84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
1627 lines
31 KiB
ArmAsm
1627 lines
31 KiB
ArmAsm
/* $NetBSD: memcpy.S,v 1.2 2013/03/17 02:13:10 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1996-2002 Eduardo Horvath
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*
|
|
*/
|
|
#include "strmacros.h"
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
RCSID("$NetBSD: memcpy.S,v 1.2 2013/03/17 02:13:10 christos Exp $")
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
/*
|
|
* memcpy
|
|
* Assumes regions do not overlap;
|
|
*
|
|
* Must not use %g7 (see copyin/copyout above).
|
|
*/
|
|
ENTRY(memcpy) /* dest, src, size */
|
|
/*
|
|
* Swap args for bcopy. Gcc generates calls to memcpy for
|
|
* structure assignments.
|
|
*/
|
|
mov %o0, %o3
|
|
mov %o1, %o0
|
|
mov %o3, %o1
|
|
#if !defined(_KERNEL) || defined(_RUMPKERNEL)
|
|
ENTRY(bcopy) /* src, dest, size */
|
|
#endif
|
|
#ifdef DEBUG
|
|
#if defined(_KERNEL) && !defined(_RUMPKERNEL)
|
|
set pmapdebug, %o4
|
|
ld [%o4], %o4
|
|
btst 0x80, %o4 ! PDB_COPY
|
|
bz,pt %icc, 3f
|
|
nop
|
|
#endif
|
|
save %sp, -CC64FSZ, %sp
|
|
mov %i0, %o1
|
|
set 2f, %o0
|
|
mov %i1, %o2
|
|
call printf
|
|
mov %i2, %o3
|
|
! ta 1; nop
|
|
restore
|
|
.data
|
|
2: .asciz "memcpy(%p<-%p,%x)\n"
|
|
_ALIGN
|
|
.text
|
|
3:
|
|
#endif
|
|
|
|
cmp %o2, BCOPY_SMALL
|
|
|
|
Lmemcpy_start:
|
|
bge,pt CCCR, 2f ! if >= this many, go be fancy.
|
|
cmp %o2, 256
|
|
|
|
mov %o1, %o5 ! Save memcpy return value
|
|
/*
|
|
* Not much to copy, just do it a byte at a time.
|
|
*/
|
|
deccc %o2 ! while (--len >= 0)
|
|
bl 1f
|
|
.empty
|
|
0:
|
|
inc %o0
|
|
ldsb [%o0 - 1], %o4 ! (++dst)[-1] = *src++;
|
|
stb %o4, [%o1]
|
|
deccc %o2
|
|
bge 0b
|
|
inc %o1
|
|
1:
|
|
retl
|
|
mov %o5, %o0
|
|
NOTREACHED
|
|
|
|
/*
|
|
* Plenty of data to copy, so try to do it optimally.
|
|
*/
|
|
2:
|
|
#ifdef USE_BLOCK_STORE_LOAD
|
|
! If it is big enough, use VIS instructions
|
|
bge Lmemcpy_block
|
|
nop
|
|
#endif /* USE_BLOCK_STORE_LOAD */
|
|
Lmemcpy_fancy:
|
|
|
|
!!
|
|
!! First align the output to a 8-byte entity
|
|
!!
|
|
|
|
save %sp, -CC64FSZ, %sp
|
|
|
|
mov %i0, %l0
|
|
mov %i1, %l1
|
|
|
|
mov %i2, %l2
|
|
btst 1, %l1
|
|
|
|
bz,pt %icc, 4f
|
|
btst 2, %l1
|
|
ldub [%l0], %l4 ! Load 1st byte
|
|
|
|
deccc 1, %l2
|
|
ble,pn CCCR, Lmemcpy_finish ! XXXX
|
|
inc 1, %l0
|
|
|
|
stb %l4, [%l1] ! Store 1st byte
|
|
inc 1, %l1 ! Update address
|
|
btst 2, %l1
|
|
4:
|
|
bz,pt %icc, 4f
|
|
|
|
btst 1, %l0
|
|
bz,a 1f
|
|
lduh [%l0], %l4 ! Load short
|
|
|
|
ldub [%l0], %l4 ! Load bytes
|
|
|
|
ldub [%l0+1], %l3
|
|
sllx %l4, 8, %l4
|
|
or %l3, %l4, %l4
|
|
|
|
1:
|
|
deccc 2, %l2
|
|
ble,pn CCCR, Lmemcpy_finish ! XXXX
|
|
inc 2, %l0
|
|
sth %l4, [%l1] ! Store 1st short
|
|
|
|
inc 2, %l1
|
|
4:
|
|
btst 4, %l1
|
|
bz,pt CCCR, 4f
|
|
|
|
btst 3, %l0
|
|
bz,a,pt CCCR, 1f
|
|
lduw [%l0], %l4 ! Load word -1
|
|
|
|
btst 1, %l0
|
|
bz,a,pt %icc, 2f
|
|
lduh [%l0], %l4
|
|
|
|
ldub [%l0], %l4
|
|
|
|
lduh [%l0+1], %l3
|
|
sllx %l4, 16, %l4
|
|
or %l4, %l3, %l4
|
|
|
|
ldub [%l0+3], %l3
|
|
sllx %l4, 8, %l4
|
|
ba,pt %icc, 1f
|
|
or %l4, %l3, %l4
|
|
|
|
2:
|
|
lduh [%l0+2], %l3
|
|
sllx %l4, 16, %l4
|
|
or %l4, %l3, %l4
|
|
|
|
1:
|
|
deccc 4, %l2
|
|
ble,pn CCCR, Lmemcpy_finish ! XXXX
|
|
inc 4, %l0
|
|
|
|
st %l4, [%l1] ! Store word
|
|
inc 4, %l1
|
|
4:
|
|
!!
