/usr/include/xenomai/asm-powerpc/wrappers.h is in libxenomai-dev 2.6.4+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2005 Philippe Gerum <rpm@xenomai.org>.
*
* Xenomai is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* Xenomai is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Xenomai; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _XENO_ASM_POWERPC_WRAPPERS_H
#define _XENO_ASM_POWERPC_WRAPPERS_H
#ifndef __KERNEL__
#error "Pure kernel header included from user-space!"
#endif
#include <linux/version.h>
#include <asm/uaccess.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#include <asm/mmu.h>
#define CONFIG_MMU 1
#define wrap_phys_mem_prot(filp,pfn,size,prot) \
__pgprot(pgprot_val(prot) | _PAGE_NO_CACHE | _PAGE_GUARDED)
#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
#define show_stack(p,sp) print_backtrace(sp) /* Only works for current. */
#define wrap_range_ok(task,addr,size) \
(segment_eq((task)->thread.fs, KERNEL_DS) || __user_ok((unsigned long)(addr),(size)))
/*
* fls: find last (most-significant) bit set.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
static __inline__ int fls(unsigned int x)
{
int lz;
asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
return 32 - lz;
}
typedef phys_addr_t resource_size_t;
#define setbits8(_addr, _v) out_8((_addr), in_8(_addr) | (_v))
#define clrbits8(_addr, _v) out_8((_addr), in_8(_addr) & ~(_v))
#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) */
#define wrap_phys_mem_prot(filp,pfn,size,prot) \
phys_mem_access_prot(filp, pfn, size, prot)
#ifdef CONFIG_PPC64
#define wrap_range_ok(task,addr,size) \
__access_ok(((__force unsigned long)(addr)),(size),(task->thread.fs))
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
#define arch_leave_lazy_mmu_mode() flush_tlb_pending()
#endif
#else /* !CONFIG_PPC64 */
#define wrap_range_ok(task,addr,size) \
((unsigned long)(addr) <= (task)->thread.fs.seg \
&& ((size) == 0 || (size) - 1 <= (task)->thread.fs.seg - (unsigned long)(addr)))
#endif /* !CONFIG_PPC64 */
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) */
#include <asm-generic/xenomai/wrappers.h> /* Read the generic portion. */
#include <linux/interrupt.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)
#define wrap_put_user(src,dstP) __put_user(src,dstP)
#define wrap_get_user(dst,srcP) __get_user(dst,srcP)
#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15) */
/* from linux/include/asm-powerpc/uaccess.h */
#define wrap_get_user(x, ptr) \
({ \
int __gu_size = sizeof(*(ptr)); \
long __gu_err; \
unsigned long __gu_val; \
const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
__chk_user_ptr(ptr); \
__get_user_size(__gu_val, __gu_addr, gu_size, __gu_err);\
(x) = (__typeof__(*(ptr)))__gu_val; \
__gu_err; \
})
#define wrap_put_user(x, ptr) \
({ \
int __pu_size = sizeof(*(ptr)); \
long __pu_err; \
__typeof__(*(ptr)) __user *__pu_addr = (ptr); \
__chk_user_ptr(ptr); \
__put_user_size((__typeof__(*(ptr)))(x), \
__pu_addr, __pu_size, __pu_err); \
__pu_err; \
})
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15) */
#define rthal_irq_desc_status(irq) (rthal_irq_descp(irq)->status)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
#define rthal_irq_handlerp(irq) rthal_irq_descp(irq)->handler
#else
#define rthal_irq_handlerp(irq) rthal_irq_descp(irq)->chip
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
typedef irqreturn_t (*rthal_irq_host_handler_t)(int irq,
void *dev_id,
struct pt_regs *regs);
#else
typedef irq_handler_t rthal_irq_host_handler_t;
#endif
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,19)
#define rthal_irq_chip_enable(irq) \
({ \
int __err__ = 0; \
if (rthal_irq_handlerp(irq) == NULL || \
rthal_irq_handlerp(irq)->enable == NULL) \
__err__ = -ENODEV; \
else \
rthal_irq_handlerp(irq)->enable(irq); \
__err__; \
})
#define rthal_irq_chip_disable(irq) \
({ \
int __err__ = 0; \
if (rthal_irq_handlerp(irq) == NULL || \
rthal_irq_handlerp(irq)->disable == NULL) \
__err__ = -ENODEV; \
else \
rthal_irq_handlerp(irq)->disable(irq); \
__err__; \
})
#define rthal_irq_chip_end(irq) \
({ \
int __err__ = 0; \
if (rthal_irq_handlerp(irq) != NULL) { \
if (rthal_irq_handlerp(irq)->end != NULL) \
rthal_irq_handlerp(irq)->end(irq); \
else if (rthal_irq_handlerp(irq)->enable != NULL) \
rthal_irq_handlerp(irq)->enable(irq); \
} else \
__err__ = -ENODEV; \
__err__; \
})
#else /* > 2.6.19 */
#if !defined(CONFIG_GENERIC_HARDIRQS) \
|| LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
#define rthal_irq_chip_enable(irq) \
({ \
int __err__ = 0; \
if (unlikely(rthal_irq_handlerp(irq)->unmask == NULL)) \
__err__ = -ENODEV; \
else \
rthal_irq_handlerp(irq)->unmask(irq); \
__err__; \
})
#define rthal_irq_chip_disable(irq) \
({ \
int __err__ = 0; \
if (rthal_irq_handlerp(irq)->mask == NULL) \
__err__ = -ENODEV; \
else \
rthal_irq_handlerp(irq)->mask(irq); \
__err__; \
})
#endif
#define rthal_irq_chip_end(irq) ({ rthal_irq_descp(irq)->ipipe_end(irq, rthal_irq_descp(irq)); 0; })
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31)
#define mpc5xxx_get_bus_frequency(node) mpc52xx_find_ipb_freq(node)
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
#define of_device platform_device
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)
#define of_platform_driver platform_driver
#define of_register_platform_driver platform_driver_register
#define of_unregister_platform_driver platform_driver_unregister
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
#define wrap_strncpy_from_user(dstP, srcP, n) strncpy_from_user(dstP, srcP, n)
#else
#define wrap_strncpy_from_user(dstP, srcP, n) __strncpy_from_user(dstP, srcP, n)
#endif
#endif /* _XENO_ASM_POWERPC_WRAPPERS_H */
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