1 files changed, 50 insertions, 0 deletions

diff --git a/arch/mips/mm/page-funcs.S b/arch/mips/mm/page-funcs.S
new file mode 100644
index 000000000000..48a6b38ff13e
--- /dev/null
+++ b/arch/mips/mm/page-funcs.S
@@ -0,0 +1,50 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Micro-assembler generated clear_page/copy_page functions.
+ *
+ * Copyright (C) 2012  MIPS Technologies, Inc.
+ * Copyright (C) 2012  Ralf Baechle <ralf@linux-mips.org>
+ */
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+#ifdef CONFIG_SIBYTE_DMA_PAGEOPS
+#define cpu_clear_page_function_name    clear_page_cpu
+#define cpu_copy_page_function_name     copy_page_cpu
+#else
+#define cpu_clear_page_function_name    clear_page
+#define cpu_copy_page_function_name     copy_page
+#endif
+
+/*
+ * Maximum sizes:
+ *
+ * R4000 128 bytes S-cache:             0x058 bytes
+ * R4600 v1.7:                          0x05c bytes
+ * R4600 v2.0:                          0x060 bytes
+ * With prefetching, 16 word strides    0x120 bytes
+ */
+EXPORT(__clear_page_start)
+LEAF(cpu_clear_page_function_name)
+1:      j       1b              /* Dummy, will be replaced. */
+        .space 288
+END(cpu_clear_page_function_name)
+EXPORT(__clear_page_end)
+
+/*
+ * Maximum sizes:
+ *
+ * R4000 128 bytes S-cache:             0x11c bytes
+ * R4600 v1.7:                          0x080 bytes
+ * R4600 v2.0:                          0x07c bytes
+ * With prefetching, 16 word strides    0x540 bytes
+ */
+EXPORT(__copy_page_start)
+LEAF(cpu_copy_page_function_name)
+1:      j       1b              /* Dummy, will be replaced. */
+        .space 1344
+END(cpu_copy_page_function_name)
+EXPORT(__copy_page_end)