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-rw-r--r--arch/arm/lib/csumpartial.S28
-rw-r--r--arch/arm/lib/csumpartialcopygeneric.S70
-rw-r--r--arch/arm/lib/delay.S4
-rw-r--r--arch/arm/lib/findbit.S18
4 files changed, 61 insertions, 59 deletions
diff --git a/arch/arm/lib/csumpartial.S b/arch/arm/lib/csumpartial.S
index fe797cf320bb..a78dae5a7b28 100644
--- a/arch/arm/lib/csumpartial.S
+++ b/arch/arm/lib/csumpartial.S
@@ -26,7 +26,7 @@ td1 .req r4 @ save before use
26td2 .req r5 @ save before use 26td2 .req r5 @ save before use
27td3 .req lr 27td3 .req lr
28 28
29.zero: mov r0, sum 29.Lzero: mov r0, sum
30 add sp, sp, #4 30 add sp, sp, #4
31 ldr pc, [sp], #4 31 ldr pc, [sp], #4
32 32
@@ -34,8 +34,8 @@ td3 .req lr
34 * Handle 0 to 7 bytes, with any alignment of source and 34 * Handle 0 to 7 bytes, with any alignment of source and
35 * destination pointers. Note that when we get here, C = 0 35 * destination pointers. Note that when we get here, C = 0
36 */ 36 */
37.less8: teq len, #0 @ check for zero count 37.Lless8: teq len, #0 @ check for zero count
38 beq .zero 38 beq .Lzero
39 39
40 /* we must have at least one byte. */ 40 /* we must have at least one byte. */
41 tst buf, #1 @ odd address? 41 tst buf, #1 @ odd address?
@@ -44,12 +44,12 @@ td3 .req lr
44 subne len, len, #1 44 subne len, len, #1
45 adcnes sum, sum, td0, put_byte_1 45 adcnes sum, sum, td0, put_byte_1
46 46
47.less4: tst len, #6 47.Lless4: tst len, #6
48 beq .less8_byte 48 beq .Lless8_byte
49 49
50 /* we are now half-word aligned */ 50 /* we are now half-word aligned */
51 51
52.less8_wordlp: 52.Lless8_wordlp:
53#if __LINUX_ARM_ARCH__ >= 4 53#if __LINUX_ARM_ARCH__ >= 4
54 ldrh td0, [buf], #2 54 ldrh td0, [buf], #2
55 sub len, len, #2 55 sub len, len, #2
@@ -65,19 +65,19 @@ td3 .req lr
65#endif 65#endif
66 adcs sum, sum, td0 66 adcs sum, sum, td0
67 tst len, #6 67 tst len, #6
68 bne .less8_wordlp 68 bne .Lless8_wordlp
69 69
70.less8_byte: tst len, #1 @ odd number of bytes 70.Lless8_byte: tst len, #1 @ odd number of bytes
71 ldrneb td0, [buf], #1 @ include last byte 71 ldrneb td0, [buf], #1 @ include last byte
72 adcnes sum, sum, td0, put_byte_0 @ update checksum 72 adcnes sum, sum, td0, put_byte_0 @ update checksum
73 73
74.done: adc r0, sum, #0 @ collect up the last carry 74.Ldone: adc r0, sum, #0 @ collect up the last carry
75 ldr td0, [sp], #4 75 ldr td0, [sp], #4
76 tst td0, #1 @ check buffer alignment 76 tst td0, #1 @ check buffer alignment
77 movne r0, r0, ror #8 @ rotate checksum by 8 bits 77 movne r0, r0, ror #8 @ rotate checksum by 8 bits
78 ldr pc, [sp], #4 @ return 78 ldr pc, [sp], #4 @ return
79 79
80.not_aligned: tst buf, #1 @ odd address 80.Lnot_aligned: tst buf, #1 @ odd address
81 ldrneb td0, [buf], #1 @ make even 81 ldrneb td0, [buf], #1 @ make even
82 subne len, len, #1 82 subne len, len, #1
83 adcnes sum, sum, td0, put_byte_1 @ update checksum 83 adcnes sum, sum, td0, put_byte_1 @ update checksum
@@ -102,14 +102,14 @@ td3 .req lr
102ENTRY(csum_partial) 102ENTRY(csum_partial)
103 stmfd sp!, {buf, lr} 103 stmfd sp!, {buf, lr}
104 cmp len, #8 @ Ensure that we have at least 104 cmp len, #8 @ Ensure that we have at least
105 blo .less8 @ 8 bytes to copy. 105 blo .Lless8 @ 8 bytes to copy.
