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authorPaul Mackerras <paulus@samba.org>2006-02-28 16:35:24 +1100
committerPaul Mackerras <paulus@samba.org>2006-02-28 16:35:24 +1100
commit6749c5507388f3fc3719f57a54b540ee83f6661a (patch)
treec069f990f86b020a14b50759d0c75475eedde186 /arch
parent2cf82c0256b198ae28c465f2c4d7c12c836ea5ea (diff)
parent56ec6462af9cba56a04439154e5768672d6f390f (diff)
Merge ../powerpc-merge
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-at91rm9200/gpio.c14
-rw-r--r--arch/i386/Kconfig3
-rw-r--r--arch/i386/kernel/Makefile2
-rw-r--r--arch/i386/kernel/cpu/common.c32
-rw-r--r--arch/i386/kernel/efi.c12
-rw-r--r--arch/i386/kernel/head.S2
-rw-r--r--arch/i386/kernel/i386_ksyms.c2
-rw-r--r--arch/i386/kernel/io_apic.c6
-rw-r--r--arch/i386/kernel/kprobes.c16
-rw-r--r--arch/i386/kernel/mpparse.c10
-rw-r--r--arch/i386/kernel/smpboot.c6
-rw-r--r--arch/i386/kernel/topology.c (renamed from arch/i386/mach-default/topology.c)6
-rw-r--r--arch/i386/mach-default/Makefile2
-rw-r--r--arch/i386/mach-voyager/voyager_basic.c3
-rw-r--r--arch/i386/mach-voyager/voyager_smp.c1
-rw-r--r--arch/ia64/Kconfig1
-rw-r--r--arch/m32r/Makefile6
-rw-r--r--arch/m32r/kernel/signal.c24
-rw-r--r--arch/m32r/lib/usercopy.c4
-rw-r--r--arch/mips/kernel/linux32.c54
-rw-r--r--arch/mips/kernel/scall32-o32.S2
-rw-r--r--arch/mips/kernel/scall64-n32.S2
-rw-r--r--arch/mips/kernel/scall64-o32.S4
-rw-r--r--arch/mips/kernel/setup.c3
-rw-r--r--arch/mips/kernel/smp.c2
-rw-r--r--arch/mips/kernel/smp_mt.c13
-rw-r--r--arch/mips/pmc-sierra/yosemite/smp.c24
-rw-r--r--arch/mips/sgi-ip27/ip27-smp.c7
-rw-r--r--arch/mips/sibyte/cfe/smp.c10
-rw-r--r--arch/powerpc/Kconfig2
-rw-r--r--arch/powerpc/kernel/prom.c54
-rw-r--r--arch/powerpc/kernel/vdso64/gettimeofday.S4
-rw-r--r--arch/powerpc/mm/hash_utils_64.c2
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c14
-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c2
-rw-r--r--arch/powerpc/platforms/pseries/pci_dlpar.c36
-rw-r--r--arch/s390/kernel/compat_wrapper.S1
-rw-r--r--arch/sparc64/Kconfig1
-rw-r--r--arch/sparc64/kernel/setup.c2
-rw-r--r--arch/sparc64/kernel/smp.c28
-rw-r--r--arch/um/drivers/cow.h2
-rw-r--r--arch/um/drivers/cow_sys.h6
-rw-r--r--arch/um/drivers/cow_user.c24
-rw-r--r--arch/um/drivers/net_user.c34
-rw-r--r--arch/um/drivers/ubd_kern.c2
-rw-r--r--arch/um/include/init.h2
-rw-r--r--arch/um/include/os.h3
-rw-r--r--arch/um/os-Linux/file.c19
-rw-r--r--arch/um/os-Linux/process.c16
-rw-r--r--arch/um/sys-i386/ldt.c9
-rw-r--r--arch/x86_64/Kconfig16
-rw-r--r--arch/x86_64/kernel/Makefile2
-rw-r--r--arch/x86_64/kernel/aperture.c2
-rw-r--r--arch/x86_64/kernel/io_apic.c48
-rw-r--r--arch/x86_64/kernel/pci-gart.c22
-rw-r--r--arch/x86_64/kernel/setup.c6
-rw-r--r--arch/x86_64/kernel/smpboot.c4
-rw-r--r--arch/x86_64/kernel/time.c22
58 files changed, 367 insertions, 291 deletions
diff --git a/arch/arm/mach-at91rm9200/gpio.c b/arch/arm/mach-at91rm9200/gpio.c
index a9f718bf8ba..0e396feec46 100644
--- a/arch/arm/mach-at91rm9200/gpio.c
+++ b/arch/arm/mach-at91rm9200/gpio.c
@@ -274,8 +274,18 @@ static void gpio_irq_handler(unsigned irq, struct irqdesc *desc, struct pt_regs
gpio = &irq_desc[pin];
while (isr) {
- if (isr & 1)
- gpio->handle(pin, gpio, regs);
+ if (isr & 1) {
+ if (unlikely(gpio->disable_depth)) {
+ /*
+ * The core ARM interrupt handler lazily disables IRQs so
+ * another IRQ must be generated before it actually gets
+ * here to be disabled on the GPIO controller.
+ */
+ gpio_irq_mask(pin);
+ }
+ else
+ gpio->handle(pin, gpio, regs);
+ }
pin++;
gpio++;
isr >>= 1;
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 0afec8566e7..5b1a7d46d1d 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -733,7 +733,7 @@ config PHYSICAL_START
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
- depends on SMP && HOTPLUG && EXPERIMENTAL
+ depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
---help---
Say Y here to experiment with turning CPUs off and on. CPUs
can be controlled through /sys/devices/system/cpu.
