sparc: Add multiarch support for memset/bzero/memcpy. davem/sparc

2010-02-25  David S. Miller  <davem@davemloft.net>

	* sysdeps/sparc/elf/rtld-global-offsets.sym: New file.
	* sysdeps/sparc/Makefile (csu): Add rtld-global-offsets.sym to
	gen-as-const-headers.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile: New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memset.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/sparcv9b/memcpy.S: Move to...
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-ultra3.S: ...here.
	* sysdeps/sparc/sparc32/sparcv9/sparcv9v/memcpy.S: Move to...
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-niagara1.S: ...here.
	* sysdeps/sparc/sparc32/sparcv9/sparcv9v/memset.S: Move to...
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memset-niagara1.S: ...here.
	* sysdeps/sparc/sparc32/sparcv9/sparcv9v2/memcpy.S: Move to...
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-niagara2.S: ...here.
	* sysdeps/sparc/sparc32/sparcv9/sparcv9v2/memset.S: Removed.
	* sysdeps/sparc/sparc64/multiarch/Makefile: New file.
	* sysdeps/sparc/sparc64/sparcv9v/memcpy.S: Move to...
	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara1.S: ...here.
	* sysdeps/sparc/sparc64/sparcv9v2/memcpy.S: Move to...
	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: ...here.
	* sysdeps/sparc/sparc64/sparcv9b/memcpy.S: Move to...
	* sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: ...here.
	* sysdeps/sparc/sparc64/sparcv9v/memset.S: Move to...
	* sysdeps/sparc/sparc64/multiarch/memset-niagara1.S: ...here.
	* sysdeps/sparc/sparc64/sparcv9v2/memset.S: Removed.
	* sysdeps/sparc/sparc64/multiarch/memcpy.S: New file.
	* sysdeps/sparc/sparc64/multiarch/memset.S: New file.

1 files changed, 0 insertions, 318 deletions

diff --git a/sysdeps/sparc/sparc64/sparcv9b/memcpy.S b/sysdeps/sparc/sparc64/sparcv9b/memcpy.S
deleted file mode 100644
index 389e09d820..0000000000
--- a/sysdeps/sparc/sparc64/sparcv9b/memcpy.S
+++ /dev/null
@@ -1,318 +0,0 @@
-/* Copy SIZE bytes from SRC to DEST.
-   For UltraSPARC-III.
-   Copyright (C) 2001, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David S. Miller (davem@redhat.com)
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <sysdep.h>
-
-#define ASI_BLK_P 0xf0
-#define FPRS_FEF  0x04
-#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
-#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
-
-#ifndef XCC
-#define USE_BPR
-#define XCC xcc
-#endif
-
-	.register	%g2,#scratch
-	.register	%g3,#scratch
-	.register	%g6,#scratch
-
-	.text
-
-	/* Special/non-trivial issues of this code:
-	 *
-	 * 1) %o5 is preserved from VISEntryHalf to VISExitHalf
-	 * 2) Only low 32 FPU registers are used so that only the
-	 *    lower half of the FPU register set is dirtied by this
-	 *    code.  This is especially important in the kernel.
-	 * 3) This code never prefetches cachelines past the end
-	 *    of the source buffer.
-	 *
-	 * The cheetah's flexible spine, oversized liver, enlarged heart,
-	 * slender muscular body, and claws make it the swiftest hunter
-	 * in Africa and the fastest animal on land.  Can reach speeds
-	 * of up to 2.4GB per second.
-	 */
-	.align		32
-ENTRY(memcpy)
-
-100: /* %o0=dst, %o1=src, %o2=len */
-	mov		%o0, %g5
-	cmp		%o2, 0
-	be,pn		%XCC, out
-218:	 or		%o0, %o1, %o3
-	cmp		%o2, 16
-	bleu,a,pn	%XCC, small_copy
-	 or		%o3, %o2, %o3
-
-	cmp		%o2, 256
-	blu,pt		%XCC, medium_copy
-	 andcc		%o3, 0x7, %g0
-
-	ba,pt		%xcc, enter
-	 andcc		%o0, 0x3f, %g2
-
-	/* Here len >= 256 and condition codes reflect execution
-	 * of "andcc %o0, 0x7, %g2", done by caller.
-	 */
-	.align		64
-enter:
-	/* Is 'dst' already aligned on an 64-byte boundary? */
-	be,pt		%XCC, 2f
-
-	/* Compute abs((dst & 0x3f) - 0x40) into %g2.  This is the number
-	 * of bytes to copy to make 'dst' 64-byte aligned.  We pre-
-	 * subtract this from 'len'.
