/*************************************************************************/ /*!
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@File services/server/env/linux/kernel_compatibility.h
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@Title Kernel versions compatibility macros
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@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
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@Description Per-version macros to allow code to seamlessly use older kernel
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@License Dual MIT/GPLv2
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The contents of this file are subject to the MIT license as set out below.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 2 ("GPL") in which case the provisions
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of GPL are applicable instead of those above.
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If you wish to allow use of your version of this file only under the terms of
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GPL, and not to allow others to use your version of this file under the terms
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of the MIT license, indicate your decision by deleting the provisions above
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and replace them with the notice and other provisions required by GPL as set
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out in the file called "GPL-COPYING" included in this distribution. If you do
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not delete the provisions above, a recipient may use your version of this file
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under the terms of either the MIT license or GPL.
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This License is also included in this distribution in the file called
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"MIT-COPYING".
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EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/ /**************************************************************************/
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#ifndef __KERNEL_COMPATIBILITY_H__
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#define __KERNEL_COMPATIBILITY_H__
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#include <linux/version.h>
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/*
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* Stop supporting an old kernel? Remove the top block.
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* New incompatible kernel? Append a new block at the bottom.
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*
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* Please write you version test as `VERSION < X.Y`, and use the earliest
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* possible version :)
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*/
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
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/* Linux 3.7 split VM_RESERVED into VM_DONTDUMP and VM_DONTEXPAND */
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#define VM_DONTDUMP VM_RESERVED
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0)) */
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/*
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* Note: this fix had to be written backwards because get_unused_fd_flags
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* was already defined but not exported on kernels < 3.7
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*
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* When removing support for kernels < 3.7, this block should be removed
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* and all `get_unused_fd()` should be manually replaced with
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* `get_unused_fd_flags(0)`
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*/
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0))
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/* Linux 3.19 removed get_unused_fd() */
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/* get_unused_fd_flags was introduced in 3.7 */
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#define get_unused_fd() get_unused_fd_flags(0)
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#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0))
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/* Linux 3.12 introduced a new shrinker API */
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#define SHRINK_STOP (~0UL)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)) && defined(CONFIG_ARM)
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/* Linux 3.13 renamed ioremap_cached to ioremap_cache */
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#define ioremap_cache(cookie,size) ioremap_cached(cookie,size)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)) && defined(CONFIG_ARM) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0))
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/* Linux 3.17 changed the 3rd argument from a `struct page ***pages` to
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* `struct page **pages` */
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#define map_vm_area(area, prot, pages) map_vm_area(area, prot, &pages)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0))
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/*
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* Linux 4.7 removed this function but its replacement was available since 3.19.
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*/
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#define drm_crtc_send_vblank_event(crtc, e) drm_send_vblank_event((crtc)->dev, drm_crtc_index(crtc), e)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0))
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/* Linux 4.4 renamed GFP_WAIT to GFP_RECLAIM */
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#define __GFP_RECLAIM __GFP_WAIT
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)) && !defined(CHROMIUMOS_WORKAROUNDS_KERNEL318)
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/* Linux 4.5 added a new printf-style parameter for debug messages */
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#define drm_encoder_init(dev, encoder, funcs, encoder_type, name, ...) \
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drm_encoder_init(dev, encoder, funcs, encoder_type)
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#define drm_universal_plane_init(dev, plane, possible_crtcs, funcs, formats, format_count, type, name, ...) \
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drm_universal_plane_init(dev, plane, possible_crtcs, funcs, formats, format_count, type)
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#define drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs, name, ...) \
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drm_crtc_init_with_planes(dev, crtc, primary, cursor, funcs)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)) && !defined(CHROMIUMOS_WORKAROUNDS_KERNEL318)
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/*
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* Linux 4.6 removed the start and end arguments as it now always maps
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* the entire DMA-BUF.
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* Additionally, dma_buf_end_cpu_access() now returns an int error.
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*/
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#define dma_buf_begin_cpu_access(DMABUF, DIRECTION) dma_buf_begin_cpu_access(DMABUF, 0, DMABUF->size, DIRECTION)
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#define dma_buf_end_cpu_access(DMABUF, DIRECTION) ({ dma_buf_end_cpu_access(DMABUF, 0, DMABUF->size, DIRECTION); 0; })
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)) && !defined(CHROMIUMOS_WORKAROUNDS_KERNEL318) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0))
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/* Linux 4.7 removed the first arguments as it's never been used */
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#define drm_gem_object_lookup(filp, handle) drm_gem_object_lookup((filp)->minor->dev, filp, handle)
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/* Linux 4.7 replaced nla_put_u64 with nla_put_u64_64bit */
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#define nla_put_u64_64bit(skb, attrtype, value, padattr) nla_put_u64(skb, attrtype, value)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)) */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0))
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/* Linux 4.9 change the second argument to a drm_file pointer */
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#define drm_vma_node_is_allowed(node, file_priv) drm_vma_node_is_allowed(node, (file_priv)->filp)
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#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0)) */
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#if !defined(CHROMIUMOS_WORKAROUNDS_KERNEL318)
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#define dev_pm_opp_of_add_table of_init_opp_table
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#define dev_pm_opp_of_remove_table of_free_opp_table
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#endif
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#endif /* __KERNEL_COMPATIBILITY_H__ */
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/*****************************************************************************
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End of file (kernel_compatibility.h)
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*****************************************************************************/
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