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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-10 09:57:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-10 09:57:23 -0700
commitd719518d9ce9132bad8a06e8029aeead328f66a3 (patch)
treef5a143973255868f68d3b71fb5bd4715326f0e52 /arch/sparc/lib
parentm68k: Add braces to __pmd(x) initializer to kill compiler warning (diff)
parentsparc64: Handle additional cases of no fault loads (diff)
downloadlinux-dev-d719518d9ce9132bad8a06e8029aeead328f66a3.tar.xz
linux-dev-d719518d9ce9132bad8a06e8029aeead328f66a3.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller: 1) Use register window state adjustment instructions when available, from Anthony Yznaga. 2) Add VCC console concentrator driver, from Jag Raman. 3) Add 16GB hugepage support, from Nitin Gupta. 4) Support cpu 'poke' hypercall, from Vijay Kumar. 5) Add M7/M8 optimized memcpy/memset/copy_{to,from}_user, from Babu Moger. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (33 commits) sparc64: Handle additional cases of no fault loads sparc64: speed up etrap/rtrap on NG2 and later processors sparc64: vcc: make ktermios const sparc: leon: grpci1: constify of_device_id sparc: leon: grpci2: constify of_device_id sparc64: vcc: Check for IS_ERR() instead of NULL sparc64: Cleanup hugepage table walk functions sparc64: Add 16GB hugepage support sparc64: Support huge PUD case in get_user_pages sparc64: vcc: Add install & cleanup TTY operations sparc64: vcc: Add break_ctl TTY operation sparc64: vcc: Add chars_in_buffer TTY operation sparc64: vcc: Add write & write_room TTY operations sparc64: vcc: Add hangup TTY operation sparc64: vcc: Add open & close TTY operations sparc64: vcc: Enable LDC event processing engine sparc64: vcc: Add RX & TX timer for delayed LDC operation sparc64: vcc: Create sysfs attribute group sparc64: vcc: Enable VCC port probe and removal sparc64: vcc: TTY driver initialization and cleanup ...
Diffstat (limited to 'arch/sparc/lib')
-rw-r--r--arch/sparc/lib/M7copy_from_user.S40
-rw-r--r--arch/sparc/lib/M7copy_to_user.S51
-rw-r--r--arch/sparc/lib/M7memcpy.S923
-rw-r--r--arch/sparc/lib/M7memset.S352
-rw-r--r--arch/sparc/lib/M7patch.S51
-rw-r--r--arch/sparc/lib/Makefile5
-rw-r--r--arch/sparc/lib/Memcpy_utils.S345
-rw-r--r--arch/sparc/lib/NG4memcpy.S277
-rw-r--r--arch/sparc/lib/U3memcpy.S32
9 files changed, 1852 insertions, 224 deletions
diff --git a/arch/sparc/lib/M7copy_from_user.S b/arch/sparc/lib/M7copy_from_user.S
new file mode 100644
index 000000000000..66464b3e3649
--- /dev/null
+++ b/arch/sparc/lib/M7copy_from_user.S
@@ -0,0 +1,40 @@
+/*
+ * M7copy_from_user.S: SPARC M7 optimized copy from userspace.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+
+#define EX_LD(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y; \
+ .text; \
+ .align 4;
+
+#define EX_LD_FP(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y##_fp; \
+ .text; \
+ .align 4;
+
+#ifndef ASI_AIUS
+#define ASI_AIUS 0x11
+#endif
+
+#define FUNC_NAME M7copy_from_user
+#define LOAD(type,addr,dest) type##a [addr] %asi, dest
+#define EX_RETVAL(x) 0
+
+#ifdef __KERNEL__
+#define PREAMBLE \
+ rd %asi, %g1; \
+ cmp %g1, ASI_AIUS; \
+ bne,pn %icc, raw_copy_in_user; \
+ nop
+#endif
+
+#include "M7memcpy.S"
diff --git a/arch/sparc/lib/M7copy_to_user.S b/arch/sparc/lib/M7copy_to_user.S
new file mode 100644
index 000000000000..a60ac467f808
--- /dev/null
+++ b/arch/sparc/lib/M7copy_to_user.S
@@ -0,0 +1,51 @@
+/*
+ * M7copy_to_user.S: SPARC M7 optimized copy to userspace.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+
+#define EX_ST(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y; \
+ .text; \
+ .align 4;
+
+#define EX_ST_FP(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y##_fp; \
+ .text; \
+ .align 4;
+
+
+#ifndef ASI_AIUS
+#define ASI_AIUS 0x11
+#endif
+
+#ifndef ASI_BLK_INIT_QUAD_LDD_AIUS
+#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23
+#endif
+
+#define FUNC_NAME M7copy_to_user
+#define STORE(type,src,addr) type##a src, [addr] %asi
+#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_AIUS
+#define STORE_MRU_ASI ASI_ST_BLKINIT_MRU_S
+#define EX_RETVAL(x) 0
+
+#ifdef __KERNEL__
+ /* Writing to %asi is _expensive_ so we hardcode it.
+ * Reading %asi to check for KERNEL_DS is comparatively
+ * cheap.
+ */
+#define PREAMBLE \
+ rd %asi, %g1; \
+ cmp %g1, ASI_AIUS; \
+ bne,pn %icc, raw_copy_in_user; \
+ nop
+#endif
+
+#include "M7memcpy.S"
diff --git a/arch/sparc/lib/M7memcpy.S b/arch/sparc/lib/M7memcpy.S
new file mode 100644
index 000000000000..cbd42ea7c3f7
--- /dev/null
+++ b/arch/sparc/lib/M7memcpy.S
@@ -0,0 +1,923 @@
+/*
+ * M7memcpy: Optimized SPARC M7 memcpy
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+ .file "M7memcpy.S"
+
+/*
+ * memcpy(s1, s2, len)
+ *
+ * Copy s2 to s1, always copy n bytes.
+ * Note: this C code does not work for overlapped copies.
+ *
+ * Fast assembler language version of the following C-program for memcpy
+ * which represents the `standard' for the C-library.
+ *
+ * void *
+ * memcpy(void *s, const void *s0, size_t n)
+ * {
+ * if (n != 0) {
+ * char *s1 = s;
+ * const char *s2 = s0;
+ * do {
+ * *s1++ = *s2++;
+ * } while (--n != 0);
+ * }
+ * return (s);
+ * }
+ *
+ *
+ * SPARC T7/M7 Flow :
+ *
+ * if (count < SMALL_MAX) {
+ * if count < SHORTCOPY (SHORTCOPY=3)
+ * copy bytes; exit with dst addr
+ * if src & dst aligned on word boundary but not long word boundary,
+ * copy with ldw/stw; branch to finish_up
+ * if src & dst aligned on long word boundary
+ * copy with ldx/stx; branch to finish_up
+ * if src & dst not aligned and length <= SHORTCHECK (SHORTCHECK=14)
+ * copy bytes; exit with dst addr
+ * move enough bytes to get src to word boundary
+ * if dst now on word boundary
+ * move_words:
+ * copy words; branch to finish_up
+ * if dst now on half word boundary
+ * load words, shift half words, store words; branch to finish_up
+ * if dst on byte 1
+ * load words, shift 3 bytes, store words; branch to finish_up
+ * if dst on byte 3
+ * load words, shift 1 byte, store words; branch to finish_up
+ * finish_up:
+ * copy bytes; exit with dst addr
+ * } else { More than SMALL_MAX bytes
+ * move bytes until dst is on long word boundary
+ * if( src is on long word boundary ) {
+ * if (count < MED_MAX) {
+ * finish_long: src/dst aligned on 8 bytes
+ * copy with ldx/stx in 8-way unrolled loop;
+ * copy final 0-63 bytes; exit with dst addr
+ * } else { src/dst aligned; count > MED_MAX
+ * align dst on 64 byte boundary; for main data movement:
+ * prefetch src data to L2 cache; let HW prefetch move data to L1 cache
+ * Use BIS (block initializing store) to avoid copying store cache
+ * lines from memory. But pre-store first element of each cache line
+ * ST_CHUNK lines in advance of the rest of that cache line. That
+ * gives time for replacement cache lines to be written back without
+ * excess STQ and Miss Buffer filling. Repeat until near the end,
+ * then finish up storing before going to finish_long.
+ * }
+ * } else { src/dst not aligned on 8 bytes
+ * if src is word aligned and count < MED_WMAX
+ * move words in 8-way unrolled loop
+ * move final 0-31 bytes; exit with dst addr
+ * if count < MED_UMAX
+ * use alignaddr/faligndata combined with ldd/std in 8-way
+ * unrolled loop to move data.
+ * go to unalign_done
+ * else
+ * setup alignaddr for faligndata instructions
+ * align dst on 64 byte boundary; prefetch src data to L1 cache
+ * loadx8, falign, block-store, prefetch loop
+ * (only use block-init-store when src/dst on 8 byte boundaries.)
+ * unalign_done:
+ * move remaining bytes for unaligned cases. exit with dst addr.
+ * }
+ *
+ */
+
+#include <asm/visasm.h>
+#include <asm/asi.h>
+
+#if !defined(EX_LD) && !defined(EX_ST)
+#define NON_USER_COPY
+#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 EX_RETVAL
+#define EX_RETVAL(x) x
+#endif
+
+#ifndef LOAD
+#define LOAD(type,addr,dest) type [addr], dest
+#endif
+
+#ifndef STORE
+#define STORE(type,src,addr) type src, [addr]
+#endif
+
+/*
+ * ASI_BLK_INIT_QUAD_LDD_P/ASI_BLK_INIT_QUAD_LDD_S marks the cache
+ * line as "least recently used" which means if many threads are
+ * active, it has a high probability of being pushed out of the cache
+ * between the first initializing store and the final stores.
+ * Thus, we use ASI_ST_BLKINIT_MRU_P/ASI_ST_BLKINIT_MRU_S which
+ * marks the cache line as "most recently used" for all
+ * but the last cache line
+ */
+#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 STORE_MRU_ASI
+#ifndef SIMULATE_NIAGARA_ON_NON_NIAGARA
+#define STORE_MRU_ASI ASI_ST_BLKINIT_MRU_P
+#else
+#define STORE_MRU_ASI 0x80 /* ASI_P */
+#endif
+#endif
+
+#ifndef STORE_INIT
+#define STORE_INIT(src,addr) stxa src, [addr] STORE_ASI
+#endif
+
+#ifndef STORE_INIT_MRU
+#define STORE_INIT_MRU(src,addr) stxa src, [addr] STORE_MRU_ASI
+#endif
+
+#ifndef FUNC_NAME
+#define FUNC_NAME M7memcpy
+#endif
+
+#ifndef PREAMBLE
+#define PREAMBLE
+#endif
+
+#define BLOCK_SIZE 64
+#define SHORTCOPY 3
+#define SHORTCHECK 14
+#define SHORT_LONG 64 /* max copy for short longword-aligned case */
+ /* must be at least 64 */
+#define SMALL_MAX 128
+#define MED_UMAX 1024 /* max copy for medium un-aligned case */
+#define MED_WMAX 1024 /* max copy for medium word-aligned case */
+#define MED_MAX 1024 /* max copy for medium longword-aligned case */
+#define ST_CHUNK 24 /* ST_CHUNK - block of values for BIS Store */
+#define ALIGN_PRE 24 /* distance for aligned prefetch loop */
+
+ .register %g2,#scratch
+
+ .section ".text"
+ .global FUNC_NAME
+ .type FUNC_NAME, #function
+ .align 16
+FUNC_NAME:
+ srlx %o2, 31, %g2
+ cmp %g2, 0
+ tne %xcc, 5
+ PREAMBLE
+ mov %o0, %g1 ! save %o0
+ brz,pn %o2, .Lsmallx
+ cmp %o2, 3
+ ble,pn %icc, .Ltiny_cp
+ cmp %o2, 19
+ ble,pn %icc, .Lsmall_cp
+ or %o0, %o1, %g2
+ cmp %o2, SMALL_MAX
+ bl,pn %icc, .Lmedium_cp
+ nop
+
+.Lmedium:
+ neg %o0, %o5
+ andcc %o5, 7, %o5 ! bytes till DST 8 byte aligned
+ brz,pt %o5, .Ldst_aligned_on_8
+
+ ! %o5 has the bytes to be written in partial store.
