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https://github.com/rd-stuffs/msm-4.14.git
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485fe425a6
Some clients require these iommu files for their compilation to proceed. Add these files temporarily to unblock them. Signed-off-by: Sudarshan Rajagopalan <sudaraja@codeaurora.org> Change-Id: I3aa0f89ed2d8502422df2ec9045e8bd9e12dce49
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __LINUX_IO_PGTABLE_FAST_H
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#define __LINUX_IO_PGTABLE_FAST_H
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#include <linux/notifier.h>
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typedef u64 av8l_fast_iopte;
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#define iopte_pmd_offset(pmds, iova) (pmds + (iova >> 12))
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int av8l_fast_map_public(av8l_fast_iopte *ptep, phys_addr_t paddr, size_t size,
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int prot);
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void av8l_fast_unmap_public(av8l_fast_iopte *ptep, size_t size);
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/* events for notifiers passed to av8l_register_notify */
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#define MAPPED_OVER_STALE_TLB 1
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#ifdef CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB
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/*
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* Doesn't matter what we use as long as bit 0 is unset. The reason why we
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* need a different value at all is that there are certain hardware
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* platforms with erratum that require that a PTE actually be zero'd out
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* and not just have its valid bit unset.
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*/
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#define AV8L_FAST_PTE_UNMAPPED_NEED_TLBI 0xa
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void av8l_fast_clear_stale_ptes(av8l_fast_iopte *puds, bool skip_sync);
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void av8l_register_notify(struct notifier_block *nb);
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#else /* !CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB */
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#define AV8L_FAST_PTE_UNMAPPED_NEED_TLBI 0
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static inline void av8l_fast_clear_stale_ptes(av8l_fast_iopte *puds,
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bool skip_sync)
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{
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}
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static inline void av8l_register_notify(struct notifier_block *nb)
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{
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}
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#endif /* CONFIG_IOMMU_IO_PGTABLE_FAST_PROVE_TLB */
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#endif /* __LINUX_IO_PGTABLE_FAST_H */
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