Rev 4024 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4024 | jermar | 1 | /* |
| 2 | * Copyright (c) 2009 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @file |
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| 30 | * @ingroup libsparc64 |
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| 31 | */ |
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| 32 | |||
| 33 | #ifndef LIBC_sparc64_DDI_H_ |
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| 34 | #define LIBC_sparc64_DDI_H_ |
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| 35 | |||
| 36 | #include <sys/types.h> |
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| 37 | #include <libarch/types.h> |
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| 38 | |||
| 39 | static inline memory_barrier(void) |
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| 40 | { |
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| 41 | asm volatile ("membar #LoadLoad | #StoreStore\n" ::: "memory"); |
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| 42 | } |
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| 43 | |||
| 44 | static inline void pio_write_8(ioport8_t *port, uint8_t v) |
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| 45 | { |
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| 46 | *port = v; |
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| 47 | memory_barrier(); |
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| 48 | } |
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| 49 | |||
| 50 | static inline void pio_write_16(ioport16_t *port, uint16_t v) |
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| 51 | { |
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| 52 | *port = v; |
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| 53 | memory_barrier(); |
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| 54 | } |
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| 55 | |||
| 56 | static inline void pio_write_32(ioport32_t *port, uint32_t v) |
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| 57 | { |
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| 58 | *port = v; |
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| 59 | memory_barrier(); |
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| 60 | } |
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| 61 | |||
| 62 | static inline uint8_t pio_read_8(ioport8_t *port) |
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| 63 | { |
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| 64 | uint8_t rv; |
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| 65 | |||
| 66 | rv = *port; |
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| 67 | memory_barrier(); |
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| 68 | |||
| 69 | return rv; |
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| 70 | } |
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| 71 | |||
| 72 | static inline uint16_t pio_read_16(ioport16_t *port) |
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| 73 | { |
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| 74 | uint16_t rv; |
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| 75 | |||
| 76 | rv = *port; |
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| 77 | memory_barrier(); |
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| 78 | |||
| 79 | return rv; |
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| 80 | } |
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| 81 | |||
| 82 | static inline uint32_t pio_read_32(ioport32_t *port) |
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| 83 | { |
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| 84 | uint32_t rv; |
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| 85 | |||
| 86 | rv = *port; |
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| 87 | memory_barrier(); |
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| 88 | |||
| 89 | return rv; |
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| 90 | } |
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| 91 | |||
| 92 | #endif |