/*
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* Copyright (C) 2005-2012 Philippe Gerum <rpm@xenomai.org>.
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*
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* Xenomai is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* Xenomai is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Xenomai; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _COBALT_ASM_GENERIC_WRAPPERS_H
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#include <linux/xenomai/wrappers.h>
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#define COBALT_BACKPORT(__sym) __cobalt_backport_ ##__sym
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/*
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* To keep the #ifdefery as readable as possible, please:
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*
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* - keep the conditional structure flat, no nesting (e.g. do not fold
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* the pre-3.11 conditions into the pre-3.14 ones).
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* - group all wrappers for a single kernel revision.
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* - list conditional blocks in order of kernel release, latest first
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* - identify the first kernel release for which the wrapper should
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* be defined, instead of testing the existence of a preprocessor
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* symbol, so that obsolete wrappers can be spotted.
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*/
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4,11,0)
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#define raw_copy_to_user(__to, __from, __n) __copy_to_user_inatomic(__to, __from, __n)
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#define raw_copy_from_user(__to, __from, __n) __copy_from_user_inatomic(__to, __from, __n)
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#define raw_put_user(__from, __to) __put_user_inatomic(__from, __to)
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#define raw_get_user(__to, __from) __get_user_inatomic(__to, __from)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
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#define in_ia32_syscall() (current_thread_info()->status & TS_COMPAT)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
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#define cobalt_gpiochip_dev(__gc) ((__gc)->dev)
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#else
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#define cobalt_gpiochip_dev(__gc) ((__gc)->parent)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)
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#define cobalt_get_restart_block(p) (&task_thread_info(p)->restart_block)
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#else
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#define cobalt_get_restart_block(p) (&(p)->restart_block)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0)
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#define user_msghdr msghdr
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,17,0)
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#include <linux/netdevice.h>
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#undef alloc_netdev
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#define alloc_netdev(sizeof_priv, name, name_assign_type, setup) \
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alloc_netdev_mqs(sizeof_priv, name, setup, 1, 1)
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#include <linux/trace_seq.h>
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static inline unsigned char *
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trace_seq_buffer_ptr(struct trace_seq *s)
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{
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return s->buffer + s->len;
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}
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#endif /* < 3.17 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,16,0)
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#define smp_mb__before_atomic() smp_mb()
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#define smp_mb__after_atomic() smp_mb()
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#endif /* < 3.16 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
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#define raw_cpu_ptr(v) __this_cpu_ptr(v)
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#endif /* < 3.15 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0)
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#include <linux/pci.h>
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#ifdef CONFIG_PCI
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#define pci_enable_msix_range COBALT_BACKPORT(pci_enable_msix_range)
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#ifdef CONFIG_PCI_MSI
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int pci_enable_msix_range(struct pci_dev *dev,
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struct msix_entry *entries,
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int minvec, int maxvec);
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#else /* !CONFIG_PCI_MSI */
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static inline
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int pci_enable_msix_range(struct pci_dev *dev,
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struct msix_entry *entries,
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int minvec, int maxvec)
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{
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return -ENOSYS;
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}
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#endif /* !CONFIG_PCI_MSI */
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#endif /* CONFIG_PCI */
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#endif /* < 3.14 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0)
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#include <linux/dma-mapping.h>
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#include <linux/hwmon.h>
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#define dma_set_mask_and_coherent COBALT_BACKPORT(dma_set_mask_and_coherent)
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static inline
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int dma_set_mask_and_coherent(struct device *dev, u64 mask)
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{
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int rc = dma_set_mask(dev, mask);
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if (rc == 0)
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dma_set_coherent_mask(dev, mask);
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return rc;
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}
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#ifdef CONFIG_HWMON
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#define hwmon_device_register_with_groups \
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COBALT_BACKPORT(hwmon_device_register_with_groups)
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struct device *
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hwmon_device_register_with_groups(struct device *dev, const char *name,
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void *drvdata,
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const struct attribute_group **groups);
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#define devm_hwmon_device_register_with_groups \
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COBALT_BACKPORT(devm_hwmon_device_register_with_groups)
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struct device *
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devm_hwmon_device_register_with_groups(struct device *dev, const char *name,
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void *drvdata,
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const struct attribute_group **groups);
