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-rw-r--r--arch/avr32/kernel/avr32_ksyms.c9
-rw-r--r--arch/avr32/lib/Makefile1
-rw-r--r--arch/avr32/lib/io-readsb.S47
-rw-r--r--arch/avr32/lib/io-writesb.S52
4 files changed, 109 insertions, 0 deletions
diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c
index 04f767a272b7..372e3f8b2417 100644
--- a/arch/avr32/kernel/avr32_ksyms.c
+++ b/arch/avr32/kernel/avr32_ksyms.c
@@ -7,6 +7,7 @@
7 * it under the terms of the GNU General Public License version 2 as 7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation. 8 * published by the Free Software Foundation.
9 */ 9 */
10#include <linux/io.h>
10#include <linux/module.h> 11#include <linux/module.h>
11 12
12#include <asm/checksum.h> 13#include <asm/checksum.h>
@@ -53,3 +54,11 @@ EXPORT_SYMBOL(find_next_zero_bit);
53EXPORT_SYMBOL(find_first_bit); 54EXPORT_SYMBOL(find_first_bit);
54EXPORT_SYMBOL(find_next_bit); 55EXPORT_SYMBOL(find_next_bit);
55EXPORT_SYMBOL(generic_find_next_zero_le_bit); 56EXPORT_SYMBOL(generic_find_next_zero_le_bit);
57
58/* I/O primitives (lib/io-*.S) */
59EXPORT_SYMBOL(__raw_readsb);
60EXPORT_SYMBOL(__raw_readsw);
61EXPORT_SYMBOL(__raw_readsl);
62EXPORT_SYMBOL(__raw_writesb);
63EXPORT_SYMBOL(__raw_writesw);
64EXPORT_SYMBOL(__raw_writesl);
diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile
index 09ac43e40522..084d95bac5e7 100644
--- a/arch/avr32/lib/Makefile
+++ b/arch/avr32/lib/Makefile
@@ -7,4 +7,5 @@ lib-y += strncpy_from_user.o strnlen_user.o
7lib-y += delay.o memset.o memcpy.o findbit.o 7lib-y += delay.o memset.o memcpy.o findbit.o
8lib-y += csum_partial.o csum_partial_copy_generic.o 8lib-y += csum_partial.o csum_partial_copy_generic.o
9lib-y += io-readsw.o io-readsl.o io-writesw.o io-writesl.o 9lib-y += io-readsw.o io-readsl.o io-writesw.o io-writesl.o
10lib-y += io-readsb.o io-writesb.o
10lib-y += __avr32_lsl64.o __avr32_lsr64.o __avr32_asr64.o 11lib-y += __avr32_lsl64.o __avr32_lsr64.o __avr32_asr64.o
diff --git a/arch/avr32/lib/io-readsb.S b/arch/avr32/lib/io-readsb.S
new file mode 100644
index 000000000000..b319d5e71749
--- /dev/null
+++ b/arch/avr32/lib/io-readsb.S
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 .text
10.Lnot_word_aligned:
111: ld.ub r8, r12[0]
12 sub r10, 1
13 st.b r11++, r8
14 reteq r12
15 tst r11, r9
16 brne 1b
17
18 /* fall through */
19
20 .global __raw_readsb
21 .type __raw_readsb,@function
22__raw_readsb:
23 cp.w r10, 0
24 mov r9, 3
25 reteq r12
26
27 tst r11, r9
28 brne .Lnot_word_aligned
29
30 sub r10, 4
31 brlt 2f
32
331: ldins.b r8:t, r12[0]
34 ldins.b r8:u, r12[0]
35 ldins.b r8:l, r12[0]
36 ldins.b r8:b, r12[0]
37 st.w r11++, r8
38 sub r10, 4
39 brge 1b
40
412: sub r10, -4
42 reteq r12
43
443: ld.uh r8, r12[0]
45 sub r10, 1
46 st.b r11++, r8
47 brne 3b
diff --git a/arch/avr32/lib/io-writesb.S b/arch/avr32/lib/io-writesb.S
new file mode 100644
index 000000000000..b4ebaacccf68
--- /dev/null
+++ b/arch/avr32/lib/io-writesb.S
@@ -0,0 +1,52 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 .text
10.Lnot_word_aligned:
111: ld.ub r8, r11++
12 sub r10, 1
13 st.b r12[0], r8
14 reteq r12
15 tst r11, r9
16 brne 1b
17
18 /* fall through */
19
20 .global __raw_writesb
21 .type __raw_writesb,@function
22__raw_writesb:
23 cp.w r10, 0
24 mov r9, 3
25 reteq r12
26
27 tst r11, r9
28 brne .Lnot_word_aligned
29
30 sub r10, 4
31 brlt 2f
32
331: ld.w r8, r11++
34 bfextu r9, r8, 24, 8
35 st.b r12[0], r9
36 bfextu r9, r8, 16, 8
37 st.b r12[0], r9
38 bfextu r9, r8, 8, 8
39 st.b r12[0], r9
40 st.b r12[0], r8
41 sub r10, 4
42 brge 1b
43
442: sub r10, -4
45 reteq r12
46
473: ld.ub r8, r11++
48 sub r10, 1
49 st.b r12[0], r8
50 brne 3b
51
52 retal r12