| Message ID | 20210304213902.83903-12-marcan@marcan.st |
|---|---|
| State | New |
| Headers | show |
| Series | Apple M1 SoC platform bring-up | expand |
On Thu, 04 Mar 2021 21:38:46 +0000, Hector Martin <marcan@marcan.st> wrote: > > This is used on Apple ARM platforms, which require most MMIO > (except PCI devices) to be mapped as nGnRnE. > > Signed-off-by: Hector Martin <marcan@marcan.st> Acked-by: Marc Zyngier <maz@kernel.org> M. -- Without deviation from the norm, progress is not possible.
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.
This is used on Apple ARM platforms, which require most MMIO (except PCI devices) to be mapped as nGnRnE. Signed-off-by: Hector Martin <marcan@marcan.st> --- arch/arm64/include/asm/io.h | 1 + 1 file changed, 1 insertion(+)