Initial import.

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diff --git a/src/mesa/ppc/rlvec.h b/src/mesa/ppc/rlvec.h
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+/*
+ * Copyright (c) 2026 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Radoslaw Kujawa.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RLVEC_H
+#define RLVEC_H
+
+#include <stdint.h>
+
+typedef void rlvec_xform_points3_fn(float *to, const float m[16],
+    const float *from, int from_stride, int count);
+
+typedef uint32_t rlvec_outcode5_fn(uint8_t *oc, uint32_t *and_out,
+    const float *clip, int count);
+
+typedef void rlvec_project_fn(float *out9, const float *clip,
+    const float *attr, const float k[8], int count);
+
+typedef uint32_t *rlvec_emit_tris_fn(uint32_t *dst, const float *verts9,
+    const uint8_t *idx, int ntris, uint32_t hdr);
+
+struct rlvec_ops {
+	rlvec_xform_points3_fn	*xform_points3;
+	rlvec_outcode5_fn	*outcode5;
+	rlvec_project_fn	*project;
+	rlvec_emit_tris_fn	*emit_tris;
+};
+
+extern struct rlvec_ops rlvec;		/* active table */
+extern const struct rlvec_ops rlvec_c;	/* portable reference */
+#ifdef RLVEC_PPC
+extern const struct rlvec_ops rlvec_ppc;	/* rlvec_ppc.S */
+#endif
+
+void	rlvec_init(void);
+
+#endif /* RLVEC_H */