106 106
107 tst buf, #1 107 tst buf, #1
108 movne sum, sum, ror #8 108 movne sum, sum, ror #8
109 109
110 adds sum, sum, #0 @ C = 0 110 adds sum, sum, #0 @ C = 0
111 tst buf, #3 @ Test destination alignment 111 tst buf, #3 @ Test destination alignment
112 blne .not_aligned @ aligh destination, return here 112 blne .Lnot_aligned @ align destination, return here
113 113
1141: bics ip, len, #31 1141: bics ip, len, #31
115 beq 3f 115 beq 3f
@@ -131,11 +131,11 @@ ENTRY(csum_partial)
131 ldmfd sp!, {r4 - r5} 131 ldmfd sp!, {r4 - r5}
132 132
1333: tst len, #0x1c @ should not change C 1333: tst len, #0x1c @ should not change C
134 beq .less4 134 beq .Lless4
135 135
1364: ldr td0, [buf], #4 1364: ldr td0, [buf], #4
137 sub len, len, #4 137 sub len, len, #4
138 adcs sum, sum, td0 138 adcs sum, sum, td0
139 tst len, #0x1c 139 tst len, #0x1c
140 bne 4b 140 bne 4b
141 b .less4 141 b .Lless4
diff --git a/arch/arm/lib/csumpartialcopygeneric.S b/arch/arm/lib/csumpartialcopygeneric.S
index d3a2f4667db4..4a4609c19095 100644
--- a/arch/arm/lib/csumpartialcopygeneric.S
+++ b/arch/arm/lib/csumpartialcopygeneric.S
@@ -22,7 +22,7 @@ dst .req r1
22len .req r2 22len .req r2
23sum .req r3 23sum .req r3
24 24
25.zero: mov r0, sum 25.Lzero: mov r0, sum
26 load_regs ea 26 load_regs ea
27 27
28 /* 28 /*
@@ -31,8 +31,9 @@ sum .req r3
31 * the length. Note that the source pointer hasn't been 31 * the length. Note that the source pointer hasn't been
32 * aligned yet. 32 * aligned yet.
33 */ 33 */
34.dst_unaligned: tst dst, #1 34.Ldst_unaligned:
35 beq .dst_16bit 35 tst dst, #1
36 beq .Ldst_16bit
36 37
37 load1b ip 38 load1b ip
38 sub len, len, #1 39 sub len, len, #1
@@ -41,7 +42,7 @@ sum .req r3
41 tst dst, #2 42 tst dst, #2
42 moveq pc, lr @ dst is now 32bit aligned 43 moveq pc, lr @ dst is now 32bit aligned
43 44
44.dst_16bit: load2b r8, ip 45.Ldst_16bit: load2b r8, ip
45 sub len, len, #2 46 sub len, len, #2
46 adcs sum, sum, r8, put_byte_0 47 adcs sum, sum, r8, put_byte_0
47 strb r8, [dst], #1 48 strb r8, [dst], #1
@@ -53,12 +54,12 @@ sum .req r3
53 * Handle 0 to 7 bytes, with any alignment of source and 54 * Handle 0 to 7 bytes, with any alignment of source and
54 * destination pointers. Note that when we get here, C = 0 55 * destination pointers. Note that when we get here, C = 0
55 */ 56 */
56.less8: teq len, #0 @ check for zero count 57.Lless8: teq len, #0 @ check for zero count
57 beq .zero 58 beq .Lzero
58 59
59 /* we must have at least one byte. */ 60 /* we must have at least one byte. */
60 tst dst, #1 @ dst 16-bit aligned 61 tst dst, #1 @ dst 16-bit aligned
61 beq .less8_aligned 62 beq .Lless8_aligned
62 63
63 /* Align dst */ 64 /* Align dst */
64 load1b ip 65 load1b ip
@@ -66,7 +67,7 @@ sum .req r3
