From 9a63ae85025526a6a5f432cfe41b6df649798aa4 Mon Sep 17 00:00:00 2001 From: Hector Martin Date: Thu, 11 Feb 2021 21:37:48 +0900 Subject: arm64: Implement ioremap_np() to map MMIO as nGnRnE This is used on Apple ARM platforms, which require most MMIO (except PCI devices) to be mapped as nGnRnE. Acked-by: Marc Zyngier Acked-by: Will Deacon Signed-off-by: Hector Martin --- arch/arm64/include/asm/io.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm64/include/asm/io.h') diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 5ea8656a2030..953b8703af60 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -169,6 +169,7 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size); #define ioremap(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE)) #define ioremap_wc(addr, size) __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC)) +#define ioremap_np(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRnE)) /* * PCI configuration space mapping function. -- cgit