|
|
!! We are now 32-bit aligned in the dest.
|
|
!!
|
|
Lmemcpy_common:
|
|
|
|
and %l0, 7, %l4 ! Shift amount
|
|
andn %l0, 7, %l0 ! Source addr
|
|
|
|
brz,pt %l4, Lmemcpy_noshift8 ! No shift version...
|
|
|
|
sllx %l4, 3, %l4 ! In bits
|
|
mov 8<<3, %l3
|
|
|
|
ldx [%l0], %o0 ! Load word -1
|
|
sub %l3, %l4, %l3 ! Reverse shift
|
|
deccc 12*8, %l2 ! Have enough room?
|
|
|
|
sllx %o0, %l4, %o0
|
|
bl,pn CCCR, 2f
|
|
and %l3, 0x38, %l3
|
|
Lmemcpy_unrolled8:
|
|
|
|
/*
|
|
* This is about as close to optimal as you can get, since
|
|
* the shifts require EU0 and cannot be paired, and you have
|
|
* 3 dependent operations on the data.
|
|
*/
|
|
|
|
! ldx [%l0+0*8], %o0 ! Already done
|
|
! sllx %o0, %l4, %o0 ! Already done
|
|
ldx [%l0+1*8], %o1
|
|
ldx [%l0+2*8], %o2
|
|
ldx [%l0+3*8], %o3
|
|
ldx [%l0+4*8], %o4
|
|
ba,pt %icc, 1f
|
|
ldx [%l0+5*8], %o5
|
|
.align 8
|
|
1:
|
|
srlx %o1, %l3, %g1
|
|
inc 6*8, %l0
|
|
|
|
sllx %o1, %l4, %o1
|
|
or %g1, %o0, %g6
|
|
ldx [%l0+0*8], %o0
|
|
|
|
stx %g6, [%l1+0*8]
|
|
srlx %o2, %l3, %g1
|
|
|
|
sllx %o2, %l4, %o2
|
|
or %g1, %o1, %g6
|
|
ldx [%l0+1*8], %o1
|
|
|
|
stx %g6, [%l1+1*8]
|
|
srlx %o3, %l3, %g1
|
|
|
|
sllx %o3, %l4, %o3
|
|
or %g1, %o2, %g6
|
|
ldx [%l0+2*8], %o2
|
|
|
|
stx %g6, [%l1+2*8]
|
|
srlx %o4, %l3, %g1
|
|
|
|
sllx %o4, %l4, %o4
|
|
or %g1, %o3, %g6
|
|
ldx [%l0+3*8], %o3
|
|
|
|
stx %g6, [%l1+3*8]
|
|
srlx %o5, %l3, %g1
|
|
|
|
sllx %o5, %l4, %o5
|
|
or %g1, %o4, %g6
|
|
ldx [%l0+4*8], %o4
|
|
|
|
stx %g6, [%l1+4*8]
|
|
srlx %o0, %l3, %g1
|
|
deccc 6*8, %l2 ! Have enough room?
|
|
|
|
sllx %o0, %l4, %o0 ! Next loop
|
|
or %g1, %o5, %g6
|
|
ldx [%l0+5*8], %o5
|
|
|
|
stx %g6, [%l1+5*8]
|
|
bge,pt CCCR, 1b
|
|
inc 6*8, %l1
|
|
|
|
Lmemcpy_unrolled8_cleanup:
|
|
!!
|
|
!! Finished 8 byte block, unload the regs.
|
|
!!
|
|
srlx %o1, %l3, %g1
|
|
inc 5*8, %l0
|
|
|
|
sllx %o1, %l4, %o1
|
|
or %g1, %o0, %g6
|
|
|
|
stx %g6, [%l1+0*8]
|
|
srlx %o2, %l3, %g1
|
|
|
|
sllx %o2, %l4, %o2
|
|
or %g1, %o1, %g6
|
|
|
|
stx %g6, [%l1+1*8]
|
|
srlx %o3, %l3, %g1
|
|
|
|
sllx %o3, %l4, %o3
|
|
or %g1, %o2, %g6
|
|
|
|
stx %g6, [%l1+2*8]
|
|
srlx %o4, %l3, %g1
|
|
|
|
sllx %o4, %l4, %o4
|
|
or %g1, %o3, %g6
|
|
|
|
stx %g6, [%l1+3*8]
|
|
srlx %o5, %l3, %g1
|
|
|
|
sllx %o5, %l4, %o5
|
|
or %g1, %o4, %g6
|
|
|
|
stx %g6, [%l1+4*8]
|
|
inc 5*8, %l1
|
|
|
|
mov %o5, %o0 ! Save our unused data
|
|
dec 5*8, %l2
|
|
2:
|
|
inccc 12*8, %l2
|
|
bz,pn %icc, Lmemcpy_complete
|
|
|
|
!! Unrolled 8 times
|
|
Lmemcpy_aligned8:
|
|
! ldx [%l0], %o0 ! Already done
|
|
! sllx %o0, %l4, %o0 ! Shift high word
|
|
|
|
deccc 8, %l2 ! Pre-decrement
|
|
bl,pn CCCR, Lmemcpy_finish
|
|
1:
|
|
ldx [%l0+8], %o1 ! Load word 0
|
|
inc 8, %l0
|
|
|
|
srlx %o1, %l3, %g6
|
|
or %g6, %o0, %g6 ! Combine
|
|
|
|
stx %g6, [%l1] ! Store result
|
|
inc 8, %l1
|
|
|
|
deccc 8, %l2
|
|
bge,pn CCCR, 1b
|
|
sllx %o1, %l4, %o0
|
|
|
|
btst 7, %l2 ! Done?