@@ -1060,6 +1060,7 @@ source "arch/i386/oprofile/Kconfig"
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 60c3f76dfca..53bb9a79e27 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \
- quirks.o i8237.o
+ quirks.o i8237.o topology.o
obj-y += cpu/
obj-y += timers/
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 7eb9213734a..4ecd4b326de 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -4,6 +4,7 @@
#include <linux/smp.h>
#include <linux/module.h>
#include <linux/percpu.h>
+#include <linux/bootmem.h>
#include <asm/semaphore.h>
#include <asm/processor.h>
#include <asm/i387.h>
@@ -18,6 +19,9 @@
#include "cpu.h"
+DEFINE_PER_CPU(struct Xgt_desc_struct, cpu_gdt_descr);
+EXPORT_PER_CPU_SYMBOL(cpu_gdt_descr);
+
DEFINE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
EXPORT_PER_CPU_SYMBOL(cpu_16bit_stack);
@@ -571,8 +575,9 @@ void __devinit cpu_init(void)
int cpu = smp_processor_id();
struct tss_struct * t = &per_cpu(init_tss, cpu);
struct thread_struct *thread = &current->thread;
- struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+ struct desc_struct *gdt;
__u32 stk16_off = (__u32)&per_cpu(cpu_16bit_stack, cpu);
+ struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu);
if (cpu_test_and_set(cpu, cpu_initialized)) {
printk(KERN_WARNING "CPU#%d already initialized!\n", cpu);
@@ -590,6 +595,25 @@ void __devinit cpu_init(void)
}
/*
+ * This is a horrible hack to allocate the GDT. The problem
+ * is that cpu_init() is called really early for the boot CPU
+ * (and hence needs bootmem) but much later for the secondary
+ * CPUs, when bootmem will have gone away
+ */
+ if (NODE_DATA(0)->bdata->node_bootmem_map) {
+ gdt = (struct desc_struct *)alloc_bootmem_pages(PAGE_SIZE);
+ /* alloc_bootmem_pages panics on failure, so no check */
+ memset(gdt, 0, PAGE_SIZE);
+ } else {
+ gdt = (struct desc_struct *)get_zeroed_page(GFP_KERNEL);
+ if (unlikely(!gdt)) {
+ printk(KERN_CRIT "CPU%d failed to allocate GDT\n", cpu);
+ for (;;)
+ local_irq_enable();
+ }
+ }
+
+ /*
* Initialize the per-CPU GDT with the boot GDT,
* and set up the GDT descriptor:
*/
@@ -601,10 +625,10 @@ void __devinit cpu_init(void)
((((__u64)stk16_off) << 32) & 0xff00000000000000ULL) |
(CPU_16BIT_STACK_SIZE - 1);
- cpu_gdt_descr[cpu].size = GDT_SIZE - 1;
- cpu_gdt_descr[cpu].address = (unsigned long)gdt;
+ cpu_gdt_descr->size = GDT_SIZE - 1;
+ cpu_gdt_descr->address = (unsigned long)gdt;
- load_gdt(&cpu_gdt_descr[cpu]);
+ load_gdt(cpu_gdt_descr);
load_idt(&idt_descr);
/*
diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c
index ecad519fd39..e3e42fd6240 100644
--- a/arch/i386/kernel/efi.c
+++ b/arch/i386/kernel/efi.c
@@ -103,17 +103,19 @@ static void efi_call_phys_prelog(void)
*/
local_flush_tlb();
- cpu_gdt_descr[0].address = __pa(cpu_gdt_descr[0].address);
- load_gdt((struct Xgt_desc_struct *) __pa(&cpu_gdt_descr[0]));
+ per_cpu(cpu_gdt_descr, 0).address =
+ __pa(per_cpu(cpu_gdt_descr, 0).address);
+ load_gdt((struct Xgt_desc_struct *)__pa(&per_cpu(cpu_gdt_descr, 0)));
}
static void efi_call_phys_epilog(void)
{
unsigned long cr4;
- cpu_gdt_descr[0].address =
- (unsigned long) __va(cpu_gdt_descr[0].address);
- load_gdt(&cpu_gdt_descr[0]);
+ per_cpu(cpu_gdt_descr, 0).address =
+ (unsigned long)__va(per_cpu(cpu_gdt_descr, 0).address);
+ load_gdt((struct Xgt_desc_struct *)__va(&per_cpu(cpu_gdt_descr, 0)));
+
cr4 = read_cr4();
if (cr4 & X86_CR4_PSE) {
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index 2bee6499edd..e0b7c632efb 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -534,5 +534,3 @@ ENTRY(cpu_gdt_table)
.quad 0x0000000000000000 /* 0xf0 - unused */
.quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
- /* Be sure this is zeroed to avoid false validations in Xen */
- .fill PAGE_SIZE_asm / 8 - GDT_ENTRIES,8,0
diff --git a/arch/i386/kernel/i386_ksyms.c b/arch/i386/kernel/i386_ksyms.c
index 3999bec50c3..055325056a7 100644
--- a/arch/i386/kernel/i386_ksyms.c
+++ b/arch/i386/kernel/i386_ksyms.c
@@ -3,8 +3,6 @@
#include <asm/checksum.h>
#include <asm/desc.h>
-EXPORT_SYMBOL_GPL(cpu_gdt_descr);
-
EXPORT_SYMBOL(__down_failed);
EXPORT_SYMBOL(__down_failed_interruptible);
EXPORT_SYMBOL(__down_failed_trylock);
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index f2dd218d88c..235822b3f41 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -2566,8 +2566,10 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id)
spin_unlock_irqrestore(&ioapic_lock, flags);
/* Sanity check */
- if (reg_00.bits.ID != apic_id)
- panic("IOAPIC[%d]: Unable change apic_id!\n", ioapic);
+ if (reg_00.bits.ID != apic_id) {
+ printk("IOAPIC[%d]: Unable to change apic_id!\n", ioapic);
+ return -1;
+ }
}
apic_printk(APIC_VERBOSE, KERN_INFO
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index 6483eeb1a4e..694a1399763 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -58,6 +58,11 @@ static inline int is_IF_modifier(kprobe_opcode_t opcode)
int __kprobes arch_prepare_kprobe(struct kprobe *p)
{
+ /* insn: must be on special executable page on i386. */
+ p->ainsn.insn = get_insn_slot();
+ if (!p->ainsn.insn)
+ return -ENOMEM;
+
memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
p->opcode = *p->addr;
return 0;
@@ -77,6 +82,13 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
(unsigned long) p->addr + sizeof(kprobe_opcode_t));
}
+void __kprobes arch_remove_kprobe(struct kprobe *p)
+{
+ down(&kprobe_mutex);
+ free_insn_slot(p->ainsn.insn);
+ up(&kprobe_mutex);
+}
+
static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)
{
kcb->prev_kprobe.kp = kprobe_running();
@@ -111,7 +123,7 @@ static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
if (p->opcode == BREAKPOINT_INSTRUCTION)
regs->eip = (unsigned long)p->addr;
else
- regs->eip = (unsigned long)&p->ainsn.insn;
+ regs->eip = (unsigned long)p->ainsn.insn;
}
/* Called with kretprobe_lock held */
@@ -351,7 +363,7 @@ static void __kprobes resume_execution(struct kprobe *p,
{
unsigned long *tos = (unsigned long *)&regs->esp;
unsigned long next_eip = 0;
- unsigned long copy_eip = (unsigned long)&p->ainsn.insn;
+ unsigned long copy_eip = (unsigned long)p->ainsn.insn;
unsigned long orig_eip = (unsigned long)p->addr;
switch (p->ainsn.insn[0]) {
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index e7609abf379..e6e2f43db85 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -915,6 +915,7 @@ void __init mp_register_ioapic (
u32 gsi_base)
{
int idx = 0;
+ int tmpid;
if (nr_ioapics >= MAX_IO_APICS) {
printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
@@ -935,9 +936,14 @@ void __init mp_register_ioapic (
set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 < 15))
- mp_ioapics[idx].mpc_apicid = io_apic_get_unique_id(idx, id);
+ tmpid = io_apic_get_unique_id(idx, id);
else
- mp_ioapics[idx].mpc_apicid = id;
+ tmpid = id;
+ if (tmpid == -1) {
+ nr_ioapics--;
+ return;
+ }
+ mp_ioapics[idx].mpc_apicid = tmpid;
mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx);
/*
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index fb00ab7b761..eba7f53f8b4 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -898,12 +898,6 @@ static int __devinit do_boot_cpu(int apicid, int cpu)
unsigned long start_eip;
unsigned short nmi_high = 0, nmi_low = 0;
- if (!cpu_gdt_descr[cpu].address &&
- !(cpu_gdt_descr[cpu].address = get_zeroed_page(GFP_KERNEL))) {
- printk("Failed to allocate GDT for CPU %d\n", cpu);
- return 1;
- }
-
++cpucount;
/*
diff --git a/arch/i386/mach-default/topology.c b/arch/i386/kernel/topology.c
index b64314069e7..67a0e1baa28 100644
--- a/arch/i386/mach-default/topology.c
+++ b/arch/i386/kernel/topology.c
@@ -1,12 +1,12 @@
/*
- * arch/i386/mach-generic/topology.c - Populate driverfs with topology information
+ * arch/i386/kernel/topology.c - Populate driverfs with topology information
*
* Written by: Matthew Dobson, IBM Corporation
* Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL
*
* Copyright (C) 2002, IBM Corp.
