1 files changed, 88 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_powerpc.h b/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_powerpc.h
new file mode 100644
index 000000000000..2fd806e1a0b5
--- /dev/null
+++ b/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_powerpc.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
+ * All rights reserved.
+ *
+ * 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 AUTHORS 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 AUTHORS 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * SIMD support:
+ *
+ * Following functions should be called to determine whether CPU feature
+ * is supported. All functions are usable in kernel and user space.
+ * If a SIMD algorithm is using more than one instruction set
+ * all relevant feature test functions should be called.
+ *
+ * Supported features:
+ *   zfs_altivec_available()
+ *   zfs_vsx_available()
+ *   zfs_isa207_available()
+ */
+
+#ifndef _FREEBSD_SIMD_POWERPC_H
+#define	_FREEBSD_SIMD_POWERPC_H
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#include <machine/pcb.h>
+#include <machine/cpu.h>
+
+/* FreeBSD doesn't support floating point on powerpc kernel yet */
+#define	kfpu_allowed()		0
+
+#define	kfpu_initialize(tsk)	do {} while (0)
+#define	kfpu_begin()		do {} while (0)
+#define	kfpu_end()		do {} while (0)
+#define	kfpu_init()		(0)
+#define	kfpu_fini()		do {} while (0)
+
+/*
+ * Check if Altivec is available
+ */
+static inline boolean_t
+zfs_altivec_available(void)
+{
+	return ((cpu_features & PPC_FEATURE_HAS_ALTIVEC) != 0);
+}
+
+/*
+ * Check if VSX is available
+ */
+static inline boolean_t
+zfs_vsx_available(void)
+{
+	return ((cpu_features & PPC_FEATURE_HAS_VSX) != 0);
+}
+
+/*
+ * Check if POWER ISA 2.07 is available (SHA2)
+ */
+static inline boolean_t
+zfs_isa207_available(void)
+{
+	return ((cpu_features2 & PPC_FEATURE2_ARCH_2_07) != 0);
+}
+
+#endif