+ sub %o2, %o5, %o2
+ sub %o1, %o0, %o1 ! %o1 gets the difference
+7: ! dst aligning loop
+ add %o1, %o0, %o4
+ EX_LD(LOAD(ldub, %o4, %o4), memcpy_retl_o2_plus_o5) ! load one byte
+ subcc %o5, 1, %o5
+ EX_ST(STORE(stb, %o4, %o0), memcpy_retl_o2_plus_o5_plus_1)
+ bgu,pt %xcc, 7b
+ add %o0, 1, %o0 ! advance dst
+ add %o1, %o0, %o1 ! restore %o1
+.Ldst_aligned_on_8:
+ andcc %o1, 7, %o5
+ brnz,pt %o5, .Lsrc_dst_unaligned_on_8
+ nop
+
+.Lsrc_dst_aligned_on_8:
+ ! check if we are copying MED_MAX or more bytes
+ set MED_MAX, %o3
+ cmp %o2, %o3 ! limit to store buffer size
+ bgu,pn %xcc, .Llarge_align8_copy
+ nop
+
+/*
+ * Special case for handling when src and dest are both long word aligned
+ * and total data to move is less than MED_MAX bytes
+ */
+.Lmedlong:
+ subcc %o2, 63, %o2 ! adjust length to allow cc test
+ ble,pn %xcc, .Lmedl63 ! skip big loop if less than 64 bytes
+ nop
+.Lmedl64:
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_63) ! load
+ subcc %o2, 64, %o2 ! decrement length count
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_63_64) ! and store
+ EX_LD(LOAD(ldx, %o1+8, %o3), memcpy_retl_o2_plus_63_56) ! a block of 64
+ EX_ST(STORE(stx, %o3, %o0+8), memcpy_retl_o2_plus_63_56)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_63_48)
+ EX_ST(STORE(stx, %o4, %o0+16), memcpy_retl_o2_plus_63_48)
+ EX_LD(LOAD(ldx, %o1+24, %o3), memcpy_retl_o2_plus_63_40)
+ EX_ST(STORE(stx, %o3, %o0+24), memcpy_retl_o2_plus_63_40)
+ EX_LD(LOAD(ldx, %o1+32, %o4), memcpy_retl_o2_plus_63_32)! load and store
+ EX_ST(STORE(stx, %o4, %o0+32), memcpy_retl_o2_plus_63_32)
+ EX_LD(LOAD(ldx, %o1+40, %o3), memcpy_retl_o2_plus_63_24)! a block of 64
+ add %o1, 64, %o1 ! increase src ptr by 64
+ EX_ST(STORE(stx, %o3, %o0+40), memcpy_retl_o2_plus_63_24)
+ EX_LD(LOAD(ldx, %o1-16, %o4), memcpy_retl_o2_plus_63_16)
+ add %o0, 64, %o0 ! increase dst ptr by 64
+ EX_ST(STORE(stx, %o4, %o0-16), memcpy_retl_o2_plus_63_16)
+ EX_LD(LOAD(ldx, %o1-8, %o3), memcpy_retl_o2_plus_63_8)
+ bgu,pt %xcc, .Lmedl64 ! repeat if at least 64 bytes left
+ EX_ST(STORE(stx, %o3, %o0-8), memcpy_retl_o2_plus_63_8)
+.Lmedl63:
+ addcc %o2, 32, %o2 ! adjust remaining count
+ ble,pt %xcc, .Lmedl31 ! to skip if 31 or fewer bytes left
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_31) ! load
+ sub %o2, 32, %o2 ! decrement length count
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_31_32) ! and store
+ EX_LD(LOAD(ldx, %o1+8, %o3), memcpy_retl_o2_plus_31_24) ! a block of 32
+ add %o1, 32, %o1 ! increase src ptr by 32
+ EX_ST(STORE(stx, %o3, %o0+8), memcpy_retl_o2_plus_31_24)
+ EX_LD(LOAD(ldx, %o1-16, %o4), memcpy_retl_o2_plus_31_16)
+ add %o0, 32, %o0 ! increase dst ptr by 32
+ EX_ST(STORE(stx, %o4, %o0-16), memcpy_retl_o2_plus_31_16)
+ EX_LD(LOAD(ldx, %o1-8, %o3), memcpy_retl_o2_plus_31_8)
+ EX_ST(STORE(stx, %o3, %o0-8), memcpy_retl_o2_plus_31_8)
+.Lmedl31:
+ addcc %o2, 16, %o2 ! adjust remaining count
+ ble,pt %xcc, .Lmedl15 ! skip if 15 or fewer bytes left
+ nop !
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_15)
+ add %o1, 16, %o1 ! increase src ptr by 16
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_15)
+ sub %o2, 16, %o2 ! decrease count by 16
+ EX_LD(LOAD(ldx, %o1-8, %o3), memcpy_retl_o2_plus_15_8)
+ add %o0, 16, %o0 ! increase dst ptr by 16
+ EX_ST(STORE(stx, %o3, %o0-8), memcpy_retl_o2_plus_15_8)
+.Lmedl15:
+ addcc %o2, 15, %o2 ! restore count
+ bz,pt %xcc, .Lsmallx ! exit if finished
+ cmp %o2, 8
+ blt,pt %xcc, .Lmedw7 ! skip if 7 or fewer bytes left
+ tst %o2
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2) ! load 8 bytes
+ add %o1, 8, %o1 ! increase src ptr by 8
+ add %o0, 8, %o0 ! increase dst ptr by 8
+ subcc %o2, 8, %o2 ! decrease count by 8
+ bnz,pn %xcc, .Lmedw7
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8) ! and store 8
+ retl
+ mov EX_RETVAL(%g1), %o0 ! restore %o0
+
+ .align 16
+.Lsrc_dst_unaligned_on_8:
+ ! DST is 8-byte aligned, src is not
+2:
+ andcc %o1, 0x3, %o5 ! test word alignment
+ bnz,pt %xcc, .Lunalignsetup ! branch to skip if not word aligned
+ nop
+
+/*
+ * Handle all cases where src and dest are aligned on word
+ * boundaries. Use unrolled loops for better performance.
+ * This option wins over standard large data move when
+ * source and destination is in cache for.Lmedium
+ * to short data moves.
+ */
+ set MED_WMAX, %o3
+ cmp %o2, %o3 ! limit to store buffer size
+ bge,pt %xcc, .Lunalignrejoin ! otherwise rejoin main loop
+ nop
+
+ subcc %o2, 31, %o2 ! adjust length to allow cc test
+ ! for end of loop
+ ble,pt %xcc, .Lmedw31 ! skip big loop if less than 16
+.Lmedw32:
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2_plus_31)! move a block of 32
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1+4, %o4), memcpy_retl_o2_plus_31)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_31)
+ subcc %o2, 32, %o2 ! decrement length count
+ EX_LD(LOAD(ld, %o1+8, %o4), memcpy_retl_o2_plus_31_24)
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1+12, %o4), memcpy_retl_o2_plus_31_24)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0+8), memcpy_retl_o2_plus_31_24)
+ add %o1, 32, %o1 ! increase src ptr by 32
+ EX_LD(LOAD(ld, %o1-16, %o4), memcpy_retl_o2_plus_31_16)
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1-12, %o4), memcpy_retl_o2_plus_31_16)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0+16), memcpy_retl_o2_plus_31_16)
+ add %o0, 32, %o0 ! increase dst ptr by 32
+ EX_LD(LOAD(ld, %o1-8, %o4), memcpy_retl_o2_plus_31_8)
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1-4, %o4), memcpy_retl_o2_plus_31_8)
+ or %o4, %o5, %o5
+ bgu,pt %xcc, .Lmedw32 ! repeat if at least 32 bytes left
+ EX_ST(STORE(stx, %o5, %o0-8), memcpy_retl_o2_plus_31_8)
+.Lmedw31:
+ addcc %o2, 31, %o2 ! restore count
+
+ bz,pt %xcc, .Lsmallx ! exit if finished
+ nop
+ cmp %o2, 16
+ blt,pt %xcc, .Lmedw15
+ nop
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2)! move a block of 16 bytes
+ sllx %o4, 32, %o5
+ subcc %o2, 16, %o2 ! decrement length count
+ EX_LD(LOAD(ld, %o1+4, %o4), memcpy_retl_o2_plus_16)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_16)
+ add %o1, 16, %o1 ! increase src ptr by 16
+ EX_LD(LOAD(ld, %o1-8, %o4), memcpy_retl_o2_plus_8)
+ add %o0, 16, %o0 ! increase dst ptr by 16
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1-4, %o4), memcpy_retl_o2_plus_8)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0-8), memcpy_retl_o2_plus_8)
+.Lmedw15:
+ bz,pt %xcc, .Lsmallx ! exit if finished
+ cmp %o2, 8
+ blt,pn %xcc, .Lmedw7 ! skip if 7 or fewer bytes left
+ tst %o2
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2) ! load 4 bytes
+ subcc %o2, 8, %o2 ! decrease count by 8
+ EX_ST(STORE(stw, %o4, %o0), memcpy_retl_o2_plus_8)! and store 4 bytes
+ add %o1, 8, %o1 ! increase src ptr by 8
+ EX_LD(LOAD(ld, %o1-4, %o3), memcpy_retl_o2_plus_4) ! load 4 bytes
+ add %o0, 8, %o0 ! increase dst ptr by 8
+ EX_ST(STORE(stw, %o3, %o0-4), memcpy_retl_o2_plus_4)! and store 4 bytes
+ bz,pt %xcc, .Lsmallx ! exit if finished
+.Lmedw7: ! count is ge 1, less than 8
+ cmp %o2, 4 ! check for 4 bytes left
+ blt,pn %xcc, .Lsmallleft3 ! skip if 3 or fewer bytes left
+ nop !
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2) ! load 4 bytes
+ add %o1, 4, %o1 ! increase src ptr by 4
+ add %o0, 4, %o0 ! increase dst ptr by 4
+ subcc %o2, 4, %o2 ! decrease count by 4
+ bnz .Lsmallleft3
+ EX_ST(STORE(stw, %o4, %o0-4), memcpy_retl_o2_plus_4)! and store 4 bytes
+ retl
+ mov EX_RETVAL(%g1), %o0
+
+ .align 16
+.Llarge_align8_copy: ! Src and dst share 8 byte alignment
+ ! align dst to 64 byte boundary
+ andcc %o0, 0x3f, %o3 ! %o3 == 0 means dst is 64 byte aligned
+ brz,pn %o3, .Laligned_to_64
+ andcc %o0, 8, %o3 ! odd long words to move?
+ brz,pt %o3, .Laligned_to_16
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2)
+ sub %o2, 8, %o2
+ add %o1, 8, %o1 ! increment src ptr
+ add %o0, 8, %o0 ! increment dst ptr
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8)
+.Laligned_to_16:
+ andcc %o0, 16, %o3 ! pair of long words to move?
+ brz,pt %o3, .Laligned_to_32
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2)
+ sub %o2, 16, %o2
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_16)
+ add %o1, 16, %o1 ! increment src ptr
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_8)
+ add %o0, 16, %o0 ! increment dst ptr
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8)
+.Laligned_to_32:
+ andcc %o0, 32, %o3 ! four long words to move?
+ brz,pt %o3, .Laligned_to_64
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2)
+ sub %o2, 32, %o2
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_32)
+ EX_LD(LOAD(ldx, %o1+8, %o4), memcpy_retl_o2_plus_24)
+ EX_ST(STORE(stx, %o4, %o0+8), memcpy_retl_o2_plus_24)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_16)
+ EX_ST(STORE(stx, %o4, %o0+16), memcpy_retl_o2_plus_16)
+ add %o1, 32, %o1 ! increment src ptr
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_8)
+ add %o0, 32, %o0 ! increment dst ptr
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8)
+.Laligned_to_64:
+!
+! Using block init store (BIS) instructions to avoid fetching cache
+! lines from memory. Use ST_CHUNK stores to first element of each cache
+! line (similar to prefetching) to avoid overfilling STQ or miss buffers.
+! Gives existing cache lines time to be moved out of L1/L2/L3 cache.
+! Initial stores using MRU version of BIS to keep cache line in
+! cache until we are ready to store final element of cache line.
