Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 08:31:55 +00:00
Code Issues Packages Projects Releases Wiki Activity
e6e4f42eb7
linux/arch/sparc/lib/NG2memcpy.S
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

595 lines
15 KiB
ArmAsm
Raw Blame History

/* SPDX-License-Identifier: GPL-2.0 */
/* NG2memcpy.S: Niagara-2 optimized memcpy.
*
* Copyright (C) 2007 David S. Miller (davem@davemloft.net)
*/
#ifdef __KERNEL__
#include <linux/linkage.h>
#include <asm/visasm.h>
#include <asm/asi.h>
#define GLOBAL_SPARE %g7
#else
#define ASI_PNF 0x82
#define ASI_BLK_P 0xf0
#define ASI_BLK_INIT_QUAD_LDD_P 0xe2
#define FPRS_FEF 0x04
#ifdef MEMCPY_DEBUG
#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \
clr %g1; clr %g2; clr %g3; clr %g5; subcc %g0, %g0, %g0;
#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
#else
#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
#endif
#define GLOBAL_SPARE %g5
#endif
#ifndef STORE_ASI
#ifndef SIMULATE_NIAGARA_ON_NON_NIAGARA
#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_P
#else
#define STORE_ASI 0x80 /* ASI_P */
#endif
#endif
#ifndef EX_LD
#define EX_LD(x,y) x
#endif
#ifndef EX_LD_FP
#define EX_LD_FP(x,y) x
#endif
#ifndef EX_ST
#define EX_ST(x,y) x
#endif
#ifndef EX_ST_FP
#define EX_ST_FP(x,y) x
#endif
#ifndef LOAD
#define LOAD(type,addr,dest) type [addr], dest
#endif
#ifndef LOAD_BLK
#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_P, dest
#endif
#ifndef STORE
#ifndef MEMCPY_DEBUG
#define STORE(type,src,addr) type src, [addr]
#else
#define STORE(type,src,addr) type##a src, [addr] 0x80
#endif
#endif
#ifndef STORE_BLK
#define STORE_BLK(src,addr) stda src, [addr] ASI_BLK_P
#endif
#ifndef STORE_INIT
#define STORE_INIT(src,addr) stxa src, [addr] STORE_ASI
#endif
#ifndef FUNC_NAME
#define FUNC_NAME NG2memcpy
#endif
#ifndef PREAMBLE
#define PREAMBLE
#endif
#ifndef XCC
#define XCC xcc
#endif
#define FREG_FROB(x0, x1, x2, x3, x4, x5, x6, x7, x8) \
faligndata %x0, %x1, %f0; \
faligndata %x1, %x2, %f2; \
faligndata %x2, %x3, %f4; \
faligndata %x3, %x4, %f6; \
faligndata %x4, %x5, %f8; \
faligndata %x5, %x6, %f10; \
faligndata %x6, %x7, %f12; \
faligndata %x7, %x8, %f14;
#define FREG_MOVE_1(x0) \
fsrc2 %x0, %f0;
#define FREG_MOVE_2(x0, x1) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2;
#define FREG_MOVE_3(x0, x1, x2) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2; \
fsrc2 %x2, %f4;
#define FREG_MOVE_4(x0, x1, x2, x3) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2; \
fsrc2 %x2, %f4; \
fsrc2 %x3, %f6;
#define FREG_MOVE_5(x0, x1, x2, x3, x4) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2; \
fsrc2 %x2, %f4; \
fsrc2 %x3, %f6; \
fsrc2 %x4, %f8;
#define FREG_MOVE_6(x0, x1, x2, x3, x4, x5) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2; \
fsrc2 %x2, %f4; \
fsrc2 %x3, %f6; \
fsrc2 %x4, %f8; \
fsrc2 %x5, %f10;
#define FREG_MOVE_7(x0, x1, x2, x3, x4, x5, x6) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2; \
fsrc2 %x2, %f4; \
fsrc2 %x3, %f6; \
fsrc2 %x4, %f8; \
fsrc2 %x5, %f10; \
fsrc2 %x6, %f12;
#define FREG_MOVE_8(x0, x1, x2, x3, x4, x5, x6, x7) \
fsrc2 %x0, %f0; \
fsrc2 %x1, %f2; \
fsrc2 %x2, %f4; \