*
- * All rights reserved.
+ * All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -34,7 +34,7 @@ static struct i386_cpu cpu_devices[NR_CPUS];
int arch_register_cpu(int num){
struct node *parent = NULL;
-
+
#ifdef CONFIG_NUMA
int node = cpu_to_node(num);
if (node_online(node))
diff --git a/arch/i386/mach-default/Makefile b/arch/i386/mach-default/Makefile
index e95bb023792..012fe34459e 100644
--- a/arch/i386/mach-default/Makefile
+++ b/arch/i386/mach-default/Makefile
@@ -2,4 +2,4 @@
# Makefile for the linux kernel.
#
-obj-y := setup.o topology.o
+obj-y := setup.o
diff --git a/arch/i386/mach-voyager/voyager_basic.c b/arch/i386/mach-voyager/voyager_basic.c
index aa49a33a572..b584060ec00 100644
--- a/arch/i386/mach-voyager/voyager_basic.c
+++ b/arch/i386/mach-voyager/voyager_basic.c
@@ -23,6 +23,8 @@
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/sysrq.h>
+#include <linux/smp.h>
+#include <linux/nodemask.h>
#include <asm/io.h>
#include <asm/voyager.h>
#include <asm/vic.h>
@@ -328,4 +330,3 @@ void machine_power_off(void)
if (pm_power_off)
pm_power_off();
}
-
diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c
index 6e4c3baef6c..8165626a5c3 100644
--- a/arch/i386/mach-voyager/voyager_smp.c
+++ b/arch/i386/mach-voyager/voyager_smp.c
@@ -402,6 +402,7 @@ find_smp_config(void)
cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 1) << 8;
cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 2) << 16;
cpus_addr(phys_cpu_present_map)[0] |= voyager_extended_cmos_read(VOYAGER_PROCESSOR_PRESENT_MASK + 3) << 24;
+ cpu_possible_map = phys_cpu_present_map;
printk("VOYAGER SMP: phys_cpu_present_map = 0x%lx\n", cpus_addr(phys_cpu_present_map)[0]);
/* Here we set up the VIC to enable SMP */
/* enable the CPIs by writing the base vector to their register */
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 845cd0902a5..a85ea9d37f0 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -453,6 +453,7 @@ source "arch/ia64/oprofile/Kconfig"
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index 983d438b14b..4b3c90ba926 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -12,14 +12,14 @@ CFLAGS_MODULE += -mmodel=large
ifdef CONFIG_CHIP_VDEC2
cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst
-aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst
+aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -O2 -Wa,-bitinst -Wa,-no-parallel
else
cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2
-aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2
+aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2 -O2
endif
cflags-$(CONFIG_ISA_M32R) += -DNO_FPU
-aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -Wa,-no-bitinst
+aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -O2 -Wa,-no-bitinst
CFLAGS += $(cflags-y)
AFLAGS += $(aflags-y)
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 71763f7a1d1..cb33097fefc 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -36,7 +36,7 @@ int do_signal(struct pt_regs *, sigset_t *);
asmlinkage int
sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
unsigned long r2, unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, struct pt_regs regs)
+ unsigned long r5, unsigned long r6, struct pt_regs *regs)
{
sigset_t saveset, newset;
@@ -54,21 +54,21 @@ sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
- regs.r0 = -EINTR;
+ regs->r0 = -EINTR;
while (1) {
current->state = TASK_INTERRUPTIBLE;
schedule();
- if (do_signal(&regs, &saveset))
- return regs.r0;
+ if (do_signal(regs, &saveset))
+ return regs->r0;
}
}
asmlinkage int
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
unsigned long r2, unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, struct pt_regs regs)
+ unsigned long r5, unsigned long r6, struct pt_regs *regs)
{
- return do_sigaltstack(uss, uoss, regs.spu);
+ return do_sigaltstack(uss, uoss, regs->spu);
}
@@ -140,11 +140,10 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
asmlinkage int
sys_rt_sigreturn(unsigned long r0, unsigned long r1,
unsigned long r2, unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, struct pt_regs regs)
+ unsigned long r5, unsigned long r6, struct pt_regs *regs)
{
- struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs.spu;
+ struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs->spu;
sigset_t set;
- stack_t st;
int result;
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -158,14 +157,11 @@ sys_rt_sigreturn(unsigned long r0, unsigned long r1,
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
- if (restore_sigcontext(&regs, &frame->uc.uc_mcontext, &result))
+ if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &result))
goto badframe;
- if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
+ if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->spu) == -EFAULT)
goto badframe;
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- do_sigaltstack(&st, NULL, regs.spu);
return result;
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
index ce16bbe26a5..2d1dd2106c4 100644
--- a/arch/m32r/lib/usercopy.c
+++ b/arch/m32r/lib/usercopy.c
@@ -64,7 +64,7 @@ do { \
" .balign 4\n" \
" .long 0b,3b\n" \
".previous" \
- : "=r"(res), "=r"(count), "=&r" (__d0), "=&r" (__d1), \
+ : "=&r"(res), "=&r"(count), "=&r" (__d0), "=&r" (__d1), \
"=&r" (__d2) \
: "i"(-EFAULT), "0"(count), "1"(count), "3"(src), \
"4"(dst) \
@@ -101,7 +101,7 @@ do { \
" .balign 4\n" \
" .long 0b,3b\n" \
".previous" \
- : "=r"(res), "=r"(count), "=&r" (__d0), "=&r" (__d1), \
+ : "=&r"(res), "=&r"(count), "=&r" (__d0), "=&r" (__d1), \
"=&r" (__d2) \
: "i"(-EFAULT), "0"(count), "1"(count), "3"(src), \
"4"(dst) \
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 5f68b220c26..e00e5f6e7fd 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -161,60 +161,6 @@ out:
return error;
}
-struct dirent32 {
- unsigned int d_ino;
- unsigned int d_off;
- unsigned short d_reclen;
- char d_name[NAME_MAX + 1];
-};
-
-static void
-xlate_dirent(void *dirent64, void *dirent32, long n)
-{
- long off;
- struct dirent *dirp;
- struct dirent32 *dirp32;
-
- off = 0;
- while (off < n) {
- dirp = (struct dirent *)(dirent64 + off);
- dirp32 = (struct dirent32 *)(dirent32 + off);
- off += dirp->d_reclen;
- dirp32->d_ino = dirp->d_ino;
- dirp32->d_off = (unsigned int)dirp->d_off;
- dirp32->d_reclen = dirp->d_reclen;
- strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2));
- }
- return;
-}
-
-asmlinkage long
-sys32_getdents(unsigned int fd, void * dirent32, unsigned int count)
-{
- long n;
- void *dirent64;
-
- dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1));
- if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0)
- return(n);
- xlate_dirent(dirent64, dirent32, n);
- return(n);
-}
-
-asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count);
-
-asmlinkage int
-sys32_readdir(unsigned int fd, void * dirent32, unsigned int count)
-{
- int n;
- struct dirent dirent64;
-
- if ((n = old_readdir(fd, &dirent64, count)) < 0)
- return(n);