+! Then store last element using the LRU version of BIS.
+!
+ andn %o2, 0x3f, %o5 ! %o5 is multiple of block size
+ and %o2, 0x3f, %o2 ! residue bytes in %o2
+!
+! We use STORE_MRU_ASI for the first seven stores to each cache line
+! followed by STORE_ASI (mark as LRU) for the last store. That
+! mixed approach reduces the probability that the cache line is removed
+! before we finish setting it, while minimizing the effects on
+! other cached values during a large memcpy
+!
+! ST_CHUNK batches up initial BIS operations for several cache lines
+! to allow multiple requests to not be blocked by overflowing the
+! the store miss buffer. Then the matching stores for all those
+! BIS operations are executed.
+!
+
+ sub %o0, 8, %o0 ! adjust %o0 for ASI alignment
+.Lalign_loop:
+ cmp %o5, ST_CHUNK*64
+ blu,pt %xcc, .Lalign_loop_fin
+ mov ST_CHUNK,%o3
+.Lalign_loop_start:
+ prefetch [%o1 + (ALIGN_PRE * BLOCK_SIZE)], 21
+ subcc %o3, 1, %o3
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_o5)
+ add %o1, 64, %o1
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ bgu %xcc,.Lalign_loop_start
+ add %o0, 56, %o0
+
+ mov ST_CHUNK,%o3
+ sllx %o3, 6, %o4 ! ST_CHUNK*64
+ sub %o1, %o4, %o1 ! reset %o1
+ sub %o0, %o4, %o0 ! reset %o0
+
+.Lalign_loop_rest:
+ EX_LD(LOAD(ldx, %o1+8, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 16, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ subcc %o3, 1, %o3
+ EX_LD(LOAD(ldx, %o1+24, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+32, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+40, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+48, %o4), memcpy_retl_o2_plus_o5)
+ add %o1, 64, %o1
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_o5)
+ sub %o5, 64, %o5
+ bgu %xcc,.Lalign_loop_rest
+ ! mark cache line as LRU
+ EX_ST(STORE_INIT(%o4, %o0), memcpy_retl_o2_plus_o5_plus_64)
+
+ cmp %o5, ST_CHUNK*64
+ bgu,pt %xcc, .Lalign_loop_start
+ mov ST_CHUNK,%o3
+
+ cmp %o5, 0
+ beq .Lalign_done
+ nop
+.Lalign_loop_fin:
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_o5)
+ EX_ST(STORE(stx, %o4, %o0+8), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+8, %o4), memcpy_retl_o2_plus_o5)
+ EX_ST(STORE(stx, %o4, %o0+8+8), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_o5)
+ EX_ST(STORE(stx, %o4, %o0+8+16), memcpy_retl_o2_plus_o5)
+ subcc %o5, 64, %o5
+ EX_LD(LOAD(ldx, %o1+24, %o4), memcpy_retl_o2_plus_o5_64)
+ EX_ST(STORE(stx, %o4, %o0+8+24), memcpy_retl_o2_plus_o5_64)
+ EX_LD(LOAD(ldx, %o1+32, %o4), memcpy_retl_o2_plus_o5_64)
+ EX_ST(STORE(stx, %o4, %o0+8+32), memcpy_retl_o2_plus_o5_64)
+ EX_LD(LOAD(ldx, %o1+40, %o4), memcpy_retl_o2_plus_o5_64)
+ EX_ST(STORE(stx, %o4, %o0+8+40), memcpy_retl_o2_plus_o5_64)
+ EX_LD(LOAD(ldx, %o1+48, %o4), memcpy_retl_o2_plus_o5_64)
+ add %o1, 64, %o1
+ EX_ST(STORE(stx, %o4, %o0+8+48), memcpy_retl_o2_plus_o5_64)
+ add %o0, 64, %o0
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_o5_64)
+ bgu %xcc,.Lalign_loop_fin
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_o5_64)
+
+.Lalign_done:
+ add %o0, 8, %o0 ! restore %o0 from ASI alignment
+ membar #StoreStore
+ sub %o2, 63, %o2 ! adjust length to allow cc test
+ ba .Lmedl63 ! in .Lmedl63
+ nop
+
+ .align 16
+ ! Dst is on 8 byte boundary; src is not; remaining count > SMALL_MAX
+.Lunalignsetup:
+.Lunalignrejoin:
+ mov %g1, %o3 ! save %g1 as VISEntryHalf clobbers it
+#ifdef NON_USER_COPY
+ VISEntryHalfFast(.Lmedium_vis_entry_fail_cp)
+#else
+ VISEntryHalf
+#endif
+ mov %o3, %g1 ! restore %g1
+
+ set MED_UMAX, %o3
+ cmp %o2, %o3 ! check for.Lmedium unaligned limit
+ bge,pt %xcc,.Lunalign_large
+ prefetch [%o1 + (4 * BLOCK_SIZE)], 20
+ andn %o2, 0x3f, %o5 ! %o5 is multiple of block size
+ and %o2, 0x3f, %o2 ! residue bytes in %o2
+ cmp %o2, 8 ! Insure we do not load beyond
+ bgt .Lunalign_adjust ! end of source buffer
+ andn %o1, 0x7, %o4 ! %o4 has long word aligned src address
+ add %o2, 64, %o2 ! adjust to leave loop
+ sub %o5, 64, %o5 ! early if necessary
+.Lunalign_adjust:
+ alignaddr %o1, %g0, %g0 ! generate %gsr
+ add %o1, %o5, %o1 ! advance %o1 to after blocks
+ EX_LD_FP(LOAD(ldd, %o4, %f0), memcpy_retl_o2_plus_o5)
+.Lunalign_loop:
+ EX_LD_FP(LOAD(ldd, %o4+8, %f2), memcpy_retl_o2_plus_o5)
+ faligndata %f0, %f2, %f16
+ EX_LD_FP(LOAD(ldd, %o4+16, %f4), memcpy_retl_o2_plus_o5)
+ subcc %o5, BLOCK_SIZE, %o5
+ EX_ST_FP(STORE(std, %f16, %o0), memcpy_retl_o2_plus_o5_plus_64)
+ faligndata %f2, %f4, %f18
+ EX_LD_FP(LOAD(ldd, %o4+24, %f6), memcpy_retl_o2_plus_o5_plus_56)
+ EX_ST_FP(STORE(std, %f18, %o0+8), memcpy_retl_o2_plus_o5_plus_56)
+ faligndata %f4, %f6, %f20
+ EX_LD_FP(LOAD(ldd, %o4+32, %f8), memcpy_retl_o2_plus_o5_plus_48)
+ EX_ST_FP(STORE(std, %f20, %o0+16), memcpy_retl_o2_plus_o5_plus_48)
+ faligndata %f6, %f8, %f22
+ EX_LD_FP(LOAD(ldd, %o4+40, %f10), memcpy_retl_o2_plus_o5_plus_40)
+ EX_ST_FP(STORE(std, %f22, %o0+24), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f8, %f10, %f24
+ EX_LD_FP(LOAD(ldd, %o4+48, %f12), memcpy_retl_o2_plus_o5_plus_32)
+ EX_ST_FP(STORE(std, %f24, %o0+32), memcpy_retl_o2_plus_o5_plus_32)
+ faligndata %f10, %f12, %f26
+ EX_LD_FP(LOAD(ldd, %o4+56, %f14), memcpy_retl_o2_plus_o5_plus_24)
+ add %o4, BLOCK_SIZE, %o4
+ EX_ST_FP(STORE(std, %f26, %o0+40), memcpy_retl_o2_plus_o5_plus_24)
+ faligndata %f12, %f14, %f28
+ EX_LD_FP(LOAD(ldd, %o4, %f0), memcpy_retl_o2_plus_o5_plus_16)
+ EX_ST_FP(STORE(std, %f28, %o0+48), memcpy_retl_o2_plus_o5_plus_16)
+ faligndata %f14, %f0, %f30
+ EX_ST_FP(STORE(std, %f30, %o0+56), memcpy_retl_o2_plus_o5_plus_8)
+ add %o0, BLOCK_SIZE, %o0
+ bgu,pt %xcc, .Lunalign_loop
+ prefetch [%o4 + (5 * BLOCK_SIZE)], 20
+ ba .Lunalign_done
+ nop
+
+.Lunalign_large:
+ andcc %o0, 0x3f, %o3 ! is dst 64-byte block aligned?
+ bz %xcc, .Lunalignsrc
+ sub %o3, 64, %o3 ! %o3 will be multiple of 8
+ neg %o3 ! bytes until dest is 64 byte aligned
+ sub %o2, %o3, %o2 ! update cnt with bytes to be moved
+ ! Move bytes according to source alignment
+ andcc %o1, 0x1, %o5
+ bnz %xcc, .Lunalignbyte ! check for byte alignment
+ nop
+ andcc %o1, 2, %o5 ! check for half word alignment
+ bnz %xcc, .Lunalignhalf
+ nop
+ ! Src is word aligned
+.Lunalignword:
+ EX_LD_FP(LOAD(ld, %o1, %o4), memcpy_retl_o2_plus_o3) ! load 4 bytes
+ add %o1, 8, %o1 ! increase src ptr by 8
+ EX_ST_FP(STORE(stw, %o4, %o0), memcpy_retl_o2_plus_o3) ! and store 4
+ subcc %o3, 8, %o3 ! decrease count by 8
+ EX_LD_FP(LOAD(ld, %o1-4, %o4), memcpy_retl_o2_plus_o3_plus_4)! load 4
+ add %o0, 8, %o0 ! increase dst ptr by 8
+ bnz %xcc, .Lunalignword
+ EX_ST_FP(STORE(stw, %o4, %o0-4), memcpy_retl_o2_plus_o3_plus_4)
+ ba .Lunalignsrc
+ nop
+
+ ! Src is half-word aligned
+.Lunalignhalf:
+ EX_LD_FP(LOAD(lduh, %o1, %o4), memcpy_retl_o2_plus_o3) ! load 2 bytes
+ sllx %o4, 32, %o5 ! shift left
+ EX_LD_FP(LOAD(lduw, %o1+2, %o4), memcpy_retl_o2_plus_o3)
+ or %o4, %o5, %o5
+ sllx %o5, 16, %o5
+ EX_LD_FP(LOAD(lduh, %o1+6, %o4), memcpy_retl_o2_plus_o3)
+ or %o4, %o5, %o5
+ EX_ST_FP(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_o3)
+ add %o1, 8, %o1
+ subcc %o3, 8, %o3
+ bnz %xcc, .Lunalignhalf
+ add %o0, 8, %o0
+ ba .Lunalignsrc
+ nop
+
+ ! Src is Byte aligned
+.Lunalignbyte:
+ sub %o0, %o1, %o0 ! share pointer advance
+.Lunalignbyte_loop:
+ EX_LD_FP(LOAD(ldub, %o1, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 56, %o5
+ EX_LD_FP(LOAD(lduh, %o1+1, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 40, %o4
+ or %o4, %o5, %o5
+ EX_LD_FP(LOAD(lduh, %o1+3, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 24, %o4
+ or %o4, %o5, %o5
+ EX_LD_FP(LOAD(lduh, %o1+5, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 8, %o4
+ or %o4, %o5, %o5
+ EX_LD_FP(LOAD(ldub, %o1+7, %o4), memcpy_retl_o2_plus_o3)
+ or %o4, %o5, %o5
+ add %o0, %o1, %o0
+ EX_ST_FP(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_o3)
+ sub %o0, %o1, %o0
+ subcc %o3, 8, %o3
+ bnz %xcc, .Lunalignbyte_loop
+ add %o1, 8, %o1
+ add %o0,%o1, %o0 ! restore pointer
+
+ ! Destination is now block (64 byte aligned)
+.Lunalignsrc:
+ andn %o2, 0x3f, %o5 ! %o5 is multiple of block size
+ and %o2, 0x3f, %o2 ! residue bytes in %o2
+ add %o2, 64, %o2 ! Insure we do not load beyond
+ sub %o5, 64, %o5 ! end of source buffer
+
+ andn %o1, 0x7, %o4 ! %o4 has long word aligned src address
+ alignaddr %o1, %g0, %g0 ! generate %gsr
+ add %o1, %o5, %o1 ! advance %o1 to after blocks
+
+ EX_LD_FP(LOAD(ldd, %o4, %f14), memcpy_retl_o2_plus_o5)
+ add %o4, 8, %o4