66 adcs sum, sum, ip, put_byte_1 @ update checksum 67 adcs sum, sum, ip, put_byte_1 @ update checksum
67 strb ip, [dst], #1 68 strb ip, [dst], #1
68 tst len, #6 69 tst len, #6
69 beq .less8_byteonly 70 beq .Lless8_byteonly
70 71
711: load2b r8, ip 721: load2b r8, ip
72 sub len, len, #2 73 sub len, len, #2
@@ -74,15 +75,16 @@ sum .req r3
74 strb r8, [dst], #1 75 strb r8, [dst], #1
75 adcs sum, sum, ip, put_byte_1 76 adcs sum, sum, ip, put_byte_1
76 strb ip, [dst], #1 77 strb ip, [dst], #1
77.less8_aligned: tst len, #6 78.Lless8_aligned:
79 tst len, #6
78 bne 1b 80 bne 1b
79.less8_byteonly: 81.Lless8_byteonly:
80 tst len, #1 82 tst len, #1
81 beq .done 83 beq .Ldone
82 load1b r8 84 load1b r8
83 adcs sum, sum, r8, put_byte_0 @ update checksum 85 adcs sum, sum, r8, put_byte_0 @ update checksum
84 strb r8, [dst], #1 86 strb r8, [dst], #1
85 b .done 87 b .Ldone
86 88
87FN_ENTRY 89FN_ENTRY
88 mov ip, sp 90 mov ip, sp
@@ -90,11 +92,11 @@ FN_ENTRY
90 sub fp, ip, #4 92 sub fp, ip, #4
91 93
92 cmp len, #8 @ Ensure that we have at least 94 cmp len, #8 @ Ensure that we have at least
93 blo .less8 @ 8 bytes to copy. 95 blo .Lless8 @ 8 bytes to copy.
94 96
95 adds sum, sum, #0 @ C = 0 97 adds sum, sum, #0 @ C = 0
96 tst dst, #3 @ Test destination alignment 98 tst dst, #3 @ Test destination alignment
97 blne .dst_unaligned @ align destination, return here 99 blne .Ldst_unaligned @ align destination, return here
98 100
99 /* 101 /*
100 * Ok, the dst pointer is now 32bit aligned, and we know 102 * Ok, the dst pointer is now 32bit aligned, and we know
@@ -103,7 +105,7 @@ FN_ENTRY
103 */ 105 */
104 106
105 tst src, #3 @ Test source alignment 107 tst src, #3 @ Test source alignment
106 bne .src_not_aligned 108 bne .Lsrc_not_aligned
107 109
108 /* Routine for src & dst aligned */ 110 /* Routine for src & dst aligned */
109 111
@@ -136,17 +138,17 @@ FN_ENTRY
136 adcs sum, sum, r4 138 adcs sum, sum, r4
137 139
1384: ands len, len, #3 1404: ands len, len, #3
139 beq .done 141 beq .Ldone
140 load1l r4 142 load1l r4
141 tst len, #2 143 tst len, #2
142 mov r5, r4, get_byte_0 144 mov r5, r4, get_byte_0
143 beq .exit 145 beq .Lexit
144 adcs sum, sum, r4, push #16 146 adcs sum, sum, r4, push #16
145 strb r5, [dst], #1 147 strb r5, [dst], #1
146 mov r5, r4, get_byte_1 148 mov r5, r4, get_byte_1
147 strb r5, [dst], #1 149 strb r5, [dst], #1
148 mov r5, r4, get_byte_2 150 mov r5, r4, get_byte_2
149.exit: tst len, #1 151.Lexit: tst len, #1
150 strneb r5, [dst], #1 152 strneb r5, [dst], #1
151 andne r5, r5, #255 153 andne r5, r5, #255
152 adcnes sum, sum, r5, put_byte_0 154 adcnes sum, sum, r5, put_byte_0
@@ -157,20 +159,20 @@ FN_ENTRY
157 * the inefficient byte manipulations in the 159 * the inefficient byte manipulations in the
158 * architecture independent code. 160 * architecture independent code.