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#endif /* !CONFIG_HWMON */
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#define reinit_completion(__x) INIT_COMPLETION(*(__x))
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#endif /* < 3.13 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0)
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#define DEVICE_ATTR_RW(_name) __ATTR_RW(_name)
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#define DEVICE_ATTR_RO(_name) __ATTR_RO(_name)
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#define DEVICE_ATTR_WO(_name) __ATTR_WO(_name)
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#endif /* < 3.11 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
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#error "Xenomai/cobalt requires Linux kernel 3.10 or above"
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#endif /* < 3.10 */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,0,0)
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#define __kernel_timex timex
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,1,0)
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#define old_timex32 compat_timex
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#define SO_RCVTIMEO_OLD SO_RCVTIMEO
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#define SO_SNDTIMEO_OLD SO_SNDTIMEO
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#endif
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0)
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#define mmiowb() do { } while (0)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0)
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#define __kernel_old_timeval timeval
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,4,208) || \
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(LINUX_VERSION_CODE >= KERNEL_VERSION(5,5,0) && \
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LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0))
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#define mmap_read_lock(__mm) down_read(&mm->mmap_sem)
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#define mmap_read_unlock(__mm) up_read(&mm->mmap_sem)
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#define mmap_write_lock(__mm) down_write(&mm->mmap_sem)
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#define mmap_write_unlock(__mm) up_write(&mm->mmap_sem)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
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#define DEFINE_PROC_OPS(__name, __open, __release, __read, __write) \
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struct file_operations __name = { \
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.open = (__open), \
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.release = (__release), \
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.read = (__read), \
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.write = (__write), \
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.llseek = seq_lseek, \
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}
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#else
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#define DEFINE_PROC_OPS(__name, __open, __release, __read, __write) \
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struct proc_ops __name = { \
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.proc_open = (__open), \
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.proc_release = (__release), \
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.proc_read = (__read), \
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.proc_write = (__write), \
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.proc_lseek = seq_lseek, \
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0)
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#define vmalloc_kernel(__size, __flags) __vmalloc(__size, GFP_KERNEL|__flags, PAGE_KERNEL)
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#else
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#define vmalloc_kernel(__size, __flags) __vmalloc(__size, GFP_KERNEL|__flags)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,7,0)
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#define pci_aer_clear_nonfatal_status pci_cleanup_aer_uncorrect_error_status
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#define old_timespec32 compat_timespec
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#define old_itimerspec32 compat_itimerspec
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#define old_timeval32 compat_timeval
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,8,0)
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#define vmalloc_kernel(__size, __flags) __vmalloc(__size, GFP_KERNEL|__flags, PAGE_KERNEL)
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#else
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#define vmalloc_kernel(__size, __flags) __vmalloc(__size, GFP_KERNEL|__flags)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,9,0)
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#define read_file_from_kernel(__file, __buf, __buf_size, __file_size, __id) \
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({ \
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loff_t ___file_size; \
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int __ret; \
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__ret = kernel_read_file(__file, __buf, &___file_size, \
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__buf_size, __id); \
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(*__file_size) = ___file_size; \
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__ret; \
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})
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#else
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#define read_file_from_kernel(__file, __buf, __buf_size, __file_size, __id) \
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kernel_read_file(__file, 0, __buf, __buf_size, __file_size, __id)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0)
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#if __has_attribute(__fallthrough__)
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# define fallthrough __attribute__((__fallthrough__))
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#else
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# define fallthrough do {} while (0) /* fallthrough */
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#endif
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,11,0)
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#define IRQ_WORK_INIT(_func) (struct irq_work) { \
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.flags = ATOMIC_INIT(0), \
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.func = (_func), \
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,14,0)
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#define close_fd(__ufd) __close_fd(current->files, __ufd)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,15,0) && \
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(LINUX_VERSION_CODE >= KERNEL_VERSION(5,11,0) || \
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LINUX_VERSION_CODE < KERNEL_VERSION(5,10,188)) && \
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(LINUX_VERSION_CODE >= KERNEL_VERSION(5,5,0) || \
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LINUX_VERSION_CODE < KERNEL_VERSION(5,4,251)) && \
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(LINUX_VERSION_CODE >= KERNEL_VERSION(4,20,0) || \
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LINUX_VERSION_CODE < KERNEL_VERSION(4,19,291))
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#define dev_addr_set(dev, addr) memcpy((dev)->dev_addr, addr, MAX_ADDR_LEN)
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#define eth_hw_addr_set(dev, addr) memcpy((dev)->dev_addr, addr, ETH_ALEN)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5,17,0)
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#define pde_data(i) PDE_DATA(i)
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#endif
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#endif /* _COBALT_ASM_GENERIC_WRAPPERS_H */
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