diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index cd2fddfe814a..8cbd1e96fd50 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -266,10 +266,23 @@ typedef int (*ioremap_prot_hook_t)(phys_addr_t phys_addr, size_t size, int arm64_ioremap_prot_hook_register(const ioremap_prot_hook_t hook); void __iomem *__ioremap_prot(phys_addr_t phys, size_t size, pgprot_t prot); -#define ioremap_prot __ioremap_prot +static inline void __iomem *ioremap_prot(phys_addr_t phys, size_t size, + pgprot_t user_prot) +{ + pgprot_t prot; + ptdesc_t user_prot_val = pgprot_val(user_prot); -#define _PAGE_IOREMAP PROT_DEVICE_nGnRE + if (WARN_ON_ONCE(!(user_prot_val & PTE_USER))) + return NULL; + prot = __pgprot_modify(PAGE_KERNEL, PTE_ATTRINDX_MASK, + user_prot_val & PTE_ATTRINDX_MASK); + return __ioremap_prot(phys, size, prot); +} +#define ioremap_prot ioremap_prot + +#define ioremap(addr, size) \ + __ioremap_prot((addr), (size), __pgprot(PROT_DEVICE_nGnRE)) #define ioremap_wc(addr, size) \ __ioremap_prot((addr), (size), __pgprot(PROT_NORMAL_NC)) #define ioremap_np(addr, size) \