diff options
Diffstat (limited to 'include/asm-generic/percpu.h')
| -rw-r--r-- | include/asm-generic/percpu.h | 550 |
1 files changed, 494 insertions, 56 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index d17784ea37ff..6628670bcb90 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -1,10 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_GENERIC_PERCPU_H_ #define _ASM_GENERIC_PERCPU_H_ +#ifndef __ASSEMBLER__ + #include <linux/compiler.h> #include <linux/threads.h> #include <linux/percpu-defs.h> +/* + * __percpu_qual is the qualifier for the percpu named address space. + * + * Most arches use generic named address space for percpu variables but + * some arches define percpu variables in different named address space + * (on the x86 arch, percpu variable may be declared as being relative + * to the %fs or %gs segments using __seg_fs or __seg_gs named address + * space qualifier). + */ +#ifndef __percpu_qual +# define __percpu_qual +#endif + #ifdef CONFIG_SMP /* @@ -36,55 +52,17 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; #endif /* - * Add a offset to a pointer but keep the pointer as is. - * - * Only S390 provides its own means of moving the pointer. - */ -#ifndef SHIFT_PERCPU_PTR -/* Weird cast keeps both GCC and sparse happy. */ -#define SHIFT_PERCPU_PTR(__p, __offset) ({ \ - __verify_pcpu_ptr((__p)); \ - RELOC_HIDE((typeof(*(__p)) __kernel __force *)(__p), (__offset)); \ -}) -#endif - -/* - * A percpu variable may point to a discarded regions. The following are - * established ways to produce a usable pointer from the percpu variable - * offset. + * Arch may define arch_raw_cpu_ptr() to provide more efficient address + * translations for raw_cpu_ptr(). */ -#define per_cpu(var, cpu) \ - (*SHIFT_PERCPU_PTR(&(var), per_cpu_offset(cpu))) - -#ifndef __this_cpu_ptr -#define __this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset) -#endif -#ifdef CONFIG_DEBUG_PREEMPT -#define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset) -#else -#define this_cpu_ptr(ptr) __this_cpu_ptr(ptr) +#ifndef arch_raw_cpu_ptr +#define arch_raw_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset) #endif -#define __get_cpu_var(var) (*this_cpu_ptr(&(var))) -#define __raw_get_cpu_var(var) (*__this_cpu_ptr(&(var))) - #ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA extern void setup_per_cpu_areas(void); #endif -#else /* ! SMP */ - -#define VERIFY_PERCPU_PTR(__p) ({ \ - __verify_pcpu_ptr((__p)); \ - (typeof(*(__p)) __kernel __force *)(__p); \ -}) - -#define per_cpu(var, cpu) (*((void)(cpu), VERIFY_PERCPU_PTR(&(var)))) -#define __get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var))) -#define __raw_get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var))) -#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) -#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr) - #endif /* SMP */ #ifndef PER_CPU_BASE_SECTION @@ -95,31 +73,491 @@ extern void setup_per_cpu_areas(void); #endif #endif -#ifdef CONFIG_SMP +#ifndef PER_CPU_ATTRIBUTES +#define PER_CPU_ATTRIBUTES +#endif + +#define raw_cpu_generic_read(pcp) \ +({ \ + *raw_cpu_ptr(&(pcp)); \ +}) + +#define raw_cpu_generic_to_op(pcp, val, op) \ +do { \ + *raw_cpu_ptr(&(pcp)) op val; \ +} while (0) + +#define raw_cpu_generic_add_return(pcp, val) \ +({ \ + TYPEOF_UNQUAL(pcp) *__p = raw_cpu_ptr(&(pcp)); \ + \ + *__p += val; \ + *__p; \ +}) + +#define raw_cpu_generic_xchg(pcp, nval) \ +({ \ + TYPEOF_UNQUAL(pcp) *__p = raw_cpu_ptr(&(pcp)); \ + TYPEOF_UNQUAL(pcp) __ret; \ + __ret = *__p; \ + *__p = nval; \ + __ret; \ +}) + +#define __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, _cmpxchg) \ +({ \ + TYPEOF_UNQUAL(pcp) __val, __old = *(ovalp); \ + __val = _cmpxchg(pcp, __old, nval); \ + if (__val != __old) \ + *(ovalp) = __val; \ + __val == __old; \ +}) + +#define raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ +({ \ + TYPEOF_UNQUAL(pcp) *__p = raw_cpu_ptr(&(pcp)); \ + TYPEOF_UNQUAL(pcp) __val = *__p, ___old = *(ovalp); \ + bool __ret; \ + if (__val == ___old) { \ + *__p = nval; \ + __ret = true; \ + } else { \ + *(ovalp) = __val; \ + __ret = false; \ + } \ + __ret; \ +}) + +#define raw_cpu_generic_cmpxchg(pcp, oval, nval) \ +({ \ + TYPEOF_UNQUAL(pcp) __old = (oval); \ + raw_cpu_generic_try_cmpxchg(pcp, &__old, nval); \ + __old; \ +}) + +#define __this_cpu_generic_read_nopreempt(pcp) \ +({ \ + TYPEOF_UNQUAL(pcp) ___ret; \ + preempt_disable_notrace(); \ + ___ret = READ_ONCE(*raw_cpu_ptr(&(pcp))); \ + preempt_enable_notrace(); \ + ___ret; \ +}) + +#define __this_cpu_generic_read_noirq(pcp) \ +({ \ + TYPEOF_UNQUAL(pcp) ___ret; \ + unsigned long ___flags; \ + raw_local_irq_save(___flags); \ + ___ret = raw_cpu_generic_read(pcp); \ + raw_local_irq_restore(___flags); \ + ___ret; \ +}) + +#define this_cpu_generic_read(pcp) \ +({ \ + TYPEOF_UNQUAL(pcp) __ret; \ + if (__native_word(pcp)) \ + __ret = __this_cpu_generic_read_nopreempt(pcp); \ + else \ + __ret = __this_cpu_generic_read_noirq(pcp); \ + __ret; \ +}) + +#define this_cpu_generic_to_op(pcp, val, op) \ +do { \ + unsigned long __flags; \ + raw_local_irq_save(__flags); \ + raw_cpu_generic_to_op(pcp, val, op); \ + raw_local_irq_restore(__flags); \ +} while (0) + + +#define this_cpu_generic_add_return(pcp, val) \ +({ \ + TYPEOF_UNQUAL(pcp) __ret; \ + unsigned long __flags; \ + raw_local_irq_save(__flags); \ + __ret = raw_cpu_generic_add_return(pcp, val); \ + raw_local_irq_restore(__flags); \ + __ret; \ +}) + +#define this_cpu_generic_xchg(pcp, nval) \ +({ \ + TYPEOF_UNQUAL(pcp) __ret; \ + unsigned long __flags; \ + raw_local_irq_save(__flags); \ + __ret = raw_cpu_generic_xchg(pcp, nval); \ + raw_local_irq_restore(__flags); \ + __ret; \ +}) + +#define this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ +({ \ + bool __ret; \ + unsigned long __flags; \ + raw_local_irq_save(__flags); \ + __ret = raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval); \ + raw_local_irq_restore(__flags); \ + __ret; \ +}) + +#define this_cpu_generic_cmpxchg(pcp, oval, nval) \ +({ \ + TYPEOF_UNQUAL(pcp) __ret; \ + unsigned long __flags; \ + raw_local_irq_save(__flags); \ + __ret = raw_cpu_generic_cmpxchg(pcp, oval, nval); \ + raw_local_irq_restore(__flags); \ + __ret; \ +}) + +#ifndef raw_cpu_read_1 +#define raw_cpu_read_1(pcp) raw_cpu_generic_read(pcp) +#endif +#ifndef raw_cpu_read_2 +#define raw_cpu_read_2(pcp) raw_cpu_generic_read(pcp) +#endif +#ifndef raw_cpu_read_4 +#define raw_cpu_read_4(pcp) raw_cpu_generic_read(pcp) +#endif +#ifndef raw_cpu_read_8 +#define raw_cpu_read_8(pcp) raw_cpu_generic_read(pcp) +#endif + +#ifndef raw_cpu_write_1 +#define raw_cpu_write_1(pcp, val) raw_cpu_generic_to_op(pcp, val, =) +#endif +#ifndef raw_cpu_write_2 +#define raw_cpu_write_2(pcp, val) raw_cpu_generic_to_op(pcp, val, =) +#endif +#ifndef raw_cpu_write_4 +#define raw_cpu_write_4(pcp, val) raw_cpu_generic_to_op(pcp, val, =) +#endif +#ifndef raw_cpu_write_8 +#define raw_cpu_write_8(pcp, val) raw_cpu_generic_to_op(pcp, val, =) +#endif + +#ifndef raw_cpu_add_1 +#define raw_cpu_add_1(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) +#endif +#ifndef raw_cpu_add_2 +#define raw_cpu_add_2(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) +#endif +#ifndef raw_cpu_add_4 +#define raw_cpu_add_4(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) +#endif +#ifndef raw_cpu_add_8 +#define raw_cpu_add_8(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) +#endif + +#ifndef raw_cpu_and_1 +#define raw_cpu_and_1(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) +#endif +#ifndef raw_cpu_and_2 +#define raw_cpu_and_2(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) +#endif +#ifndef raw_cpu_and_4 +#define raw_cpu_and_4(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) +#endif +#ifndef raw_cpu_and_8 +#define raw_cpu_and_8(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) +#endif + +#ifndef raw_cpu_or_1 +#define raw_cpu_or_1(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) +#endif +#ifndef raw_cpu_or_2 +#define raw_cpu_or_2(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) +#endif +#ifndef raw_cpu_or_4 +#define raw_cpu_or_4(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) +#endif +#ifndef raw_cpu_or_8 +#define raw_cpu_or_8(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) +#endif + +#ifndef raw_cpu_add_return_1 +#define raw_cpu_add_return_1(pcp, val) raw_cpu_generic_add_return(pcp, val) +#endif +#ifndef raw_cpu_add_return_2 +#define raw_cpu_add_return_2(pcp, val) raw_cpu_generic_add_return(pcp, val) +#endif +#ifndef raw_cpu_add_return_4 +#define raw_cpu_add_return_4(pcp, val) raw_cpu_generic_add_return(pcp, val) +#endif +#ifndef raw_cpu_add_return_8 +#define raw_cpu_add_return_8(pcp, val) raw_cpu_generic_add_return(pcp, val) +#endif + +#ifndef raw_cpu_xchg_1 +#define raw_cpu_xchg_1(pcp, nval) raw_cpu_generic_xchg(pcp, nval) +#endif +#ifndef raw_cpu_xchg_2 +#define raw_cpu_xchg_2(pcp, nval) raw_cpu_generic_xchg(pcp, nval) +#endif +#ifndef raw_cpu_xchg_4 +#define raw_cpu_xchg_4(pcp, nval) raw_cpu_generic_xchg(pcp, nval) +#endif +#ifndef raw_cpu_xchg_8 +#define raw_cpu_xchg_8(pcp, nval) raw_cpu_generic_xchg(pcp, nval) +#endif -#ifdef MODULE -#define PER_CPU_SHARED_ALIGNED_SECTION "" -#define PER_CPU_ALIGNED_SECTION "" +#ifndef raw_cpu_try_cmpxchg_1 +#ifdef raw_cpu_cmpxchg_1 +#define raw_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_1) +#else +#define raw_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg_2 +#ifdef raw_cpu_cmpxchg_2 +#define raw_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_2) +#else +#define raw_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg_4 +#ifdef raw_cpu_cmpxchg_4 +#define raw_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_4) +#else +#define raw_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg_8 +#ifdef raw_cpu_cmpxchg_8 +#define raw_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_8) #else -#define PER_CPU_SHARED_ALIGNED_SECTION "..shared_aligned" -#define PER_CPU_ALIGNED_SECTION "..shared_aligned" +#define raw_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif #endif -#define PER_CPU_FIRST_SECTION "..first" +#ifndef raw_cpu_try_cmpxchg64 +#ifdef raw_cpu_cmpxchg64 +#define raw_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg64) +#else +#define raw_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg128 +#ifdef raw_cpu_cmpxchg128 +#define raw_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg128) #else +#define raw_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif -#define PER_CPU_SHARED_ALIGNED_SECTION "" -#define PER_CPU_ALIGNED_SECTION "..shared_aligned" -#define PER_CPU_FIRST_SECTION "" +#ifndef raw_cpu_cmpxchg_1 +#define raw_cpu_cmpxchg_1(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef raw_cpu_cmpxchg_2 +#define raw_cpu_cmpxchg_2(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef raw_cpu_cmpxchg_4 +#define raw_cpu_cmpxchg_4(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef raw_cpu_cmpxchg_8 +#define raw_cpu_cmpxchg_8(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef raw_cpu_cmpxchg64 +#define raw_cpu_cmpxchg64(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef raw_cpu_cmpxchg128 +#define raw_cpu_cmpxchg128(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) #endif -#ifndef PER_CPU_ATTRIBUTES -#define PER_CPU_ATTRIBUTES +#ifndef this_cpu_read_1 +#define this_cpu_read_1(pcp) this_cpu_generic_read(pcp) +#endif +#ifndef this_cpu_read_2 +#define this_cpu_read_2(pcp) this_cpu_generic_read(pcp) +#endif +#ifndef this_cpu_read_4 +#define this_cpu_read_4(pcp) this_cpu_generic_read(pcp) +#endif +#ifndef this_cpu_read_8 +#define this_cpu_read_8(pcp) this_cpu_generic_read(pcp) #endif -#ifndef PER_CPU_DEF_ATTRIBUTES -#define PER_CPU_DEF_ATTRIBUTES +#ifndef this_cpu_write_1 +#define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) +#endif +#ifndef this_cpu_write_2 +#define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) +#endif +#ifndef this_cpu_write_4 +#define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) +#endif +#ifndef this_cpu_write_8 +#define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) +#endif + +#ifndef this_cpu_add_1 +#define this_cpu_add_1(pcp, val) this_cpu_generic_to_op(pcp, val, +=) +#endif +#ifndef this_cpu_add_2 +#define this_cpu_add_2(pcp, val) this_cpu_generic_to_op(pcp, val, +=) +#endif +#ifndef this_cpu_add_4 +#define this_cpu_add_4(pcp, val) this_cpu_generic_to_op(pcp, val, +=) +#endif +#ifndef this_cpu_add_8 +#define this_cpu_add_8(pcp, val) this_cpu_generic_to_op(pcp, val, +=) +#endif + +#ifndef this_cpu_and_1 +#define this_cpu_and_1(pcp, val) this_cpu_generic_to_op(pcp, val, &=) +#endif +#ifndef this_cpu_and_2 +#define this_cpu_and_2(pcp, val) this_cpu_generic_to_op(pcp, val, &=) +#endif +#ifndef this_cpu_and_4 +#define this_cpu_and_4(pcp, val) this_cpu_generic_to_op(pcp, val, &=) +#endif +#ifndef this_cpu_and_8 +#define this_cpu_and_8(pcp, val) this_cpu_generic_to_op(pcp, val, &=) +#endif + +#ifndef this_cpu_or_1 +#define this_cpu_or_1(pcp, val) this_cpu_generic_to_op(pcp, val, |=) +#endif +#ifndef this_cpu_or_2 +#define this_cpu_or_2(pcp, val) this_cpu_generic_to_op(pcp, val, |=) +#endif +#ifndef this_cpu_or_4 +#define this_cpu_or_4(pcp, val) this_cpu_generic_to_op(pcp, val, |=) +#endif +#ifndef this_cpu_or_8 +#define this_cpu_or_8(pcp, val) this_cpu_generic_to_op(pcp, val, |=) +#endif + +#ifndef this_cpu_add_return_1 +#define this_cpu_add_return_1(pcp, val) this_cpu_generic_add_return(pcp, val) +#endif +#ifndef this_cpu_add_return_2 +#define this_cpu_add_return_2(pcp, val) this_cpu_generic_add_return(pcp, val) +#endif +#ifndef this_cpu_add_return_4 +#define this_cpu_add_return_4(pcp, val) this_cpu_generic_add_return(pcp, val) +#endif +#ifndef this_cpu_add_return_8 +#define this_cpu_add_return_8(pcp, val) this_cpu_generic_add_return(pcp, val) +#endif + +#ifndef this_cpu_xchg_1 +#define this_cpu_xchg_1(pcp, nval) this_cpu_generic_xchg(pcp, nval) +#endif +#ifndef this_cpu_xchg_2 +#define this_cpu_xchg_2(pcp, nval) this_cpu_generic_xchg(pcp, nval) +#endif +#ifndef this_cpu_xchg_4 +#define this_cpu_xchg_4(pcp, nval) this_cpu_generic_xchg(pcp, nval) +#endif +#ifndef this_cpu_xchg_8 +#define this_cpu_xchg_8(pcp, nval) this_cpu_generic_xchg(pcp, nval) +#endif + +#ifndef this_cpu_try_cmpxchg_1 +#ifdef this_cpu_cmpxchg_1 +#define this_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_1) +#else +#define this_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg_2 +#ifdef this_cpu_cmpxchg_2 +#define this_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_2) +#else +#define this_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg_4 +#ifdef this_cpu_cmpxchg_4 +#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_4) +#else +#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg_8 +#ifdef this_cpu_cmpxchg_8 +#define this_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_8) +#else +#define this_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif + +#ifndef this_cpu_try_cmpxchg64 +#ifdef this_cpu_cmpxchg64 +#define this_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) +#else +#define this_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg128 +#ifdef this_cpu_cmpxchg128 +#define this_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg128) +#else +#define this_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif + +#ifndef this_cpu_cmpxchg_1 +#define this_cpu_cmpxchg_1(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef this_cpu_cmpxchg_2 +#define this_cpu_cmpxchg_2(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef this_cpu_cmpxchg_4 +#define this_cpu_cmpxchg_4(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef this_cpu_cmpxchg_8 +#define this_cpu_cmpxchg_8(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) +#endif + +#ifndef this_cpu_cmpxchg64 +#define this_cpu_cmpxchg64(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) +#endif +#ifndef this_cpu_cmpxchg128 +#define this_cpu_cmpxchg128(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) #endif +#endif /* __ASSEMBLER__ */ #endif /* _ASM_GENERIC_PERCPU_H_ */ |