fsrc2 %x3, %f6; \
fsrc2 %x4, %f8; \
fsrc2 %x5, %f10; \
fsrc2 %x6, %f12; \
fsrc2 %x7, %f14;
#define FREG_LOAD_1(base, x0) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1)
#define FREG_LOAD_2(base, x0, x1) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1);
#define FREG_LOAD_3(base, x0, x1, x2) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1);
#define FREG_LOAD_4(base, x0, x1, x2, x3) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1);
#define FREG_LOAD_5(base, x0, x1, x2, x3, x4) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1);
#define FREG_LOAD_6(base, x0, x1, x2, x3, x4, x5) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x28, %x5), NG2_retl_o2_plus_g1);
#define FREG_LOAD_7(base, x0, x1, x2, x3, x4, x5, x6) \
EX_LD_FP(LOAD(ldd, base + 0x00, %x0), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x08, %x1), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x10, %x2), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x18, %x3), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x20, %x4), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x28, %x5), NG2_retl_o2_plus_g1); \
EX_LD_FP(LOAD(ldd, base + 0x30, %x6), NG2_retl_o2_plus_g1);
.register %g2,#scratch
.register %g3,#scratch
.text
#ifndef EX_RETVAL
#define EX_RETVAL(x) x
__restore_fp:
VISExitHalf
__restore_asi:
retl
wr %g0, ASI_AIUS, %asi
ENTRY(NG2_retl_o2)
ba,pt %xcc, __restore_asi
mov %o2, %o0
ENDPROC(NG2_retl_o2)
ENTRY(NG2_retl_o2_plus_1)
ba,pt %xcc, __restore_asi
add %o2, 1, %o0
ENDPROC(NG2_retl_o2_plus_1)
ENTRY(NG2_retl_o2_plus_4)
ba,pt %xcc, __restore_asi
add %o2, 4, %o0
ENDPROC(NG2_retl_o2_plus_4)
ENTRY(NG2_retl_o2_plus_8)
ba,pt %xcc, __restore_asi
add %o2, 8, %o0
ENDPROC(NG2_retl_o2_plus_8)
ENTRY(NG2_retl_o2_plus_o4_plus_1)
add %o4, 1, %o4
ba,pt %xcc, __restore_asi
add %o2, %o4, %o0
ENDPROC(NG2_retl_o2_plus_o4_plus_1)
ENTRY(NG2_retl_o2_plus_o4_plus_8)
add %o4, 8, %o4
ba,pt %xcc, __restore_asi
add %o2, %o4, %o0
ENDPROC(NG2_retl_o2_plus_o4_plus_8)
ENTRY(NG2_retl_o2_plus_o4_plus_16)
add %o4, 16, %o4
ba,pt %xcc, __restore_asi
add %o2, %o4, %o0
ENDPROC(NG2_retl_o2_plus_o4_plus_16)
ENTRY(NG2_retl_o2_plus_g1_fp)
ba,pt %xcc, __restore_fp
add %o2, %g1, %o0
ENDPROC(NG2_retl_o2_plus_g1_fp)
ENTRY(NG2_retl_o2_plus_g1_plus_64_fp)
add %g1, 64, %g1
ba,pt %xcc, __restore_fp
add %o2, %g1, %o0
ENDPROC(NG2_retl_o2_plus_g1_plus_64_fp)
ENTRY(NG2_retl_o2_plus_g1_plus_1)
add %g1, 1, %g1
ba,pt %xcc, __restore_asi
add %o2, %g1, %o0
ENDPROC(NG2_retl_o2_plus_g1_plus_1)
ENTRY(NG2_retl_o2_and_7_plus_o4)
and %o2, 7, %o2
ba,pt %xcc, __restore_asi
add %o2, %o4, %o0
ENDPROC(NG2_retl_o2_and_7_plus_o4)
ENTRY(NG2_retl_o2_and_7_plus_o4_plus_8)
and %o2, 7, %o2
add %o4, 8, %o4
ba,pt %xcc, __restore_asi
add %o2, %o4, %o0
ENDPROC(NG2_retl_o2_and_7_plus_o4_plus_8)
#endif
.align 64
.globl FUNC_NAME
.type FUNC_NAME,#function
FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
srlx %o2, 31, %g2
cmp %g2, 0
tne %xcc, 5
PREAMBLE
mov %o0, %o3
cmp %o2, 0
be,pn %XCC, 85f
or %o0, %o1, GLOBAL_SPARE
cmp %o2, 16
blu,a,pn %XCC, 80f
or GLOBAL_SPARE, %o2, GLOBAL_SPARE
/* 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.