- xlate_dirent(&dirent64, dirent32, dirent64.d_reclen);
- return(n);
-}
-
asmlinkage int
sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
{
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index d83e033dbc8..2f2dc54b2e2 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -626,7 +626,7 @@ einval: li v0, -EINVAL
sys sys_fstatat64 4
sys sys_unlinkat 3
sys sys_renameat 4 /* 4295 */
- sys sys_linkat 4
+ sys sys_linkat 5
sys sys_symlinkat 3
sys sys_readlinkat 4
sys sys_fchmodat 3
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index d87b5446fa1..02c8267e45e 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -195,7 +195,7 @@ EXPORT(sysn32_call_table)
PTR sys_fdatasync
PTR sys_truncate
PTR sys_ftruncate /* 6075 */
- PTR sys32_getdents
+ PTR compat_sys_getdents
PTR sys_getcwd
PTR sys_chdir
PTR sys_fchdir
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 5b0414018c9..797e0d87488 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -293,7 +293,7 @@ sys_call_table:
PTR sys_uselib
PTR sys_swapon
PTR sys_reboot
- PTR sys32_readdir
+ PTR compat_sys_old_readdir
PTR old_mmap /* 4090 */
PTR sys_munmap
PTR sys_truncate
@@ -345,7 +345,7 @@ sys_call_table:
PTR sys_setfsuid
PTR sys_setfsgid
PTR sys32_llseek /* 4140 */
- PTR sys32_getdents
+ PTR compat_sys_getdents
PTR compat_sys_select
PTR sys_flock
PTR sys_msync
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index d86affa2127..d9293c558e4 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -540,6 +540,9 @@ void __init setup_arch(char **cmdline_p)
sparse_init();
paging_init();
resource_init();
+#ifdef CONFIG_SMP
+ plat_smp_setup();
+#endif
}
int __init fpu_disable(char *s)
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 5e189862e52..06ed9075242 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -236,7 +236,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
init_new_context(current, &init_mm);
current_thread_info()->cpu = 0;
smp_tune_scheduling();
- prom_prepare_cpus(max_cpus);
+ plat_prepare_cpus(max_cpus);
}
/* preload SMP state for boot cpu */
diff --git a/arch/mips/kernel/smp_mt.c b/arch/mips/kernel/smp_mt.c
index c930364830d..993b8bf56aa 100644
--- a/arch/mips/kernel/smp_mt.c
+++ b/arch/mips/kernel/smp_mt.c
@@ -143,7 +143,7 @@ static struct irqaction irq_call = {
* Make sure all CPU's are in a sensible state before we boot any of the
* secondarys
*/
-void prom_prepare_cpus(unsigned int max_cpus)
+void plat_smp_setup(void)
{
unsigned long val;
int i, num;
@@ -179,11 +179,9 @@ void prom_prepare_cpus(unsigned int max_cpus)
write_vpe_c0_vpeconf0(tmp);
/* Record this as available CPU */
- if (i < max_cpus) {
- cpu_set(i, phys_cpu_present_map);
- __cpu_number_map[i] = ++num;
- __cpu_logical_map[num] = i;
- }
+ cpu_set(i, phys_cpu_present_map);
+ __cpu_number_map[i] = ++num;
+ __cpu_logical_map[num] = i;
}
/* disable multi-threading with TC's */
@@ -241,7 +239,10 @@ void prom_prepare_cpus(unsigned int max_cpus)
set_vi_handler (MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
set_vi_handler (MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
}
+}
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
cpu_ipi_resched_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
cpu_ipi_call_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ;
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index 7f8fda96219..c197311e15d 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -50,37 +50,25 @@ void __init prom_grab_secondary(void)
* We don't want to start the secondary CPU yet nor do we have a nice probing
* feature in PMON so we just assume presence of the secondary core.
*/
-static char maxcpus_string[] __initdata =
- KERN_WARNING "max_cpus set to 0; using 1 instead\n";
-
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
{
- int enabled = 0, i;
-
- if (max_cpus == 0) {
- printk(maxcpus_string);
- max_cpus = 1;
- }
+ int i;
cpus_clear(phys_cpu_present_map);
for (i = 0; i < 2; i++) {
- if (i == max_cpus)
- break;
-
- /*
- * The boot CPU
- */
cpu_set(i, phys_cpu_present_map);
__cpu_number_map[i] = i;
__cpu_logical_map[i] = i;
- enabled++;
}
+}
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
/*
* Be paranoid. Enable the IPI only if we're really about to go SMP.
*/
- if (enabled > 1)
+ if (cpus_weight(cpu_possible_map))
set_c0_status(STATUSF_IP5);
}
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index dbef3f6b565..09fa7f5216f 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -140,7 +140,7 @@ static __init void intr_clear_all(nasid_t nasid)
REMOTE_HUB_CLR_INTR(nasid, i);
}
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
{
cnodeid_t cnode;
@@ -161,6 +161,11 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
alloc_cpupda(0, 0);
}
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
+ /* We already did everything necessary earlier */
+}
+
/*
* Launch a slave into smp_bootstrap(). It doesn't take an argument, and we
* set sp to the kernel stack of the newly created idle process, gp to the proc
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
index 4477af3d807..eab20e2db32 100644
--- a/arch/mips/sibyte/cfe/smp.c
+++ b/arch/mips/sibyte/cfe/smp.c
@@ -31,7 +31,7 @@
*
* Common setup before any secondaries are started
*/
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
{
int i, num;
@@ -40,14 +40,18 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
__cpu_number_map[0] = 0;
__cpu_logical_map[0] = 0;
- for (i=1, num=0; i<NR_CPUS; i++) {
+ for (i = 1, num = 0; i < NR_CPUS; i++) {
if (cfe_cpu_stop(i) == 0) {
cpu_set(i, phys_cpu_present_map);
__cpu_number_map[i] = ++num;
__cpu_logical_map[num] = i;
}
}
- printk("Detected %i available secondary CPU(s)\n", num);
+ printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
}
/*
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d112aed2999..fec07a12c6c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -989,7 +989,7 @@ source "arch/powerpc/oprofile/Kconfig"
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
- depends on PPC64
+ depends on PPC64 && EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 82d117c60d7..d63cd562d9d 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -816,8 +816,6 @@ void __init unflatten_device_tree(void)
{
unsigned long start, mem, size;
struct device_node **allnextp = &allnodes;
- char *p = NULL;
- int l = 0;
DBG(" -> unflatten_device_tree()\n");
@@ -853,19 +851,6 @@ void __init unflatten_device_tree(void)
if (of_chosen == NULL)
of_chosen = of_find_node_by_path("/chosen@0");
- /* Retreive command line */
- if (of_chosen != NULL) {
- p = (char *)get_property(of_chosen, "bootargs", &l);
- if (p != NULL && l > 0)
- strlcpy(cmd_line, p, min(l, COMMAND_LINE_SIZE));
- }
-#ifdef CONFIG_CMDLINE
- if (l == 0 || (l == 1 && (*p) == 0))
- strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif /* CONFIG_CMDLINE */
-
- DBG("Command line is: %s\n", cmd_line);
-
DBG(" <- unflatten_device_tree()\n");
}
@@ -936,6 +921,8 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
