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, 340 deletions

diff --git a/sysdeps/sparc/sparc64/sparcv9v/memcpy.S b/sysdeps/sparc/sparc64/sparcv9v/memcpy.S
deleted file mode 100644
index 116c7113ff..0000000000
--- a/sysdeps/sparc/sparc64/sparcv9v/memcpy.S
+++ /dev/null
@@ -1,340 +0,0 @@
-/* Copy SIZE bytes from SRC to DEST.  For SUN4V Niagara.
-   Copyright (C) 2006, 2008 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David S. Miller (davem@davemloft.net)
-
-   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_INIT_QUAD_LDD_P	0xe2
-#define ASI_P			0x80
-#define ASI_PNF			0x82
-
-#define LOAD(type,addr,dest)	type##a [addr] ASI_P, dest
-#define LOAD_TWIN(addr_reg,dest0,dest1)	\
-	ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_P, dest0
-
-#define STORE(type,src,addr)	type src, [addr]
-#define STORE_INIT(src,addr)	stxa src, [addr] %asi
-
-#ifndef XCC
-#define USE_BPR
-#define XCC xcc
-#endif
-
-	.register	%g2,#scratch
-	.register	%g3,#scratch
-	.register	%g6,#scratch
-
-	.text
-
-	.align		32
-ENTRY(memcpy)
-#ifndef USE_BPR
-	srl		%o2, 0, %o2
-#endif
-100:	/* %o0=dst, %o1=src, %o2=len */
-	mov		%o0, %g5
-	cmp		%o2, 0
-	be,pn		%XCC, 85f
-218:	 or		%o0, %o1, %o3
-	cmp		%o2, 16
-	blu,a,pn	%XCC, 80f
-	 or		%o3, %o2, %o3
-
-	/* 2 blocks (128 bytes) is the minimum we can do the block
-	 * copy with.  We need to ensure that we'll iterate at least
-	 * once in the block copy loop.  At worst we'll need to align
-	 * the destination to a 64-byte boundary which can chew up
-	 * to (64 - 1) bytes from the length before we perform the
-	 * block copy loop.
-	 */
-	cmp		%o2, (2 * 64)
-	blu,pt		%XCC, 70f
-	 andcc		%o3, 0x7, %g0
-
-	/* %o0:	dst
-	 * %o1:	src
-	 * %o2:	len  (known to be >= 128)
-	 *
-	 * The block copy loops will use %o4/%o5,%g2/%g3 as
-	 * temporaries while copying the data.
-	 */
-
-	LOAD(prefetch, %o1, #one_read)
-	wr		%g0, ASI_BLK_INIT_QUAD_LDD_P, %asi
-
-	/* Align destination on 64-byte boundary.  */
-	andcc		%o0, (64 - 1), %o4
-	be,pt		%XCC, 2f
-	 sub		%o4, 64, %o4
-	sub		%g0, %o4, %o4	! bytes to align dst
-	sub		%o2, %o4, %o2
-1:	subcc		%o4, 1, %o4
-	LOAD(ldub, %o1, %g1)
-	STORE(stb, %g1, %o0)
-	add		%o1, 1, %o1
-	bne,pt		%XCC, 1b
-	add		%o0, 1, %o0
-
-	/* If the source is on a 16-byte boundary we can do
-	 * the direct block copy loop.  If it is 8-byte aligned
-	 * we can do the 16-byte loads offset by -8 bytes and the
-	 * init stores offset by one register.
-	 *
-	 * If the source is not even 8-byte aligned, we need to do
-	 * shifting and masking (basically integer faligndata).
-	 *
-	 * The careful bit with init stores is that if we store
-	 * to any part of the cache line we have to store the whole
-	 * cacheline else we can end up with corrupt L2 cache line
-	 * contents.  Since the loop works on 64-bytes of 64-byte
-	 * aligned store data at a time, this is easy to ensure.