|
|
bz,pt CCCR, Lmemcpy_complete
|
|
|
|
!!
|
|
!! Loadup the last dregs into %o0 and shift it into place
|
|
!!
|
|
srlx %l3, 3, %g6 ! # bytes in %o0
|
|
dec 8, %g6 ! - 8
|
|
!! n-8 - (by - 8) -> n - by
|
|
subcc %l2, %g6, %g0 ! # bytes we need
|
|
ble,pt %icc, Lmemcpy_finish
|
|
nop
|
|
ldx [%l0+8], %o1 ! Need another word
|
|
srlx %o1, %l3, %o1
|
|
ba,pt %icc, Lmemcpy_finish
|
|
or %o0, %o1, %o0 ! All loaded up.
|
|
|
|
Lmemcpy_noshift8:
|
|
deccc 6*8, %l2 ! Have enough room?
|
|
bl,pn CCCR, 2f
|
|
nop
|
|
ba,pt %icc, 1f
|
|
nop
|
|
.align 32
|
|
1:
|
|
ldx [%l0+0*8], %o0
|
|
ldx [%l0+1*8], %o1
|
|
ldx [%l0+2*8], %o2
|
|
stx %o0, [%l1+0*8]
|
|
stx %o1, [%l1+1*8]
|
|
stx %o2, [%l1+2*8]
|
|
|
|
|
|
ldx [%l0+3*8], %o3
|
|
ldx [%l0+4*8], %o4
|
|
ldx [%l0+5*8], %o5
|
|
inc 6*8, %l0
|
|
stx %o3, [%l1+3*8]
|
|
deccc 6*8, %l2
|
|
stx %o4, [%l1+4*8]
|
|
stx %o5, [%l1+5*8]
|
|
bge,pt CCCR, 1b
|
|
inc 6*8, %l1
|
|
2:
|
|
inc 6*8, %l2
|
|
1:
|
|
deccc 8, %l2
|
|
bl,pn %icc, 1f ! < 0 --> sub word
|
|
nop
|
|
ldx [%l0], %g6
|
|
inc 8, %l0
|
|
stx %g6, [%l1]
|
|
bg,pt %icc, 1b ! Exactly 0 --> done
|
|
inc 8, %l1
|
|
1:
|
|
btst 7, %l2 ! Done?
|
|
bz,pt CCCR, Lmemcpy_complete
|
|
clr %l4
|
|
ldx [%l0], %o0
|
|
Lmemcpy_finish:
|
|
|
|
brz,pn %l2, 2f ! 100% complete?
|
|
cmp %l2, 8 ! Exactly 8 bytes?
|
|
bz,a,pn CCCR, 2f
|
|
stx %o0, [%l1]
|
|
|
|
btst 4, %l2 ! Word store?
|
|
bz CCCR, 1f
|
|
srlx %o0, 32, %g6 ! Shift high word down
|
|
stw %g6, [%l1]
|
|
inc 4, %l1
|
|
mov %o0, %g6 ! Operate on the low bits
|
|
1:
|
|
btst 2, %l2
|
|
mov %g6, %o0
|
|
bz 1f
|
|
srlx %o0, 16, %g6
|
|
|
|
sth %g6, [%l1] ! Store short
|
|
inc 2, %l1
|
|
mov %o0, %g6 ! Operate on low bytes
|
|
1:
|
|
mov %g6, %o0
|
|
btst 1, %l2 ! Byte aligned?
|
|
bz 2f
|
|
srlx %o0, 8, %g6
|
|
|
|
stb %g6, [%l1] ! Store last byte
|
|
inc 1, %l1 ! Update address
|
|
2:
|
|
Lmemcpy_complete:
|
|
#if 0
|
|
!!
|
|
!! verify copy success.
|
|
!!
|
|
|
|
mov %i0, %o2
|
|
mov %i1, %o4
|
|
mov %i2, %l4
|
|
0:
|
|
ldub [%o2], %o1
|
|
inc %o2
|
|
ldub [%o4], %o3
|
|
inc %o4
|
|
cmp %o3, %o1
|
|
bnz 1f
|
|
dec %l4
|
|
brnz %l4, 0b
|
|
nop
|
|
ba 2f
|
|
nop
|
|
|
|
1:
|
|
set 0f, %o0
|
|
call printf
|
|
sub %i2, %l4, %o5
|
|
set 1f, %o0
|
|
mov %i0, %o2
|
|
mov %i1, %o1
|
|
call printf
|
|
mov %i2, %o3
|
|
ta 1
|
|
.data
|
|
0: .asciz "memcpy failed: %x@%p != %x@%p byte %d\n"
|
|
1: .asciz "memcpy(%p, %p, %lx)\n"
|
|
.align 8
|
|
.text
|
|
2:
|
|
#endif
|
|
ret
|
|
restore %i1, %g0, %o0
|
|
|
|
#ifdef USE_BLOCK_STORE_LOAD
|
|
|
|
/*
|
|
* Block copy. Useful for >256 byte copies.
|
|
*
|
|
* Benchmarking has shown this always seems to be slower than
|
|
* the integer version, so this is disabled. Maybe someone will
|
|
* figure out why sometime.
