1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S
new file mode 100644
index 000000000..27b0a1f27
--- /dev/null
+++ b/arch/arm/vfp/entry.S
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/vfp/entry.S
+ *
+ *  Copyright (C) 2004 ARM Limited.
+ *  Written by Deep Blue Solutions Limited.
+ */
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+#include <asm/vfpmacros.h>
+#include <asm/assembler.h>
+#include <asm/asm-offsets.h>
+
+@ VFP entry point.
+@
+@  r0  = instruction opcode (32-bit ARM or two 16-bit Thumb)
+@  r2  = PC value to resume execution after successful emulation
+@  r9  = normal "successful" return address
+@  r10 = this threads thread_info structure
+@  lr  = unrecognised instruction return address
+@  IRQs enabled.
+@
+ENTRY(do_vfp)
+	inc_preempt_count r10, r4
+ 	ldr	r4, .LCvfp
+	ldr	r11, [r10, #TI_CPU]	@ CPU number
+	add	r10, r10, #TI_VFPSTATE	@ r10 = workspace
+	ldr	pc, [r4]		@ call VFP entry point
+ENDPROC(do_vfp)
+
+ENTRY(vfp_null_entry)
+	dec_preempt_count_ti r10, r4
+	ret	lr
+ENDPROC(vfp_null_entry)
+
+	.align	2
+.LCvfp:
+	.word	vfp_vector