{
u32 *prop;
unsigned long *lprop;
+ unsigned long l;
+ char *p;
DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
@@ -1000,6 +987,41 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
crashk_res.end = crashk_res.start + *lprop - 1;
#endif
+ /* Retreive command line */
+ p = of_get_flat_dt_prop(node, "bootargs", &l);
+ if (p != NULL && l > 0)
+ strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
+
+#ifdef CONFIG_CMDLINE
+ if (l == 0 || (l == 1 && (*p) == 0))
+ strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif /* CONFIG_CMDLINE */
+
+ DBG("Command line is: %s\n", cmd_line);
+
+ if (strstr(cmd_line, "mem=")) {
+ char *p, *q;
+ unsigned long maxmem = 0;
+
+ for (q = cmd_line; (p = strstr(q, "mem=")) != 0; ) {
+ q = p + 4;
+ if (p > cmd_line && p[-1] != ' ')
+ continue;
+ maxmem = simple_strtoul(q, &q, 0);
+ if (*q == 'k' || *q == 'K') {
+ maxmem <<= 10;
+ ++q;
+ } else if (*q == 'm' || *q == 'M') {
+ maxmem <<= 20;
+ ++q;
+ } else if (*q == 'g' || *q == 'G') {
+ maxmem <<= 30;
+ ++q;
+ }
+ }
+ memory_limit = maxmem;
+ }
+
/* break now */
return 1;
}
@@ -1120,7 +1142,7 @@ static void __init early_reserve_mem(void)
size_32 = *(reserve_map_32++);
if (size_32 == 0)
break;
- DBG("reserving: %lx -> %lx\n", base_32, size_32);
+ DBG("reserving: %x -> %x\n", base_32, size_32);
lmb_reserve(base_32, size_32);
}
return;
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
index ccaeda5136d..4ee871f1cad 100644
--- a/arch/powerpc/kernel/vdso64/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
@@ -225,9 +225,9 @@ V_FUNCTION_BEGIN(__do_get_xsec)
.cfi_startproc
/* check for update count & load values */
1: ld r8,CFG_TB_UPDATE_COUNT(r3)
- andi. r0,r4,1 /* pending update ? loop */
+ andi. r0,r8,1 /* pending update ? loop */
bne- 1b
- xor r0,r4,r4 /* create dependency */
+ xor r0,r8,r8 /* create dependency */
add r3,r3,r0
/* Get TB & offset it */
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index ae2c919cbec..7d9ce9a4821 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -169,7 +169,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
#ifdef CONFIG_PPC_ISERIES
if (_machine == PLATFORM_ISERIES_LPAR)
ret = iSeries_hpte_insert(hpteg, va,
- virt_to_abs(paddr),
+ __pa(vaddr),
tmp_mode,
HPTE_V_BOLTED,
psize);
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 83578313ee7..2ab9dcdfb41 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -893,6 +893,20 @@ void eeh_add_device_tree_early(struct device_node *dn)
}
EXPORT_SYMBOL_GPL(eeh_add_device_tree_early);
+void eeh_add_device_tree_late(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ eeh_add_device_late(dev);
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+ struct pci_bus *subbus = dev->subordinate;
+ if (subbus)
+ eeh_add_device_tree_late(subbus);
+ }
+ }
+}
+
/**
* eeh_add_device_late - perform EEH initialization for the indicated pci device
* @dev: pci device for which to set up EEH
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index e3cbba49fd6..b811d5ff92f 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -37,7 +37,7 @@
static inline const char * pcid_name (struct pci_dev *pdev)
{
- if (pdev->dev.driver)
+ if (pdev && pdev->dev.driver)
return pdev->dev.driver->name;
return "";
}
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index bdaa8aabdaa..f3bad900bbc 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -106,6 +106,8 @@ pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
}
}
}
+
+ eeh_add_device_tree_late(bus);
}
EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices);
@@ -114,7 +116,6 @@ pcibios_pci_config_bridge(struct pci_dev *dev)
{
u8 sec_busno;
struct pci_bus *child_bus;
- struct pci_dev *child_dev;
/* Get busno of downstream bus */
pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno);
@@ -129,10 +130,6 @@ pcibios_pci_config_bridge(struct pci_dev *dev)
pci_scan_child_bus(child_bus);
- list_for_each_entry(child_dev, &child_bus->devices, bus_list) {
- eeh_add_device_late(child_dev);
- }
-
/* Fixup new pci devices without touching bus struct */
pcibios_fixup_new_pci_devices(child_bus, 0);
@@ -160,18 +157,25 @@ pcibios_add_pci_devices(struct pci_bus * bus)
eeh_add_device_tree_early(dn);
- /* pci_scan_slot should find all children */
- slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
- num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
- if (num) {
- pcibios_fixup_new_pci_devices(bus, 1);
- pci_bus_add_devices(bus);
- }
+ if (_machine == PLATFORM_PSERIES_LPAR) {
+ /* use ofdt-based probe */
+ of_scan_bus(dn, bus);
+ if (!list_empty(&bus->devices)) {
+ pcibios_fixup_new_pci_devices(bus, 0);
+ pci_bus_add_devices(bus);
+ }
+ } else {
+ /* use legacy probe */
+ slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
+ num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));
+ if (num) {
+ pcibios_fixup_new_pci_devices(bus, 1);
+ pci_bus_add_devices(bus);
+ }
- list_for_each_entry(dev, &bus->devices, bus_list) {
- eeh_add_device_late (dev);
- if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
- pcibios_pci_config_bridge(dev);
+ list_for_each_entry(dev, &bus->devices, bus_list)
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+ pcibios_pci_config_bridge(dev);
}
}
EXPORT_SYMBOL_GPL(pcibios_add_pci_devices);
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 615964cca15..50e80138e7a 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1552,6 +1552,7 @@ sys_linkat_wrapper:
llgtr %r3,%r3 # const char *
lgfr %r4,%r4 # int
llgtr %r5,%r5 # const char *
+ lgfr %r6,%r6 # int
jg sys_linkat
.globl sys_symlinkat_wrapper
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index ab733be9af0..4c0a50a7655 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -383,6 +383,7 @@ source "arch/sparc64/oprofile/Kconfig"
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index 054461e6946..158bd31e15b 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -542,6 +542,8 @@ void __init setup_arch(char **cmdline_p)
}
#endif
+ smp_setup_cpu_possible_map();
+
paging_init();
}
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 1fb6323e65a..1f7ad8a6905 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -1079,18 +1079,12 @@ int setup_profiling_timer(unsigned int multiplier)
return 0;
}
+/* Constrain the number of cpus to max_cpus. */
void __init smp_prepare_cpus(unsigned int max_cpus)
{
- int instance, mid;
-
- instance = 0;
- while (!cpu_find_by_instance(instance, NULL, &mid)) {
- if (mid < max_cpus)
- cpu_set(mid, phys_cpu_present_map);
- instance++;
- }
-
if (num_possible_cpus() > max_cpus) {
+ int instance, mid;
+
instance = 0;
while (!cpu_find_by_instance(instance, NULL, &mid)) {
if (mid != boot_cpu_id) {
@@ -1105,6 +1099,22 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
smp_store_cpu_info(boot_cpu_id);
}
+/* Set this up early so that things like the scheduler can init
+ * properly. We use the same cpu mask for both the present and
+ * possible cpu map.