|
|
*/
|
|
|
|
Lmemcpy_block:
|
|
sethi %hi(block_disable), %o3
|
|
ldx [ %o3 + %lo(block_disable) ], %o3
|
|
brnz,pn %o3, Lmemcpy_fancy
|
|
!! Make sure our trap table is installed
|
|
set _C_LABEL(trapbase), %o5
|
|
rdpr %tba, %o3
|
|
sub %o3, %o5, %o3
|
|
brnz,pn %o3, Lmemcpy_fancy ! No, then don't use block load/store
|
|
nop
|
|
#if defined(_KERNEL) && !defined(_RUMPKERNEL)
|
|
/*
|
|
* Kernel:
|
|
*
|
|
* Here we use VIS instructions to do a block clear of a page.
|
|
* But before we can do that we need to save and enable the FPU.
|
|
* The last owner of the FPU registers is fplwp, and
|
|
* fplwp->l_md.md_fpstate is the current fpstate. If that's not
|
|
* null, call savefpstate() with it to store our current fp state.
|
|
*
|
|
* Next, allocate an aligned fpstate on the stack. We will properly
|
|
* nest calls on a particular stack so this should not be a problem.
|
|
*
|
|
* Now we grab either curlwp (or if we're on the interrupt stack
|
|
* lwp0). We stash its existing fpstate in a local register and
|
|
* put our new fpstate in curlwp->p_md.md_fpstate. We point
|
|
* fplwp at curlwp (or lwp0) and enable the FPU.
|
|
*
|
|
* If we are ever preempted, our FPU state will be saved in our
|
|
* fpstate. Then, when we're resumed and we take an FPDISABLED
|
|
* trap, the trap handler will be able to fish our FPU state out
|
|
* of curlwp (or lwp0).
|
|
*
|
|
* On exiting this routine we undo the damage: restore the original
|
|
* pointer to curlwp->p_md.md_fpstate, clear our fplwp, and disable
|
|
* the MMU.
|
|
*
|
|
*
|
|
* Register usage, Kernel only (after save):
|
|
*
|
|
* %i0 src
|
|
* %i1 dest
|
|
* %i2 size
|
|
*
|
|
* %l0 XXXX DEBUG old fpstate
|
|
* %l1 fplwp (hi bits only)
|
|
* %l2 orig fplwp
|
|
* %l3 orig fpstate
|
|
* %l5 curlwp
|
|
* %l6 old fpstate
|
|
*
|
|
* Register ussage, Kernel and user:
|
|
*
|
|
* %g1 src (retval for memcpy)
|
|
*
|
|
* %o0 src
|
|
* %o1 dest
|
|
* %o2 end dest
|
|
* %o5 last safe fetchable address
|
|
*/
|
|
|
|
ENABLE_FPU(0)
|
|
|
|
mov %i0, %o0 ! Src addr.
|
|
mov %i1, %o1 ! Store our dest ptr here.
|
|
mov %i2, %o2 ! Len counter
|
|
#endif /* _KERNEL */
|
|
|
|
!!
|
|
!! First align the output to a 64-bit entity
|
|
!!
|
|
|
|
mov %o1, %g1 ! memcpy retval
|
|
add %o0, %o2, %o5 ! End of source block
|
|
|
|
andn %o0, 7, %o3 ! Start of block
|
|
dec %o5
|
|
fzero %f0
|
|
|
|
andn %o5, BLOCK_ALIGN, %o5 ! Last safe addr.
|
|
ldd [%o3], %f2 ! Load 1st word
|
|
|
|
dec 8, %o3 ! Move %o3 1 word back
|
|
btst 1, %o1
|
|
bz 4f
|
|
|
|
mov -7, %o4 ! Lowest src addr possible
|
|
alignaddr %o0, %o4, %o4 ! Base addr for load.
|
|
|
|
cmp %o3, %o4
|
|
be,pt CCCR, 1f ! Already loaded?
|
|
mov %o4, %o3
|
|
fmovd %f2, %f0 ! No. Shift
|
|
ldd [%o3+8], %f2 ! And load
|
|
1:
|
|
|
|
faligndata %f0, %f2, %f4 ! Isolate 1st byte
|
|
|
|
stda %f4, [%o1] ASI_FL8_P ! Store 1st byte
|
|
inc 1, %o1 ! Update address
|
|
inc 1, %o0
|
|
dec 1, %o2
|
|
4:
|
|
btst 2, %o1
|
|
bz 4f
|
|
|
|
mov -6, %o4 ! Calculate src - 6
|
|
alignaddr %o0, %o4, %o4 ! calculate shift mask and dest.
|
|
|
|
cmp %o3, %o4 ! Addresses same?
|
|
be,pt CCCR, 1f
|
|
mov %o4, %o3
|
|
fmovd %f2, %f0 ! Shuffle data
|
|
ldd [%o3+8], %f2 ! Load word 0
|
|
1:
|
|
faligndata %f0, %f2, %f4 ! Move 1st short low part of f8
|
|
|
|
stda %f4, [%o1] ASI_FL16_P ! Store 1st short
|
|
dec 2, %o2
|
|
inc 2, %o1
|
|
inc 2, %o0
|
|
4:
|
|
brz,pn %o2, Lmemcpy_blockfinish ! XXXX
|
|
|
|
btst 4, %o1
|
|
bz 4f
|
|
|
|
mov -4, %o4
|
|
alignaddr %o0, %o4, %o4 ! calculate shift mask and dest.
|
|
|
|
cmp %o3, %o4 ! Addresses same?