+.Lunalign_sloop:
+ EX_LD_FP(LOAD(ldd, %o4, %f16), memcpy_retl_o2_plus_o5)
+ faligndata %f14, %f16, %f0
+ EX_LD_FP(LOAD(ldd, %o4+8, %f18), memcpy_retl_o2_plus_o5)
+ faligndata %f16, %f18, %f2
+ EX_LD_FP(LOAD(ldd, %o4+16, %f20), memcpy_retl_o2_plus_o5)
+ faligndata %f18, %f20, %f4
+ EX_ST_FP(STORE(std, %f0, %o0), memcpy_retl_o2_plus_o5)
+ subcc %o5, 64, %o5
+ EX_LD_FP(LOAD(ldd, %o4+24, %f22), memcpy_retl_o2_plus_o5_plus_56)
+ faligndata %f20, %f22, %f6
+ EX_ST_FP(STORE(std, %f2, %o0+8), memcpy_retl_o2_plus_o5_plus_56)
+ EX_LD_FP(LOAD(ldd, %o4+32, %f24), memcpy_retl_o2_plus_o5_plus_48)
+ faligndata %f22, %f24, %f8
+ EX_ST_FP(STORE(std, %f4, %o0+16), memcpy_retl_o2_plus_o5_plus_48)
+ EX_LD_FP(LOAD(ldd, %o4+40, %f26), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f24, %f26, %f10
+ EX_ST_FP(STORE(std, %f6, %o0+24), memcpy_retl_o2_plus_o5_plus_40)
+ EX_LD_FP(LOAD(ldd, %o4+48, %f28), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f26, %f28, %f12
+ EX_ST_FP(STORE(std, %f8, %o0+32), memcpy_retl_o2_plus_o5_plus_40)
+ add %o4, 64, %o4
+ EX_LD_FP(LOAD(ldd, %o4-8, %f30), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f28, %f30, %f14
+ EX_ST_FP(STORE(std, %f10, %o0+40), memcpy_retl_o2_plus_o5_plus_40)
+ EX_ST_FP(STORE(std, %f12, %o0+48), memcpy_retl_o2_plus_o5_plus_40)
+ add %o0, 64, %o0
+ EX_ST_FP(STORE(std, %f14, %o0-8), memcpy_retl_o2_plus_o5_plus_40)
+ fsrc2 %f30, %f14
+ bgu,pt %xcc, .Lunalign_sloop
+ prefetch [%o4 + (8 * BLOCK_SIZE)], 20
+
+.Lunalign_done:
+ ! Handle trailing bytes, 64 to 127
+ ! Dest long word aligned, Src not long word aligned
+ cmp %o2, 15
+ bleu %xcc, .Lunalign_short
+
+ andn %o2, 0x7, %o5 ! %o5 is multiple of 8
+ and %o2, 0x7, %o2 ! residue bytes in %o2
+ add %o2, 8, %o2
+ sub %o5, 8, %o5 ! insure we do not load past end of src
+ andn %o1, 0x7, %o4 ! %o4 has long word aligned src address
+ add %o1, %o5, %o1 ! advance %o1 to after multiple of 8
+ EX_LD_FP(LOAD(ldd, %o4, %f0), memcpy_retl_o2_plus_o5)! fetch partialword
+.Lunalign_by8:
+ EX_LD_FP(LOAD(ldd, %o4+8, %f2), memcpy_retl_o2_plus_o5)
+ add %o4, 8, %o4
+ faligndata %f0, %f2, %f16
+ subcc %o5, 8, %o5
+ EX_ST_FP(STORE(std, %f16, %o0), memcpy_retl_o2_plus_o5)
+ fsrc2 %f2, %f0
+ bgu,pt %xcc, .Lunalign_by8
+ add %o0, 8, %o0
+
+.Lunalign_short:
+#ifdef NON_USER_COPY
+ VISExitHalfFast
+#else
+ VISExitHalf
+#endif
+ ba .Lsmallrest
+ nop
+
+/*
+ * This is a special case of nested memcpy. This can happen when kernel
+ * calls unaligned memcpy back to back without saving FP registers. We need
+ * traps(context switch) to save/restore FP registers. If the kernel calls
+ * memcpy without this trap sequence we will hit FP corruption. Let's use
+ * the normal integer load/store method in this case.
+ */
+
+#ifdef NON_USER_COPY
+.Lmedium_vis_entry_fail_cp:
+ or %o0, %o1, %g2
+#endif
+.Lmedium_cp:
+ LOAD(prefetch, %o1 + 0x40, #n_reads_strong)
+ andcc %g2, 0x7, %g0
+ bne,pn %xcc, .Lmedium_unaligned_cp
+ nop
+
+.Lmedium_noprefetch_cp:
+ andncc %o2, 0x20 - 1, %o5
+ be,pn %xcc, 2f
+ sub %o2, %o5, %o2
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %o3), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x08, %g2), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x10, %g7), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x18, %o4), memcpy_retl_o2_plus_o5)
+ add %o1, 0x20, %o1
+ subcc %o5, 0x20, %o5
+ EX_ST(STORE(stx, %o3, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_32)
+ EX_ST(STORE(stx, %g2, %o0 + 0x08), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, %g7, %o0 + 0x10), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, %o4, %o0 + 0x18), memcpy_retl_o2_plus_o5_plus_8)
+ bne,pt %xcc, 1b
+ add %o0, 0x20, %o0
+2: andcc %o2, 0x18, %o5
+ be,pt %xcc, 3f
+ sub %o2, %o5, %o2
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %o3), memcpy_retl_o2_plus_o5)
+ add %o1, 0x08, %o1
+ add %o0, 0x08, %o0
+ subcc %o5, 0x08, %o5
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stx, %o3, %o0 - 0x08), memcpy_retl_o2_plus_o5_plus_8)
+3: brz,pt %o2, .Lexit_cp
+ cmp %o2, 0x04
+ bl,pn %xcc, .Ltiny_cp
+ nop
+ EX_LD(LOAD(lduw, %o1 + 0x00, %o3), memcpy_retl_o2)
+ add %o1, 0x04, %o1
+ add %o0, 0x04, %o0
+ subcc %o2, 0x04, %o2
+ bne,pn %xcc, .Ltiny_cp
+ EX_ST(STORE(stw, %o3, %o0 - 0x04), memcpy_retl_o2_plus_4)
+ ba,a,pt %xcc, .Lexit_cp
+
+.Lmedium_unaligned_cp:
+ /* First get dest 8 byte aligned. */
+ sub %g0, %o0, %o3
+ and %o3, 0x7, %o3
+ brz,pt %o3, 2f
+ sub %o2, %o3, %o2
+
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
+ add %o1, 1, %o1
+ subcc %o3, 1, %o3
+ add %o0, 1, %o0
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stb, %g2, %o0 - 0x01), memcpy_retl_o2_plus_g1_plus_1)
+2:
+ and %o1, 0x7, %o3
+ brz,pn %o3, .Lmedium_noprefetch_cp
+ sll %o3, 3, %o3
+ mov 64, %g2
+ sub %g2, %o3, %g2
+ andn %o1, 0x7, %o1
+ EX_LD(LOAD(ldx, %o1 + 0x00, %o4), memcpy_retl_o2)
+ sllx %o4, %o3, %o4
+ andn %o2, 0x08 - 1, %o5
+ sub %o2, %o5, %o2
+
+1: EX_LD(LOAD(ldx, %o1 + 0x08, %g3), memcpy_retl_o2_plus_o5)
+ add %o1, 0x08, %o1
+ subcc %o5, 0x08, %o5
+ srlx %g3, %g2, %g7
+ or %g7, %o4, %g7
+ EX_ST(STORE(stx, %g7, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_8)
+ add %o0, 0x08, %o0
+ bne,pt %xcc, 1b
+ sllx %g3, %o3, %o4
+ srl %o3, 3, %o3
+ add %o1, %o3, %o1
+ brz,pn %o2, .Lexit_cp
+ nop
+ ba,pt %xcc, .Lsmall_unaligned_cp
+
+.Ltiny_cp:
+ EX_LD(LOAD(ldub, %o1 + 0x00, %o3), memcpy_retl_o2)
+ subcc %o2, 1, %o2
+ be,pn %xcc, .Lexit_cp
+ EX_ST(STORE(stb, %o3, %o0 + 0x00), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x01, %o3), memcpy_retl_o2)
+ subcc %o2, 1, %o2
+ be,pn %xcc, .Lexit_cp
+ EX_ST(STORE(stb, %o3, %o0 + 0x01), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x02, %o3), memcpy_retl_o2)
+ ba,pt %xcc, .Lexit_cp
+ EX_ST(STORE(stb, %o3, %o0 + 0x02), memcpy_retl_o2)
+
+.Lsmall_cp:
+ andcc %g2, 0x3, %g0
+ bne,pn %xcc, .Lsmall_unaligned_cp
+ andn %o2, 0x4 - 1, %o5
+ sub %o2, %o5, %o2
+1:
+ EX_LD(LOAD(lduw, %o1 + 0x00, %o3), memcpy_retl_o2_plus_o5)
+ add %o1, 0x04, %o1
+ subcc %o5, 0x04, %o5
+ add %o0, 0x04, %o0
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stw, %o3, %o0 - 0x04), memcpy_retl_o2_plus_o5_plus_4)
+ brz,pt %o2, .Lexit_cp
+ nop
+ ba,a,pt %xcc, .Ltiny_cp
+
+.Lsmall_unaligned_cp:
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %o3), memcpy_retl_o2)
+ add %o1, 1, %o1
+ add %o0, 1, %o0
+ subcc %o2, 1, %o2
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stb, %o3, %o0 - 0x01), memcpy_retl_o2_plus_1)
+ ba,a,pt %xcc, .Lexit_cp
+
+.Lsmallrest:
+ tst %o2
+ bz,pt %xcc, .Lsmallx
+ cmp %o2, 4
+ blt,pn %xcc, .Lsmallleft3
+ nop
+ sub %o2, 3, %o2
+.Lsmallnotalign4:
+ EX_LD(LOAD(ldub, %o1, %o3), memcpy_retl_o2_plus_3)! read byte
+ subcc %o2, 4, %o2 ! reduce count by 4
+ EX_ST(STORE(stb, %o3, %o0), memcpy_retl_o2_plus_7)! write byte & repeat
+ EX_LD(LOAD(ldub, %o1+1, %o3), memcpy_retl_o2_plus_6)! for total of 4
+ add %o1, 4, %o1 ! advance SRC by 4
+ EX_ST(STORE(stb, %o3, %o0+1), memcpy_retl_o2_plus_6)
+ EX_LD(LOAD(ldub, %o1-2, %o3), memcpy_retl_o2_plus_5)
+ add %o0, 4, %o0 ! advance DST by 4
+ EX_ST(STORE(stb, %o3, %o0-2), memcpy_retl_o2_plus_5)
+ EX_LD(LOAD(ldub, %o1-1, %o3), memcpy_retl_o2_plus_4)
+ bgu,pt %xcc, .Lsmallnotalign4 ! loop til 3 or fewer bytes remain
+ EX_ST(STORE(stb, %o3, %o0-1), memcpy_retl_o2_plus_4)
+ addcc %o2, 3, %o2 ! restore count
+ bz,pt %xcc, .Lsmallx
+.Lsmallleft3: ! 1, 2, or 3 bytes remain
+ subcc %o2, 1, %o2
+ EX_LD(LOAD(ldub, %o1, %o3), memcpy_retl_o2_plus_1) ! load one byte
+ bz,pt %xcc, .Lsmallx
+ EX_ST(STORE(stb, %o3, %o0), memcpy_retl_o2_plus_1) ! store one byte
+ EX_LD(LOAD(ldub, %o1+1, %o3), memcpy_retl_o2) ! load second byte
+ subcc %o2, 1, %o2
+ bz,pt %xcc, .Lsmallx
+ EX_ST(STORE(stb, %o3, %o0+1), memcpy_retl_o2_plus_1)! store second byte
+ EX_LD(LOAD(ldub, %o1+2, %o3), memcpy_retl_o2) ! load third byte
+ EX_ST(STORE(stb, %o3, %o0+2), memcpy_retl_o2) ! store third byte
+.Lsmallx:
+ retl
+ mov EX_RETVAL(%g1), %o0
+.Lsmallfin:
+ tst %o2
+ bnz,pn %xcc, .Lsmallleft3
+ nop
+ retl
+ mov EX_RETVAL(%g1), %o0 ! restore %o0
+.Lexit_cp:
+ retl
+ mov EX_RETVAL(%g1), %o0
+ .size FUNC_NAME, .-FUNC_NAME
diff --git a/arch/sparc/lib/M7memset.S b/arch/sparc/lib/M7memset.S
new file mode 100644
index 000000000000..62ea91b3a6b8
--- /dev/null
+++ b/arch/sparc/lib/M7memset.S
@@ -0,0 +1,352 @@
+/*
+ * M7memset.S: SPARC M7 optimized memset.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+/*
+ * M7memset.S: M7 optimized memset.