+ */
+void __init smp_setup_cpu_possible_map(void)
+{
+ int instance, mid;
+
+ instance = 0;
+ while (!cpu_find_by_instance(instance, NULL, &mid)) {
+ if (mid < NR_CPUS)
+ cpu_set(mid, phys_cpu_present_map);
+ instance++;
+ }
+}
+
void __devinit smp_prepare_boot_cpu(void)
{
if (hard_smp_processor_id() >= NR_CPUS) {
diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h
index dc36b222100..04e3958266e 100644
--- a/arch/um/drivers/cow.h
+++ b/arch/um/drivers/cow.h
@@ -46,7 +46,7 @@ extern int file_reader(__u64 offset, char *buf, int len, void *arg);
extern int read_cow_header(int (*reader)(__u64, char *, int, void *),
void *arg, __u32 *version_out,
char **backing_file_out, time_t *mtime_out,
- unsigned long long *size_out, int *sectorsize_out,
+ __u64 *size_out, int *sectorsize_out,
__u32 *align_out, int *bitmap_offset_out);
extern int write_cow_header(char *cow_file, int fd, char *backing_file,
diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h
index c83fc5d6893..94de4ead4f7 100644
--- a/arch/um/drivers/cow_sys.h
+++ b/arch/um/drivers/cow_sys.h
@@ -23,17 +23,17 @@ static inline char *cow_strdup(char *str)
return(uml_strdup(str));
}
-static inline int cow_seek_file(int fd, unsigned long long offset)
+static inline int cow_seek_file(int fd, __u64 offset)
{
return(os_seek_file(fd, offset));
}
-static inline int cow_file_size(char *file, unsigned long long *size_out)
+static inline int cow_file_size(char *file, __u64 *size_out)
{
return(os_file_size(file, size_out));
}
-static inline int cow_write_file(int fd, char *buf, int size)
+static inline int cow_write_file(int fd, void *buf, int size)
{
return(os_write_file(fd, buf, size));
}
diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index fbe2217db5d..61951b72126 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -176,7 +176,7 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
err = -ENOMEM;
header = cow_malloc(sizeof(*header));
if(header == NULL){
- cow_printf("Failed to allocate COW V3 header\n");
+ cow_printf("write_cow_header - failed to allocate COW V3 header\n");
goto out;
}
header->magic = htonl(COW_MAGIC);
@@ -196,15 +196,17 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
err = os_file_modtime(header->backing_file, &modtime);
if(err < 0){
- cow_printf("Backing file '%s' mtime request failed, "
- "err = %d\n", header->backing_file, -err);
+ cow_printf("write_cow_header - backing file '%s' mtime "
+ "request failed, err = %d\n", header->backing_file,
+ -err);
goto out_free;
}
err = cow_file_size(header->backing_file, size);
if(err < 0){
- cow_printf("Couldn't get size of backing file '%s', "
- "err = %d\n", header->backing_file, -err);
+ cow_printf("write_cow_header - couldn't get size of "
+ "backing file '%s', err = %d\n",
+ header->backing_file, -err);
goto out_free;
}
@@ -214,10 +216,11 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
header->alignment = htonl(alignment);
header->cow_format = COW_BITMAP;
- err = os_write_file(fd, header, sizeof(*header));
+ err = cow_write_file(fd, header, sizeof(*header));
if(err != sizeof(*header)){
- cow_printf("Write of header to new COW file '%s' failed, "
- "err = %d\n", cow_file, -err);
+ cow_printf("write_cow_header - write of header to "
+ "new COW file '%s' failed, err = %d\n", cow_file,
+ -err);
goto out_free;
}
err = 0;
@@ -299,7 +302,7 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
}
else if(version == 3){
if(n < sizeof(header->v3)){
- cow_printf("read_cow_header - failed to read V2 "
+ cow_printf("read_cow_header - failed to read V3 "
"header\n");
goto out;
}
@@ -359,7 +362,8 @@ int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize,
if(err != sizeof(zero)){
cow_printf("Write of bitmap to new COW file '%s' failed, "
"err = %d\n", cow_file, -err);
- err = -EINVAL;
+ if (err >= 0)
+ err = -EINVAL;
goto out;
}
diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
index 098fa65981a..0e2f06187ea 100644
--- a/arch/um/drivers/net_user.c
+++ b/arch/um/drivers/net_user.c
@@ -47,10 +47,12 @@ void tap_check_ips(char *gate_addr, unsigned char *eth_addr)
}
}
+/* Do reliable error handling as this fails frequently enough. */
void read_output(int fd, char *output, int len)
{
- int remain, n, actual;
+ int remain, ret, expected;
char c;
+ char *str;
if(output == NULL){
output = &c;
@@ -58,23 +60,31 @@ void read_output(int fd, char *output, int len)
}
*output = '\0';
- n = os_read_file(fd, &remain, sizeof(remain));
- if(n != sizeof(remain)){
- printk("read_output - read of length failed, err = %d\n", -n);
- return;
+ ret = os_read_file(fd, &remain, sizeof(remain));
+
+ if (ret != sizeof(remain)) {
+ expected = sizeof(remain);
+ str = "length";
+ goto err;
}
while(remain != 0){
- n = (remain < len) ? remain : len;
- actual = os_read_file(fd, output, n);
- if(actual != n){
- printk("read_output - read of data failed, "
- "err = %d\n", -actual);
- return;
+ expected = (remain < len) ? remain : len;
+ ret = os_read_file(fd, output, expected);
+ if (ret != expected) {
+ str = "data";
+ goto err;
}
- remain -= actual;
+ remain -= ret;
}
+
return;
+
+err:
+ if (ret < 0)
+ printk("read_output - read of %s failed, errno = %d\n", str, -ret);
+ else
+ printk("read_output - read of %s failed, read only %d of %d bytes\n", str, ret, expected);
}
int net_read(int fd, void *buf, int len)
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 101efd26d46..fa617e0719a 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1135,7 +1135,7 @@ static int path_requires_switch(char *from_cmdline, char *from_cow, char *cow)
static int backing_file_mismatch(char *file, __u64 size, time_t mtime)
{
unsigned long modtime;
- long long actual;
+ unsigned long long actual;
int err;
err = os_file_modtime(file, &modtime);
diff --git a/arch/um/include/init.h b/arch/um/include/init.h
index cbd79a8d213..d4de7c0120c 100644
--- a/arch/um/include/init.h
+++ b/arch/um/include/init.h
@@ -122,7 +122,7 @@ extern struct uml_param __uml_setup_start, __uml_setup_end;
#define __exitcall(fn) static exitcall_t __exitcall_##fn __exit_call = fn
-#define __init_call __attribute__ ((unused,__section__ (".initcall.init")))
+#define __init_call __attribute_used__ __attribute__ ((__section__ (".initcall.init")))
#endif
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index eb1710b8125..2a1c64d8d0b 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -179,8 +179,11 @@ extern void os_stop_process(int pid);
extern void os_kill_process(int pid, int reap_child);
extern void os_kill_ptraced_process(int pid, int reap_child);
extern void os_usr1_process(int pid);
+extern long os_ptrace_ldt(long pid, long addr, long data);
+
extern int os_getpid(void);
extern int os_getpgrp(void);
+
extern void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int));
extern void init_new_thread_signals(int altstack);
extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr);
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index f55773c819e..3bd10deea28 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -272,14 +272,23 @@ int os_connect_socket(char *name)
snprintf(sock.sun_path, sizeof(sock.sun_path), "%s", name);
fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if(fd < 0)
- return(fd);
+ if(fd < 0) {
+ err = -errno;
+ goto out;
+ }
err = connect(fd, (struct sockaddr *) &sock, sizeof(sock));
- if(err)
- return(-errno);
+ if(err) {
+ err = -errno;
+ goto out_close;
+ }
- return(fd);
+ return fd;
+
+out_close:
+ close(fd);
+out:
+ return err;
}
void os_close_file(int fd)
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index 7f5e2dac2a3..d261888f39c 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -19,6 +19,7 @@
#include "irq_user.h"
#include "kern_util.h"
#include "longjmp.h"
+#include "skas_ptrace.h"
#define ARBITRARY_ADDR -1
#define FAILURE_PID -1
@@ -100,6 +101,21 @@ void os_kill_process(int pid, int reap_child)
}
+/* This is here uniquely to have access to the userspace errno, i.e. the one
+ * used by ptrace in case of error.
