Now that we have DEFAULT_MAP_WINDOW defined, we can arch_get_mmap_end and arch_get_mmap_base helpers to allow for high addresses in mmap. Signed-off-by: Steve Capper <steve.capper@xxxxxxx> Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx> --- arch/arm64/include/asm/processor.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 50586ca6bacb..fe95fd8b065e 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -72,6 +72,13 @@ #define STACK_TOP STACK_TOP_MAX #endif /* CONFIG_COMPAT */ +#define arch_get_mmap_end(addr) ((addr > DEFAULT_MAP_WINDOW) ? TASK_SIZE :\ + DEFAULT_MAP_WINDOW) + +#define arch_get_mmap_base(addr, base) ((addr > DEFAULT_MAP_WINDOW) ? \ + base + TASK_SIZE - DEFAULT_MAP_WINDOW :\ + base) + extern phys_addr_t arm64_dma_phys_limit; #define ARCH_LOW_ADDRESS_LIMIT (arm64_dma_phys_limit - 1) -- 2.19.2