+ *
+ * char *memset(sp, c, n)
+ *
+ * Set an array of n chars starting at sp to the character c.
+ * Return sp.
+ *
+ * Fast assembler language version of the following C-program for memset
+ * which represents the `standard' for the C-library.
+ *
+ * void *
+ * memset(void *sp1, int c, size_t n)
+ * {
+ * if (n != 0) {
+ * char *sp = sp1;
+ * do {
+ * *sp++ = (char)c;
+ * } while (--n != 0);
+ * }
+ * return (sp1);
+ * }
+ *
+ * The algorithm is as follows :
+ *
+ * For small 6 or fewer bytes stores, bytes will be stored.
+ *
+ * For less than 32 bytes stores, align the address on 4 byte boundary.
+ * Then store as many 4-byte chunks, followed by trailing bytes.
+ *
+ * For sizes greater than 32 bytes, align the address on 8 byte boundary.
+ * if (count >= 64) {
+ * store 8-bytes chunks to align the address on 64 byte boundary
+ * if (value to be set is zero && count >= MIN_ZERO) {
+ * Using BIS stores, set the first long word of each
+ * 64-byte cache line to zero which will also clear the
+ * other seven long words of the cache line.
+ * }
+ * else if (count >= MIN_LOOP) {
+ * Using BIS stores, set the first long word of each of
+ * ST_CHUNK cache lines (64 bytes each) before the main
+ * loop is entered.
+ * In the main loop, continue pre-setting the first long
+ * word of each cache line ST_CHUNK lines in advance while
+ * setting the other seven long words (56 bytes) of each
+ * cache line until fewer than ST_CHUNK*64 bytes remain.
+ * Then set the remaining seven long words of each cache
+ * line that has already had its first long word set.
+ * }
+ * store remaining data in 64-byte chunks until less than
+ * 64 bytes remain.
+ * }
+ * Store as many 8-byte chunks, followed by trailing bytes.
+ *
+ * BIS = Block Init Store
+ * Doing the advance store of the first element of the cache line
+ * initiates the displacement of a cache line while only using a single
+ * instruction in the pipeline. That avoids various pipeline delays,
+ * such as filling the miss buffer. The performance effect is
+ * similar to prefetching for normal stores.
+ * The special case for zero fills runs faster and uses fewer instruction
+ * cycles than the normal memset loop.
+ *
+ * We only use BIS for memset of greater than MIN_LOOP bytes because a sequence
+ * BIS stores must be followed by a membar #StoreStore. The benefit of
+ * the BIS store must be balanced against the cost of the membar operation.
+ */
+
+/*
+ * ASI_STBI_P marks the cache line as "least recently used"
+ * which means if many threads are active, it has a high chance
+ * of being pushed out of the cache between the first initializing
+ * store and the final stores.
+ * Thus, we use ASI_STBIMRU_P which marks the cache line as
+ * "most recently used" for all but the last store to the cache line.
+ */
+
+#include <asm/asi.h>
+#include <asm/page.h>
+
+#define ASI_STBI_P ASI_BLK_INIT_QUAD_LDD_P
+#define ASI_STBIMRU_P ASI_ST_BLKINIT_MRU_P
+
+
+#define ST_CHUNK 24 /* multiple of 4 due to loop unrolling */
+#define MIN_LOOP 16320
+#define MIN_ZERO 512
+
+ .section ".text"
+ .align 32
+
+/*
+ * Define clear_page(dest) as memset(dest, 0, PAGE_SIZE)
+ * (can create a more optimized version later.)
+ */
+ .globl M7clear_page
+ .globl M7clear_user_page
+M7clear_page: /* clear_page(dest) */
+M7clear_user_page:
+ set PAGE_SIZE, %o1
+ /* fall through into bzero code */
+
+ .size M7clear_page,.-M7clear_page
+ .size M7clear_user_page,.-M7clear_user_page
+
+/*
+ * Define bzero(dest, n) as memset(dest, 0, n)
+ * (can create a more optimized version later.)
+ */
+ .globl M7bzero
+M7bzero: /* bzero(dest, size) */
+ mov %o1, %o2
+ mov 0, %o1
+ /* fall through into memset code */
+
+ .size M7bzero,.-M7bzero
+
+ .global M7memset
+ .type M7memset, #function
+ .register %g3, #scratch
+M7memset:
+ mov %o0, %o5 ! copy sp1 before using it
+ cmp %o2, 7 ! if small counts, just write bytes
+ bleu,pn %xcc, .wrchar
+ and %o1, 0xff, %o1 ! o1 is (char)c
+
+ sll %o1, 8, %o3
+ or %o1, %o3, %o1 ! now o1 has 2 bytes of c
+ sll %o1, 16, %o3
+ cmp %o2, 32
+ blu,pn %xcc, .wdalign
+ or %o1, %o3, %o1 ! now o1 has 4 bytes of c
+
+ sllx %o1, 32, %o3
+ or %o1, %o3, %o1 ! now o1 has 8 bytes of c
+
+.dbalign:
+ andcc %o5, 7, %o3 ! is sp1 aligned on a 8 byte bound?
+ bz,pt %xcc, .blkalign ! already long word aligned
+ sub %o3, 8, %o3 ! -(bytes till long word aligned)
+
+ add %o2, %o3, %o2 ! update o2 with new count
+ ! Set -(%o3) bytes till sp1 long word aligned
+1: stb %o1, [%o5] ! there is at least 1 byte to set
+ inccc %o3 ! byte clearing loop
+ bl,pt %xcc, 1b
+ inc %o5
+
+ ! Now sp1 is long word aligned (sp1 is found in %o5)
+.blkalign:
+ cmp %o2, 64 ! check if there are 64 bytes to set
+ blu,pn %xcc, .wrshort
+ mov %o2, %o3
+
+ andcc %o5, 63, %o3 ! is sp1 block aligned?
+ bz,pt %xcc, .blkwr ! now block aligned
+ sub %o3, 64, %o3 ! o3 is -(bytes till block aligned)
+ add %o2, %o3, %o2 ! o2 is the remainder
+
+ ! Store -(%o3) bytes till dst is block (64 byte) aligned.
+ ! Use long word stores.
+ ! Recall that dst is already long word aligned
+1:
+ addcc %o3, 8, %o3
+ stx %o1, [%o5]
+ bl,pt %xcc, 1b
+ add %o5, 8, %o5
+
+ ! Now sp1 is block aligned
+.blkwr:
+ andn %o2, 63, %o4 ! calculate size of blocks in bytes
+ brz,pn %o1, .wrzero ! special case if c == 0
+ and %o2, 63, %o3 ! %o3 = bytes left after blk stores.
+
+ set MIN_LOOP, %g1
+ cmp %o4, %g1 ! check there are enough bytes to set
+ blu,pn %xcc, .short_set ! to justify cost of membar
+ ! must be > pre-cleared lines
+ nop
+
+ ! initial cache-clearing stores
+ ! get store pipeline moving
+ rd %asi, %g3 ! save %asi to be restored later
+ wr %g0, ASI_STBIMRU_P, %asi
+
+ ! Primary memset loop for large memsets
+.wr_loop:
+ sub %o5, 8, %o5 ! adjust %o5 for ASI store alignment
+ mov ST_CHUNK, %g1
+.wr_loop_start:
+ stxa %o1, [%o5+8]%asi
+ subcc %g1, 4, %g1
+ stxa %o1, [%o5+8+64]%asi
+ add %o5, 256, %o5
+ stxa %o1, [%o5+8-128]%asi
+ bgu %xcc, .wr_loop_start
+ stxa %o1, [%o5+8-64]%asi
+
+ sub %o5, ST_CHUNK*64, %o5 ! reset %o5
+ mov ST_CHUNK, %g1
+
+.wr_loop_rest:
+ stxa %o1, [%o5+8+8]%asi
+ sub %o4, 64, %o4
+ stxa %o1, [%o5+16+8]%asi
+ subcc %g1, 1, %g1
+ stxa %o1, [%o5+24+8]%asi
+ stxa %o1, [%o5+32+8]%asi
+ stxa %o1, [%o5+40+8]%asi
+ add %o5, 64, %o5
+ stxa %o1, [%o5-8]%asi
+ bgu %xcc, .wr_loop_rest
+ stxa %o1, [%o5]ASI_STBI_P
+
+ ! If more than ST_CHUNK*64 bytes remain to set, continue
+ ! setting the first long word of each cache line in advance
+ ! to keep the store pipeline moving.
+
+ cmp %o4, ST_CHUNK*64
+ bge,pt %xcc, .wr_loop_start
+ mov ST_CHUNK, %g1
+
+ brz,a,pn %o4, .asi_done
+ add %o5, 8, %o5 ! restore %o5 offset
+
+.wr_loop_small:
+ stxa %o1, [%o5+8]%asi
+ stxa %o1, [%o5+8+8]%asi
+ stxa %o1, [%o5+16+8]%asi
+ stxa %o1, [%o5+24+8]%asi
+ stxa %o1, [%o5+32+8]%asi
+ subcc %o4, 64, %o4
+ stxa %o1, [%o5+40+8]%asi
+ add %o5, 64, %o5
+ stxa %o1, [%o5-8]%asi
+ bgu,pt %xcc, .wr_loop_small
+ stxa %o1, [%o5]ASI_STBI_P
+
+ ba .asi_done
+ add %o5, 8, %o5 ! restore %o5 offset
+
+ ! Special case loop for zero fill memsets
+ ! For each 64 byte cache line, single STBI to first element
+ ! clears line
+.wrzero:
+ cmp %o4, MIN_ZERO ! check if enough bytes to set
+ ! to pay %asi + membar cost
+ blu %xcc, .short_set
+ nop
+ sub %o4, 256, %o4
+
+.wrzero_loop:
+ mov 64, %g3
+ stxa %o1, [%o5]ASI_STBI_P
+ subcc %o4, 256, %o4
+ stxa %o1, [%o5+%g3]ASI_STBI_P
+ add %o5, 256, %o5
+ sub %g3, 192, %g3
+ stxa %o1, [%o5+%g3]ASI_STBI_P
+ add %g3, 64, %g3
+ bge,pt %xcc, .wrzero_loop
+ stxa %o1, [%o5+%g3]ASI_STBI_P
+ add %o4, 256, %o4
+
+ brz,pn %o4, .bsi_done
+ nop
+
+.wrzero_small:
+ stxa %o1, [%o5]ASI_STBI_P
+ subcc %o4, 64, %o4
+ bgu,pt %xcc, .wrzero_small
+ add %o5, 64, %o5
+ ba,a .bsi_done
+
+.asi_done:
+ wr %g3, 0x0, %asi ! restored saved %asi
+.bsi_done:
+ membar #StoreStore ! required by use of Block Store Init
+
+.short_set:
+ cmp %o4, 64 ! check if 64 bytes to set
+ blu %xcc, 5f
+ nop
+4: ! set final blocks of 64 bytes
+ stx %o1, [%o5]
+ stx %o1, [%o5+8]
+ stx %o1, [%o5+16]
+ stx %o1, [%o5+24]
+ subcc %o4, 64, %o4
+ stx %o1, [%o5+32]
+ stx %o1, [%o5+40]
+ add %o5, 64, %o5
+ stx %o1, [%o5-16]
+ bgu,pt %xcc, 4b
+ stx %o1, [%o5-8]
+
+5:
+ ! Set the remaining long words
+.wrshort:
+ subcc %o3, 8, %o3 ! Can we store any long words?
