X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fpercpu.h;h=cf5efbcf716c8cecf74d4d315e2619f6fdcfa1f4;hb=f98bfbd78c37c5946cc53089da32a5f741efdeb7;hp=5451eb1e781d37f67d29ab2e140bef34182fec8e;hpb=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 5451eb1..cf5efbc 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -1,61 +1,628 @@ #ifndef __LINUX_PERCPU_H #define __LINUX_PERCPU_H -#include /* For preempt_disable() */ + +#include #include /* For kmalloc() */ #include -#include /* For memset() */ +#include +#include + #include -/* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */ +/* enough to cover all DEFINE_PER_CPUs in modules */ +#ifdef CONFIG_MODULES +#define PERCPU_MODULE_RESERVE (8 << 10) +#else +#define PERCPU_MODULE_RESERVE 0 +#endif + #ifndef PERCPU_ENOUGH_ROOM -#define PERCPU_ENOUGH_ROOM 32768 +#define PERCPU_ENOUGH_ROOM \ + (ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \ + PERCPU_MODULE_RESERVE) #endif -/* Must be an lvalue. */ -#define get_cpu_var(var) (*({ preempt_disable(); &__get_cpu_var(var); })) +/* + * Must be an lvalue. Since @var must be a simple identifier, + * we force a syntax error here if it isn't. + */ +#define get_cpu_var(var) (*({ \ + extern int simple_identifier_##var(void); \ + preempt_disable(); \ + &__get_cpu_var(var); })) #define put_cpu_var(var) preempt_enable() #ifdef CONFIG_SMP -struct percpu_data { - void *ptrs[NR_CPUS]; - void *blkp; +/* minimum unit size, also is the maximum supported allocation size */ +#define PCPU_MIN_UNIT_SIZE PFN_ALIGN(64 << 10) + +/* + * PERCPU_DYNAMIC_RESERVE indicates the amount of free area to piggy + * back on the first chunk for dynamic percpu allocation if arch is + * manually allocating and mapping it for faster access (as a part of + * large page mapping for example). + * + * The following values give between one and two pages of free space + * after typical minimal boot (2-way SMP, single disk and NIC) with + * both defconfig and a distro config on x86_64 and 32. More + * intelligent way to determine this would be nice. + */ +#if BITS_PER_LONG > 32 +#define PERCPU_DYNAMIC_RESERVE (20 << 10) +#else +#define PERCPU_DYNAMIC_RESERVE (12 << 10) +#endif + +extern void *pcpu_base_addr; +extern const unsigned long *pcpu_unit_offsets; + +struct pcpu_group_info { + int nr_units; /* aligned # of units */ + unsigned long base_offset; /* base address offset */ + unsigned int *cpu_map; /* unit->cpu map, empty + * entries contain NR_CPUS */ }; -/* - * Use this to get to a cpu's version of the per-cpu object allocated using - * alloc_percpu. Non-atomic access to the current CPU's version should - * probably be combined with get_cpu()/put_cpu(). - */ -#define per_cpu_ptr(ptr, cpu) \ -({ \ - struct percpu_data *__p = (struct percpu_data *)~(unsigned long)(ptr); \ - (__typeof__(ptr))__p->ptrs[(cpu)]; \ -}) +struct pcpu_alloc_info { + size_t static_size; + size_t reserved_size; + size_t dyn_size; + size_t unit_size; + size_t atom_size; + size_t alloc_size; + size_t __ai_size; /* internal, don't use */ + int nr_groups; /* 0 if grouping unnecessary */ + struct pcpu_group_info groups[]; +}; + +enum pcpu_fc { + PCPU_FC_AUTO, + PCPU_FC_EMBED, + PCPU_FC_PAGE, + + PCPU_FC_NR, +}; +extern const char *pcpu_fc_names[PCPU_FC_NR]; + +extern enum pcpu_fc pcpu_chosen_fc; +typedef void * (*pcpu_fc_alloc_fn_t)(unsigned int cpu, size_t size, + size_t align); +typedef void (*pcpu_fc_free_fn_t)(void *ptr, size_t size); +typedef void (*pcpu_fc_populate_pte_fn_t)(unsigned long addr); +typedef int (pcpu_fc_cpu_distance_fn_t)(unsigned