MIPS: Add support for uncached accelerated mappings.

Loongson2f support video acceleration.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/624/
Patchwork: http://patchwork.linux-mips.org/patch/625/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 51e4e5b..e2116b1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1336,6 +1336,7 @@
 	bool
 	select CPU_SUPPORTS_CPUFREQ
 	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
+	select CPU_SUPPORTS_UNCACHED_ACCELERATED
 
 config SYS_HAS_CPU_MIPS32_R1
 	bool
@@ -1451,6 +1452,8 @@
 	bool
 config CPU_SUPPORTS_HUGEPAGES
 	bool
+config CPU_SUPPORTS_UNCACHED_ACCELERATED
+	bool
 config MIPS_PGD_C0_CONTEXT
 	bool
 	default y if 64BIT && CPU_MIPSR2