diff options
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/atomic.h | 3 | ||||
| -rw-r--r-- | include/asm-generic/barrier.h | 50 | ||||
| -rw-r--r-- | include/asm-generic/bitops/atomic.h | 2 | ||||
| -rw-r--r-- | include/asm-generic/cmpxchg.h | 87 | ||||
| -rw-r--r-- | include/asm-generic/exec.h | 19 | ||||
| -rw-r--r-- | include/asm-generic/gpio.h | 4 | ||||
| -rw-r--r-- | include/asm-generic/posix_types.h | 109 | ||||
| -rw-r--r-- | include/asm-generic/switch_to.h | 30 | ||||
| -rw-r--r-- | include/asm-generic/system.h | 141 | ||||
| -rw-r--r-- | include/asm-generic/unistd.h | 2 | ||||
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 35 |
11 files changed, 222 insertions, 260 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index e37963c1df4d..1ced6413ea03 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -15,6 +15,8 @@ #ifndef __ASM_GENERIC_ATOMIC_H #define __ASM_GENERIC_ATOMIC_H +#include <asm/cmpxchg.h> + #ifdef CONFIG_SMP /* Force people to define core atomics */ # if !defined(atomic_add_return) || !defined(atomic_sub_return) || \ @@ -52,7 +54,6 @@ #define atomic_set(v, i) (((v)->counter) = (i)) #include <linux/irqflags.h> -#include <asm/system.h> /** * atomic_add_return - add integer to atomic variable diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h new file mode 100644 index 000000000000..639d7a4d033b --- /dev/null +++ b/include/asm-generic/barrier.h @@ -0,0 +1,50 @@ +/* Generic barrier definitions, based on MN10300 definitions. + * + * It should be possible to use these on really simple architectures, + * but it serves more as a starting point for new ports. + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef __ASM_GENERIC_BARRIER_H +#define __ASM_GENERIC_BARRIER_H + +#ifndef __ASSEMBLY__ + +#define nop() asm volatile ("nop") + +/* + * Force strict CPU ordering. + * And yes, this is required on UP too when we're talking + * to devices. + * + * This implementation only contains a compiler barrier. + */ + +#define mb() asm volatile ("": : :"memory") +#define rmb() mb() +#define wmb() asm volatile ("": : :"memory") + +#ifdef CONFIG_SMP +#define smp_mb() mb() +#define smp_rmb() rmb() +#define smp_wmb() wmb() +#else +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() +#endif + +#define set_mb(var, value) do { var = value; mb(); } while (0) +#define set_wmb(var, value) do { var = value; wmb(); } while (0) + +#define read_barrier_depends() do {} while (0) +#define smp_read_barrier_depends() do {} while (0) + +#endif /* !__ASSEMBLY__ */ +#endif /* __ASM_GENERIC_BARRIER_H */ diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h index ecc44a8e2b44..9ae6c34dc191 100644 --- a/include/asm-generic/bitops/atomic.h +++ b/include/asm-generic/bitops/atomic.h @@ -2,7 +2,7 @@ #define _ASM_GENERIC_BITOPS_ATOMIC_H_ #include <asm/types.h> -#include <asm/system.h> +#include <linux/irqflags.h> #ifdef CONFIG_SMP #include <asm/spinlock.h> diff --git a/include/asm-generic/cmpxchg.h b/include/asm-generic/cmpxchg.h index 213ac6e8fe39..8a361834dc25 100644 --- a/include/asm-generic/cmpxchg.h +++ b/include/asm-generic/cmpxchg.h @@ -1,22 +1,97 @@ +/* + * Generic UP xchg and cmpxchg using interrupt disablement. Does not + * support SMP. + */ + #ifndef __ASM_GENERIC_CMPXCHG_H #define __ASM_GENERIC_CMPXCHG_H -/* - * Generic cmpxchg - * - * Uses the local cmpxchg. Does not support SMP. - */ #ifdef CONFIG_SMP #error "Cannot use generic cmpxchg on SMP" #endif +#include <linux/irqflags.h> + +#ifndef xchg + +/* + * This function doesn't exist, so you'll get a linker error if + * something tries to do an invalidly-sized xchg(). + */ +extern void __xchg_called_with_bad_pointer(void); + +static inline +unsigned long __xchg(unsigned long x, volatile void *ptr, int size) +{ + unsigned long ret, flags; + + switch (size) { + case 1: +#ifdef __xchg_u8 + return __xchg_u8(x, ptr); +#else + local_irq_save(flags); + ret = *(volatile u8 *)ptr; + *(volatile u8 *)ptr = x; + local_irq_restore(flags); + return ret; +#endif /* __xchg_u8 */ + + case 2: +#ifdef __xchg_u16 + return __xchg_u16(x, ptr); +#else + local_irq_save(flags); + ret = *(volatile u16 *)ptr; + *(volatile u16 *)ptr = x; + local_irq_restore(flags); + return ret; +#endif /* __xchg_u16 */ + + case 4: +#ifdef __xchg_u32 + return __xchg_u32(x, ptr); +#else + local_irq_save(flags); + ret = *(volatile u32 *)ptr; + *(volatile u32 *)ptr = x; + local_irq_restore(flags); + return ret; +#endif /* __xchg_u32 */ + +#ifdef CONFIG_64BIT + case 8: +#ifdef __xchg_u64 + return __xchg_u64(x, ptr); +#else + local_irq_save(flags); + ret = *(volatile u64 *)ptr; + *(volatile u64 *)ptr = x; + local_irq_restore(flags); + return ret; +#endif /* __xchg_u64 */ +#endif /* CONFIG_64BIT */ + + default: + __xchg_called_with_bad_pointer(); + return x; + } +} + +#define xchg(ptr, x) \ + ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr)))) + +#endif /* xchg */ + /* * Atomic compare and exchange. * * Do not define __HAVE_ARCH_CMPXCHG because we want to use it to check whether * a cmpxchg primitive faster than repeated local irq save/restore exists. */ +#include <asm-generic/cmpxchg-local.h> + #define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n)) #define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n)) -#endif +#endif /* __ASM_GENERIC_CMPXCHG_H */ diff --git a/include/asm-generic/exec.h b/include/asm-generic/exec.h new file mode 100644 index 000000000000..567766b0074a --- /dev/null +++ b/include/asm-generic/exec.h @@ -0,0 +1,19 @@ +/* Generic process execution definitions, based on MN10300 definitions. + * + * It should be possible to use these on really simple architectures, + * but it serves more as a starting point for new ports. + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef __ASM_GENERIC_EXEC_H +#define __ASM_GENERIC_EXEC_H + +#define arch_align_stack(x) (x) + +#endif /* __ASM_GENERIC_EXEC_H */ diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 1ff4e221cb4d..5f52690c3c8f 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -142,9 +142,9 @@ extern int __must_check gpiochip_reserve(int start, int ngpio); /* add/remove chips */ extern int gpiochip_add(struct gpio_chip *chip); extern int __must_check gpiochip_remove(struct gpio_chip *chip); -extern struct gpio_chip *gpiochip_find(void *data, +extern struct gpio_chip *gpiochip_find(const void *data, int (*match)(struct gpio_chip *chip, - void *data)); + const void *data)); /* Always use the library code for GPIO management calls, diff --git a/include/asm-generic/posix_types.h b/include/asm-generic/posix_types.h index 3dab00860e71..91d44bd4dde3 100644 --- a/include/asm-generic/posix_types.h +++ b/include/asm-generic/posix_types.h @@ -10,8 +10,13 @@ * architectures, so that you can override them. */ +#ifndef __kernel_long_t +typedef long __kernel_long_t; +typedef unsigned long __kernel_ulong_t; +#endif + #ifndef __kernel_ino_t -typedef unsigned long __kernel_ino_t; +typedef __kernel_ulong_t __kernel_ino_t; #endif #ifndef __kernel_mode_t @@ -19,7 +24,7 @@ typedef unsigned int __kernel_mode_t; #endif #ifndef __kernel_nlink_t -typedef unsigned long __kernel_nlink_t; +typedef __kernel_ulong_t __kernel_nlink_t; #endif #ifndef __kernel_pid_t @@ -36,7 +41,7 @@ typedef unsigned int __kernel_gid_t; #endif #ifndef __kernel_suseconds_t -typedef long __kernel_suseconds_t; +typedef __kernel_long_t __kernel_suseconds_t; #endif #ifndef __kernel_daddr_t @@ -44,8 +49,8 @@ typedef int __kernel_daddr_t; #endif #ifndef __kernel_uid32_t -typedef __kernel_uid_t __kernel_uid32_t; -typedef __kernel_gid_t __kernel_gid32_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; #endif #ifndef __kernel_old_uid_t @@ -67,99 +72,29 @@ typedef unsigned int __kernel_size_t; typedef int __kernel_ssize_t; typedef int __kernel_ptrdiff_t; #else -typedef unsigned long __kernel_size_t; -typedef long __kernel_ssize_t; -typedef long __kernel_ptrdiff_t; +typedef __kernel_ulong_t __kernel_size_t; +typedef __kernel_long_t __kernel_ssize_t; +typedef __kernel_long_t __kernel_ptrdiff_t; #endif #endif +#ifndef __kernel_fsid_t +typedef struct { + int val[2]; +} __kernel_fsid_t; +#endif + /* * anything below here should be completely generic */ -typedef long __kernel_off_t; +typedef __kernel_long_t __kernel_off_t; typedef long long __kernel_loff_t; -typedef long __kernel_time_t; -typedef long __kernel_clock_t; +typedef __kernel_long_t __kernel_time_t; +typedef __kernel_long_t __kernel_clock_t; typedef int __kernel_timer_t; typedef int __kernel_clockid_t; typedef char * __kernel_caddr_t; typedef unsigned short __kernel_uid16_t; typedef unsigned short __kernel_gid16_t; -typedef struct { - int val[2]; -} __kernel_fsid_t; - -#ifdef __KERNEL__ - -#undef __FD_SET -static inline void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp) -{ - unsigned long __tmp = __fd / __NFDBITS; - unsigned long __rem = __fd % __NFDBITS; - __fdsetp->fds_bits[__tmp] |= (1UL<<__rem); -} - -#undef __FD_CLR -static inline void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp) -{ - unsigned long __tmp = __fd / __NFDBITS; - unsigned long __rem = __fd % __NFDBITS; - __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem); -} - -#undef __FD_ISSET -static inline int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p) -{ - unsigned long __tmp = __fd / __NFDBITS; - unsigned long __rem = __fd % __NFDBITS; - return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0; -} - -/* - * This will unroll the loop for the normal constant case (8 ints, - * for a 256-bit fd_set) - */ -#undef __FD_ZERO -static inline void __FD_ZERO(__kernel_fd_set *__p) -{ - unsigned long *__tmp = __p->fds_bits; - int __i; - - if (__builtin_constant_p(__FDSET_LONGS)) { - switch (__FDSET_LONGS) { - case 16: - __tmp[ 0] = 0; __tmp[ 1] = 0; - __tmp[ 2] = 0; __tmp[ 3] = 0; - __tmp[ 4] = 0; __tmp[ 5] = 0; - __tmp[ 6] = 0; __tmp[ 7] = 0; - __tmp[ 8] = 0; __tmp[ 9] = 0; - __tmp[10] = 0; __tmp[11] = 0; - __tmp[12] = 0; __tmp[13] = 0; - __tmp[14] = 0; __tmp[15] = 0; - return; - - case 8: - __tmp[ 0] = 0; __tmp[ 1] = 0; - __tmp[ 2] = 0; __tmp[ 3] = 0; - __tmp[ 4] = 0; __tmp[ 5] = 0; - __tmp[ 6] = 0; __tmp[ 7] = 0; - return; - - case 4: - __tmp[ 0] = 0; __tmp[ 1] = 0; - __tmp[ 2] = 0; __tmp[ 3] = 0; - return; - } - } - __i = __FDSET_LONGS; - while (__i) { - __i--; - *__tmp = 0; - __tmp++; - } -} - -#endif /* __KERNEL__ */ - #endif /* __ASM_GENERIC_POSIX_TYPES_H */ diff --git a/include/asm-generic/switch_to.h b/include/asm-generic/switch_to.h new file mode 100644 index 000000000000..052c4ac04fd5 --- /dev/null +++ b/include/asm-generic/switch_to.h @@ -0,0 +1,30 @@ +/* Generic task switch macro wrapper, based on MN10300 definitions. + * + * It should be possible to use these on really simple architectures, + * but it serves more as a starting point for new ports. + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef __ASM_GENERIC_SWITCH_TO_H +#define __ASM_GENERIC_SWITCH_TO_H + +#include <linux/thread_info.h> + +/* + * Context switching is now performed out-of-line in switch_to.S + */ +extern struct task_struct *__switch_to(struct task_struct *, + struct task_struct *); + +#define switch_to(prev, next, last) \ + do { \ + ((last) = __switch_to((prev), (next))); \ + } while (0) + +#endif /* __ASM_GENERIC_SWITCH_TO_H */ diff --git a/include/asm-generic/system.h b/include/asm-generic/system.h deleted file mode 100644 index 215efa74f5a2..000000000000 --- a/include/asm-generic/system.h +++ /dev/null @@ -1,141 +0,0 @@ -/* Generic system definitions, based on MN10300 definitions. - * - * It should be possible to use these on really simple architectures, - * but it serves more as a starting point for new ports. - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef __ASM_GENERIC_SYSTEM_H -#define __ASM_GENERIC_SYSTEM_H - -#ifndef __ASSEMBLY__ - -#include <linux/types.h> -#include <linux/irqflags.h> - -#include <asm/cmpxchg-local.h> -#include <asm/cmpxchg.h> - -struct task_struct; - -/* context switching is now performed out-of-line in switch_to.S */ -extern struct task_struct *__switch_to(struct task_struct *, - struct task_struct *); -#define switch_to(prev, next, last) \ - do { \ - ((last) = __switch_to((prev), (next))); \ - } while (0) - -#define arch_align_stack(x) (x) - -#define nop() asm volatile ("nop") - -#endif /* !