159 */ 161 */
160.done: adc r0, sum, #0 162.Ldone: adc r0, sum, #0
161 ldr sum, [sp, #0] @ dst 163 ldr sum, [sp, #0] @ dst
162 tst sum, #1 164 tst sum, #1
163 movne r0, r0, ror #8 165 movne r0, r0, ror #8
164 load_regs ea 166 load_regs ea
165 167
166.src_not_aligned: 168.Lsrc_not_aligned:
167 adc sum, sum, #0 @ include C from dst alignment 169 adc sum, sum, #0 @ include C from dst alignment
168 and ip, src, #3 170 and ip, src, #3
169 bic src, src, #3 171 bic src, src, #3
170 load1l r5 172 load1l r5
171 cmp ip, #2 173 cmp ip, #2
172 beq .src2_aligned 174 beq .Lsrc2_aligned
173 bhi .src3_aligned 175 bhi .Lsrc3_aligned
174 mov r4, r5, pull #8 @ C = 0 176 mov r4, r5, pull #8 @ C = 0
175 bics ip, len, #15 177 bics ip, len, #15
176 beq 2f 178 beq 2f
@@ -211,18 +213,18 @@ FN_ENTRY
211 adcs sum, sum, r4 213 adcs sum, sum, r4
212 mov r4, r5, pull #8 214 mov r4, r5, pull #8
2134: ands len, len, #3 2154: ands len, len, #3
214 beq .done 216 beq .Ldone
215 mov r5, r4, get_byte_0 217 mov r5, r4, get_byte_0
216 tst len, #2 218 tst len, #2
217 beq .exit 219 beq .Lexit
218 adcs sum, sum, r4, push #16 220 adcs sum, sum, r4, push #16
219 strb r5, [dst], #1 221 strb r5, [dst], #1
220 mov r5, r4, get_byte_1 222 mov r5, r4, get_byte_1
221 strb r5, [dst], #1 223 strb r5, [dst], #1
222 mov r5, r4, get_byte_2 224 mov r5, r4, get_byte_2
223 b .exit 225 b .Lexit
224 226
225.src2_aligned: mov r4, r5, pull #16 227.Lsrc2_aligned: mov r4, r5, pull #16
226 adds sum, sum, #0 228 adds sum, sum, #0
227 bics ip, len, #15 229 bics ip, len, #15
228 beq 2f 230 beq 2f
@@ -263,20 +265,20 @@ FN_ENTRY
263 adcs sum, sum, r4 265 adcs sum, sum, r4
264 mov r4, r5, pull #16 266 mov r4, r5, pull #16
2654: ands len, len, #3 2674: ands len, len, #3
266 beq .done 268 beq .Ldone
267 mov r5, r4, get_byte_0 269 mov r5, r4, get_byte_0
268 tst len, #2 270 tst len, #2
269 beq .exit 271 beq .Lexit
270 adcs sum, sum, r4 272 adcs sum, sum, r4
271 strb r5, [dst], #1 273 strb r5, [dst], #1
272 mov r5, r4, get_byte_1 274 mov r5, r4, get_byte_1
273 strb r5, [dst], #1 275 strb r5, [dst], #1
274 tst len, #1 276 tst len, #1
275 beq .done 277 beq .Ldone
276 load1b r5 278 load1b r5
277 b .exit 279 b .Lexit
278 280
279.src3_aligned: mov r4, r5, pull #24 281.Lsrc3_aligned: mov r4, r5, pull #24
280 adds sum, sum, #0 282 adds sum, sum, #0
281 bics ip, len, #15 283 bics ip, len, #15
282 beq 2f 284 beq 2f
@@ -317,10 +319,10 @@ FN_ENTRY
317 adcs sum, sum, r4 319 adcs sum, sum, r4
318 mov r4, r5, pull #24 320 mov r4, r5, pull #24
3194: ands len, len, #3 3214: ands len, len, #3
320 beq .done 322 beq .Ldone
321 mov r5, r4, get_byte_0 323 mov r5, r4, get_byte_0
322 tst len, #2 324 tst len, #2
323 beq .exit 325 beq .Lexit
