIC
find_intel_smp();
-#endif
}
@@ -717,8 +711,6 @@ void __cpuinit mp_register_lapic (
MP_processor_info(&processor);
}
-#ifdef CONFIG_X86_IO_APIC
-
#define MP_ISA_BUS 0
#define MP_MAX_IOAPIC_PIN 127
@@ -997,5 +989,4 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity)
return gsi;
}
-#endif /*CONFIG_X86_IO_APIC*/
#endif /*CONFIG_ACPI*/
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 34afad70482..fbe9f7faa2d 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -340,11 +340,9 @@ static __init void parse_cmdline_early (char ** cmdline_p)
else if (fullarg(from, "acpi=strict")) {
acpi_strict = 1;
}
-#ifdef CONFIG_X86_IO_APIC
else if (fullarg(from, "acpi_skip_timer_override"))
acpi_skip_timer_override = 1;
#endif
-#endif
if (fullarg(from, "disable_timer_pin_1"))
disable_timer_pin_1 = 1;
@@ -625,12 +623,10 @@ void __init setup_arch(char **cmdline_p)
*/
acpi_reserve_bootmem();
#endif
-#ifdef CONFIG_X86_LOCAL_APIC
/*
* Find and reserve possible boot-time SMP configuration:
*/
find_smp_config();
-#endif
#ifdef CONFIG_BLK_DEV_INITRD
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
@@ -674,14 +670,12 @@ void __init setup_arch(char **cmdline_p)
init_cpu_to_node();
-#ifdef CONFIG_X86_LOCAL_APIC
/*
* get boot-time SMP configuration:
*/
if (smp_found_config)
get_smp_config();
init_apic_mappings();
-#endif
/*
* Request address space for all standard RAM and ROM resources
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index 582896f7d42..d29571e2495 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -1175,13 +1175,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
void __init smp_cpus_done(unsigned int max_cpus)
{
smp_cleanup_boot();
-
-#ifdef CONFIG_X86_IO_APIC
setup_ioapic_dest();
-#endif
-
check_nmi_watchdog();
-
time_init_gtod();
}
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index ea00915d393..d66c7f750e7 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -41,9 +41,7 @@
#include <asm/sections.h>
#include <linux/cpufreq.h>
#include <linux/hpet.h>
-#ifdef CONFIG_X86_LOCAL_APIC
#include <asm/apic.h>
-#endif
#ifdef CONFIG_CPU_FREQ
static void cpufreq_delayed_get(void);
@@ -438,12 +436,8 @@ void main_timer_handler(struct pt_regs *regs)
* have to call the local interrupt handler.
*/
-#ifndef CONFIG_X86_LOCAL_APIC
- profile_tick(CPU_PROFILING, regs);
-#else
if (!using_apic_timer)
smp_local_timer_interrupt(regs);
-#endif
/*
* If we have an externally synchronized Linux clock, then update CMOS clock
@@ -467,10 +461,8 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
if (apic_runs_main_timer > 1)
return IRQ_HANDLED;
main_timer_handler(regs);
-#ifdef CONFIG_X86_LOCAL_APIC
if (using_apic_timer)
smp_send_timer_broadcast_ipi();
-#endif
return IRQ_HANDLED;
}
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 96f62a03324..56d7ff0c894 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -788,7 +788,6 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs)
if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT)
== NOTIFY_STOP)
return;
-#ifdef CONFIG_X86_LOCAL_APIC
/*
* Ok, so this is none of the documented NMI sources,
* so it must be the NMI watchdog.
@@ -796,7 +795,6 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs)
if (nmi_watchdog_tick(regs,reason))
return;
if (!do_nmi_callback(regs,cpu))
-#endif
unknown_nmi_error(reason, regs);
return;