int from, unsigned int to); + +extern struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups, + int nr_units); +extern void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai); + +extern struct pcpu_alloc_info * __init pcpu_build_alloc_info( + size_t reserved_size, ssize_t dyn_size, + size_t atom_size, + pcpu_fc_cpu_distance_fn_t cpu_distance_fn); + +extern int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, + void *base_addr); + +#ifdef CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK +extern int __init pcpu_embed_first_chunk(size_t reserved_size, ssize_t dyn_size, + size_t atom_size, + pcpu_fc_cpu_distance_fn_t cpu_distance_fn, + pcpu_fc_alloc_fn_t alloc_fn, + pcpu_fc_free_fn_t free_fn); +#endif + +#ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK +extern int __init pcpu_page_first_chunk(size_t reserved_size, + pcpu_fc_alloc_fn_t alloc_fn, + pcpu_fc_free_fn_t free_fn, + pcpu_fc_populate_pte_fn_t populate_pte_fn); +#endif + +/* + * Use this to get to a cpu's version of the per-cpu object + * dynamically allocated. Non-atomic access to the current CPU's + * version should probably be combined with get_cpu()/put_cpu(). + */ +#define per_cpu_ptr(ptr, cpu) SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))) + +extern void *__alloc_reserved_percpu(size_t size, size_t align); extern void *__alloc_percpu(size_t size, size_t align); -extern void free_percpu(const void *); +extern void free_percpu(void *__pdata); +extern phys_addr_t per_cpu_ptr_to_phys(void *addr); + +#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA +extern void __init setup_per_cpu_areas(void); +#endif #else /* CONFIG_SMP */ -#define per_cpu_ptr(ptr, cpu) (ptr) +#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) static inline void *__alloc_percpu(size_t size, size_t align) { - void *ret = kmalloc(size, GFP_KERNEL); - if (ret) - memset(ret, 0, size); - return ret; + /* + * Can't easily make larger alignment work with kmalloc. WARN + * on it. Larger alignment should only be used for module + * percpu sections on SMP for which this path isn't used. + */ + WARN_ON_ONCE(align > SMP_CACHE_BYTES); + return kzalloc(size, GFP_KERNEL); } -static inline void free_percpu(const void *ptr) -{ - kfree(ptr); + +static inline void free_percpu(void *p) +{ + kfree(p); +} + +static inline phys_addr_t per_cpu_ptr_to_phys(void *addr) +{ + return __pa(addr); +} + +static inline void __init setup_per_cpu_areas(void) { } + +static inline void *pcpu_lpage_remapped(void *kaddr) +{ + return NULL; } #endif /* CONFIG_SMP */ -/* Simple wrapper for the common case: zeros memory. */ -#define alloc_percpu(type) \ - ((type *)(__alloc_percpu(sizeof(type), __alignof__(type)))) +#define alloc_percpu(type) \ + (typeof(type) *)__alloc_percpu(sizeof(type), __alignof__(type)) + +/* + * Optional methods for optimized non-lvalue per-cpu variable access. + * + * @var can be a percpu variable or a field of it and its size should + * equal char, int or long. percpu_read() evaluates to a lvalue and + * all others to void. + * + * These operations are guaranteed to be atomic w.r.t. preemption. + * The generic versions use plain get/put_cpu_var(). Archs are + * encouraged to implement single-instruction alternatives which don't + * require preemption protection. + */ +#ifndef percpu_read +# define percpu_read(var) \ + ({ \ + typeof(per_cpu_var(var)) __tmp_var__; \ + __tmp_var__ = get_cpu_var(var); \ + put_cpu_var(var); \ + __tmp_var__; \ + }) +#endif + +#define __percpu_generic_to_op(var, val, op) \ +do { \ + get_cpu_var(var) op val; \ + put_cpu_var(var); \ +} while (0) + +#ifndef percpu_write +# define percpu_write(var, val) __percpu_generic_to_op(var, (val), =) +#endif + +#ifndef percpu_add +# define percpu_add(var, val) __percpu_generic_to_op(var, (val), +=) +#endif + +#ifndef percpu_sub +# define percpu_sub(var, val) __percpu_generic_to_op(var, (val), -=) +#endif + +#ifndef percpu_and +# define percpu_and(var, val) __percpu_generic_to_op(var, (val), &=) +#endif + +#ifndef percpu_or +# define percpu_or(var, val) __percpu_generic_to_op(var, (val), |=) +#endif + +#ifndef percpu_xor +# define percpu_xor(var, val) __percpu_generic_to_op(var, (val), ^=) +#endif + +/* + * Branching function to split up a function into a set of functions that + * are called for different scalar sizes of the objects handled. + */ + +extern void __bad_size_call_parameter(void); + +#define __pcpu_size_call_return(stem, variable) \ +({ typeof(variable) pscr_ret__; \ + switch(sizeof(variable)) { \ + case 1: pscr_ret__ = stem##1(variable);break; \ + case 2: pscr_ret__ = stem##2(variable);break; \ + case 4: pscr_ret__ = stem##4(variable);break; \ + case 8: pscr_ret__ = stem##8(variable);break; \ + default: \ + __bad_size_call_parameter();break; \ + } \ + pscr_ret__; \ +}) + +#define __pcpu_size_call(stem, variable, ...) \ +do { \ + switch(sizeof(variable)) { \ + case 1: stem##1(variable, __VA_ARGS__);break; \ + case 2: stem##2(variable, __VA_ARGS__);break; \ + case 4: stem##4(variable, __VA_ARGS__);break; \ + case 8: stem##8(variable, __VA_ARGS__);break; \ + default: \ + __bad_size_call_parameter();break; \ + } \ +} while (0) + +/* + * Optimized manipulation for memory allocated through the per cpu + * allocator or for addresses of per cpu variables (can be determined + * using per_cpu_var(xx). + * + * These operation guarantee exclusivity of access for other operations + * on the *same* processor. The assumption is that per cpu data is only + * accessed by a single processor instance (the current one). + * + * The first group is used for accesses that must be done in a + * preemption safe way since we know that the context is not preempt + * safe. Interrupts may occur. If the interrupt modifies the variable + * too then RMW actions will not be reliable. + * + * The arch code can provide optimized functions in two ways: + * + * 1. Override the function completely. F.e. define this_cpu_add(). + * The arch must then ensure that the various scalar format passed + * are handled correctly. + * + * 2. Provide functions for certain scalar sizes. F.e. provide + * this_cpu_add_2() to provide per cpu atomic operations for 2 byte + * sized RMW actions. If arch code does not provide operations for + * a scalar size then the fallback in the generic code will be + * used. + */ + +#define _this_cpu_generic_read(pcp) \ +({ typeof(pcp) ret__; \ + preempt_disable(); \ + ret__ = *this_cpu_ptr(&(pcp)); \ + preempt_enable(); \ + ret__; \ +}) + +#ifndef this_cpu_read +# 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 +# define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, (pcp)) +#endif + +#define _this_cpu_generic_to_op(pcp, val, op) \ +do { \ + preempt_disable(); \ + *__this_cpu_ptr(&pcp) op val; \ + preempt_enable(); \ +} while (0) + +#ifndef this_cpu_write +# 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 +# define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, (pcp), (val)) +#endif + +#ifndef this_cpu_add +# 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 +# define