+ blu,pn %xcc, .wrchars
+ and %o2, 7, %o2 ! calc bytes left after long words
+6:
+ subcc %o3, 8, %o3
+ stx %o1, [%o5] ! store the long words
+ bgeu,pt %xcc, 6b
+ add %o5, 8, %o5
+
+.wrchars: ! check for extra chars
+ brnz %o2, .wrfin
+ nop
+ retl
+ nop
+
+.wdalign:
+ andcc %o5, 3, %o3 ! is sp1 aligned on a word boundary
+ bz,pn %xcc, .wrword
+ andn %o2, 3, %o3 ! create word sized count in %o3
+
+ dec %o2 ! decrement count
+ stb %o1, [%o5] ! clear a byte
+ b .wdalign
+ inc %o5 ! next byte
+
+.wrword:
+ subcc %o3, 4, %o3
+ st %o1, [%o5] ! 4-byte writing loop
+ bnz,pt %xcc, .wrword
+ add %o5, 4, %o5
+
+ and %o2, 3, %o2 ! leftover count, if any
+
+.wrchar:
+ ! Set the remaining bytes, if any
+ brz %o2, .exit
+ nop
+.wrfin:
+ deccc %o2
+ stb %o1, [%o5]
+ bgu,pt %xcc, .wrfin
+ inc %o5
+.exit:
+ retl ! %o0 was preserved
+ nop
+
+ .size M7memset,.-M7memset
diff --git a/arch/sparc/lib/M7patch.S b/arch/sparc/lib/M7patch.S
new file mode 100644
index 000000000000..9000b7bc5f2b
--- /dev/null
+++ b/arch/sparc/lib/M7patch.S
@@ -0,0 +1,51 @@
+/*
+ * M7patch.S: Patch generic routines with M7 variant.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/linkage.h>
+
+#define BRANCH_ALWAYS 0x10680000
+#define NOP 0x01000000
+#define NG_DO_PATCH(OLD, NEW) \
+ sethi %hi(NEW), %g1; \
+ or %g1, %lo(NEW), %g1; \
+ sethi %hi(OLD), %g2; \
+ or %g2, %lo(OLD), %g2; \
+ sub %g1, %g2, %g1; \
+ sethi %hi(BRANCH_ALWAYS), %g3; \
+ sll %g1, 11, %g1; \
+ srl %g1, 11 + 2, %g1; \
+ or %g3, %lo(BRANCH_ALWAYS), %g3; \
+ or %g3, %g1, %g3; \
+ stw %g3, [%g2]; \
+ sethi %hi(NOP), %g3; \
+ or %g3, %lo(NOP), %g3; \
+ stw %g3, [%g2 + 0x4]; \
+ flush %g2;
+
+ENTRY(m7_patch_copyops)
+ NG_DO_PATCH(memcpy, M7memcpy)
+ NG_DO_PATCH(raw_copy_from_user, M7copy_from_user)
+ NG_DO_PATCH(raw_copy_to_user, M7copy_to_user)
+ retl
+ nop
+ENDPROC(m7_patch_copyops)
+
+ENTRY(m7_patch_bzero)
+ NG_DO_PATCH(memset, M7memset)
+ NG_DO_PATCH(__bzero, M7bzero)
+ NG_DO_PATCH(__clear_user, NGclear_user)
+ NG_DO_PATCH(tsb_init, NGtsb_init)
+ retl
+ nop
+ENDPROC(m7_patch_bzero)
+
+ENTRY(m7_patch_pageops)
+ NG_DO_PATCH(copy_user_page, NG4copy_user_page)
+ NG_DO_PATCH(_clear_page, M7clear_page)
+ NG_DO_PATCH(clear_user_page, M7clear_user_page)
+ retl
+ nop
+ENDPROC(m7_patch_pageops)
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 07c03e72d812..a1a2d39ec96e 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -36,6 +36,11 @@ lib-$(CONFIG_SPARC64) += NG2patch.o
lib-$(CONFIG_SPARC64) += NG4memcpy.o NG4copy_from_user.o NG4copy_to_user.o
lib-$(CONFIG_SPARC64) += NG4patch.o NG4copy_page.o NG4clear_page.o NG4memset.o
+lib-$(CONFIG_SPARC64) += Memcpy_utils.o
+
+lib-$(CONFIG_SPARC64) += M7memcpy.o M7copy_from_user.o M7copy_to_user.o
+lib-$(CONFIG_SPARC64) += M7patch.o M7memset.o
+
lib-$(CONFIG_SPARC64) += GENmemcpy.o GENcopy_from_user.o GENcopy_to_user.o
lib-$(CONFIG_SPARC64) += GENpatch.o GENpage.o GENbzero.o
diff --git a/arch/sparc/lib/Memcpy_utils.S b/arch/sparc/lib/Memcpy_utils.S
new file mode 100644
index 000000000000..64fbac28b3db
--- /dev/null
+++ b/arch/sparc/lib/Memcpy_utils.S
@@ -0,0 +1,345 @@
+#ifndef __ASM_MEMCPY_UTILS
+#define __ASM_MEMCPY_UTILS
+
+#include <linux/linkage.h>
+#include <asm/asi.h>
+#include <asm/visasm.h>
+
+ENTRY(__restore_asi_fp)
+ VISExitHalf
+ retl
+ wr %g0, ASI_AIUS, %asi
+ENDPROC(__restore_asi_fp)
+
+ENTRY(__restore_asi)
+ retl
+ wr %g0, ASI_AIUS, %asi
+ENDPROC(__restore_asi)
+
+ENTRY(memcpy_retl_o2)
+ ba,pt %xcc, __restore_asi
+ mov %o2, %o0
+ENDPROC(memcpy_retl_o2)
+ENTRY(memcpy_retl_o2_plus_1)
+ ba,pt %xcc, __restore_asi
+ add %o2, 1, %o0
+ENDPROC(memcpy_retl_o2_plus_1)
+ENTRY(memcpy_retl_o2_plus_3)
+ ba,pt %xcc, __restore_asi
+ add %o2, 3, %o0
+ENDPROC(memcpy_retl_o2_plus_3)
+ENTRY(memcpy_retl_o2_plus_4)
+ ba,pt %xcc, __restore_asi
+ add %o2, 4, %o0
+ENDPROC(memcpy_retl_o2_plus_4)
+ENTRY(memcpy_retl_o2_plus_5)
+ ba,pt %xcc, __restore_asi
+ add %o2, 5, %o0
+ENDPROC(memcpy_retl_o2_plus_5)
+ENTRY(memcpy_retl_o2_plus_6)
+ ba,pt %xcc, __restore_asi
+ add %o2, 6, %o0
+ENDPROC(memcpy_retl_o2_plus_6)
+ENTRY(memcpy_retl_o2_plus_7)
+ ba,pt %xcc, __restore_asi
+ add %o2, 7, %o0
+ENDPROC(memcpy_retl_o2_plus_7)
+ENTRY(memcpy_retl_o2_plus_8)
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_8)
+ENTRY(memcpy_retl_o2_plus_15)
+ ba,pt %xcc, __restore_asi
+ add %o2, 15, %o0
+ENDPROC(memcpy_retl_o2_plus_15)
+ENTRY(memcpy_retl_o2_plus_15_8)
+ add %o2, 15, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_15_8)
+ENTRY(memcpy_retl_o2_plus_16)
+ ba,pt %xcc, __restore_asi
+ add %o2, 16, %o0
+ENDPROC(memcpy_retl_o2_plus_16)
+ENTRY(memcpy_retl_o2_plus_24)
+ ba,pt %xcc, __restore_asi
+ add %o2, 24, %o0
+ENDPROC(memcpy_retl_o2_plus_24)
+ENTRY(memcpy_retl_o2_plus_31)
+ ba,pt %xcc, __restore_asi
+ add %o2, 31, %o0
+ENDPROC(memcpy_retl_o2_plus_31)
+ENTRY(memcpy_retl_o2_plus_32)
+ ba,pt %xcc, __restore_asi
+ add %o2, 32, %o0
+ENDPROC(memcpy_retl_o2_plus_32)
+ENTRY(memcpy_retl_o2_plus_31_32)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 32, %o0
+ENDPROC(memcpy_retl_o2_plus_31_32)
+ENTRY(memcpy_retl_o2_plus_31_24)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 24, %o0
+ENDPROC(memcpy_retl_o2_plus_31_24)
+ENTRY(memcpy_retl_o2_plus_31_16)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 16, %o0
+ENDPROC(memcpy_retl_o2_plus_31_16)
+ENTRY(memcpy_retl_o2_plus_31_8)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_31_8)
+ENTRY(memcpy_retl_o2_plus_63)
+ ba,pt %xcc, __restore_asi
+ add %o2, 63, %o0
+ENDPROC(memcpy_retl_o2_plus_63)
+ENTRY(memcpy_retl_o2_plus_63_64)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 64, %o0
+ENDPROC(memcpy_retl_o2_plus_63_64)
+ENTRY(memcpy_retl_o2_plus_63_56)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 56, %o0
+ENDPROC(memcpy_retl_o2_plus_63_56)
+ENTRY(memcpy_retl_o2_plus_63_48)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 48, %o0
+ENDPROC(memcpy_retl_o2_plus_63_48)
+ENTRY(memcpy_retl_o2_plus_63_40)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 40, %o0
+ENDPROC(memcpy_retl_o2_plus_63_40)
+ENTRY(memcpy_retl_o2_plus_63_32)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 32, %o0
+ENDPROC(memcpy_retl_o2_plus_63_32)
+ENTRY(memcpy_retl_o2_plus_63_24)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 24, %o0
+ENDPROC(memcpy_retl_o2_plus_63_24)
+ENTRY(memcpy_retl_o2_plus_63_16)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 16, %o0
+ENDPROC(memcpy_retl_o2_plus_63_16)
+ENTRY(memcpy_retl_o2_plus_63_8)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_63_8)
+ENTRY(memcpy_retl_o2_plus_o5)
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5)
+ENTRY(memcpy_retl_o2_plus_o5_plus_1)
+ add %o5, 1, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_1)
+ENTRY(memcpy_retl_o2_plus_o5_plus_4)
+ add %o5, 4, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_4)
+ENTRY(memcpy_retl_o2_plus_o5_plus_8)
+ add %o5, 8, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_8)
+ENTRY(memcpy_retl_o2_plus_o5_plus_16)
+ add %o5, 16, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_16)
+ENTRY(memcpy_retl_o2_plus_o5_plus_24)
+ add %o5, 24, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_24)
+ENTRY(memcpy_retl_o2_plus_o5_plus_32)
+ add %o5, 32, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_32)
+ENTRY(memcpy_retl_o2_plus_o5_64)
+ add %o5, 32, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_64)
+ENTRY(memcpy_retl_o2_plus_g1)
+ ba,pt %xcc, __restore_asi
+ add %o2, %g1, %o0
+ENDPROC(memcpy_retl_o2_plus_g1)
+ENTRY(memcpy_retl_o2_plus_g1_plus_1)
+ add %g1, 1, %g1
+ ba,pt %xcc, __restore_asi
+ add %o2, %g1, %o0
+ENDPROC(memcpy_retl_o2_plus_g1_plus_1)
+ENTRY(memcpy_retl_o2_plus_g1_plus_8)
+ add %g1, 8, %g1
+ ba,pt %xcc, __restore_asi
+ add %o2, %g1, %o0
+ENDPROC(memcpy_retl_o2_plus_g1_plus_8)
+ENTRY(memcpy_retl_o2_plus_o4)
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4)
+ENTRY(memcpy_retl_o2_plus_o4_plus_8)
+ add %o4, 8, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_8)
+ENTRY(memcpy_retl_o2_plus_o4_plus_16)
+ add %o4, 16, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_16)
+ENTRY(memcpy_retl_o2_plus_o4_plus_24)
+ add %o4, 24, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_24)
+ENTRY(memcpy_retl_o2_plus_o4_plus_32)
+ add %o4, 32, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_32)
+ENTRY(memcpy_retl_o2_plus_o4_plus_40)
+ add %o4, 40, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_40)
+ENTRY(memcpy_retl_o2_plus_o4_plus_48)
+ add %o4, 48, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_48)
+ENTRY(memcpy_retl_o2_plus_o4_plus_56)
+ add %o4, 56, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_56)
+ENTRY(memcpy_retl_o2_plus_o4_plus_64)
+ add %o4, 64, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_64)
+ENTRY(memcpy_retl_o2_plus_o5_plus_64)
+ add %o5, 64, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_64)
+ENTRY(memcpy_retl_o2_plus_o3_fp)
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o3, %o0
+ENDPROC(memcpy_retl_o2_plus_o3_fp)
+ENTRY(memcpy_retl_o2_plus_o3_plus_1_fp)
+ add %o3, 1, %o3
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o3, %o0
+ENDPROC(memcpy_retl_o2_plus_o3_plus_1_fp)
+ENTRY(memcpy_retl_o2_plus_o3_plus_4_fp)
+ add %o3, 4, %o3
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o3, %o0
+ENDPROC(memcpy_retl_o2_plus_o3_plus_4_fp)
+ENTRY(memcpy_retl_o2_plus_o4_fp)
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_8_fp)
+ add %o4, 8, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_8_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_16_fp)