-	 */
-	 sub		%g2, 0x40, %g2
-	sub		%g0, %g2, %g2
-	sub		%o2, %g2, %o2
-
-	/* Copy %g2 bytes from src to dst, one byte at a time. */
-1:	ldub		[%o1 + 0x00], %o3
-	add		%o1, 0x1, %o1
-	add		%o0, 0x1, %o0
-	subcc		%g2, 0x1, %g2
-
-	bg,pt		%XCC, 1b
-	 stb		%o3, [%o0 + -1]
-
-2:	VISEntryHalf
-	and		%o1, 0x7, %g1
-	ba,pt		%xcc, begin
-	 alignaddr	%o1, %g0, %o1
-
-	.align		64
-begin:
-	prefetch	[%o1 + 0x000], #one_read
-	prefetch	[%o1 + 0x040], #one_read
-	andn		%o2, (0x40 - 1), %o4
-	prefetch	[%o1 + 0x080], #one_read
-	prefetch	[%o1 + 0x0c0], #one_read
-	ldd		[%o1 + 0x000], %f0
-	prefetch	[%o1 + 0x100], #one_read
-	ldd		[%o1 + 0x008], %f2
-	prefetch	[%o1 + 0x140], #one_read
-	ldd		[%o1 + 0x010], %f4
-	prefetch	[%o1 + 0x180], #one_read
-	faligndata	%f0, %f2, %f16
-	ldd		[%o1 + 0x018], %f6
-	faligndata	%f2, %f4, %f18
-	ldd		[%o1 + 0x020], %f8
-	faligndata	%f4, %f6, %f20
-	ldd		[%o1 + 0x028], %f10
-	faligndata	%f6, %f8, %f22
-
-	ldd		[%o1 + 0x030], %f12
-	faligndata	%f8, %f10, %f24
-	ldd		[%o1 + 0x038], %f14
-	faligndata	%f10, %f12, %f26
-	ldd		[%o1 + 0x040], %f0
-
-	sub		%o4, 0x80, %o4
-	add		%o1, 0x40, %o1
-	ba,pt		%xcc, loop
-	 srl		%o4, 6, %o3
-
-	.align		64
-loop:
-	ldd		[%o1 + 0x008], %f2
-	faligndata	%f12, %f14, %f28
-	ldd		[%o1 + 0x010], %f4
-	faligndata	%f14, %f0, %f30
-	stda		%f16, [%o0] ASI_BLK_P
-	ldd		[%o1 + 0x018], %f6
-	faligndata	%f0, %f2, %f16
-
-	ldd		[%o1 + 0x020], %f8
-	faligndata	%f2, %f4, %f18
-	ldd		[%o1 + 0x028], %f10
-	faligndata	%f4, %f6, %f20
-	ldd		[%o1 + 0x030], %f12
-	faligndata	%f6, %f8, %f22
-	ldd		[%o1 + 0x038], %f14
-	faligndata	%f8, %f10, %f24
-
-	ldd		[%o1 + 0x040], %f0
-	prefetch	[%o1 + 0x180], #one_read
-	faligndata	%f10, %f12, %f26
-	subcc		%o3, 0x01, %o3
-	add		%o1, 0x40, %o1
-	bg,pt		%XCC, loop
-	 add		%o0, 0x40, %o0
-
-	/* Finally we copy the last full 64-byte block. */
-loopfini:
-	ldd		[%o1 + 0x008], %f2
-	faligndata	%f12, %f14, %f28
-	ldd		[%o1 + 0x010], %f4
-	faligndata	%f14, %f0, %f30
-	stda		%f16, [%o0] ASI_BLK_P
-	ldd		[%o1 + 0x018], %f6
-	faligndata	%f0, %f2, %f16
-	ldd		[%o1 + 0x020], %f8
-	faligndata	%f2, %f4, %f18
-	ldd		[%o1 + 0x028], %f10
-	faligndata	%f4, %f6, %f20
-	ldd		[%o1 + 0x030], %f12
-	faligndata	%f6, %f8, %f22
-	ldd		[%o1 + 0x038], %f14
-	faligndata	%f8, %f10, %f24
-	cmp		%g1, 0
-	be,pt		%XCC, 1f
-	 add		%o0, 0x40, %o0
-	ldd		[%o1 + 0x040], %f0
-1:	faligndata	%f10, %f12, %f26
-	faligndata	%f12, %f14, %f28
-	faligndata	%f14, %f0, %f30
-	stda		%f16, [%o0] ASI_BLK_P
-	add		%o0, 0x40, %o0
-	add		%o1, 0x40, %o1
-	membar		#Sync
-
-	/* Now we copy the (len modulo 64) bytes at the end.
