36 lines
823 B
C
36 lines
823 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* ioremap implementation.
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*
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* Copyright (C) 2015 Cadence Design Systems Inc.
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*/
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#include <linux/io.h>
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#include <linux/pgtable.h>
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#include <asm/cacheflush.h>
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#include <asm/io.h>
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void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
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unsigned long prot)
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{
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unsigned long pfn = __phys_to_pfn((phys_addr));
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WARN_ON(pfn_valid(pfn));
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return generic_ioremap_prot(phys_addr, size, __pgprot(prot));
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}
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EXPORT_SYMBOL(ioremap_prot);
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void iounmap(volatile void __iomem *addr)
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{
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unsigned long va = (unsigned long) addr;
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if ((va >= XCHAL_KIO_CACHED_VADDR &&
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va - XCHAL_KIO_CACHED_VADDR < XCHAL_KIO_SIZE) ||
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(va >= XCHAL_KIO_BYPASS_VADDR &&
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va - XCHAL_KIO_BYPASS_VADDR < XCHAL_KIO_SIZE))
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return;
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generic_iounmap(addr);
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}
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EXPORT_SYMBOL(iounmap);
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