|
|
beq,pt CCCR, 1f
|
|
mov %o4, %o3
|
|
fmovd %f2, %f0 ! Shuffle data
|
|
ldd [%o3+8], %f2 ! Load word 0
|
|
1:
|
|
faligndata %f0, %f2, %f4 ! Move 1st short low part of f8
|
|
|
|
st %f5, [%o1] ! Store word
|
|
dec 4, %o2
|
|
inc 4, %o1
|
|
inc 4, %o0
|
|
4:
|
|
brz,pn %o2, Lmemcpy_blockfinish ! XXXX
|
|
!!
|
|
!! We are now 32-bit aligned in the dest.
|
|
!!
|
|
Lmemcpy_block_common:
|
|
|
|
mov -0, %o4
|
|
alignaddr %o0, %o4, %o4 ! base - shift
|
|
|
|
cmp %o3, %o4 ! Addresses same?
|
|
beq,pt CCCR, 1f
|
|
mov %o4, %o3
|
|
fmovd %f2, %f0 ! Shuffle data
|
|
ldd [%o3+8], %f2 ! Load word 0
|
|
1:
|
|
add %o3, 8, %o0 ! now use %o0 for src
|
|
|
|
!!
|
|
!! Continue until our dest is block aligned
|
|
!!
|
|
Lmemcpy_block_aligned8:
|
|
1:
|
|
brz %o2, Lmemcpy_blockfinish
|
|
btst BLOCK_ALIGN, %o1 ! Block aligned?
|
|
bz 1f
|
|
|
|
faligndata %f0, %f2, %f4 ! Generate result
|
|
deccc 8, %o2
|
|
ble,pn %icc, Lmemcpy_blockfinish ! Should never happen
|
|
fmovd %f4, %f48
|
|
|
|
std %f4, [%o1] ! Store result
|
|
inc 8, %o1
|
|
|
|
fmovd %f2, %f0
|
|
inc 8, %o0
|
|
ba,pt %xcc, 1b ! Not yet.
|
|
ldd [%o0], %f2 ! Load next part
|
|
Lmemcpy_block_aligned64:
|
|
1:
|
|
|
|
/*
|
|
* 64-byte aligned -- ready for block operations.
|
|
*
|
|
* Here we have the destination block aligned, but the
|
|
* source pointer may not be. Sub-word alignment will
|
|
* be handled by faligndata instructions. But the source
|
|
* can still be potentially aligned to 8 different words
|
|
* in our 64-bit block, so we have 8 different copy routines.
|
|
*
|
|
* Once we figure out our source alignment, we branch
|
|
* to the appropriate copy routine, which sets up the
|
|
* alignment for faligndata and loads (sets) the values
|
|
* into the source registers and does the copy loop.
|
|
*
|
|
* When were down to less than 1 block to store, we
|
|
* exit the copy loop and execute cleanup code.
|
|
*
|
|
* Block loads and stores are not properly interlocked.
|
|
* Stores save one reg/cycle, so you can start overwriting
|
|
* registers the cycle after the store is issued.
|
|
*
|
|
* Block loads require a block load to a different register
|
|
* block or a membar #Sync before accessing the loaded
|
|
* data.
|
|
*
|
|
* Since the faligndata instructions may be offset as far
|
|
* as 7 registers into a block (if you are shifting source
|
|
* 7 -> dest 0), you need 3 source register blocks for full
|
|
* performance: one you are copying, one you are loading,
|
|
* and one for interlocking. Otherwise, we would need to
|
|
* sprinkle the code with membar #Sync and lose the advantage
|
|
* of running faligndata in parallel with block stores. This
|
|
* means we are fetching a full 128 bytes ahead of the stores.
|
|
* We need to make sure the prefetch does not inadvertently
|
|
* cross a page boundary and fault on data that we will never
|
|
* store.
|
|
*
|
|
*/
|
|
#if 1
|
|
and %o0, BLOCK_ALIGN, %o3
|
|
srax %o3, 3, %o3 ! Isolate the offset
|
|
|
|
brz %o3, L100 ! 0->0
|
|
btst 4, %o3
|
|
bnz %xcc, 4f
|
|
btst 2, %o3
|
|
bnz %xcc, 2f
|
|
btst 1, %o3
|
|
ba,pt %xcc, L101 ! 0->1
|
|
nop /* XXX spitfire bug */
|
|
2:
|
|
bz %xcc, L102 ! 0->2
|
|
nop
|
|
ba,pt %xcc, L103 ! 0->3
|
|
nop /* XXX spitfire bug */
|
|
4:
|
|
bnz %xcc, 2f
|
|
btst 1, %o3
|
|
bz %xcc, L104 ! 0->4
|
|
nop
|
|
ba,pt %xcc, L105 ! 0->5
|
|
nop /* XXX spitfire bug */
|
|
2:
|
|
bz %xcc, L106 ! 0->6
|
|
nop
|
|
ba,pt %xcc, L107 ! 0->7
|
|
nop /* XXX spitfire bug */
|
|
#else
|
|
|
|
!!
|
|
!! Isolate the word offset, which just happens to be
|
|
!! the slot in our jump table.
|
|
!!
|
|
!! This is 6 insns, most of which cannot be paired,
|
|
!! which is about the same as the above version.
|
|
!!
|
|
rd %pc, %o4
|
|
1:
|
|
and %o0, 0x31, %o3
|
|
add %o3, (Lmemcpy_block_jmp - 1b), %o3
|
|
jmpl %o4 + %o3, %g0
|
|
nop
|
|
|
|
!!
|
|
!! Jump table
|
|
!!
