arm64: Drop generic xlate_dev_mem_{k,}ptr() (f928c16d) · Commits · 戴 / test

The code that provides /dev/mem uses xlate_dev_mem_{k,}ptr() to avoid making a cachable mapping of a non-cachable area on ia64. On arm64 we do this via phys_mem_access_prot() instead, but provide dummy versions of xlate_dev_mem_{k,}ptr(). These are the same as those in asm-generic/io.h, which we include from asm/io.h Signed-off-by:

James Morse <james.morse@arm.com> Signed-off-by:

Will Deacon <will.deacon@arm.com>

arch/arm64/include/asm/io.h

+0 −11

Original line number	Diff line number	Diff line
		@@ -184,17 +184,6 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
		#define iowrite32be(v,p) ({ __iowmb(); __raw_writel((__force __u32)cpu_to_be32(v), p); })
		#define iowrite64be(v,p) ({ __iowmb(); __raw_writeq((__force __u64)cpu_to_be64(v), p); })

		/*
		* Convert a physical pointer to a virtual kernel pointer for /dev/mem
		* access
		*/
		#define xlate_dev_mem_ptr(p) __va(p)

		/*
		* Convert a virtual cached pointer to an uncached pointer
		*/
		#define xlate_dev_kmem_ptr(p) p

		#include <asm-generic/io.h>

		/*

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