patch-2.4.0-test11 linux/include/asm-sparc/xor.h

• Lines: 274
• Date: Sun Nov 12 19:39:51 2000
• Orig file: v2.4.0-test10/linux/include/asm-sparc/xor.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test10/linux/include/asm-sparc/xor.h linux/include/asm-sparc/xor.h
@@ -0,0 +1,273 @@
+/*
+ * include/asm-sparc/xor.h
+ *
+ * Optimized RAID-5 checksumming functions for 32-bit Sparc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * (for example /usr/src/linux/COPYING); if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * High speed xor_block operation for RAID4/5 utilizing the
+ * ldd/std SPARC instructions.
+ *
+ * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
+ */
+
+static void
+sparc_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
+{
+	int lines = bytes / (sizeof (long)) / 8;
+
+	do {
+		__asm__ __volatile__("
+		  ldd [%0 + 0x00], %%g2
+		  ldd [%0 + 0x08], %%g4
+		  ldd [%0 + 0x10], %%o0
+		  ldd [%0 + 0x18], %%o2
+		  ldd [%1 + 0x00], %%o4
+		  ldd [%1 + 0x08], %%l0
+		  ldd [%1 + 0x10], %%l2
+		  ldd [%1 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  std %%g2, [%0 + 0x00]
+		  std %%g4, [%0 + 0x08]
+		  std %%o0, [%0 + 0x10]
+		  std %%o2, [%0 + 0x18]
+		  "
+		:
+		: "r" (p1), "r" (p2)
+		: "g2", "g3", "g4", "g5",
+		  "o0", "o1", "o2", "o3", "o4", "o5",
+		  "l0", "l1", "l2", "l3", "l4", "l5");
+		p1 += 8;
+		p2 += 8;
+	} while (--lines > 0);
+}
+
+static void
+sparc_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
+	unsigned long *p3)
+{
+	int lines = bytes / (sizeof (long)) / 8;
+
+	do {
+		__asm__ __volatile__("
+		  ldd [%0 + 0x00], %%g2
+		  ldd [%0 + 0x08], %%g4
+		  ldd [%0 + 0x10], %%o0
+		  ldd [%0 + 0x18], %%o2
+		  ldd [%1 + 0x00], %%o4
+		  ldd [%1 + 0x08], %%l0
+		  ldd [%1 + 0x10], %%l2
+		  ldd [%1 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  ldd [%2 + 0x00], %%o4
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  ldd [%2 + 0x08], %%l0
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  ldd [%2 + 0x10], %%l2
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  ldd [%2 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  std %%g2, [%0 + 0x00]
+		  std %%g4, [%0 + 0x08]
+		  std %%o0, [%0 + 0x10]
+		  std %%o2, [%0 + 0x18]
+		  "
+		:
+		: "r" (p1), "r" (p2), "r" (p3)
+		: "g2", "g3", "g4", "g5",
+		  "o0", "o1", "o2", "o3", "o4", "o5",
+		  "l0", "l1", "l2", "l3", "l4", "l5");
+		p1 += 8;
+		p2 += 8;
+		p3 += 8;
+	} while (--lines > 0);
+}
+
+static void
+sparc_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
+	unsigned long *p3, unsigned long *p4)
+{
+	int lines = bytes / (sizeof (long)) / 8;
+
+	do {
+		__asm__ __volatile__("
+		  ldd [%0 + 0x00], %%g2
+		  ldd [%0 + 0x08], %%g4
+		  ldd [%0 + 0x10], %%o0
+		  ldd [%0 + 0x18], %%o2
+		  ldd [%1 + 0x00], %%o4
+		  ldd [%1 + 0x08], %%l0
+		  ldd [%1 + 0x10], %%l2
+		  ldd [%1 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  ldd [%2 + 0x00], %%o4
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  ldd [%2 + 0x08], %%l0
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  ldd [%2 + 0x10], %%l2
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  ldd [%2 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  ldd [%3 + 0x00], %%o4
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  ldd [%3 + 0x08], %%l0
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  ldd [%3 + 0x10], %%l2
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  ldd [%3 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  std %%g2, [%0 + 0x00]
+		  std %%g4, [%0 + 0x08]
+		  std %%o0, [%0 + 0x10]
+		  std %%o2, [%0 + 0x18]
+		  "
+		:
+		: "r" (p1), "r" (p2), "r" (p3), "r" (p4)
+		: "g2", "g3", "g4", "g5",
+		  "o0", "o1", "o2", "o3", "o4", "o5",
+		  "l0", "l1", "l2", "l3", "l4", "l5");
+		p1 += 8;
+		p2 += 8;
+		p3 += 8;
+		p4 += 8;
+	} while (--lines > 0);
+}
+
+static void
+sparc_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
+	unsigned long *p3, unsigned long *p4, unsigned long *p5)
+{
+	int lines = bytes / (sizeof (long)) / 8;
+
+	do {
+		__asm__ __volatile__("
+		  ldd [%0 + 0x00], %%g2
+		  ldd [%0 + 0x08], %%g4
+		  ldd [%0 + 0x10], %%o0
+		  ldd [%0 + 0x18], %%o2
+		  ldd [%1 + 0x00], %%o4
+		  ldd [%1 + 0x08], %%l0
+		  ldd [%1 + 0x10], %%l2
+		  ldd [%1 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  ldd [%2 + 0x00], %%o4
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  ldd [%2 + 0x08], %%l0
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  ldd [%2 + 0x10], %%l2
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  ldd [%2 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  ldd [%3 + 0x00], %%o4
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  ldd [%3 + 0x08], %%l0
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  ldd [%3 + 0x10], %%l2
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  ldd [%3 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  ldd [%4 + 0x00], %%o4
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  ldd [%4 + 0x08], %%l0
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  ldd [%4 + 0x10], %%l2
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  ldd [%4 + 0x18], %%l4
+		  xor %%g2, %%o4, %%g2
+		  xor %%g3, %%o5, %%g3
+		  xor %%g4, %%l0, %%g4
+		  xor %%g5, %%l1, %%g5
+		  xor %%o0, %%l2, %%o0
+		  xor %%o1, %%l3, %%o1
+		  xor %%o2, %%l4, %%o2
+		  xor %%o3, %%l5, %%o3
+		  std %%g2, [%0 + 0x00]
+		  std %%g4, [%0 + 0x08]
+		  std %%o0, [%0 + 0x10]
+		  std %%o2, [%0 + 0x18]
+		  "
+		:
+		: "r" (p1), "r" (p2), "r" (p3), "r" (p4), "r" (p5)
+		: "g2", "g3", "g4", "g5",
+		  "o0", "o1", "o2", "o3", "o4", "o5",
+		  "l0", "l1", "l2", "l3", "l4", "l5");
+		p1 += 8;
+		p2 += 8;
+		p3 += 8;
+		p4 += 8;
+		p5 += 8;
+	} while (--lines > 0);
+}
+
+static struct xor_block_template xor_block_SPARC = {
+	name: "SPARC",
+	do_2: sparc_2,
+	do_3: sparc_3,
+	do_4: sparc_4,
+	do_5: sparc_5,
+};
+
+/* For grins, also test the generic routines.  */
+#include <asm-generic/xor.h>
+
+#undef XOR_TRY_TEMPLATES
+#define XOR_TRY_TEMPLATES				\
+	do {						\
+		xor_speed(&xor_block_8regs);		\
+		xor_speed(&xor_block_32regs);		\
+		xor_speed(&xor_block_SPARC);		\
+	} while (0)