1 files changed, 77 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/xor.h b/arch/arm64/include/asm/xor.h
new file mode 100644
index 000000000..befcd8a7a
--- /dev/null
+++ b/arch/arm64/include/asm/xor.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm64/include/asm/xor.h
+ *
+ * Authors: Jackie Liu <liuyun01@kylinos.cn>
+ * Copyright (C) 2018,Tianjin KYLIN Information Technology Co., Ltd.
+ */
+
+#include <linux/hardirq.h>
+#include <asm-generic/xor.h>
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+
+#ifdef CONFIG_KERNEL_MODE_NEON
+
+extern struct xor_block_template const xor_block_inner_neon;
+
+static void
+xor_neon_2(unsigned long bytes, unsigned long * __restrict p1,
+	   const unsigned long * __restrict p2)
+{
+	kernel_neon_begin();
+	xor_block_inner_neon.do_2(bytes, p1, p2);
+	kernel_neon_end();
+}
+
+static void
+xor_neon_3(unsigned long bytes, unsigned long * __restrict p1,
+	   const unsigned long * __restrict p2,
+	   const unsigned long * __restrict p3)
+{
+	kernel_neon_begin();
+	xor_block_inner_neon.do_3(bytes, p1, p2, p3);
+	kernel_neon_end();
+}
+
+static void
+xor_neon_4(unsigned long bytes, unsigned long * __restrict p1,
+	   const unsigned long * __restrict p2,
+	   const unsigned long * __restrict p3,
+	   const unsigned long * __restrict p4)
+{
+	kernel_neon_begin();
+	xor_block_inner_neon.do_4(bytes, p1, p2, p3, p4);
+	kernel_neon_end();
+}
+
+static void
+xor_neon_5(unsigned long bytes, unsigned long * __restrict p1,
+	   const unsigned long * __restrict p2,
+	   const unsigned long * __restrict p3,
+	   const unsigned long * __restrict p4,
+	   const unsigned long * __restrict p5)
+{
+	kernel_neon_begin();
+	xor_block_inner_neon.do_5(bytes, p1, p2, p3, p4, p5);
+	kernel_neon_end();
+}
+
+static struct xor_block_template xor_block_arm64 = {
+	.name   = "arm64_neon",
+	.do_2   = xor_neon_2,
+	.do_3   = xor_neon_3,
+	.do_4   = xor_neon_4,
+	.do_5	= xor_neon_5
+};
+#undef XOR_TRY_TEMPLATES
+#define XOR_TRY_TEMPLATES           \
+	do {        \
+		xor_speed(&xor_block_8regs);    \
+		xor_speed(&xor_block_32regs);    \
+		if (cpu_has_neon()) { \
+			xor_speed(&xor_block_arm64);\
+		} \
+	} while (0)
+
+#endif /* ! CONFIG_KERNEL_MODE_NEON */