*
* However, the cut-off point, performance wise, is around
* 4 64-byte blocks.
*/
cmp %o2, (4 * 64)
blu,pt %XCC, 75f
andcc GLOBAL_SPARE, 0x7, %g0
/* %o0: dst
* %o1: src
* %o2: len (known to be >= 128)
*
* The block copy loops can use %o4, %g2, %g3 as
* temporaries while copying the data. %o5 must
* be preserved between VISEntryHalf and VISExitHalf
*/
LOAD(prefetch, %o1 + 0x000, #one_read)
LOAD(prefetch, %o1 + 0x040, #one_read)
LOAD(prefetch, %o1 + 0x080, #one_read)
/* 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
EX_LD(LOAD(ldub, %o1, %g1), NG2_retl_o2_plus_o4_plus_1)
EX_ST(STORE(stb, %g1, %o0), NG2_retl_o2_plus_o4_plus_1)
add %o1, 1, %o1
bne,pt %XCC, 1b
add %o0, 1, %o0
2:
/* Clobbers o5/g1/g2/g3/g7/icc/xcc. We must preserve
* o5 from here until we hit VISExitHalf.
*/
VISEntryHalf
membar #Sync
alignaddr %o1, %g0, %g0
add %o1, (64 - 1), %o4
andn %o4, (64 - 1), %o4
andn %o2, (64 - 1), %g1
sub %o2, %g1, %o2
and %o1, (64 - 1), %g2
add %o1, %g1, %o1
sub %o0, %o4, %g3
brz,pt %g2, 190f
cmp %g2, 32
blu,a 5f
cmp %g2, 16
cmp %g2, 48
blu,a 4f
cmp %g2, 40
cmp %g2, 56
blu 170f
nop
ba,a,pt %xcc, 180f
nop
4: /* 32 <= low bits < 48 */
blu 150f
nop
ba,a,pt %xcc, 160f
nop
5: /* 0 < low bits < 32 */
blu,a 6f
cmp %g2, 8
cmp %g2, 24
blu 130f
nop
ba,a,pt %xcc, 140f
nop
6: /* 0 < low bits < 16 */
bgeu 120f
nop
/* fall through for 0 < low bits < 8 */
110: sub %o4, 64, %g2
EX_LD_FP(LOAD_BLK(%g2, %f0), NG2_retl_o2_plus_g1)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f4, f6, f8, f10, f12, f14, f16)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_8(f16, f18, f20, f22, f24, f26, f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
120: sub %o4, 56, %g2
FREG_LOAD_7(%g2, f0, f2, f4, f6, f8, f10, f12)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f4, f6, f8, f10, f12, f16, f18)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_7(f18, f20, f22, f24, f26, f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
130: sub %o4, 48, %g2
FREG_LOAD_6(%g2, f0, f2, f4, f6, f8, f10)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f4, f6, f8, f10, f16, f18, f20)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_6(f20, f22, f24, f26, f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
140: sub %o4, 40, %g2
FREG_LOAD_5(%g2, f0, f2, f4, f6, f8)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f4, f6, f8, f16, f18, f20, f22)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_5(f22, f24, f26, f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
150: sub %o4, 32, %g2
FREG_LOAD_4(%g2, f0, f2, f4, f6)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f4, f6, f16, f18, f20, f22, f24)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_4(f24, f26, f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
160: sub %o4, 24, %g2
FREG_LOAD_3(%g2, f0, f2, f4)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f4, f16, f18, f20, f22, f24, f26)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_3(f26, f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
170: sub %o4, 16, %g2
FREG_LOAD_2(%g2, f0, f2)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f2, f16, f18, f20, f22, f24, f26, f28)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_2(f28, f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
180: sub %o4, 8, %g2
FREG_LOAD_1(%g2, f0)
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
EX_LD_FP(LOAD_BLK(%o4, %f16), NG2_retl_o2_plus_g1)
FREG_FROB(f0, f16, f18, f20, f22, f24, f26, f28, f30)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1)
FREG_MOVE_1(f30)
subcc %g1, 64, %g1
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
ba,pt %xcc, 195f
nop
190:
1: EX_ST_FP(STORE_INIT(%g0, %o4 + %g3), NG2_retl_o2_plus_g1)
subcc %g1, 64, %g1
EX_LD_FP(LOAD_BLK(%o4, %f0), NG2_retl_o2_plus_g1_plus_64)
EX_ST_FP(STORE_BLK(%f0, %o4 + %g3), NG2_retl_o2_plus_g1_plus_64)
add %o4, 64, %o4
bne,pt %xcc, 1b
LOAD(prefetch, %o4 + 64, #one_read)
195:
add %o4, %g3, %o0
membar #Sync
VISExitHalf
/* %o2 contains any final bytes still needed to be copied
* over. If anything is left, we copy it one byte at a time.
