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authorIngo Molnar <mingo@elte.hu>2011-03-18 05:42:11 -0400
committerIngo Molnar <mingo@elte.hu>2011-03-18 05:44:26 -0400
commit2c76397bddd3abcd36aca1941f47570dbc249542 (patch)
tree2bfc4936a4bb15811effbbffd8497c144c738fbb
parent0d2eb44f631d9d0a826efa3156f157477fdaecf4 (diff)
x86: Clean up csum-copy_64.S a bit
The many stray whitespaces and other uncleanlinesses made this code almost unreadable to me - so fix those. No changes to the code. Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/lib/csum-copy_64.S240
1 files changed, 120 insertions, 120 deletions
diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
index ebf753e48ba9..fb903b758da8 100644
--- a/arch/x86/lib/csum-copy_64.S
+++ b/arch/x86/lib/csum-copy_64.S
@@ -1,6 +1,6 @@
1/* 1/*
2 * Copyright 2002,2003 Andi Kleen, SuSE Labs. 2 * Copyright 2002, 2003 Andi Kleen, SuSE Labs.
3 * 3 *
4 * This file is subject to the terms and conditions of the GNU General Public 4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file COPYING in the main directory of this archive 5 * License. See the file COPYING in the main directory of this archive
6 * for more details. No warranty for anything given at all. 6 * for more details. No warranty for anything given at all.
@@ -11,82 +11,82 @@
11 11
12/* 12/*
13 * Checksum copy with exception handling. 13 * Checksum copy with exception handling.
14 * On exceptions src_err_ptr or dst_err_ptr is set to -EFAULT and the 14 * On exceptions src_err_ptr or dst_err_ptr is set to -EFAULT and the
15 * destination is zeroed. 15 * destination is zeroed.
16 * 16 *
17 * Input 17 * Input
18 * rdi source 18 * rdi source
19 * rsi destination 19 * rsi destination
20 * edx len (32bit) 20 * edx len (32bit)
21 * ecx sum (32bit) 21 * ecx sum (32bit)
22 * r8 src_err_ptr (int) 22 * r8 src_err_ptr (int)
23 * r9 dst_err_ptr (int) 23 * r9 dst_err_ptr (int)
24 * 24 *
25 * Output 25 * Output
26 * eax 64bit sum. undefined in case of exception. 26 * eax 64bit sum. undefined in case of exception.
27 * 27 *
28 * Wrappers need to take care of valid exception sum and zeroing. 28 * Wrappers need to take care of valid exception sum and zeroing.
29 * They also should align source or destination to 8 bytes. 29 * They also should align source or destination to 8 bytes.
30 */ 30 */
31 31
32 .macro source 32 .macro source
3310: 3310:
34 .section __ex_table,"a" 34 .section __ex_table, "a"
35 .align 8 35 .align 8
36 .quad 10b,.Lbad_source 36 .quad 10b, .Lbad_source
37 .previous 37 .previous
38 .endm 38 .endm
39 39
40 .macro dest 40 .macro dest
4120: 4120:
42 .section __ex_table,"a" 42 .section __ex_table, "a"
43 .align 8 43 .align 8
44 .quad 20b,.Lbad_dest 44 .quad 20b, .Lbad_dest
45 .previous 45 .previous
46 .endm 46 .endm
47 47
48 .macro ignore L=.Lignore 48 .macro ignore L=.Lignore
4930: 4930:
