diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/kernel/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/kernel/time.c (renamed from arch/x86/kernel/time_32.c) | 0 | ||||
-rw-r--r-- | arch/x86/kernel/time_64.c | 121 |
3 files changed, 1 insertions, 122 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 313ed6fca9b3..ccf3db607c2d 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile | |||
@@ -31,7 +31,7 @@ GCOV_PROFILE_paravirt.o := n | |||
31 | 31 | ||
32 | obj-y := process_$(BITS).o signal.o entry_$(BITS).o | 32 | obj-y := process_$(BITS).o signal.o entry_$(BITS).o |
33 | obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o | 33 | obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o |
34 | obj-y += time_$(BITS).o ioport.o ldt.o dumpstack.o | 34 | obj-y += time.o ioport.o ldt.o dumpstack.o |
35 | obj-y += setup.o x86_init.o i8259.o irqinit.o | 35 | obj-y += setup.o x86_init.o i8259.o irqinit.o |
36 | obj-$(CONFIG_X86_VISWS) += visws_quirks.o | 36 | obj-$(CONFIG_X86_VISWS) += visws_quirks.o |
37 | obj-$(CONFIG_X86_32) += probe_roms_32.o | 37 | obj-$(CONFIG_X86_32) += probe_roms_32.o |
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time.c index fda0c34da757..fda0c34da757 100644 --- a/arch/x86/kernel/time_32.c +++ b/arch/x86/kernel/time.c | |||
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c deleted file mode 100644 index fda0c34da757..000000000000 --- a/arch/x86/kernel/time_64.c +++ /dev/null | |||
@@ -1,121 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) 1991,1992,1995 Linus Torvalds | ||
3 | * Copyright (c) 1994 Alan Modra | ||
4 | * Copyright (c) 1995 Markus Kuhn | ||
5 | * Copyright (c) 1996 Ingo Molnar | ||
6 | * Copyright (c) 1998 Andrea Arcangeli | ||
7 | * Copyright (c) 2002,2006 Vojtech Pavlik | ||
8 | * Copyright (c) 2003 Andi Kleen | ||
9 | * | ||
10 | */ | ||
11 | |||
12 | #include <linux/clockchips.h> | ||
13 | #include <linux/interrupt.h> | ||
14 | #include <linux/time.h> | ||
15 | #include <linux/mca.h> | ||
16 | |||
17 | #include <asm/vsyscall.h> | ||
18 | #include <asm/x86_init.h> | ||
19 | #include <asm/i8259.h> | ||
20 | #include <asm/i8253.h> | ||
21 | #include <asm/timer.h> | ||
22 | #include <asm/hpet.h> | ||
23 | #include <asm/time.h> | ||
24 | |||
25 | #if defined(CONFIG_X86_32) && defined(CONFIG_X86_IO_APIC) | ||
26 | int timer_ack; | ||
27 | #endif | ||
28 | |||
29 | #ifdef CONFIG_X86_64 | ||
30 | volatile unsigned long __jiffies __section_jiffies = INITIAL_JIFFIES; | ||
31 | #endif | ||
32 | |||
33 | unsigned long profile_pc(struct pt_regs *regs) | ||
34 | { | ||
35 | unsigned long pc = instruction_pointer(regs); | ||
36 | |||
37 | if (!user_mode_vm(regs) && in_lock_functions(pc)) { | ||
38 | #ifdef CONFIG_FRAME_POINTER | ||
39 | return *(unsigned long *)(regs->bp + sizeof(long)); | ||
40 | #else | ||
41 | unsigned long *sp = (unsigned long *)regs->sp; | ||
42 | /* | ||
43 | * Return address is either directly at stack pointer | ||
44 | * or above a saved flags. Eflags has bits 22-31 zero, | ||
45 | * kernel addresses don't. | ||
46 | */ | ||
47 | if (sp[0] >> 22) | ||
48 | return sp[0]; | ||
49 | if (sp[1] >> 22) | ||
50 | return sp[1]; | ||
51 | #endif | ||
52 | } | ||
53 | return pc; | ||
54 | } | ||
55 | EXPORT_SYMBOL(profile_pc); | ||
56 | |||
57 | /* | ||
58 | * Default timer interrupt handler for PIT/HPET | ||
59 | */ | ||
60 | static irqreturn_t timer_interrupt(int irq, void *dev_id) | ||
61 | { | ||
62 | /* Keep nmi watchdog up to date */ | ||
63 | inc_irq_stat(irq0_irqs); | ||
64 | |||
65 | /* Optimized out for !IO_APIC and x86_64 */ | ||
66 | if (timer_ack) { | ||
67 | /* | ||
68 | * Subtle, when I/O APICs are used we have to ack timer IRQ | ||
69 | * manually to deassert NMI lines for the watchdog if run | ||
70 | * on an 82489DX-based system. | ||
71 | */ | ||
72 | spin_lock(&i8259A_lock); | ||
73 | outb(0x0c, PIC_MASTER_OCW3); | ||
74 | /* Ack the IRQ; AEOI will end it automatically. */ | ||
75 | inb(PIC_MASTER_POLL); | ||
76 | spin_unlock(&i8259A_lock); | ||
77 | } | ||
78 | |||
79 | global_clock_event->event_handler(global_clock_event); | ||
80 | |||
81 | /* MCA bus quirk: Acknowledge irq0 by setting bit 7 in port 0x61 */ | ||
82 | if (MCA_bus) | ||
83 | outb_p(inb_p(0x61)| 0x80, 0x61); | ||
84 | |||
85 | return IRQ_HANDLED; | ||
86 | } | ||
87 | |||
88 | static struct irqaction irq0 = { | ||
89 | .handler = timer_interrupt, | ||
90 | .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER, | ||
91 | .name = "timer" | ||
92 | }; | ||
93 | |||
94 | void __init setup_default_timer_irq(void) | ||
95 | { | ||
96 | irq0.mask = cpumask_of_cpu(0); | ||
97 | setup_irq(0, &irq0); | ||
98 | } | ||
99 | |||
100 | /* Default timer init function */ | ||
101 | void __init hpet_time_init(void) | ||
102 | { | ||
103 | if (!hpet_enable()) | ||
104 | setup_pit_timer(); | ||
105 | setup_default_timer_irq(); | ||
106 | } | ||
107 | |||
108 | static void x86_late_time_init(void) | ||
109 | { | ||
110 | x86_init.timers.timer_init(); | ||
111 | } | ||
112 | |||
113 | /* | ||
114 | * Initialize TSC and delay the periodic timer init to | ||
115 | * late x86_late_time_init() so ioremap works. | ||
116 | */ | ||
117 | void __init time_init(void) | ||
118 | { | ||
119 | tsc_init(); | ||
120 | late_time_init = x86_late_time_init; | ||
121 | } | ||