*/
brz,pt %o2, 85f
sub %o0, %o1, GLOBAL_SPARE
ba,a,pt %XCC, 90f
nop
.align 64
75: /* 16 < len <= 64 */
bne,pn %XCC, 75f
sub %o0, %o1, GLOBAL_SPARE
72:
andn %o2, 0xf, %o4
and %o2, 0xf, %o2
1: subcc %o4, 0x10, %o4
EX_LD(LOAD(ldx, %o1, %o5), NG2_retl_o2_plus_o4_plus_16)
add %o1, 0x08, %o1
EX_LD(LOAD(ldx, %o1, %g1), NG2_retl_o2_plus_o4_plus_16)
sub %o1, 0x08, %o1
EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_o4_plus_16)
add %o1, 0x8, %o1
EX_ST(STORE(stx, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_o4_plus_8)
bgu,pt %XCC, 1b
add %o1, 0x8, %o1
73: andcc %o2, 0x8, %g0
be,pt %XCC, 1f
nop
sub %o2, 0x8, %o2
EX_LD(LOAD(ldx, %o1, %o5), NG2_retl_o2_plus_8)
EX_ST(STORE(stx, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_8)
add %o1, 0x8, %o1
1: andcc %o2, 0x4, %g0
be,pt %XCC, 1f
nop
sub %o2, 0x4, %o2
EX_LD(LOAD(lduw, %o1, %o5), NG2_retl_o2_plus_4)
EX_ST(STORE(stw, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_4)
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
EX_LD(LOAD(ldub, %o1, %o5), NG2_retl_o2_plus_g1_plus_1)
EX_ST(STORE(stb, %o5, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_g1_plus_1)
bgu,pt %icc, 1b
add %o1, 1, %o1
2: add %o1, GLOBAL_SPARE, %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, GLOBAL_SPARE
andn %o1, 0x7, %o1
EX_LD(LOAD(ldx, %o1, %g2), NG2_retl_o2)
sub GLOBAL_SPARE, %g1, GLOBAL_SPARE
andn %o2, 0x7, %o4
sllx %g2, %g1, %g2
1: add %o1, 0x8, %o1
EX_LD(LOAD(ldx, %o1, %g3), NG2_retl_o2_and_7_plus_o4)
subcc %o4, 0x8, %o4
srlx %g3, GLOBAL_SPARE, %o5
or %o5, %g2, %o5
EX_ST(STORE(stx, %o5, %o0), NG2_retl_o2_and_7_plus_o4_plus_8)
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, GLOBAL_SPARE
.align 64
80: /* 0 < len <= 16 */
andcc GLOBAL_SPARE, 0x3, %g0
bne,pn %XCC, 90f
sub %o0, %o1, GLOBAL_SPARE
1:
subcc %o2, 4, %o2
EX_LD(LOAD(lduw, %o1, %g1), NG2_retl_o2_plus_4)
EX_ST(STORE(stw, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_4)
bgu,pt %XCC, 1b
add %o1, 4, %o1
85: retl
mov EX_RETVAL(%o3), %o0
.align 32
90:
subcc %o2, 1, %o2
EX_LD(LOAD(ldub, %o1, %g1), NG2_retl_o2_plus_1)
EX_ST(STORE(stb, %g1, %o1 + GLOBAL_SPARE), NG2_retl_o2_plus_1)
bgu,pt %XCC, 90b
add %o1, 1, %o1
retl
mov EX_RETVAL(%o3), %o0
.size FUNC_NAME, .-FUNC_NAME
Reference in New Issue View Git Blame Copy Permalink