50 .section __ex_table,"a" 50 .section __ex_table, "a"
51 .align 8 51 .align 8
52 .quad 30b,\L 52 .quad 30b, \L
53 .previous 53 .previous
54 .endm 54 .endm
55 55
56 56
57ENTRY(csum_partial_copy_generic) 57ENTRY(csum_partial_copy_generic)
58 CFI_STARTPROC 58 CFI_STARTPROC
59 cmpl $3*64,%edx 59 cmpl $3*64, %edx
60 jle .Lignore 60 jle .Lignore
61 61
62.Lignore: 62.Lignore:
63 subq $7*8,%rsp 63 subq $7*8, %rsp
64 CFI_ADJUST_CFA_OFFSET 7*8 64 CFI_ADJUST_CFA_OFFSET 7*8
65 movq %rbx,2*8(%rsp) 65 movq %rbx, 2*8(%rsp)
66 CFI_REL_OFFSET rbx, 2*8 66 CFI_REL_OFFSET rbx, 2*8
67 movq %r12,3*8(%rsp) 67 movq %r12, 3*8(%rsp)
68 CFI_REL_OFFSET r12, 3*8 68 CFI_REL_OFFSET r12, 3*8
69 movq %r14,4*8(%rsp) 69 movq %r14, 4*8(%rsp)
70 CFI_REL_OFFSET r14, 4*8 70 CFI_REL_OFFSET r14, 4*8
71 movq %r13,5*8(%rsp) 71 movq %r13, 5*8(%rsp)
72 CFI_REL_OFFSET r13, 5*8 72 CFI_REL_OFFSET r13, 5*8
73 movq %rbp,6*8(%rsp) 73 movq %rbp, 6*8(%rsp)
74 CFI_REL_OFFSET rbp, 6*8 74 CFI_REL_OFFSET rbp, 6*8
75 75
76 movq %r8,(%rsp) 76 movq %r8, (%rsp)
77 movq %r9,1*8(%rsp) 77 movq %r9, 1*8(%rsp)
78
79 movl %ecx,%eax
80 movl %edx,%ecx
81 78
82 xorl %r9d,%r9d 79 movl %ecx, %eax
83 movq %rcx,%r12 80 movl %edx, %ecx
84 81
85 shrq $6,%r12 82 xorl %r9d, %r9d
86 jz .Lhandle_tail /* < 64 */ 83 movq %rcx, %r12
84
85 shrq $6, %r12
86 jz .Lhandle_tail /* < 64 */
87 87
88 clc 88 clc
89 89
90 /* main loop. clear in 64 byte blocks */ 90 /* main loop. clear in 64 byte blocks */
91 /* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */ 91 /* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */
92 /* r11: temp3, rdx: temp4, r12 loopcnt */ 92 /* r11: temp3, rdx: temp4, r12 loopcnt */
@@ -94,156 +94,156 @@ ENTRY(csum_partial_copy_generic)
94 .p2align 4 94 .p2align 4
95.Lloop: 95.Lloop:
96 source 96 source
97 movq (%rdi),%rbx 97 movq (%rdi), %rbx
98 source 98 source
99 movq 8(%rdi),%r8 99 movq 8(%rdi), %r8
100 source 100 source
101 movq 16(%rdi),%r11 101 movq 16(%rdi), %r11
102 source 102 source
103 movq 24(%rdi),%rdx 103 movq 24(%rdi), %rdx
104 104
105 source 105 source
106 movq 32(%rdi),%r10 106 movq 32(%rdi), %r10
107 source 107 source
108 movq 40(%rdi),%rbp 108 movq 40(%rdi), %rbp
109 source 109 source
110 movq 48(%rdi),%r14 110 movq 48(%rdi), %r14
111 source 111 source
112 movq 56(%rdi),%r13 112 movq 56(%rdi), %r13
113 113
114 ignore 2f 114 ignore 2f
115 prefetcht0 5*64(%rdi) 115 prefetcht0 5*64(%rdi)
1162: 1162:
117 adcq %rbx,%rax 117 adcq %rbx, %rax
118 adcq %r8,%rax 118 adcq %r8, %rax
119 adcq %r11,%rax 119 adcq %r11, %rax
120 adcq %rdx,%rax 120 adcq %rdx, %rax
121 adcq %r10,%rax 121 adcq %r10, %rax
122 adcq %rbp,%rax 122 adcq %rbp, %rax
123 adcq %r14,%rax 123 adcq %r14, %rax
124 adcq %r13,%rax 124 adcq %r13, %rax
125 125
126 decl %r12d 126 decl %r12d
127 127
128 dest 128 dest
129 movq %rbx,(%rsi) 129 movq %rbx, (%rsi)
130 dest 130 dest
131 movq %r8,8(%rsi)