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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Jakub Jermar |
2 | * Copyright (c) 2009 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @file |
29 | /** @file |
30 | * @ingroup libsparc64 |
30 | * @ingroup libsparc64 |
31 | */ |
31 | */ |
32 | 32 | ||
33 | #ifndef LIBC_sparc64_DDI_H_ |
33 | #ifndef LIBC_sparc64_DDI_H_ |
34 | #define LIBC_sparc64_DDI_H_ |
34 | #define LIBC_sparc64_DDI_H_ |
35 | 35 | ||
36 | #include <sys/types.h> |
36 | #include <sys/types.h> |
37 | #include <libarch/types.h> |
37 | #include <libarch/types.h> |
38 | 38 | ||
39 | static inline memory_barrier(void) |
39 | static inline memory_barrier(void) |
40 | { |
40 | { |
41 | asm volatile ("membar #LoadLoad | #StoreStore\n" ::: "memory"); |
41 | asm volatile ("membar #LoadLoad | #StoreStore\n" ::: "memory"); |
- | 42 | //asm volatile ("membar #Sync\n" ::: "memory"); |
|
42 | } |
43 | } |
43 | 44 | ||
44 | static inline void pio_write_8(ioport8_t *port, uint8_t v) |
45 | static inline void pio_write_8(ioport8_t *port, uint8_t v) |
45 | { |
46 | { |
46 | *port = v; |
47 | *port = v; |
47 | memory_barrier(); |
48 | memory_barrier(); |
48 | } |
49 | } |
49 | 50 | ||
50 | static inline void pio_write_16(ioport16_t *port, uint16_t v) |
51 | static inline void pio_write_16(ioport16_t *port, uint16_t v) |
51 | { |
52 | { |
52 | *port = v; |
53 | *port = v; |
53 | memory_barrier(); |
54 | memory_barrier(); |
54 | } |
55 | } |
55 | 56 | ||
56 | static inline void pio_write_32(ioport32_t *port, uint32_t v) |
57 | static inline void pio_write_32(ioport32_t *port, uint32_t v) |
57 | { |
58 | { |
58 | *port = v; |
59 | *port = v; |
59 | memory_barrier(); |
60 | memory_barrier(); |
60 | } |
61 | } |
61 | 62 | ||
62 | static inline uint8_t pio_read_8(ioport8_t *port) |
63 | static inline uint8_t pio_read_8(ioport8_t *port) |
63 | { |
64 | { |
64 | uint8_t rv; |
65 | uint8_t rv; |
65 | 66 | ||
66 | rv = *port; |
67 | rv = *port; |
67 | memory_barrier(); |
68 | memory_barrier(); |
68 | 69 | ||
69 | return rv; |
70 | return rv; |
70 | } |
71 | } |
71 | 72 | ||
72 | static inline uint16_t pio_read_16(ioport16_t *port) |
73 | static inline uint16_t pio_read_16(ioport16_t *port) |
73 | { |
74 | { |
74 | uint16_t rv; |
75 | uint16_t rv; |
75 | 76 | ||
76 | rv = *port; |
77 | rv = *port; |
77 | memory_barrier(); |
78 | memory_barrier(); |
78 | 79 | ||
79 | return rv; |
80 | return rv; |
80 | } |
81 | } |
81 | 82 | ||
82 | static inline uint32_t pio_read_32(ioport32_t *port) |
83 | static inline uint32_t pio_read_32(ioport32_t *port) |
83 | { |
84 | { |
84 | uint32_t rv; |
85 | uint32_t rv; |
85 | 86 | ||
86 | rv = *port; |
87 | rv = *port; |
87 | memory_barrier(); |
88 | memory_barrier(); |
88 | 89 | ||
89 | return rv; |
90 | return rv; |
90 | } |
91 | } |
91 | 92 | ||
92 | #endif |
93 | #endif |
93 | 94 |