-	 * Note how we borrow the %f0 loaded above.
-	 *
-	 * Also notice how this code is careful not to perform a
-	 * load past the end of the src buffer.
-	 */
-loopend:
-	and		%o2, 0x3f, %o2
-	andcc		%o2, 0x38, %g2
-	be,pn		%XCC, endcruft
-	 subcc		%g2, 0x8, %g2
-	be,pn		%XCC, endcruft
-	 cmp		%g1, 0
-
-	be,a,pt		%XCC, 1f
-	 ldd		[%o1 + 0x00], %f0
-
-1:	ldd		[%o1 + 0x08], %f2
-	add		%o1, 0x8, %o1
-	sub		%o2, 0x8, %o2
-	subcc		%g2, 0x8, %g2
-	faligndata	%f0, %f2, %f8
-	std		%f8, [%o0 + 0x00]
-	be,pn		%XCC, endcruft
-	 add		%o0, 0x8, %o0
-	ldd		[%o1 + 0x08], %f0
-	add		%o1, 0x8, %o1
-	sub		%o2, 0x8, %o2
-	subcc		%g2, 0x8, %g2
-	faligndata	%f2, %f0, %f8
-	std		%f8, [%o0 + 0x00]
-	bne,pn		%XCC, 1b
-	 add		%o0, 0x8, %o0
-
-	/* If anything is left, we copy it one byte at a time.
-	 * Note that %g1 is (src & 0x3) saved above before the
-	 * alignaddr was performed.
-	 */
-endcruft:
-	cmp		%o2, 0
-	add		%o1, %g1, %o1
-	VISExitHalf
-	be,pn		%XCC, out
-	 sub		%o0, %o1, %o3
-
-	andcc		%g1, 0x7, %g0
-	bne,pn		%icc, small_copy_unaligned
-	 andcc		%o2, 0x8, %g0
-	be,pt		%icc, 1f
-	 nop
-	ldx		[%o1], %o5
-	stx		%o5, [%o1 + %o3]
-	add		%o1, 0x8, %o1
-
-1:	andcc		%o2, 0x4, %g0
-	be,pt		%icc, 1f
-	 nop
-	lduw		[%o1], %o5
-	stw		%o5, [%o1 + %o3]
-	add		%o1, 0x4, %o1
-
-1:	andcc		%o2, 0x2, %g0
-	be,pt		%icc, 1f
-	 nop
-	lduh		[%o1], %o5
-	sth		%o5, [%o1 + %o3]
-	add		%o1, 0x2, %o1
-
-1:	andcc		%o2, 0x1, %g0
-	be,pt		%icc, out
-	 nop
-	ldub		[%o1], %o5
-	ba,pt		%xcc, out
-	 stb		%o5, [%o1 + %o3]
-
-medium_copy: /* 16 < len <= 64 */
-	bne,pn		%XCC, small_copy_unaligned
-	 sub		%o0, %o1, %o3
-
-medium_copy_aligned:
-	andn		%o2, 0x7, %o4
-	and		%o2, 0x7, %o2
-1:	subcc		%o4, 0x8, %o4
-	ldx		[%o1], %o5
-	stx		%o5, [%o1 + %o3]
-	bgu,pt		%XCC, 1b
-	 add		%o1, 0x8, %o1
-	andcc		%o2, 0x4, %g0
-	be,pt		%XCC, 1f
-	 nop
-	sub		%o2, 0x4, %o2
-	lduw		[%o1], %o5
-	stw		%o5, [%o1 + %o3]
-	add		%o1, 0x4, %o1
-1:	cmp		%o2, 0
-	be,pt		%XCC, out
-	 nop
-	ba,pt		%xcc, small_copy_unaligned
-	 nop
-
-small_copy: /* 0 < len <= 16 */
-	andcc		%o3, 0x3, %g0
-	bne,pn		%XCC, small_copy_unaligned
-	 sub		%o0, %o1, %o3
-
-small_copy_aligned:
-	subcc		%o2, 4, %o2
-	lduw		[%o1], %g1
-	stw		%g1, [%o1 + %o3]
-	bgu,pt		%XCC, small_copy_aligned
-	 add		%o1, 4, %o1
-
-out:	retl
-	 mov		%g5, %o0
-
-	.align	32
-small_copy_unaligned:
-	subcc		%o2, 1, %o2
-	ldub		[%o1], %g1
-	stb		%g1, [%o1 + %o3]
-	bgu,pt		%XCC, small_copy_unaligned
-	 add		%o1, 1, %o1
-	retl
-	 mov		%g5, %o0
-
-END(memcpy)
-
-libc_hidden_builtin_def (memcpy)