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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-01-27 20:14:02 +0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-01-27 20:14:02 +0400 |
commit | 6c02b7b1610f873888af20f291c07730889ff0f9 (patch) | |
tree | 1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/x86/include/asm/percpu.h | |
parent | 7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff) | |
parent | dcd6c92267155e70a94b3927bce681ce74b80d1f (diff) | |
download | linux-6c02b7b1610f873888af20f291c07730889ff0f9.tar.xz |
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits)
Linux 3.3-rc1
x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits
qnx4: don't leak ->BitMap on late failure exits
qnx4: reduce the insane nesting in qnx4_checkroot()
qnx4: di_fname is an array, for crying out loud...
KEYS: Permit key_serial() to be called with a const key pointer
keys: fix user_defined key sparse messages
ima: fix cred sparse warning
uml: fix compile for x86-64
MPILIB: Add a missing ENOMEM check
tpm: fix (ACPI S3) suspend regression
nvme: fix merge error due to change of 'make_request_fn' fn type
xen: using EXPORT_SYMBOL requires including export.h
gpio: tps65910: Use correct offset for gpio initialization
acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
intel_idle: Split up and provide per CPU initialization func
ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
tg3: Fix single-vector MSI-X code
openvswitch: Fix multipart datapath dumps.
ipv6: fix per device IP snmp counters
...
Diffstat (limited to 'arch/x86/include/asm/percpu.h')
-rw-r--r-- | arch/x86/include/asm/percpu.h | 77 |
1 files changed, 19 insertions, 58 deletions
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index 3470c9d0ebba..7a11910a63c4 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -414,22 +414,6 @@ do { \ #define this_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval) #define this_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_add_1(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_add_2(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_add_4(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_and_1(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_and_2(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_and_4(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_or_1(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_or_2(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_or_4(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xchg_1(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval) - #ifndef CONFIG_M386 #define __this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val) #define __this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val) @@ -445,29 +429,22 @@ do { \ #define this_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) #define this_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) #endif /* !CONFIG_M386 */ #ifdef CONFIG_X86_CMPXCHG64 -#define percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) \ +#define percpu_cmpxchg8b_double(pcp1, pcp2, o1, o2, n1, n2) \ ({ \ - char __ret; \ - typeof(o1) __o1 = o1; \ - typeof(o1) __n1 = n1; \ - typeof(o2) __o2 = o2; \ - typeof(o2) __n2 = n2; \ - typeof(o2) __dummy = n2; \ + bool __ret; \ + typeof(pcp1) __o1 = (o1), __n1 = (n1); \ + typeof(pcp2) __o2 = (o2), __n2 = (n2); \ asm volatile("cmpxchg8b "__percpu_arg(1)"\n\tsetz %0\n\t" \ - : "=a"(__ret), "=m" (pcp1), "=d"(__dummy) \ - : "b"(__n1), "c"(__n2), "a"(__o1), "d"(__o2)); \ + : "=a" (__ret), "+m" (pcp1), "+m" (pcp2), "+d" (__o2) \ + : "b" (__n1), "c" (__n2), "a" (__o1)); \ __ret; \ }) -#define __this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) -#define this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) -#define irqsafe_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) +#define __this_cpu_cmpxchg_double_4 percpu_cmpxchg8b_double +#define this_cpu_cmpxchg_double_4 percpu_cmpxchg8b_double #endif /* CONFIG_X86_CMPXCHG64 */ /* @@ -495,44 +472,28 @@ do { \ #define this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval) #define this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) -#define irqsafe_cpu_add_8(pcp, val) percpu_add_op((pcp), val) -#define irqsafe_cpu_and_8(pcp, val) percpu_to_op("and", (pcp), val) -#define irqsafe_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val) -#define irqsafe_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val) -#define irqsafe_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval) -#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) - /* * Pretty complex macro to generate cmpxchg16 instruction. The instruction * is not supported on early AMD64 processors so we must be able to emulate * it in software. The address used in the cmpxchg16 instruction must be * aligned to a 16 byte boundary. */ -#ifdef CONFIG_SMP -#define CMPXCHG16B_EMU_CALL "call this_cpu_cmpxchg16b_emu\n\t" ASM_NOP3 -#else -#define CMPXCHG16B_EMU_CALL "call this_cpu_cmpxchg16b_emu\n\t" ASM_NOP2 -#endif -#define percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) \ +#define percpu_cmpxchg16b_double(pcp1, pcp2, o1, o2, n1, n2) \ ({ \ - char __ret; \ - typeof(o1) __o1 = o1; \ - typeof(o1) __n1 = n1; \ - typeof(o2) __o2 = o2; \ - typeof(o2) __n2 = n2; \ - typeof(o2) __dummy; \ - alternative_io(CMPXCHG16B_EMU_CALL, \ - "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t", \ + bool __ret; \ + typeof(pcp1) __o1 = (o1), __n1 = (n1); \ + typeof(pcp2) __o2 = (o2), __n2 = (n2); \ + alternative_io("leaq %P1,%%rsi\n\tcall this_cpu_cmpxchg16b_emu\n\t", \ + "cmpxchg16b " __percpu_arg(1) "\n\tsetz %0\n\t", \ X86_FEATURE_CX16, \ - ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)), \ - "S" (&pcp1), "b"(__n1), "c"(__n2), \ - "a"(__o1), "d"(__o2) : "memory"); \ + ASM_OUTPUT2("=a" (__ret), "+m" (pcp1), \ + "+m" (pcp2), "+d" (__o2)), \ + "b" (__n1), "c" (__n2), "a" (__o1) : "rsi"); \ __ret; \ }) -#define __this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) -#define this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) -#define irqsafe_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) +#define __this_cpu_cmpxchg_double_8 percpu_cmpxchg16b_double +#define this_cpu_cmpxchg_double_8 percpu_cmpxchg16b_double #endif |