diff options
author | Jeff Garzik <jgarzik@pobox.com> | 2005-09-23 19:03:21 -0400 |
---|---|---|
committer | Jeff Garzik <jgarzik@pobox.com> | 2005-09-23 19:03:21 -0400 |
commit | 536f8098026bde1368bbfcbcb9682a7637b73df2 (patch) | |
tree | cf83d2e1afa503b6aeba103b55cd1da0af4e7a4c /arch/i386 | |
parent | e86ee6682b649183c11013a98be02f25e9ae399d (diff) | |
parent | 3fd07d3bf0077dcc0f5a33d2eb1938ea050da8da (diff) |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'arch/i386')
-rw-r--r-- | arch/i386/Kconfig | 5 | ||||
-rw-r--r-- | arch/i386/kernel/acpi/earlyquirk.c | 10 | ||||
-rw-r--r-- | arch/i386/lib/Makefile | 1 | ||||
-rw-r--r-- | arch/i386/lib/dec_and_lock.c | 42 |
4 files changed, 0 insertions, 58 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index b22f003eaa6d..d2703cda61ea 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig | |||
@@ -908,11 +908,6 @@ config IRQBALANCE | |||
908 | The default yes will allow the kernel to do irq load balancing. | 908 | The default yes will allow the kernel to do irq load balancing. |
909 | Saying no will keep the kernel from doing irq load balancing. | 909 | Saying no will keep the kernel from doing irq load balancing. |
910 | 910 | ||
911 | config HAVE_DEC_LOCK | ||
912 | bool | ||
913 | depends on (SMP || PREEMPT) && X86_CMPXCHG | ||
914 | default y | ||
915 | |||
916 | # turning this on wastes a bunch of space. | 911 | # turning this on wastes a bunch of space. |
917 | # Summit needs it only when NUMA is on | 912 | # Summit needs it only when NUMA is on |
918 | config BOOT_IOREMAP | 913 | config BOOT_IOREMAP |
diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c index 1ae2aeeda18b..f1b9d2a46dab 100644 --- a/arch/i386/kernel/acpi/earlyquirk.c +++ b/arch/i386/kernel/acpi/earlyquirk.c | |||
@@ -7,7 +7,6 @@ | |||
7 | #include <linux/pci.h> | 7 | #include <linux/pci.h> |
8 | #include <asm/pci-direct.h> | 8 | #include <asm/pci-direct.h> |
9 | #include <asm/acpi.h> | 9 | #include <asm/acpi.h> |
10 | #include <asm/apic.h> | ||
11 | 10 | ||
12 | static int __init check_bridge(int vendor, int device) | 11 | static int __init check_bridge(int vendor, int device) |
13 | { | 12 | { |
@@ -16,15 +15,6 @@ static int __init check_bridge(int vendor, int device) | |||
16 | if (vendor == PCI_VENDOR_ID_NVIDIA) { | 15 | if (vendor == PCI_VENDOR_ID_NVIDIA) { |
17 | acpi_skip_timer_override = 1; | 16 | acpi_skip_timer_override = 1; |
18 | } | 17 | } |
19 | #ifdef CONFIG_X86_LOCAL_APIC | ||
20 | /* | ||
21 | * ATI IXP chipsets get double timer interrupts. | ||
22 | * For now just do this for all ATI chipsets. | ||
23 | * FIXME: this needs to be checked for the non ACPI case too. | ||
24 | */ | ||
25 | if (vendor == PCI_VENDOR_ID_ATI) | ||
26 | disable_timer_pin_1 = 1; | ||
27 | #endif | ||
28 | return 0; | 18 | return 0; |
29 | } | 19 | } |
30 | 20 | ||
diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile index 7b1932d20f96..914933e9ec3d 100644 --- a/arch/i386/lib/Makefile +++ b/arch/i386/lib/Makefile | |||
@@ -7,4 +7,3 @@ lib-y = checksum.o delay.o usercopy.o getuser.o putuser.o memcpy.o strstr.o \ | |||
7 | bitops.o | 7 | bitops.o |
8 | 8 | ||
9 | lib-$(CONFIG_X86_USE_3DNOW) += mmx.o | 9 | lib-$(CONFIG_X86_USE_3DNOW) += mmx.o |
10 | lib-$(CONFIG_HAVE_DEC_LOCK) += dec_and_lock.o | ||
diff --git a/arch/i386/lib/dec_and_lock.c b/arch/i386/lib/dec_and_lock.c deleted file mode 100644 index 8b81b2524fa6..000000000000 --- a/arch/i386/lib/dec_and_lock.c +++ /dev/null | |||
@@ -1,42 +0,0 @@ | |||
1 | /* | ||
2 | * x86 version of "atomic_dec_and_lock()" using | ||
3 | * the atomic "cmpxchg" instruction. | ||
4 | * | ||
5 | * (For CPU's lacking cmpxchg, we use the slow | ||
6 | * generic version, and this one never even gets | ||
7 | * compiled). | ||
8 | */ | ||
9 | |||
10 | #include <linux/spinlock.h> | ||
11 | #include <linux/module.h> | ||
12 | #include <asm/atomic.h> | ||
13 | |||
14 | int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock) | ||
15 | { | ||
16 | int counter; | ||
17 | int newcount; | ||
18 | |||
19 | repeat: | ||
20 | counter = atomic_read(atomic); | ||
21 | newcount = counter-1; | ||
22 | |||
23 | if (!newcount) | ||
24 | goto slow_path; | ||
25 | |||
26 | asm volatile("lock; cmpxchgl %1,%2" | ||
27 | :"=a" (newcount) | ||
28 | :"r" (newcount), "m" (atomic->counter), "0" (counter)); | ||
29 | |||
30 | /* If the above failed, "eax" will have changed */ | ||
31 | if (newcount != counter) | ||
32 | goto repeat; | ||
33 | return 0; | ||
34 | |||
35 | slow_path: | ||
36 | spin_lock(lock); | ||
37 | if (atomic_dec_and_test(atomic)) | ||
38 | return 1; | ||
39 | spin_unlock(lock); | ||
40 | return 0; | ||
41 | } | ||
42 | EXPORT_SYMBOL(_atomic_dec_and_lock); | ||