162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * ioremap implementation. 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 2015 Cadence Design Systems Inc. 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#include <linux/io.h> 962306a36Sopenharmony_ci#include <linux/pgtable.h> 1062306a36Sopenharmony_ci#include <asm/cacheflush.h> 1162306a36Sopenharmony_ci#include <asm/io.h> 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_civoid __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, 1462306a36Sopenharmony_ci unsigned long prot) 1562306a36Sopenharmony_ci{ 1662306a36Sopenharmony_ci unsigned long pfn = __phys_to_pfn((phys_addr)); 1762306a36Sopenharmony_ci WARN_ON(pfn_valid(pfn)); 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci return generic_ioremap_prot(phys_addr, size, __pgprot(prot)); 2062306a36Sopenharmony_ci} 2162306a36Sopenharmony_ciEXPORT_SYMBOL(ioremap_prot); 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_civoid iounmap(volatile void __iomem *addr) 2462306a36Sopenharmony_ci{ 2562306a36Sopenharmony_ci unsigned long va = (unsigned long) addr; 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci if ((va >= XCHAL_KIO_CACHED_VADDR && 2862306a36Sopenharmony_ci va - XCHAL_KIO_CACHED_VADDR < XCHAL_KIO_SIZE) || 2962306a36Sopenharmony_ci (va >= XCHAL_KIO_BYPASS_VADDR && 3062306a36Sopenharmony_ci va - XCHAL_KIO_BYPASS_VADDR < XCHAL_KIO_SIZE)) 3162306a36Sopenharmony_ci return; 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci generic_iounmap(addr); 3462306a36Sopenharmony_ci} 3562306a36Sopenharmony_ciEXPORT_SYMBOL(iounmap); 36