|
|
|
|
Lmemcpy_block_jmp:
|
|
ba,a,pt %xcc, L100
|
|
nop
|
|
ba,a,pt %xcc, L101
|
|
nop
|
|
ba,a,pt %xcc, L102
|
|
nop
|
|
ba,a,pt %xcc, L103
|
|
nop
|
|
ba,a,pt %xcc, L104
|
|
nop
|
|
ba,a,pt %xcc, L105
|
|
nop
|
|
ba,a,pt %xcc, L106
|
|
nop
|
|
ba,a,pt %xcc, L107
|
|
nop
|
|
#endif
|
|
|
|
!!
|
|
!! Source is block aligned.
|
|
!!
|
|
!! Just load a block and go.
|
|
!!
|
|
L100:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L100"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
fmovd %f0 , %f62
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
inc BLOCK_SIZE, %o0
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 3f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
ba,pt %icc, 3f
|
|
membar #Sync
|
|
|
|
.align 32 ! ICache align.
|
|
3:
|
|
faligndata %f62, %f0, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f0, %f2, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f2, %f4, %f36
|
|
cmp %o0, %o5
|
|
faligndata %f4, %f6, %f38
|
|
faligndata %f6, %f8, %f40
|
|
faligndata %f8, %f10, %f42
|
|
faligndata %f10, %f12, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f12, %f14, %f46
|
|
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
stda %f32, [%o1] ASI_STORE
|
|
faligndata %f14, %f16, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f16, %f18, %f34
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f18, %f20, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f20, %f22, %f38
|
|
cmp %o0, %o5
|
|
faligndata %f22, %f24, %f40
|
|
faligndata %f24, %f26, %f42
|
|
faligndata %f26, %f28, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f28, %f30, %f46
|
|
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
stda %f32, [%o1] ASI_STORE
|
|
faligndata %f30, %f48, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f48, %f50, %f34
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f50, %f52, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f52, %f54, %f38
|
|
cmp %o0, %o5
|
|
faligndata %f54, %f56, %f40
|
|
faligndata %f56, %f58, %f42
|
|
faligndata %f58, %f60, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f60, %f62, %f46
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16 ! Increment is at top
|
|
membar #Sync
|
|
2:
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+8
|
|
!!
|
|
!! We need to load almost 1 complete block by hand.
|
|
!!
|
|
L101:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L101"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
! fmovd %f0, %f0 ! Hoist fmovd
|
|
ldd [%o0], %f2
|
|
inc 8, %o0
|
|
ldd [%o0], %f4
|
|
inc 8, %o0
|
|
ldd [%o0], %f6
|
|
inc 8, %o0
|
|
ldd [%o0], %f8
|
|
inc 8, %o0
|
|
ldd [%o0], %f10
|
|
inc 8, %o0
|
|
ldd [%o0], %f12
|
|
inc 8, %o0
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 3f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
3:
|
|
faligndata %f0, %f2, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f2, %f4, %f34
|
|
cmp %o0, %o5
|
|
faligndata %f4, %f6, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f6, %f8, %f38
|
|
faligndata %f8, %f10, %f40
|
|
faligndata %f10, %f12, %f42
|
|
faligndata %f12, %f14, %f44
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f14, %f16, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f16, %f18, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f18, %f20, %f34
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f20, %f22, %f36
|
|
cmp %o0, %o5
|
|
faligndata %f22, %f24, %f38
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f24, %f26, %f40
|
|
faligndata %f26, %f28, %f42
|
|
faligndata %f28, %f30, %f44
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f30, %f48, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f48, %f50, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f50, %f52, %f34
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f52, %f54, %f36
|
|
cmp %o0, %o5
|
|
faligndata %f54, %f56, %f38
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f56, %f58, %f40
|
|
faligndata %f58, %f60, %f42
|
|
faligndata %f60, %f62, %f44
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f62, %f0, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+16
|
|
!!
|
|
!! We need to load 6 doubles by hand.
|
|
!!
|
|
L102:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L102"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
ldd [%o0], %f4
|
|
inc 8, %o0
|
|
fmovd %f0, %f2 ! Hoist fmovd
|
|
ldd [%o0], %f6
|
|
inc 8, %o0
|
|
|
|
ldd [%o0], %f8
|
|
inc 8, %o0
|
|
ldd [%o0], %f10
|
|
inc 8, %o0
|
|
ldd [%o0], %f12
|
|
inc 8, %o0
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 3f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
3:
|
|
faligndata %f2, %f4, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f4, %f6, %f34
|
|
cmp %o0, %o5
|
|
faligndata %f6, %f8, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f8, %f10, %f38
|
|
faligndata %f10, %f12, %f40
|
|
faligndata %f12, %f14, %f42
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
faligndata %f14, %f16, %f44
|
|
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f16, %f18, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f18, %f20, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f20, %f22, %f34
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f22, %f24, %f36
|
|
cmp %o0, %o5
|
|
faligndata %f24, %f26, %f38
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f26, %f28, %f40
|
|
faligndata %f28, %f30, %f42
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
faligndata %f30, %f48, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f48, %f50, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f50, %f52, %f32
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f52, %f54, %f34
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f54, %f56, %f36
|
|
cmp %o0, %o5
|
|
faligndata %f56, %f58, %f38
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f58, %f60, %f40
|
|
faligndata %f60, %f62, %f42
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
faligndata %f62, %f0, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f0, %f2, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+24
|
|
!!
|
|
!! We need to load 5 doubles by hand.
|
|
!!