+ add %o4, 16, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_16_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_24_fp)
+ add %o4, 24, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_24_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_32_fp)
+ add %o4, 32, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_32_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_40_fp)
+ add %o4, 40, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_40_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_48_fp)
+ add %o4, 48, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_48_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_56_fp)
+ add %o4, 56, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_56_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_64_fp)
+ add %o4, 64, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_64_fp)
+ENTRY(memcpy_retl_o2_plus_o5_fp)
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_64_fp)
+ add %o5, 64, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_64_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_56_fp)
+ add %o5, 56, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_56_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_48_fp)
+ add %o5, 48, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_48_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_40_fp)
+ add %o5, 40, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_40_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_32_fp)
+ add %o5, 32, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_32_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_24_fp)
+ add %o5, 24, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_24_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_16_fp)
+ add %o5, 16, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_16_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_8_fp)
+ add %o5, 8, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_8_fp)
+
+#endif
diff --git a/arch/sparc/lib/NG4memcpy.S b/arch/sparc/lib/NG4memcpy.S
index 78ea962edcbe..b5dacd1d2078 100644
--- a/arch/sparc/lib/NG4memcpy.S
+++ b/arch/sparc/lib/NG4memcpy.S
@@ -94,155 +94,6 @@
.text
#ifndef EX_RETVAL
#define EX_RETVAL(x) x
-__restore_asi_fp:
- VISExitHalf
-__restore_asi:
- retl
- wr %g0, ASI_AIUS, %asi
-
-ENTRY(NG4_retl_o2)
- ba,pt %xcc, __restore_asi
- mov %o2, %o0
-ENDPROC(NG4_retl_o2)
-ENTRY(NG4_retl_o2_plus_1)
- ba,pt %xcc, __restore_asi
- add %o2, 1, %o0
-ENDPROC(NG4_retl_o2_plus_1)
-ENTRY(NG4_retl_o2_plus_4)
- ba,pt %xcc, __restore_asi
- add %o2, 4, %o0
-ENDPROC(NG4_retl_o2_plus_4)
-ENTRY(NG4_retl_o2_plus_o5)
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5)
-ENTRY(NG4_retl_o2_plus_o5_plus_4)
- add %o5, 4, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_4)
-ENTRY(NG4_retl_o2_plus_o5_plus_8)
- add %o5, 8, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_8)
-ENTRY(NG4_retl_o2_plus_o5_plus_16)
- add %o5, 16, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_16)
-ENTRY(NG4_retl_o2_plus_o5_plus_24)
- add %o5, 24, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_24)
-ENTRY(NG4_retl_o2_plus_o5_plus_32)
- add %o5, 32, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_32)
-ENTRY(NG4_retl_o2_plus_g1)
- ba,pt %xcc, __restore_asi
- add %o2, %g1, %o0
-ENDPROC(NG4_retl_o2_plus_g1)
-ENTRY(NG4_retl_o2_plus_g1_plus_1)
- add %g1, 1, %g1
- ba,pt %xcc, __restore_asi
- add %o2, %g1, %o0
-ENDPROC(NG4_retl_o2_plus_g1_plus_1)
-ENTRY(NG4_retl_o2_plus_g1_plus_8)
- add %g1, 8, %g1
- ba,pt %xcc, __restore_asi
- add %o2, %g1, %o0
-ENDPROC(NG4_retl_o2_plus_g1_plus_8)
-ENTRY(NG4_retl_o2_plus_o4)
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4)
-ENTRY(NG4_retl_o2_plus_o4_plus_8)
- add %o4, 8, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_8)
-ENTRY(NG4_retl_o2_plus_o4_plus_16)
- add %o4, 16, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_16)
-ENTRY(NG4_retl_o2_plus_o4_plus_24)
- add %o4, 24, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_24)
-ENTRY(NG4_retl_o2_plus_o4_plus_32)
- add %o4, 32, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_32)
-ENTRY(NG4_retl_o2_plus_o4_plus_40)
- add %o4, 40, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_40)
-ENTRY(NG4_retl_o2_plus_o4_plus_48)
- add %o4, 48, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_48)
-ENTRY(NG4_retl_o2_plus_o4_plus_56)
- add %o4, 56, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_56)
-ENTRY(NG4_retl_o2_plus_o4_plus_64)
- add %o4, 64, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_64)
-ENTRY(NG4_retl_o2_plus_o4_fp)
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_8_fp)
- add %o4, 8, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_8_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_16_fp)
- add %o4, 16, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_16_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_24_fp)
- add %o4, 24, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_24_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_32_fp)
- add %o4, 32, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_32_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_40_fp)
- add %o4, 40, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_40_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_48_fp)
- add %o4, 48, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_48_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_56_fp)
- add %o4, 56, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_56_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_64_fp)
- add %o4, 64, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_64_fp)
#endif
.align 64
@@ -275,12 +126,12 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
sub %o2, %g1, %o2
-1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
add %o1, 1, %o1
subcc %g1, 1, %g1
add %o0, 1, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stb, %g2, %o0 - 0x01), NG4_retl_o2_plus_g1_plus_1)
+ EX_ST(STORE(stb, %g2, %o0 - 0x01), memcpy_retl_o2_plus_g1_plus_1)
51: LOAD(prefetch, %o1 + 0x040, #n_reads_strong)
LOAD(prefetch, %o1 + 0x080, #n_reads_strong)
@@ -305,43 +156,43 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
brz,pt %g1, .Llarge_aligned
sub %o2, %g1, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
add %o1, 8, %o1
subcc %g1, 8, %g1
add %o0, 8, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stx, %g2, %o0 - 0x08), NG4_retl_o2_plus_g1_plus_8)
+ EX_ST(STORE(stx, %g2, %o0 - 0x08), memcpy_retl_o2_plus_g1_plus_8)
.Llarge_aligned:
/* len >= 0x80 && src 8-byte aligned && dest 8-byte aligned */
andn %o2, 0x3f, %o4
sub %o2, %o4, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o4)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o4)
add %o1, 0x40, %o1
- EX_LD(LOAD(ldx, %o1 - 0x38, %g2), NG4_retl_o2_plus_o4)
+ EX_LD(LOAD(ldx, %o1 - 0x38, %g2), memcpy_retl_o2_plus_o4)
subcc %o4, 0x40, %o4
- EX_LD(LOAD(ldx, %o1 - 0x30, %g3), NG4_retl_o2_plus_o4_plus_64)
- EX_LD(LOAD(ldx, %o1 - 0x28, GLOBAL_SPARE), NG4_retl_o2_plus_o4_plus_64)
- EX_LD(LOAD(ldx, %o1 - 0x20, %o5), NG4_retl_o2_plus_o4_plus_64)
- EX_ST(STORE_INIT(%g1, %o0), NG4_retl_o2_plus_o4_plus_64)
+ EX_LD(LOAD(ldx, %o1 - 0x30, %g3), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD(LOAD(ldx, %o1 - 0x28, GLOBAL_SPARE), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD(LOAD(ldx, %o1 - 0x20, %o5), memcpy_retl_o2_plus_o4_plus_64)
+ EX_ST(STORE_INIT(%g1, %o0), memcpy_retl_o2_plus_o4_plus_64)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(%g2, %o0), NG4_retl_o2_plus_o4_plus_56)
+ EX_ST(STORE_INIT(%g2, %o0), memcpy_retl_o2_plus_o4_plus_56)
add %o0, 0x08, %o0
- EX_LD(LOAD(ldx, %o1 - 0x18, %g2), NG4_retl_o2_plus_o4_plus_48)
- EX_ST(STORE_INIT(%g3, %o0), NG4_retl_o2_plus_o4_plus_48)
+ EX_LD(LOAD(ldx, %o1 - 0x18, %g2), memcpy_retl_o2_plus_o4_plus_48)
+ EX_ST(STORE_INIT(%g3, %o0), memcpy_retl_o2_plus_o4_plus_48)
add %o0, 0x08, %o0
- EX_LD(LOAD(ldx, %o1 - 0x10, %g3), NG4_retl_o2_plus_o4_plus_40)
- EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), NG4_retl_o2_plus_o4_plus_40)
+ EX_LD(LOAD(ldx, %o1 - 0x10, %g3), memcpy_retl_o2_plus_o4_plus_40)
+ EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), memcpy_retl_o2_plus_o4_plus_40)
add %o0, 0x08, %o0
- EX_LD(LOAD(ldx, %o1 - 0x08, GLOBAL_SPARE), NG4_retl_o2_plus_o4_plus_32)
- EX_ST(STORE_INIT(%o5, %o0), NG4_retl_o2_plus_o4_plus_32)
+ EX_LD(LOAD(ldx, %o1 - 0x08, GLOBAL_SPARE), memcpy_retl_o2_plus_o4_plus_32)
+ EX_ST(STORE_INIT(%o5, %o0), memcpy_retl_o2_plus_o4_plus_32)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(%g2, %o0), NG4_retl_o2_plus_o4_plus_24)
+ EX_ST(STORE_INIT(%g2, %o0), memcpy_retl_o2_plus_o4_plus_24)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(%g3, %o0), NG4_retl_o2_plus_o4_plus_16)
+ EX_ST(STORE_INIT(%g3, %o0), memcpy_retl_o2_plus_o4_plus_16)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), NG4_retl_o2_plus_o4_plus_8)
+ EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), memcpy_retl_o2_plus_o4_plus_8)
add %o0, 0x08, %o0
bne,pt %icc, 1b
LOAD(prefetch, %o1 + 0x200, #n_reads_strong)
@@ -367,17 +218,17 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
sub %o2, %o4, %o2
alignaddr %o1, %g0, %g1
add %o1, %o4, %o1
- EX_LD_FP(LOAD(ldd, %g1 + 0x00, %f0), NG4_retl_o2_plus_o4)
-1: EX_LD_FP(LOAD(ldd, %g1 + 0x08, %f2), NG4_retl_o2_plus_o4)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x00, %f0), memcpy_retl_o2_plus_o4)