this_cpu_add(pcp, val) __pcpu_size_call(this_cpu_add_, (pcp), (val)) +#endif + +#ifndef this_cpu_sub +# define this_cpu_sub(pcp, val) this_cpu_add((pcp), -(val)) +#endif + +#ifndef this_cpu_inc +# define this_cpu_inc(pcp) this_cpu_add((pcp), 1) +#endif + +#ifndef this_cpu_dec +# define this_cpu_dec(pcp) this_cpu_sub((pcp), 1) +#endif + +#ifndef this_cpu_and +# 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 +# define this_cpu_and(pcp, val) __pcpu_size_call(this_cpu_and_, (pcp), (val)) +#endif + +#ifndef this_cpu_or +# 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 +# define this_cpu_or(pcp, val) __pcpu_size_call(this_cpu_or_, (pcp), (val)) +#endif + +#ifndef this_cpu_xor +# ifndef this_cpu_xor_1 +# define this_cpu_xor_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef this_cpu_xor_2 +# define this_cpu_xor_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef this_cpu_xor_4 +# define this_cpu_xor_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef this_cpu_xor_8 +# define this_cpu_xor_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# define this_cpu_xor(pcp, val) __pcpu_size_call(this_cpu_or_, (pcp), (val)) +#endif + +/* + * Generic percpu operations that do not require preemption handling. + * Either we do not care about races or the caller has the + * responsibility of handling preemptions issues. Arch code can still + * override these instructions since the arch per cpu code may be more + * efficient and may actually get race freeness for free (that is the + * case for x86 for example). + * + * If there is no other protection through preempt disable and/or + * disabling interupts then one of these RMW operations can show unexpected + * behavior because the execution thread was rescheduled on another processor + * or an interrupt occurred and the same percpu variable was modified from + * the interrupt context. + */ +#ifndef __this_cpu_read +# ifndef __this_cpu_read_1 +# define __this_cpu_read_1(pcp) (*__this_cpu_ptr(&(pcp))) +# endif +# ifndef __this_cpu_read_2 +# define __this_cpu_read_2(pcp) (*__this_cpu_ptr(&(pcp))) +# endif +# ifndef __this_cpu_read_4 +# define __this_cpu_read_4(pcp) (*__this_cpu_ptr(&(pcp))) +# endif +# ifndef __this_cpu_read_8 +# define __this_cpu_read_8(pcp) (*__this_cpu_ptr(&(pcp))) +# endif +# define __this_cpu_read(pcp) __pcpu_size_call_return(__this_cpu_read_, (pcp)) +#endif + +#define __this_cpu_generic_to_op(pcp, val, op) \ +do { \ + *__this_cpu_ptr(&(pcp)) op val; \ +} while (0) + +#ifndef __this_cpu_write +# 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 +# define __this_cpu_write(pcp, val) __pcpu_size_call(__this_cpu_write_, (pcp), (val)) +#endif + +#ifndef __this_cpu_add +# 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 +# define __this_cpu_add(pcp, val) __pcpu_size_call(__this_cpu_add_, (pcp), (val)) +#endif + +#ifndef __this_cpu_sub +# define __this_cpu_sub(pcp, val) __this_cpu_add((pcp), -(val)) +#endif + +#ifndef __this_cpu_inc +# define __this_cpu_inc(pcp) __this_cpu_add((pcp), 1) +#endif + +#ifndef __this_cpu_dec +# define __this_cpu_dec(pcp) __this_cpu_sub((pcp), 1) +#endif + +#ifndef __this_cpu_and +# 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 +# define __this_cpu_and(pcp, val) __pcpu_size_call(__this_cpu_and_, (pcp), (val)) +#endif + +#ifndef __this_cpu_or +# 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 +# define __this_cpu_or(pcp, val) __pcpu_size_call(__this_cpu_or_, (pcp), (val)) +#endif + +#ifndef __this_cpu_xor +# ifndef __this_cpu_xor_1 +# define __this_cpu_xor_1(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef __this_cpu_xor_2 +# define __this_cpu_xor_2(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef __this_cpu_xor_4 +# define __this_cpu_xor_4(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef __this_cpu_xor_8 +# define __this_cpu_xor_8(pcp, val) __this_cpu_generic_to_op((pcp), (val), ^=) +# endif +# define __this_cpu_xor(pcp, val) __pcpu_size_call(__this_cpu_xor_, (pcp), (val)) +#endif + +/* + * IRQ safe versions of the per cpu RMW operations. Note that these operations + * are *not* safe against modification of the same variable from another + * processors (which one gets when using regular atomic operations) + . They are guaranteed to be atomic vs. local interrupts and + * preemption only. + */ +#define irqsafe_cpu_generic_to_op(pcp, val, op) \ +do { \ + unsigned long flags; \ + local_irq_save(flags); \ + *__this_cpu_ptr(&(pcp)) op val; \ + local_irq_restore(flags); \ +} while (0) + +#ifndef irqsafe_cpu_add +# ifndef irqsafe_cpu_add_1 +# define irqsafe_cpu_add_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) +# endif +# ifndef irqsafe_cpu_add_2 +# define irqsafe_cpu_add_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) +# endif +# ifndef irqsafe_cpu_add_4 +# define irqsafe_cpu_add_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) +# endif +# ifndef irqsafe_cpu_add_8 +# define irqsafe_cpu_add_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=) +# endif +# define irqsafe_cpu_add(pcp, val) __pcpu_size_call(irqsafe_cpu_add_, (pcp), (val)) +#endif + +#ifndef irqsafe_cpu_sub +# define irqsafe_cpu_sub(pcp, val) irqsafe_cpu_add((pcp), -(val)) +#endif + +#ifndef irqsafe_cpu_inc +# define irqsafe_cpu_inc(pcp) irqsafe_cpu_add((pcp), 1) +#endif + +#ifndef irqsafe_cpu_dec +# define irqsafe_cpu_dec(pcp) irqsafe_cpu_sub((pcp), 1) +#endif + +#ifndef irqsafe_cpu_and +# ifndef irqsafe_cpu_and_1 +# define irqsafe_cpu_and_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) +# endif +# ifndef irqsafe_cpu_and_2 +# define irqsafe_cpu_and_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) +# endif +# ifndef irqsafe_cpu_and_4 +# define irqsafe_cpu_and_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) +# endif +# ifndef irqsafe_cpu_and_8 +# define irqsafe_cpu_and_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=) +# endif +# define irqsafe_cpu_and(pcp, val) __pcpu_size_call(irqsafe_cpu_and_, (val)) +#endif + +#ifndef irqsafe_cpu_or +# ifndef irqsafe_cpu_or_1 +# define irqsafe_cpu_or_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) +# endif +# ifndef irqsafe_cpu_or_2 +# define irqsafe_cpu_or_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) +# endif +# ifndef irqsafe_cpu_or_4 +# define irqsafe_cpu_or_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) +# endif +# ifndef irqsafe_cpu_or_8 +# define irqsafe_cpu_or_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=) +# endif +# define irqsafe_cpu_or(pcp, val) __pcpu_size_call(irqsafe_cpu_or_, (val)) +#endif + +#ifndef irqsafe_cpu_xor +# ifndef irqsafe_cpu_xor_1 +# define irqsafe_cpu_xor_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef irqsafe_cpu_xor_2 +# define irqsafe_cpu_xor_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef irqsafe_cpu_xor_4 +# define irqsafe_cpu_xor_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) +# endif +# ifndef irqsafe_cpu_xor_8 +# define irqsafe_cpu_xor_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=) +# endif +# define irqsafe_cpu_xor(pcp, val) __pcpu_size_call(irqsafe_cpu_xor_, (val)) +#endif #endif /* __LINUX_PERCPU_H */