|
|
L103:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L103"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
fmovd %f0, %f4
|
|
ldd [%o0], %f6
|
|
inc 8, %o0
|
|
ldd [%o0], %f8
|
|
inc 8, %o0
|
|
ldd [%o0], %f10
|
|
inc 8, %o0
|
|
ldd [%o0], %f12
|
|
inc 8, %o0
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
inc BLOCK_SIZE, %o0
|
|
3:
|
|
faligndata %f4, %f6, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f6, %f8, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f8, %f10, %f36
|
|
faligndata %f10, %f12, %f38
|
|
faligndata %f12, %f14, %f40
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
faligndata %f14, %f16, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f16, %f18, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f18, %f20, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f20, %f22, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f22, %f24, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f24, %f26, %f36
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f26, %f28, %f38
|
|
faligndata %f28, %f30, %f40
|
|
ble,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
faligndata %f30, %f48, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f48, %f50, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f50, %f52, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f52, %f54, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f54, %f56, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f56, %f58, %f36
|
|
faligndata %f58, %f60, %f38
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f60, %f62, %f40
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
faligndata %f62, %f0, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f0, %f2, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f2, %f4, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+32
|
|
!!
|
|
!! We need to load 4 doubles by hand.
|
|
!!
|
|
L104:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L104"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
fmovd %f0, %f6
|
|
ldd [%o0], %f8
|
|
inc 8, %o0
|
|
ldd [%o0], %f10
|
|
inc 8, %o0
|
|
ldd [%o0], %f12
|
|
inc 8, %o0
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
inc BLOCK_SIZE, %o0
|
|
3:
|
|
faligndata %f6, %f8, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f8, %f10, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f10, %f12, %f36
|
|
faligndata %f12, %f14, %f38
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
faligndata %f14, %f16, %f40
|
|
faligndata %f16, %f18, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f18, %f20, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f20, %f22, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f22, %f24, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f24, %f26, %f34
|
|
faligndata %f26, %f28, %f36
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f28, %f30, %f38
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
faligndata %f30, %f48, %f40
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f48, %f50, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f50, %f52, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f52, %f54, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f54, %f56, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f56, %f58, %f34
|
|
faligndata %f58, %f60, %f36
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f60, %f62, %f38
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
faligndata %f62, %f0, %f40
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f0, %f2, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f2, %f4, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f4, %f6, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+40
|
|
!!
|
|
!! We need to load 3 doubles by hand.
|
|
!!
|
|
L105:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L105"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
fmovd %f0, %f8
|
|
ldd [%o0], %f10
|
|
inc 8, %o0
|
|
ldd [%o0], %f12
|
|
inc 8, %o0
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
inc BLOCK_SIZE, %o0
|
|
3:
|
|
faligndata %f8, %f10, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f10, %f12, %f34
|
|
faligndata %f12, %f14, %f36
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
faligndata %f14, %f16, %f38
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f16, %f18, %f40
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f18, %f20, %f42
|
|
faligndata %f20, %f22, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f22, %f24, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f24, %f26, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f26, %f28, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f28, %f30, %f36
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
faligndata %f30, %f48, %f38
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f48, %f50, %f40
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f50, %f52, %f42
|
|
faligndata %f52, %f54, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f54, %f56, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f56, %f58, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f58, %f60, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f60, %f62, %f36
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
faligndata %f62, %f0, %f38
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f0, %f2, %f40
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f2, %f4, %f42
|
|
faligndata %f4, %f6, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f6, %f8, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+48
|
|
!!
|
|
!! We need to load 2 doubles by hand.
|
|
!!
|
|
L106:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L106"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
fmovd %f0, %f10
|
|
ldd [%o0], %f12
|
|
inc 8, %o0
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
inc BLOCK_SIZE, %o0
|
|
3:
|
|
faligndata %f10, %f12, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f12, %f14, %f34
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
faligndata %f14, %f16, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f16, %f18, %f38
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f18, %f20, %f40
|
|
faligndata %f20, %f22, %f42
|
|
faligndata %f22, %f24, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f24, %f26, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f26, %f28, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f28, %f30, %f34
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
faligndata %f30, %f48, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f48, %f50, %f38
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f50, %f52, %f40
|
|
faligndata %f52, %f54, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f54, %f56, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f56, %f58, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f58, %f60, %f32
|
|
cmp %o0, %o5
|
|
faligndata %f60, %f62, %f34
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
faligndata %f62, %f0, %f36
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f0, %f2, %f38
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f2, %f4, %f40
|
|
faligndata %f4, %f6, %f42
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f6, %f8, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f8, %f10, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
|
|
!!
|
|
!! Source at BLOCK_ALIGN+56
|
|
!!
|
|
!! We need to load 1 double by hand.
|
|
!!