+ */
+
+long os_ptrace_ldt(long pid, long addr, long data)
+{
+ int ret;
+
+ ret = ptrace(PTRACE_LDT, pid, addr, data);
+
+ if (ret < 0)
+ return -errno;
+ return ret;
+}
+
/* Kill off a ptraced child by all means available. kill it normally first,
* then PTRACE_KILL it, then PTRACE_CONT it in case it's in a run state from
* which it can't exit directly.
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
index 1fa09a79a10..fe0877b3509 100644
--- a/arch/um/sys-i386/ldt.c
+++ b/arch/um/sys-i386/ldt.c
@@ -107,7 +107,7 @@ long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
* So we need to switch child's mm into our userspace, then
* later switch back.
*
- * Note: I'm unshure: should interrupts be disabled here?
+ * Note: I'm unsure: should interrupts be disabled here?
*/
if(!current->active_mm || current->active_mm == &init_mm ||
mm_idp != &current->active_mm->context.skas.id)
@@ -129,9 +129,7 @@ long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
pid = userspace_pid[cpu];
}
- res = ptrace(PTRACE_LDT, pid, 0, (unsigned long) &ldt_op);
- if(res)
- res = errno;
+ res = os_ptrace_ldt(pid, 0, (unsigned long) &ldt_op);
if(proc_mm)
put_cpu();
@@ -181,8 +179,7 @@ static long read_ldt_from_host(void __user * ptr, unsigned long bytecount)
*/
cpu = get_cpu();
- res = ptrace(PTRACE_LDT, userspace_pid[cpu], 0,
- (unsigned long) &ptrace_ldt);
+ res = os_ptrace_ldt(userspace_pid[cpu], 0, (unsigned long) &ptrace_ldt);
put_cpu();
if(res < 0)
goto out;
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 2f9deca31cc..e18eb79bf85 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -354,21 +354,6 @@ config HPET_TIMER
as it is off-chip. You can find the HPET spec at
<http://www.intel.com/hardwaredesign/hpetspec.htm>.
-config X86_PM_TIMER
- bool "PM timer" if EMBEDDED
- depends on ACPI
- default y
- help
- Support the ACPI PM timer for time keeping. This is slow,
- but is useful on some chipsets without HPET on systems with more
- than one CPU. On a single processor or single socket multi core
- system it is normally not required.
- When the PM timer is active 64bit vsyscalls are disabled
- and should not be enabled (/proc/sys/kernel/vsyscall64 should
- not be changed).
- The kernel selects the PM timer only as a last resort, so it is
- useful to enable just in case.
-
config HPET_EMULATE_RTC
bool "Provide RTC interrupt"
depends on HPET_TIMER && RTC=y
@@ -592,6 +577,7 @@ source "arch/x86_64/oprofile/Kconfig"
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile
index 72fe60c20d3..a098a11e775 100644
--- a/arch/x86_64/kernel/Makefile
+++ b/arch/x86_64/kernel/Makefile
@@ -43,7 +43,7 @@ CFLAGS_vsyscall.o := $(PROFILING) -g0
bootflag-y += ../../i386/kernel/bootflag.o
cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o
-topology-y += ../../i386/mach-default/topology.o
+topology-y += ../../i386/kernel/topology.o
microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o
intel_cacheinfo-y += ../../i386/kernel/cpu/intel_cacheinfo.o
quirks-y += ../../i386/kernel/quirks.o
diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c
index e4e2b7d01f8..a0f955b9995 100644
--- a/arch/x86_64/kernel/aperture.c
+++ b/arch/x86_64/kernel/aperture.c
@@ -248,7 +248,7 @@ void __init iommu_hole_init(void)
/* Got the aperture from the AGP bridge */
} else if (swiotlb && !valid_agp) {
/* Do nothing */
- } else if ((!no_iommu && end_pfn >= MAX_DMA32_PFN) ||
+ } else if ((!no_iommu && end_pfn > MAX_DMA32_PFN) ||
force_iommu ||
valid_agp ||
fallback_aper_force) {
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 2585c1d92b2..ffed464e6b1 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -50,6 +50,8 @@ static int no_timer_check;
int disable_timer_pin_1 __initdata;
+int timer_over_8254 __initdata = 1;
+
/* Where if anywhere is the i8259 connect in external int mode */
static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
@@ -251,6 +253,20 @@ static int __init enable_ioapic_setup(char *str)
__setup("noapic", disable_ioapic_setup);
__setup("apic", enable_ioapic_setup);
+static int __init setup_disable_8254_timer(char *s)
+{
+ timer_over_8254 = -1;
+ return 1;
+}
+static int __init setup_enable_8254_timer(char *s)
+{
+ timer_over_8254 = 2;
+ return 1;
+}
+
+__setup("disable_8254_timer", setup_disable_8254_timer);
+__setup("enable_8254_timer", setup_enable_8254_timer);
+
#include <asm/pci-direct.h>
#include <linux/pci_ids.h>
#include <linux/pci.h>
@@ -309,27 +325,20 @@ void __init check_ioapic(void)
#endif
/* RED-PEN skip them on mptables too? */
return;
+
+ /* This should be actually default, but
+ for 2.6.16 let's do it for ATI only where
+ it's really needed. */
case PCI_VENDOR_ID_ATI:
- if (apic_runs_main_timer != 0)
- break;
-#ifdef CONFIG_ACPI
- /* Don't do this for laptops right
- right now because their timer
- doesn't necessarily tick in C2/3 */
- if (acpi_fadt.revision >= 3 &&
- (acpi_fadt.plvl2_lat + acpi_fadt.plvl3_lat) < 1100) {
- printk(KERN_INFO
-"ATI board detected, but seems to be a laptop. Timer might be shakey, sorry\n");
- break;
- }
-#endif
+ if (timer_over_8254 == 1) {
+ timer_over_8254 = 0;
printk(KERN_INFO
- "ATI board detected. Using APIC/PM timer.\n");
- apic_runs_main_timer = 1;
- nohpet = 1;
+ "ATI board detected. Disabling timer routing over 8254.\n");
+ }
return;
}
+
/* No multi-function device? */
type = read_pci_config_byte(num,slot,func,
PCI_HEADER_TYPE);
@@ -1773,6 +1782,8 @@ static inline void unlock_ExtINT_logic(void)
* a wide range of boards and BIOS bugs. Fortunately only the timer IRQ
* is so screwy. Thanks to Brian Perkins for testing/hacking this beast
* fanatically on his truly buggy board.
