diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 9f51e1ea9e8225e919ccb69ad6b4bc315c6f38cc..84fd9f2a28ffed9fabbf7986cac3b0968138fd48 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -98,17 +98,6 @@ static void __init nvidia_bugs(int num, int slot, int func)
}
-static void __init ati_bugs(int num, int slot, int func)
-{
-#ifdef CONFIG_X86_IO_APIC
- if (timer_over_8254 == 1) {
- timer_over_8254 = 0;
- printk(KERN_INFO
- "ATI board detected. Disabling timer routing over 8254.\n");
- }
-#endif
-}
-
#define QFLAG_APPLY_ONCE 0x1
#define QFLAG_APPLIED 0x2
#define QFLAG_DONE (QFLAG_APPLY_ONCE|QFLAG_APPLIED)
@@ -126,8 +115,6 @@ static struct chipset early_qrk[] __initdata = {
PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
{ PCI_VENDOR_ID_VIA, PCI_ANY_ID,
PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, via_bugs },
- { PCI_VENDOR_ID_ATI, PCI_ANY_ID,
- PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, ati_bugs },
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, fix_hypertransport_config },
{}
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index c64b3f5cc121e5f5385e721c993fb1979cc48766..61cf366d040f6c5dc623c021864ed4d317ecfb48 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -58,7 +58,6 @@ static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
static DEFINE_SPINLOCK(ioapic_lock);
static DEFINE_SPINLOCK(vector_lock);
-int timer_over_8254 __initdata = 1;
/*
* Is the SiS APIC rmw bug present ?
@@ -2157,8 +2156,6 @@ static inline void __init check_timer(void)
apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
init_8259A(1);
timer_ack = (nmi_watchdog == NMI_IO_APIC && !APIC_INTEGRATED(ver));
- 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);
@@ -2175,7 +2172,6 @@ static inline void __init check_timer(void)
unmask_IO_APIC_irq(0);
if (timer_irq_works()) {
if (nmi_watchdog == NMI_IO_APIC) {
- disable_8259A_irq(0);
setup_nmi();
enable_8259A_irq(0);
}
@@ -2195,6 +2191,7 @@ static inline void __init check_timer(void)
* legacy devices should be connected to IO APIC #0
*/
setup_ExtINT_IRQ0_pin(apic2, pin2, vector);
+ enable_8259A_irq(0);
if (timer_irq_works()) {
printk("works.\n");
if (pin1 != -1)
@@ -2209,6 +2206,7 @@ static inline void __init check_timer(void)
/*
* Cleanup, just in case ...
*/
+ disable_8259A_irq(0);
clear_IO_APIC_pin(apic2, pin2);
}
printk(" failed.\n");
@@ -2221,7 +2219,6 @@ static inline void __init check_timer(void)
printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
- disable_8259A_irq(0);
set_irq_chip_and_handler_name(0, &lapic_chip, handle_fasteoi_irq,
"fasteoi");
apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */
@@ -2292,20 +2289,6 @@ void __init setup_IO_APIC(void)
print_IO_APIC();
}
-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);
-
/*
* Called after all the initialization is done. If we didnt find any
* APIC bugs then we can allow the modify fast path
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index 7c34e38e42197e58782a0d791453377723dafee0..9f16ca4b5a240af25733d003a3a24bf4d9a0cafb 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -90,7 +90,6 @@ static int no_timer_check;
static 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 };
@@ -430,20 +429,6 @@ static int __init disable_timer_pin_setup(char *arg)
}
__setup("disable_timer_pin_1", disable_timer_pin_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);
-
/*
* Find the IRQ entry number of a certain pin.
@@ -1674,8 +1659,6 @@ static inline void __init check_timer(void)
*/
apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
init_8259A(1);
- 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);
@@ -1693,7 +1676,6 @@ static inline void __init check_timer(void)
if (!no_timer_check && timer_irq_works()) {
nmi_watchdog_default();
if (nmi_watchdog == NMI_IO_APIC) {
- disable_8259A_irq(0);
setup_nmi();
enable_8259A_irq(0);
}
@@ -1715,6 +1697,7 @@ static inline void __init check_timer(void)
* legacy devices should be connected to IO APIC #0
*/
setup_ExtINT_IRQ0_pin(apic2, pin2, cfg->vector);
+ enable_8259A_irq(0);
if (timer_irq_works()) {
apic_printk(APIC_VERBOSE," works.\n");
nmi_watchdog_default();
@@ -1726,6 +1709,7 @@ static inline void __init check_timer(void)
/*
* Cleanup, just in case ...
*/
+ disable_8259A_irq(0);
clear_IO_APIC_pin(apic2, pin2);
}
apic_printk(APIC_VERBOSE," failed.\n");
@@ -1737,7 +1721,6 @@ static inline void __init check_timer(void)
apic_printk(APIC_VERBOSE, KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
- disable_8259A_irq(0);
irq_desc[0].chip = &lapic_irq_type;
apic_write(APIC_LVT0, APIC_DM_FIXED | cfg->vector); /* Fixed mode */
enable_8259A_irq(0);
diff --git a/include/asm-x86/apic.h b/include/asm-x86/apic.h
index be9639a9a186244fef74318f901172415a7e9343..9c2dfd926e5992ce69290110351db8a12181bd49 100644
--- a/include/asm-x86/apic.h
+++ b/include/asm-x86/apic.h
@@ -36,7 +36,6 @@ extern void generic_apic_probe(void);
#ifdef CONFIG_X86_LOCAL_APIC
extern int apic_verbosity;
-extern int timer_over_8254;
extern int local_apic_timer_c2_ok;
extern int local_apic_timer_disabled;