MIPS: Enable ARCH_DMA_ADDR_T_64BIT if (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
To: akpm@linux-foundation.org
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1566/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -862,6 +862,9 @@ config GPIO_TXX9
 config CFE
 	bool
 
+config ARCH_DMA_ADDR_T_64BIT
+	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
+
 config DMA_COHERENT
 	bool