-	 */
-2:
-	andcc		%o1, (16 - 1), %o4
-	andn		%o2, (64 - 1), %g1	! block copy loop iterator
-	sub		%o2, %g1, %o2		! final sub-block copy bytes
-	be,pt		%XCC, 50f
-	 cmp		%o4, 8
-	be,a,pt		%XCC, 10f
-	 sub		%o1, 0x8, %o1
-
-	/* Neither 8-byte nor 16-byte aligned, shift and mask.  */
-	mov		%g1, %o4
-	and		%o1, 0x7, %g1
-	sll		%g1, 3, %g1
-	mov		64, %o3
-	andn		%o1, 0x7, %o1
-	LOAD(ldx, %o1, %g2)
-	sub		%o3, %g1, %o3
-	sllx		%g2, %g1, %g2
-
-#define SWIVEL_ONE_DWORD(SRC, TMP1, TMP2, PRE_VAL, PRE_SHIFT, POST_SHIFT, DST)\
-	LOAD(ldx, SRC, TMP1); \
-	srlx		TMP1, PRE_SHIFT, TMP2; \
-	or		TMP2, PRE_VAL, TMP2; \
-	STORE_INIT(TMP2, DST); \
-	sllx		TMP1, POST_SHIFT, PRE_VAL;
-
-1:	add		%o1, 0x8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x00)
-	add		%o1, 0x8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x08)
-	add		%o1, 0x8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x10)
-	add		%o1, 0x8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x18)
-	add		%o1, 32, %o1
-	LOAD(prefetch, %o1, #one_read)
-	sub		%o1, 32 - 8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x20)
-	add		%o1, 8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x28)
-	add		%o1, 8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x30)
-	add		%o1, 8, %o1
-	SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x38)
-	subcc		%o4, 64, %o4
-	bne,pt		%XCC, 1b
-	 add		%o0, 64, %o0
-
-#undef SWIVEL_ONE_DWORD
-
-	srl		%g1, 3, %g1
-	ba,pt		%XCC, 60f
-	 add		%o1, %g1, %o1
-
-10:	/* Destination is 64-byte aligned, source was only 8-byte
-	 * aligned but it has been subtracted by 8 and we perform
-	 * one twin load ahead, then add 8 back into source when
-	 * we finish the loop.
-	 */
-	LOAD_TWIN(%o1, %o4, %o5)
-1:	add		%o1, 16, %o1
-	LOAD_TWIN(%o1, %g2, %g3)
-	add		%o1, 16 + 32, %o1
-	LOAD(prefetch, %o1, #one_read)
-	sub		%o1, 32, %o1
-	STORE_INIT(%o5, %o0 + 0x00)		! initializes cache line
-	STORE_INIT(%g2, %o0 + 0x08)
-	LOAD_TWIN(%o1, %o4, %o5)
-	add		%o1, 16, %o1
-	STORE_INIT(%g3, %o0 + 0x10)
-	STORE_INIT(%o4, %o0 + 0x18)
-	LOAD_TWIN(%o1, %g2, %g3)
-	add		%o1, 16, %o1
-	STORE_INIT(%o5, %o0 + 0x20)
-	STORE_INIT(%g2, %o0 + 0x28)
-	LOAD_TWIN(%o1, %o4, %o5)
-	STORE_INIT(%g3, %o0 + 0x30)
-	STORE_INIT(%o4, %o0 + 0x38)
-	subcc		%g1, 64, %g1
-	bne,pt		%XCC, 1b
-	 add		%o0, 64, %o0
-
-	ba,pt		%XCC, 60f
-	 add		%o1, 0x8, %o1
-
-50:	/* Destination is 64-byte aligned, and source is 16-byte
-	 * aligned.
-	 */
-1:	LOAD_TWIN(%o1, %o4, %o5)
-	add	%o1, 16, %o1
-	LOAD_TWIN(%o1, %g2, %g3)
-	add	%o1, 16 + 32, %o1
-	LOAD(prefetch, %o1, #one_read)
-	sub	%o1, 32, %o1
-	STORE_INIT(%o4, %o0 + 0x00)		! initializes cache line
-	STORE_INIT(%o5, %o0 + 0x08)
-	LOAD_TWIN(%o1, %o4, %o5)
-	add	%o1, 16, %o1
-	STORE_INIT(%g2, %o0 + 0x10)
-	STORE_INIT(%g3, %o0 + 0x18)
-	LOAD_TWIN(%o1, %g2, %g3)
-	add	%o1, 16, %o1
-	STORE_INIT(%o4, %o0 + 0x20)
-	STORE_INIT(%o5, %o0 + 0x28)
-	STORE_INIT(%g2, %o0 + 0x30)
-	STORE_INIT(%g3, %o0 + 0x38)
-	subcc	%g1, 64, %g1
-	bne,pt	%XCC, 1b
-	 add	%o0, 64, %o0
-	/* fall through */
-
-60:
-	/* %o2 contains any final bytes still needed to be copied
-	 * over. If anything is left, we copy it one byte at a time.