+1: EX_LD_FP(LOAD(ldd, %g1 + 0x08, %f2), memcpy_retl_o2_plus_o4)
subcc %o4, 0x40, %o4
- EX_LD_FP(LOAD(ldd, %g1 + 0x10, %f4), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x18, %f6), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x20, %f8), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x28, %f10), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x30, %f12), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x38, %f14), NG4_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x10, %f4), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x18, %f6), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x20, %f8), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x28, %f10), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x30, %f12), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x38, %f14), memcpy_retl_o2_plus_o4_plus_64)
faligndata %f0, %f2, %f16
- EX_LD_FP(LOAD(ldd, %g1 + 0x40, %f0), NG4_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x40, %f0), memcpy_retl_o2_plus_o4_plus_64)
faligndata %f2, %f4, %f18
add %g1, 0x40, %g1
faligndata %f4, %f6, %f20
@@ -386,14 +237,14 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
faligndata %f10, %f12, %f26
faligndata %f12, %f14, %f28
faligndata %f14, %f0, %f30
- EX_ST_FP(STORE(std, %f16, %o0 + 0x00), NG4_retl_o2_plus_o4_plus_64)
- EX_ST_FP(STORE(std, %f18, %o0 + 0x08), NG4_retl_o2_plus_o4_plus_56)
- EX_ST_FP(STORE(std, %f20, %o0 + 0x10), NG4_retl_o2_plus_o4_plus_48)
- EX_ST_FP(STORE(std, %f22, %o0 + 0x18), NG4_retl_o2_plus_o4_plus_40)
- EX_ST_FP(STORE(std, %f24, %o0 + 0x20), NG4_retl_o2_plus_o4_plus_32)
- EX_ST_FP(STORE(std, %f26, %o0 + 0x28), NG4_retl_o2_plus_o4_plus_24)
- EX_ST_FP(STORE(std, %f28, %o0 + 0x30), NG4_retl_o2_plus_o4_plus_16)
- EX_ST_FP(STORE(std, %f30, %o0 + 0x38), NG4_retl_o2_plus_o4_plus_8)
+ EX_ST_FP(STORE(std, %f16, %o0 + 0x00), memcpy_retl_o2_plus_o4_plus_64)
+ EX_ST_FP(STORE(std, %f18, %o0 + 0x08), memcpy_retl_o2_plus_o4_plus_56)
+ EX_ST_FP(STORE(std, %f20, %o0 + 0x10), memcpy_retl_o2_plus_o4_plus_48)
+ EX_ST_FP(STORE(std, %f22, %o0 + 0x18), memcpy_retl_o2_plus_o4_plus_40)
+ EX_ST_FP(STORE(std, %f24, %o0 + 0x20), memcpy_retl_o2_plus_o4_plus_32)
+ EX_ST_FP(STORE(std, %f26, %o0 + 0x28), memcpy_retl_o2_plus_o4_plus_24)
+ EX_ST_FP(STORE(std, %f28, %o0 + 0x30), memcpy_retl_o2_plus_o4_plus_16)
+ EX_ST_FP(STORE(std, %f30, %o0 + 0x38), memcpy_retl_o2_plus_o4_plus_8)
add %o0, 0x40, %o0
bne,pt %icc, 1b
LOAD(prefetch, %g1 + 0x200, #n_reads_strong)
@@ -421,38 +272,38 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
andncc %o2, 0x20 - 1, %o5
be,pn %icc, 2f
sub %o2, %o5, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
- EX_LD(LOAD(ldx, %o1 + 0x08, %g2), NG4_retl_o2_plus_o5)
- EX_LD(LOAD(ldx, %o1 + 0x10, GLOBAL_SPARE), NG4_retl_o2_plus_o5)
- EX_LD(LOAD(ldx, %o1 + 0x18, %o4), NG4_retl_o2_plus_o5)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x08, %g2), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x10, GLOBAL_SPARE), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x18, %o4), memcpy_retl_o2_plus_o5)
add %o1, 0x20, %o1
subcc %o5, 0x20, %o5
- EX_ST(STORE(stx, %g1, %o0 + 0x00), NG4_retl_o2_plus_o5_plus_32)
- EX_ST(STORE(stx, %g2, %o0 + 0x08), NG4_retl_o2_plus_o5_plus_24)
- EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x10), NG4_retl_o2_plus_o5_plus_24)
- EX_ST(STORE(stx, %o4, %o0 + 0x18), NG4_retl_o2_plus_o5_plus_8)
+ EX_ST(STORE(stx, %g1, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_32)
+ EX_ST(STORE(stx, %g2, %o0 + 0x08), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x10), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, %o4, %o0 + 0x18), memcpy_retl_o2_plus_o5_plus_8)
bne,pt %icc, 1b
add %o0, 0x20, %o0
2: andcc %o2, 0x18, %o5
be,pt %icc, 3f
sub %o2, %o5, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o5)
add %o1, 0x08, %o1
add %o0, 0x08, %o0
subcc %o5, 0x08, %o5
bne,pt %icc, 1b
- EX_ST(STORE(stx, %g1, %o0 - 0x08), NG4_retl_o2_plus_o5_plus_8)
+ EX_ST(STORE(stx, %g1, %o0 - 0x08), memcpy_retl_o2_plus_o5_plus_8)
3: brz,pt %o2, .Lexit
cmp %o2, 0x04
bl,pn %icc, .Ltiny
nop
- EX_LD(LOAD(lduw, %o1 + 0x00, %g1), NG4_retl_o2)
+ EX_LD(LOAD(lduw, %o1 + 0x00, %g1), memcpy_retl_o2)
add %o1, 0x04, %o1
add %o0, 0x04, %o0
subcc %o2, 0x04, %o2
bne,pn %icc, .Ltiny
- EX_ST(STORE(stw, %g1, %o0 - 0x04), NG4_retl_o2_plus_4)
+ EX_ST(STORE(stw, %g1, %o0 - 0x04), memcpy_retl_o2_plus_4)
ba,a,pt %icc, .Lexit
.Lmedium_unaligned:
/* First get dest 8 byte aligned. */
@@ -461,12 +312,12 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
brz,pt %g1, 2f
sub %o2, %g1, %o2
-1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
add %o1, 1, %o1
subcc %g1, 1, %g1
add %o0, 1, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stb, %g2, %o0 - 0x01), NG4_retl_o2_plus_g1_plus_1)
+ EX_ST(STORE(stb, %g2, %o0 - 0x01), memcpy_retl_o2_plus_g1_plus_1)
2:
and %o1, 0x7, %g1
brz,pn %g1, .Lmedium_noprefetch
@@ -474,16 +325,16 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
mov 64, %g2
sub %g2, %g1, %g2
andn %o1, 0x7, %o1
- EX_LD(LOAD(ldx, %o1 + 0x00, %o4), NG4_retl_o2)
+ EX_LD(LOAD(ldx, %o1 + 0x00, %o4), memcpy_retl_o2)
sllx %o4, %g1, %o4
andn %o2, 0x08 - 1, %o5
sub %o2, %o5, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x08, %g3), NG4_retl_o2_plus_o5)
+1: EX_LD(LOAD(ldx, %o1 + 0x08, %g3), memcpy_retl_o2_plus_o5)
add %o1, 0x08, %o1
subcc %o5, 0x08, %o5
srlx %g3, %g2, GLOBAL_SPARE
or GLOBAL_SPARE, %o4, GLOBAL_SPARE
- EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x00), NG4_retl_o2_plus_o5_plus_8)
+ EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_8)
add %o0, 0x08, %o0
bne,pt %icc, 1b
sllx %g3, %g1, %o4
@@ -494,17 +345,17 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
ba,pt %icc, .Lsmall_unaligned
.Ltiny:
- EX_LD(LOAD(ldub, %o1 + 0x00, %g1), NG4_retl_o2)
+ EX_LD(LOAD(ldub, %o1 + 0x00, %g1), memcpy_retl_o2)
subcc %o2, 1, %o2
be,pn %icc, .Lexit
- EX_ST(STORE(stb, %g1, %o0 + 0x00), NG4_retl_o2_plus_1)
- EX_LD(LOAD(ldub, %o1 + 0x01, %g1), NG4_retl_o2)
+ EX_ST(STORE(stb, %g1, %o0 + 0x00), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x01, %g1), memcpy_retl_o2)
subcc %o2, 1, %o2
be,pn %icc, .Lexit
- EX_ST(STORE(stb, %g1, %o0 + 0x01), NG4_retl_o2_plus_1)
- EX_LD(LOAD(ldub, %o1 + 0x02, %g1), NG4_retl_o2)
+ EX_ST(STORE(stb, %g1, %o0 + 0x01), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x02, %g1), memcpy_retl_o2)
ba,pt %icc, .Lexit
- EX_ST(STORE(stb, %g1, %o0 + 0x02), NG4_retl_o2)
+ EX_ST(STORE(stb, %g1, %o0 + 0x02), memcpy_retl_o2)
.Lsmall:
andcc %g2, 0x3, %g0
@@ -512,23 +363,23 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
andn %o2, 0x4 - 1, %o5
sub %o2, %o5, %o2
1:
- EX_LD(LOAD(lduw, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
+ EX_LD(LOAD(lduw, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o5)
add %o1, 0x04, %o1
subcc %o5, 0x04, %o5
add %o0, 0x04, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stw, %g1, %o0 - 0x04), NG4_retl_o2_plus_o5_plus_4)
+ EX_ST(STORE(stw, %g1, %o0 - 0x04), memcpy_retl_o2_plus_o5_plus_4)
brz,pt %o2, .Lexit
nop
ba,a,pt %icc, .Ltiny
.Lsmall_unaligned:
-1: EX_LD(LOAD(ldub, %o1 + 0x00, %g1), NG4_retl_o2)
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g1), memcpy_retl_o2)
add %o1, 1, %o1
add %o0, 1, %o0
subcc %o2, 1, %o2
bne,pt %icc, 1b
- EX_ST(STORE(stb, %g1, %o0 - 0x01), NG4_retl_o2_plus_1)
+ EX_ST(STORE(stb, %g1, %o0 - 0x01), memcpy_retl_o2_plus_1)
ba,a,pt %icc, .Lexit
nop
.size FUNC_NAME, .-FUNC_NAME
diff --git a/arch/sparc/lib/U3memcpy.S b/arch/sparc/lib/U3memcpy.S
index 5a8cb37f0a3b..f9b42b3c63b0 100644
--- a/arch/sparc/lib/U3memcpy.S
+++ b/arch/sparc/lib/U3memcpy.S
@@ -168,18 +168,25 @@ ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
srlx %o2, 31, %g2
cmp %g2, 0
+
+ /* software trap 5 "Range Check" if dst >= 0x80000000 */
tne %xcc, 5
PREAMBLE
mov %o0, %o4
+
+ /* if len == 0 */
cmp %o2, 0
- be,pn %XCC, 85f
+ be,pn %XCC, end_return
or %o0, %o1, %o3
+
+ /* if len < 16 */
cmp %o2, 16
- blu,a,pn %XCC, 80f
+ blu,a,pn %XCC, less_than_16
or %o3, %o2, %o3
+ /* if len < 192 */
cmp %o2, (3 * 64)
- blu,pt %XCC, 70f
+ blu,pt %XCC, less_than_192
andcc %o3, 0x7, %g0
/* Clobbers o5/g1/g2/g3/g7/icc/xcc. We must preserve
@@ -362,7 +369,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
cmp %o2, 0
add %o1, %g1, %o1
VISExitHalf
- be,pn %XCC, 85f
+ be,pn %XCC, end_return
sub %o0, %o1, %o3
andcc %g1, 0x7, %g0
@@ -392,14 +399,15 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
sub %o2, 2, %o2
1: andcc %o2, 0x1, %g0
- be,pt %icc, 85f
+ be,pt %icc, end_return
nop
EX_LD(LOAD(ldub, %o1, %o5), U3_retl_o2)
- ba,pt %xcc, 85f
+ ba,pt %xcc, end_return
EX_ST(STORE(stb, %o5, %o1 + %o3), U3_retl_o2)
.align 64
-70: /* 16 < len <= 64 */
+ /* 16 <= len < 192 */
+less_than_192:
bne,pn %XCC, 75f
sub %o0, %o1, %o3
@@ -429,7 +437,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
EX_ST(STORE(stw, %o5, %o1 + %o3), U3_retl_o2_plus_4)
add %o1, 0x4, %o1
1: cmp %o2, 0
- be,pt %XCC, 85f
+ be,pt %XCC, end_return
nop
ba,pt %xcc, 90f
nop
@@ -475,13 +483,14 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
srl %g1, 3, %g1
andcc %o2, 0x7, %o2
- be,pn %icc, 85f
+ be,pn %icc, end_return
add %o1, %g1, %o1
ba,pt %xcc, 90f
sub %o0, %o1, %o3
.align 64
-80: /* 0 < len <= 16 */
+ /* 0 < len < 16 */
+less_than_16:
andcc %o3, 0x3, %g0
bne,pn %XCC, 90f
sub %o0, %o1, %o3
@@ -493,7 +502,8 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
bgu,pt %XCC, 1b
add %o1, 4, %o1
-85: retl
+end_return:
+ retl
mov EX_RETVAL(%o4), %o0
.align 32