324 strb r5, [dst], #1 326 strb r5, [dst], #1
325 adcs sum, sum, r4 327 adcs sum, sum, r4
326 load1l r4 328 load1l r4
@@ -328,4 +330,4 @@ FN_ENTRY
328 strb r5, [dst], #1 330 strb r5, [dst], #1
329 adcs sum, sum, r4, push #24 331 adcs sum, sum, r4, push #24
330 mov r5, r4, get_byte_1 332 mov r5, r4, get_byte_1
331 b .exit 333 b .Lexit
diff --git a/arch/arm/lib/delay.S b/arch/arm/lib/delay.S
index 3c7f7e675dd8..b3fb475b4120 100644
--- a/arch/arm/lib/delay.S
+++ b/arch/arm/lib/delay.S
@@ -11,7 +11,7 @@
11#include <asm/assembler.h> 11#include <asm/assembler.h>
12 .text 12 .text
13 13
14LC0: .word loops_per_jiffy 14.LC0: .word loops_per_jiffy
15 15
16/* 16/*
17 * 0 <= r0 <= 2000 17 * 0 <= r0 <= 2000
@@ -21,7 +21,7 @@ ENTRY(__udelay)
21 orr r2, r2, #0x00db 21 orr r2, r2, #0x00db
22 mul r0, r2, r0 22 mul r0, r2, r0
23ENTRY(__const_udelay) @ 0 <= r0 <= 0x01ffffff 23ENTRY(__const_udelay) @ 0 <= r0 <= 0x01ffffff
24 ldr r2, LC0 24 ldr r2, .LC0
25 ldr r2, [r2] @ max = 0x0fffffff 25 ldr r2, [r2] @ max = 0x0fffffff
26 mov r0, r0, lsr #11 @ max = 0x00003fff 26 mov r0, r0, lsr #11 @ max = 0x00003fff
27 mov r2, r2, lsr #11 @ max = 0x0003ffff 27 mov r2, r2, lsr #11 @ max = 0x0003ffff
diff --git a/arch/arm/lib/findbit.S b/arch/arm/lib/findbit.S
index f055d56ea68a..6f8e27a58c78 100644
--- a/arch/arm/lib/findbit.S
+++ b/arch/arm/lib/findbit.S
@@ -27,7 +27,7 @@ ENTRY(_find_first_zero_bit_le)
27 mov r2, #0 27 mov r2, #0
281: ldrb r3, [r0, r2, lsr #3] 281: ldrb r3, [r0, r2, lsr #3]
29 eors r3, r3, #0xff @ invert bits 29 eors r3, r3, #0xff @ invert bits
30 bne .found @ any now set - found zero bit 30 bne .L_found @ any now set - found zero bit
31 add r2, r2, #8 @ next bit pointer 31 add r2, r2, #8 @ next bit pointer
322: cmp r2, r1 @ any more? 322: cmp r2, r1 @ any more?
33 blo 1b 33 blo 1b
@@ -46,7 +46,7 @@ ENTRY(_find_next_zero_bit_le)
46 ldrb r3, [r0, r2, lsr #3] 46 ldrb r3, [r0, r2, lsr #3]
47 eor r3, r3, #0xff @ now looking for a 1 bit 47 eor r3, r3, #0xff @ now looking for a 1 bit
48 movs r3, r3, lsr ip @ shift off unused bits 48 movs r3, r3, lsr ip @ shift off unused bits
49 bne .found 49 bne .L_found
50 orr r2, r2, #7 @ if zero, then no bits here 50 orr r2, r2, #7 @ if zero, then no bits here
51 add r2, r2, #1 @ align bit pointer 51 add r2, r2, #1 @ align bit pointer
52 b 2b @ loop for next bit 52 b 2b @ loop for next bit
@@ -61,7 +61,7 @@ ENTRY(_find_first_bit_le)
61 mov r2, #0 61 mov r2, #0
621: ldrb r3, [r0, r2, lsr #3] 621: ldrb r3, [r0, r2, lsr #3]
63 movs r3, r3 63 movs r3, r3
64 bne .found @ any now set - found zero bit 64 bne .L_found @ any now set - found zero bit
65 add r2, r2, #8 @ next bit pointer 65 add r2, r2, #8 @ next bit pointer
662: cmp r2, r1 @ any more? 662: cmp r2, r1 @ any more?