+ *
+ * FIXME: really need to revamp this for modern platforms only.
*/
static inline void check_timer(void)
{
@@ -1795,7 +1806,8 @@ static inline void check_timer(void)
*/
apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
init_8259A(1);
- enable_8259A_irq(0);
+ if (timer_over_8254 > 0)
+ enable_8259A_irq(0);
pin1 = find_isa_irq_pin(0, mp_INT);
apic1 = find_isa_irq_apic(0, mp_INT);
@@ -1850,7 +1862,7 @@ static inline void check_timer(void)
}
printk(" failed.\n");
- if (nmi_watchdog) {
+ if (nmi_watchdog == NMI_IO_APIC) {
printk(KERN_WARNING "timer doesn't work through the IO-APIC - disabling NMI Watchdog!\n");
nmi_watchdog = 0;
}
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index dd0718dc178..0c3f052ba6c 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -228,11 +228,6 @@ static inline int need_iommu(struct device *dev, unsigned long addr, size_t size
int mmu = high;
if (force_iommu)
mmu = 1;
- if (no_iommu) {
- if (high)
- panic("PCI-DMA: high address but no IOMMU.\n");
- mmu = 0;
- }
return mmu;
}
@@ -241,11 +236,6 @@ static inline int nonforced_iommu(struct device *dev, unsigned long addr, size_t
u64 mask = *dev->dma_mask;
int high = addr + size >= mask;
int mmu = high;
- if (no_iommu) {
- if (high)
- panic("PCI-DMA: high address but no IOMMU.\n");
- mmu = 0;
- }
return mmu;
}
@@ -310,7 +300,7 @@ void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int di
for (i = 0; i < nents; i++) {
struct scatterlist *s = &sg[i];
- if (!s->dma_length)
+ if (!s->dma_length || !s->length)
break;
dma_unmap_single(dev, s->dma_address, s->dma_length, dir);
}
@@ -364,6 +354,7 @@ static int __dma_map_cont(struct scatterlist *sg, int start, int stopat,
BUG_ON(i > start && s->offset);
if (i == start) {
+ *sout = *s;
sout->dma_address = iommu_bus_base;
sout->dma_address += iommu_page*PAGE_SIZE + s->offset;
sout->dma_length = s->length;
@@ -390,6 +381,7 @@ static inline int dma_map_cont(struct scatterlist *sg, int start, int stopat,
{
if (!need) {
BUG_ON(stopat - start != 1);
+ *sout = sg[start];
sout->dma_length = sg[start].length;
return 0;
}
@@ -632,17 +624,13 @@ static int __init pci_iommu_init(void)
(agp_copy_info(agp_bridge, &info) < 0);
#endif
- if (swiotlb) {
- no_iommu = 1;
+ if (swiotlb)
return -1;
- }
-
+
if (no_iommu ||
(!force_iommu && end_pfn <= MAX_DMA32_PFN) ||
!iommu_aperture ||
(no_agp && init_k8_gatt(&info) < 0)) {
- no_iommu = 1;
- no_iommu_init();
printk(KERN_INFO "PCI-DMA: Disabling IOMMU.\n");
if (end_pfn > MAX_DMA32_PFN) {
printk(KERN_ERR "WARNING more than 4GB of memory "
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 9435ab7d6fb..aa55e3cec66 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -423,6 +423,12 @@ static __init void parse_cmdline_early (char ** cmdline_p)
else if(!memcmp(from, "elfcorehdr=", 11))
elfcorehdr_addr = memparse(from+11, &from);
#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+ else if (!memcmp(from, "additional_cpus=", 16))
+ setup_additional_cpus(from+16);
+#endif
+
next_char:
c = *(from++);
if (!c)
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index 67e4e28f4df..66e98659d07 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -1152,8 +1152,6 @@ void __init smp_cpus_done(unsigned int max_cpus)
setup_ioapic_dest();
#endif
- time_init_gtod();
-
check_nmi_watchdog();
}
@@ -1244,7 +1242,7 @@ void __cpu_die(unsigned int cpu)
printk(KERN_ERR "CPU %u didn't die...\n", cpu);
}
-static __init int setup_additional_cpus(char *s)
+__init int setup_additional_cpus(char *s)
{
return get_option(&s, &additional_cpus);
}
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 67841d11ed1..3080f84bf7b 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -48,6 +48,8 @@ static void cpufreq_delayed_get(void);
extern void i8254_timer_resume(void);
extern int using_apic_timer;
+static char *time_init_gtod(void);
+
DEFINE_SPINLOCK(rtc_lock);
DEFINE_SPINLOCK(i8253_lock);
@@ -901,6 +903,7 @@ static struct irqaction irq0 = {
void __init time_init(void)
{
char *timename;
+ char *gtod;
#ifdef HPET_HACK_ENABLE_DANGEROUS
if (!vxtime.hpet_address) {
@@ -945,21 +948,19 @@ void __init time_init(void)
timename = "PIT";
}
- printk(KERN_INFO "time.c: Using %ld.%06ld MHz %s timer.\n",
- vxtime_hz / 1000000, vxtime_hz % 1000000, timename);
+ vxtime.mode = VXTIME_TSC;
+ gtod = time_init_gtod();
+
+ printk(KERN_INFO "time.c: Using %ld.%06ld MHz WALL %s GTOD %s timer.\n",
+ vxtime_hz / 1000000, vxtime_hz % 1000000, timename, gtod);
printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
cpu_khz / 1000, cpu_khz % 1000);
- vxtime.mode = VXTIME_TSC;
vxtime.quot = (1000000L << 32) / vxtime_hz;
vxtime.tsc_quot = (1000L << 32) / cpu_khz;
vxtime.last_tsc = get_cycles_sync();
setup_irq(0, &irq0);
set_cyc2ns_scale(cpu_khz);
-
-#ifndef CONFIG_SMP
- time_init_gtod();
-#endif
}
/*
@@ -981,9 +982,9 @@ __cpuinit int unsynchronized_tsc(void)
}
/*
- * Decide after all CPUs are booted what mode gettimeofday should use.
+ * Decide what mode gettimeofday should use.
*/
-void __init time_init_gtod(void)
+__init static char *time_init_gtod(void)
{
char *timetype;
@@ -1011,8 +1012,7 @@ void __init time_init_gtod(void)
timetype = hpet_use_timer ? "HPET/TSC" : "PIT/TSC";
vxtime.mode = VXTIME_TSC;
}
-
- printk(KERN_INFO "time.c: Using %s based timekeeping.\n", timetype);
+ return timetype;
}
__setup("report_lost_ticks", time_setup);