-	 */
-	wr		%g0, ASI_PNF, %asi
-	brz,pt		%o2, 85f
-	 sub		%o0, %o1, %o3
-	ba,a,pt		%XCC, 90f
-
-	.align		64
-70: /* 16 < len <= 64 */
-	bne,pn		%XCC, 75f
-	 sub		%o0, %o1, %o3
-
-72:
-	andn		%o2, 0xf, %o4
-	and		%o2, 0xf, %o2
-1:	subcc		%o4, 0x10, %o4
-	LOAD(ldx, %o1, %o5)
-	add		%o1, 0x08, %o1
-	LOAD(ldx, %o1, %g1)
-	sub		%o1, 0x08, %o1
-	STORE(stx, %o5, %o1 + %o3)
-	add		%o1, 0x8, %o1
-	STORE(stx, %g1, %o1 + %o3)
-	bgu,pt		%XCC, 1b
-	 add		%o1, 0x8, %o1
-73:	andcc		%o2, 0x8, %g0
-	be,pt		%XCC, 1f
-	 nop
-	sub		%o2, 0x8, %o2
-	LOAD(ldx, %o1, %o5)
-	STORE(stx, %o5, %o1 + %o3)
-	add		%o1, 0x8, %o1
-1:	andcc		%o2, 0x4, %g0
-	be,pt		%XCC, 1f
-	 nop
-	sub		%o2, 0x4, %o2
-	LOAD(lduw, %o1, %o5)
-	STORE(stw, %o5, %o1 + %o3)
-	add		%o1, 0x4, %o1
-1:	cmp		%o2, 0
-	be,pt		%XCC, 85f
-	 nop
-	ba,pt		%XCC, 90f
-	 nop
-
-75:
-	andcc		%o0, 0x7, %g1
-	sub		%g1, 0x8, %g1
-	be,pn		%icc, 2f
-	 sub		%g0, %g1, %g1
-	sub		%o2, %g1, %o2
-
-1:	subcc		%g1, 1, %g1
-	LOAD(ldub, %o1, %o5)
-	STORE(stb, %o5, %o1 + %o3)
-	bgu,pt		%icc, 1b
-	 add		%o1, 1, %o1
-
-2:	add		%o1, %o3, %o0
-	andcc		%o1, 0x7, %g1
-	bne,pt		%icc, 8f
-	 sll		%g1, 3, %g1
-
-	cmp		%o2, 16
-	bgeu,pt		%icc, 72b
-	 nop
-	ba,a,pt		%XCC, 73b
-
-8:	mov		64, %o3
-	andn		%o1, 0x7, %o1
-	LOAD(ldx, %o1, %g2)
-	sub		%o3, %g1, %o3
-	andn		%o2, 0x7, %o4
-	sllx		%g2, %g1, %g2
-1:	add		%o1, 0x8, %o1
-	LOAD(ldx, %o1, %g3)
-	subcc		%o4, 0x8, %o4
-	srlx		%g3, %o3, %o5
-	or		%o5, %g2, %o5
-	STORE(stx, %o5, %o0)
-	add		%o0, 0x8, %o0
-	bgu,pt		%icc, 1b
-	 sllx		%g3, %g1, %g2
-
-	srl		%g1, 3, %g1
-	andcc		%o2, 0x7, %o2
-	be,pn		%icc, 85f
-	 add		%o1, %g1, %o1
-	ba,pt		%XCC, 90f
-	 sub		%o0, %o1, %o3
-
-	.align		64
-80: /* 0 < len <= 16 */
-	andcc		%o3, 0x3, %g0
-	bne,pn		%XCC, 90f
-	 sub		%o0, %o1, %o3
-
-1:
-	subcc		%o2, 4, %o2
-	LOAD(lduw, %o1, %g1)
-	STORE(stw, %g1, %o1 + %o3)
-	bgu,pt		%XCC, 1b
-	 add		%o1, 4, %o1
-
-85:	retl
-	 mov		%g5, %o0
-
-	.align		32
-90:
-	subcc		%o2, 1, %o2
-	LOAD(ldub, %o1, %g1)
-	STORE(stb, %g1, %o1 + %o3)
-	bgu,pt		%XCC, 90b
-	 add		%o1, 1, %o1
-	retl
-	 mov		%g5, %o0
-
-END(memcpy)
-
-libc_hidden_builtin_def (memcpy)