67 blo 1b 67 blo 1b
@@ -79,7 +79,7 @@ ENTRY(_find_next_bit_le)
79 beq 1b @ If new byte, goto old routine 79 beq 1b @ If new byte, goto old routine
80 ldrb r3, [r0, r2, lsr #3] 80 ldrb r3, [r0, r2, lsr #3]
81 movs r3, r3, lsr ip @ shift off unused bits 81 movs r3, r3, lsr ip @ shift off unused bits
82 bne .found 82 bne .L_found
83 orr r2, r2, #7 @ if zero, then no bits here 83 orr r2, r2, #7 @ if zero, then no bits here
84 add r2, r2, #1 @ align bit pointer 84 add r2, r2, #1 @ align bit pointer
85 b 2b @ loop for next bit 85 b 2b @ loop for next bit
@@ -93,7 +93,7 @@ ENTRY(_find_first_zero_bit_be)
931: eor r3, r2, #0x18 @ big endian byte ordering 931: eor r3, r2, #0x18 @ big endian byte ordering
94 ldrb r3, [r0, r3, lsr #3] 94 ldrb r3, [r0, r3, lsr #3]
95 eors r3, r3, #0xff @ invert bits 95 eors r3, r3, #0xff @ invert bits
96 bne .found @ any now set - found zero bit 96 bne .L_found @ any now set - found zero bit
97 add r2, r2, #8 @ next bit pointer 97 add r2, r2, #8 @ next bit pointer
982: cmp r2, r1 @ any more? 982: cmp r2, r1 @ any more?
99 blo 1b 99 blo 1b
@@ -109,7 +109,7 @@ ENTRY(_find_next_zero_bit_be)
109 ldrb r3, [r0, r3, lsr #3] 109 ldrb r3, [r0, r3, lsr #3]
110 eor r3, r3, #0xff @ now looking for a 1 bit 110 eor r3, r3, #0xff @ now looking for a 1 bit
111 movs r3, r3, lsr ip @ shift off unused bits 111 movs r3, r3, lsr ip @ shift off unused bits
112 bne .found 112 bne .L_found
113 orr r2, r2, #7 @ if zero, then no bits here 113 orr r2, r2, #7 @ if zero, then no bits here
114 add r2, r2, #1 @ align bit pointer 114 add r2, r2, #1 @ align bit pointer
115 b 2b @ loop for next bit 115 b 2b @ loop for next bit
@@ -121,7 +121,7 @@ ENTRY(_find_first_bit_be)
1211: eor r3, r2, #0x18 @ big endian byte ordering 1211: eor r3, r2, #0x18 @ big endian byte ordering
122 ldrb r3, [r0, r3, lsr #3] 122 ldrb r3, [r0, r3, lsr #3]
123 movs r3, r3 123 movs r3, r3
124 bne .found @ any now set - found zero bit 124 bne .L_found @ any now set - found zero bit
125 add r2, r2, #8 @ next bit pointer 125 add r2, r2, #8 @ next bit pointer
1262: cmp r2, r1 @ any more? 1262: cmp r2, r1 @ any more?
127 blo 1b 127 blo 1b
@@ -136,7 +136,7 @@ ENTRY(_find_next_bit_be)
136 eor r3, r2, #0x18 @ big endian byte ordering 136 eor r3, r2, #0x18 @ big endian byte ordering
137 ldrb r3, [r0, r3, lsr #3] 137 ldrb r3, [r0, r3, lsr #3]
138 movs r3, r3, lsr ip @ shift off unused bits 138 movs r3, r3, lsr ip @ shift off unused bits
139 bne .found 139 bne .L_found
140 orr r2, r2, #7 @ if zero, then no bits here 140 orr r2, r2, #7 @ if zero, then no bits here
141 add r2, r2, #1 @ align bit pointer 141 add r2, r2, #1 @ align bit pointer
142 b 2b @ loop for next bit 142 b 2b @ loop for next bit
@@ -146,7 +146,7 @@ ENTRY(_find_next_bit_be)
146/* 146/*
147 * One or more bits in the LSB of r3 are assumed to be set. 147 * One or more bits in the LSB of r3 are assumed to be set.
148 */ 148 */
149.found: 149.L_found:
150#if __LINUX_ARM_ARCH__ >= 5 150#if __LINUX_ARM_ARCH__ >= 5
151 rsb r1, r3, #0 151 rsb r1, r3, #0
152 and r3, r3, r1 152 and r3, r3, r1
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-19 06:35:07 -0500