diff options
| author | Hector Martin <marcan@marcan.st> | 2021-02-11 21:37:48 +0900 |
|---|---|---|
| committer | Hector Martin <marcan@marcan.st> | 2021-04-08 20:18:38 +0900 |
| commit | 9a63ae85025526a6a5f432cfe41b6df649798aa4 (patch) | |
| tree | baa1569cb18bfeb6d7ff9979515a38f6e7c473ed /arch/arm64/include/asm/io.h | |
| parent | 08e9b5be9efba97804f7c9aef561dfa818c39ca5 (diff) | |
| download | linux-9a63ae85025526a6a5f432cfe41b6df649798aa4.tar.bz2 | |
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 <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Diffstat (limited to 'arch/arm64/include/asm/io.h')
| -rw-r--r-- | arch/arm64/include/asm/io.h | 1 |
1 files changed, 1 insertions, 0 deletions
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. |