diff options
-rw-r--r-- | arch/x86/include/asm/io.h | 8 | ||||
-rw-r--r-- | arch/x86/mm/ioremap.c | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index 841a5d104afa..5c6a4af0b911 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -391,6 +391,7 @@ extern void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size) #define arch_io_reserve_memtype_wc arch_io_reserve_memtype_wc #endif +#ifdef CONFIG_AMD_MEM_ENCRYPT extern bool arch_memremap_can_ram_remap(resource_size_t offset, unsigned long size, unsigned long flags); @@ -398,6 +399,13 @@ extern bool arch_memremap_can_ram_remap(resource_size_t offset, extern bool phys_mem_access_encrypted(unsigned long phys_addr, unsigned long size); +#else +static inline bool phys_mem_access_encrypted(unsigned long phys_addr, + unsigned long size) +{ + return true; +} +#endif /** * iosubmit_cmds512 - copy data to single MMIO location, in 512-bit units diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 60ade7dd71bd..ccff76cedd8f 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -508,6 +508,7 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr) memunmap((void *)((unsigned long)addr & PAGE_MASK)); } +#ifdef CONFIG_AMD_MEM_ENCRYPT /* * Examine the physical address to determine if it is an area of memory * that should be mapped decrypted. If the memory is not part of the @@ -746,7 +747,6 @@ bool phys_mem_access_encrypted(unsigned long phys_addr, unsigned long size) return arch_memremap_can_ram_remap(phys_addr, size, 0); } -#ifdef CONFIG_AMD_MEM_ENCRYPT /* Remap memory with encryption */ void __init *early_memremap_encrypted(resource_size_t phys_addr, unsigned long size) |