__ASSEMBLY__ */ - -/* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. - * - * This implementation only contains a compiler barrier. - */ - -#define mb() asm volatile ("": : :"memory") -#define rmb() mb() -#define wmb() asm volatile ("": : :"memory") - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#endif - -#define set_mb(var, value) do { var = value; mb(); } while (0) -#define set_wmb(var, value) do { var = value; wmb(); } while (0) - -#define read_barrier_depends() do {} while (0) -#define smp_read_barrier_depends() do {} while (0) - -/* - * we make sure local_irq_enable() doesn't cause priority inversion - */ -#ifndef __ASSEMBLY__ - -/* This function doesn't exist, so you'll get a linker error - * if something tries to do an invalid xchg(). */ -extern void __xchg_called_with_bad_pointer(void); - -static inline -unsigned long __xchg(unsigned long x, volatile void *ptr, int size) -{ - unsigned long ret, flags; - - switch (size) { - case 1: -#ifdef __xchg_u8 - return __xchg_u8(x, ptr); -#else - local_irq_save(flags); - ret = *(volatile u8 *)ptr; - *(volatile u8 *)ptr = x; - local_irq_restore(flags); - return ret; -#endif /* __xchg_u8 */ - - case 2: -#ifdef __xchg_u16 - return __xchg_u16(x, ptr); -#else - local_irq_save(flags); - ret = *(volatile u16 *)ptr; - *(volatile u16 *)ptr = x; - local_irq_restore(flags); - return ret; -#endif /* __xchg_u16 */ - - case 4: -#ifdef __xchg_u32 - return __xchg_u32(x, ptr); -#else - local_irq_save(flags); - ret = *(volatile u32 *)ptr; - *(volatile u32 *)ptr = x; - local_irq_restore(flags); - return ret; -#endif /* __xchg_u32 */ - -#ifdef CONFIG_64BIT - case 8: -#ifdef __xchg_u64 - return __xchg_u64(x, ptr); -#else - local_irq_save(flags); - ret = *(volatile u64 *)ptr; - *(volatile u64 *)ptr = x; - local_irq_restore(flags); - return ret; -#endif /* __xchg_u64 */ -#endif /* CONFIG_64BIT */ - - default: - __xchg_called_with_bad_pointer(); - return x; - } -} - -#define xchg(ptr, x) \ - ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr)))) - -#endif /* !__ASSEMBLY__ */ - -#endif /* __ASM_GENERIC_SYSTEM_H */ diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h index 2292d1af9d70..991ef01cd77e 100644 --- a/include/asm-generic/unistd.h +++ b/include/asm-generic/unistd.h @@ -218,7 +218,7 @@ __SC_COMP(__NR_pwritev, sys_pwritev, compat_sys_pwritev) /* fs/sendfile.c */ #define __NR3264_sendfile 71 -__SC_3264(__NR3264_sendfile, sys_sendfile64, sys_sendfile) +__SYSCALL(__NR3264_sendfile, sys_sendfile64) /* fs/select.c */ #define __NR_pselect6 72 diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 798603e8ec38..8aeadf6b553a 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -616,30 +616,23 @@ *(.init.setup) \ VMLINUX_SYMBOL(__setup_end) = .; -#define INITCALLS \ - *(.initcallearly.init) \ - VMLINUX_SYMBOL(__early_initcall_end) = .; \ - *(.initcall0.init) \ - *(.initcall0s.init) \ - *(.initcall1.init) \ - *(.initcall1s.init) \ - *(.initcall2.init) \ - *(.initcall2s.init) \ - *(.initcall3.init) \ - *(.initcall3s.init) \ - *(.initcall4.init) \ - *(.initcall4s.init) \ - *(.initcall5.init) \ - *(.initcall5s.init) \ - *(.initcallrootfs.init) \ - *(.initcall6.init) \ - *(.initcall6s.init) \ - *(.initcall7.init) \ - *(.initcall7s.init) +#define INIT_CALLS_LEVEL(level) \ + VMLINUX_SYMBOL(__initcall##level##_start) = .; \ + *(.initcall##level##.init) \ + *(.initcall##level##s.init) \ #define INIT_CALLS \ VMLINUX_SYMBOL(__initcall_start) = .; \ - INITCALLS \ + *(.initcallearly.init) \ + INIT_CALLS_LEVEL(0) \ + INIT_CALLS_LEVEL(1) \ + INIT_CALLS_LEVEL(2) \ + INIT_CALLS_LEVEL(3) \ + INIT_CALLS_LEVEL(4) \ + INIT_CALLS_LEVEL(5) \ + INIT_CALLS_LEVEL(rootfs) \ + INIT_CALLS_LEVEL(6) \ + INIT_CALLS_LEVEL(7) \ VMLINUX_SYMBOL(__initcall_end) = .; #define CON_INITCALL \ |