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15#include <asm/asmmacro.h>
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25
26#define in0 r32
27#define in1 r33
28#define in2 r34
29#define in3 r35
30#define in4 r36
31#define ret0 r8
32
33GLOBAL_ENTRY(ip_fast_csum)
34 .prologue
35 .body
36 cmp.ne p6,p7=5,in1
37 and r14=3,in0
38 add r15=4,in0
39 ;;
40 cmp.ne.or.andcm p6,p7=r14,r0
41 ;;
42(p7) ld4 r20=[in0],8
43(p7) ld4 r21=[r15],8
44(p6) br.spnt .generic
45 ;;
46 ld4 r22=[in0],8
47 ld4 r23=[r15],8
48 ;;
49 ld4 r24=[in0]
50 add r20=r20,r21
51 add r22=r22,r23
52 ;;
53 add r20=r20,r22
54 ;;
55 add r20=r20,r24
56 ;;
57 shr.u ret0=r20,16
58 zxt2 r20=r20
59 ;;
60 add r20=ret0,r20
61 ;;
62 shr.u ret0=r20,16
63 zxt2 r20=r20
64 ;;
65 add r20=ret0,r20
66 ;;
67 shr.u ret0=r20,16
68 zxt2 r20=r20
69 ;;
70 add r20=ret0,r20
71 mov r9=0xffff
72 ;;
73 andcm ret0=r9,r20
74 .restore sp
75 br.ret.sptk.many b0
76 ;;
77
78.generic:
79 .prologue
80 .save ar.pfs, r35
81 alloc r35=ar.pfs,2,2,2,0
82 .save rp, r34
83 mov r34=b0
84 .body
85 dep.z out1=in1,2,30
86 mov out0=in0
87 ;;
88 br.call.sptk.many b0=do_csum
89 ;;
90 andcm ret0=-1,ret0
91 mov ar.pfs=r35
92 mov b0=r34
93 br.ret.sptk.many b0
94END(ip_fast_csum)
95
96GLOBAL_ENTRY(csum_ipv6_magic)
97 ld4 r20=[in0],4
98 ld4 r21=[in1],4
99 zxt4 in2=in2
100 ;;
101 ld4 r22=[in0],4
102 ld4 r23=[in1],4
103 dep r15=in3,in2,32,16
104 ;;
105 ld4 r24=[in0],4
106 ld4 r25=[in1],4
107 mux1 r15=r15,@rev
108 add r16=r20,r21
109 add r17=r22,r23
110 zxt4 in4=in4
111 ;;
112 ld4 r26=[in0],4
113 ld4 r27=[in1],4
114 shr.u r15=r15,16
115 add r18=r24,r25
116 add r8=r16,r17
117 ;;
118 add r19=r26,r27
119 add r8=r8,r18
120 ;;
121 add r8=r8,r19
122 add r15=r15,in4
123 ;;
124 add r8=r8,r15
125 ;;
126 shr.u r10=r8,32
127 zxt4 r11=r8
128 ;;
129 add r8=r10,r11
130 ;;
131 shr.u r10=r8,16
132 zxt2 r11=r8
133 ;;
134 add r8=r10,r11
135 ;;
136 shr.u r10=r8,16
137 zxt2 r11=r8
138 ;;
139 add r8=r10,r11
140 mov r9=0xffff
141 ;;
142 andcm r8=r9,r8
143 br.ret.sptk.many b0
144END(csum_ipv6_magic)
145