|
|
L107:
|
|
#ifdef RETURN_NAME
|
|
sethi %hi(1f), %g1
|
|
ba,pt %icc, 2f
|
|
or %g1, %lo(1f), %g1
|
|
1:
|
|
.asciz "L107"
|
|
.align 8
|
|
2:
|
|
#endif
|
|
fmovd %f0, %f12
|
|
ldd [%o0], %f14
|
|
inc 8, %o0
|
|
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
inc BLOCK_SIZE, %o0
|
|
3:
|
|
faligndata %f12, %f14, %f32
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f48
|
|
membar #Sync
|
|
2:
|
|
faligndata %f14, %f16, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f16, %f18, %f36
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f18, %f20, %f38
|
|
faligndata %f20, %f22, %f40
|
|
faligndata %f22, %f24, %f42
|
|
faligndata %f24, %f26, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f26, %f28, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f28, %f30, %f32
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f0
|
|
membar #Sync
|
|
2:
|
|
faligndata %f30, %f48, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f48, %f50, %f36
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f50, %f52, %f38
|
|
faligndata %f52, %f54, %f40
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f54, %f56, %f42
|
|
faligndata %f56, %f58, %f44
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f58, %f60, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
|
|
faligndata %f60, %f62, %f32
|
|
cmp %o0, %o5
|
|
bleu,a,pn %icc, 2f
|
|
ldda [%o0] ASI_BLK_P, %f16
|
|
membar #Sync
|
|
2:
|
|
faligndata %f62, %f0, %f34
|
|
dec BLOCK_SIZE, %o2
|
|
faligndata %f0, %f2, %f36
|
|
inc BLOCK_SIZE, %o1
|
|
faligndata %f2, %f4, %f38
|
|
faligndata %f4, %f6, %f40
|
|
inc BLOCK_SIZE, %o0
|
|
faligndata %f6, %f8, %f42
|
|
faligndata %f8, %f10, %f44
|
|
|
|
brlez,pn %o2, Lmemcpy_blockdone
|
|
faligndata %f10, %f12, %f46
|
|
|
|
stda %f32, [%o1] ASI_STORE
|
|
ba 3b
|
|
inc BLOCK_SIZE, %o1
|
|
|
|
Lmemcpy_blockdone:
|
|
inc BLOCK_SIZE, %o2 ! Fixup our overcommit
|
|
membar #Sync ! Finish any pending loads
|
|
#define FINISH_REG(f) \
|
|
deccc 8, %o2; \
|
|
bl,a Lmemcpy_blockfinish; \
|
|
fmovd f, %f48; \
|
|
std f, [%o1]; \
|
|
inc 8, %o1
|
|
|
|
FINISH_REG(%f32)
|
|
FINISH_REG(%f34)
|
|
FINISH_REG(%f36)
|
|
FINISH_REG(%f38)
|
|
FINISH_REG(%f40)
|
|
FINISH_REG(%f42)
|
|
FINISH_REG(%f44)
|
|
FINISH_REG(%f46)
|
|
FINISH_REG(%f48)
|
|
#undef FINISH_REG
|
|
!!
|
|
!! The low 3 bits have the sub-word bits needed to be
|
|
!! stored [because (x-8)&0x7 == x].
|
|
!!
|
|
Lmemcpy_blockfinish:
|
|
brz,pn %o2, 2f ! 100% complete?
|
|
fmovd %f48, %f4
|
|
cmp %o2, 8 ! Exactly 8 bytes?
|
|
bz,a,pn CCCR, 2f
|
|
std %f4, [%o1]
|
|
|
|
btst 4, %o2 ! Word store?
|
|
bz CCCR, 1f
|
|
nop
|
|
st %f4, [%o1]
|
|
inc 4, %o1
|
|
1:
|
|
btst 2, %o2
|
|
fzero %f0
|
|
bz 1f
|
|
|
|
mov -6, %o4
|
|
alignaddr %o1, %o4, %g0
|
|
|
|
faligndata %f0, %f4, %f8
|
|
|
|
stda %f8, [%o1] ASI_FL16_P ! Store short
|
|
inc 2, %o1
|
|
1:
|
|
btst 1, %o2 ! Byte aligned?
|
|
bz 2f
|
|
|
|
mov -7, %o0 ! Calculate dest - 7
|
|
alignaddr %o1, %o0, %g0 ! Calculate shift mask and dest.
|
|
|
|
faligndata %f0, %f4, %f8 ! Move 1st byte to low part of f8
|
|
|
|
stda %f8, [%o1] ASI_FL8_P ! Store 1st byte
|
|
inc 1, %o1 ! Update address
|
|
2:
|
|
membar #Sync
|
|
#if 0
|
|
!!
|
|
!! verify copy success.
|
|
!!
|
|
|
|
mov %i0, %o2
|
|
mov %i1, %o4
|
|
mov %i2, %l4
|
|
0:
|
|
ldub [%o2], %o1
|
|
inc %o2
|
|
ldub [%o4], %o3
|
|
inc %o4
|
|
cmp %o3, %o1
|
|
bnz 1f
|
|
dec %l4
|
|
brnz %l4, 0b
|
|
nop
|
|
ba 2f
|
|
nop
|
|
|
|
1:
|
|
set block_disable, %o0
|
|
stx %o0, [%o0]
|
|
|
|
set 0f, %o0
|
|
call prom_printf
|
|
sub %i2, %l4, %o5
|
|
set 1f, %o0
|
|
mov %i0, %o2
|
|
mov %i1, %o1
|
|
call prom_printf
|
|
mov %i2, %o3
|
|
ta 1
|
|
.data
|
|
_ALIGN
|
|
0: .asciz "block memcpy failed: %x@%p != %x@%p byte %d\r\n"
|
|
1: .asciz "memcpy(%p, %p, %lx)\r\n"
|
|
_ALIGN
|
|
.text
|
|
2:
|
|
#endif
|
|
#if defined(_KERNEL) && !defined(_RUMPKERNEL)
|
|
|
|
/*
|
|
* Weve saved our possible fpstate, now disable the fpu
|
|
* and continue with life.
|
|
*/
|
|
RESTORE_FPU
|
|
ret
|
|
restore %g1, 0, %o0 ! Return DEST for memcpy
|
|
#endif
|
|
retl
|
|
mov %g1, %o0
|
|
/*
|
|
* Use block_disable to turn off block insns for
|
|
* memcpy/memset
|
|
*/
|
|
.data
|
|
.align 8
|
|
.globl block_disable
|
|
block_disable: .xword 1
|
|
.text
|
|
#endif /* USE_BLOCK_STORE_LOAD */
|