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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2006 Martin Decky |
2 | * Copyright (C) 2006 Martin Decky |
| 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 | /** @addtogroup libcppc64 |
|
| - | 30 | * @{ |
|
| - | 31 | */ |
|
| - | 32 | /** @file |
|
| - | 33 | */ |
|
| - | 34 | ||
| 29 | #ifndef __LIBC__ppc64__THREAD_H__ |
35 | #ifndef __LIBC__ppc64__THREAD_H__ |
| 30 | #define __LIBC__ppc64__THREAD_H__ |
36 | #define __LIBC__ppc64__THREAD_H__ |
| 31 | 37 | ||
| 32 | #define PPC_TP_OFFSET 0x7000 |
38 | #define PPC_TP_OFFSET 0x7000 |
| 33 | 39 | ||
| 34 | typedef struct { |
40 | typedef struct { |
| 35 | void *pst_data; |
41 | void *pst_data; |
| 36 | } tcb_t; |
42 | } tcb_t; |
| 37 | 43 | ||
| 38 | static inline void __tcb_set(tcb_t *tcb) |
44 | static inline void __tcb_set(tcb_t *tcb) |
| 39 | { |
45 | { |
| 40 | void *tp = tcb; |
46 | void *tp = tcb; |
| 41 | tp += PPC_TP_OFFSET + sizeof(tcb_t); |
47 | tp += PPC_TP_OFFSET + sizeof(tcb_t); |
| 42 | 48 | ||
| 43 | asm volatile ( |
49 | asm volatile ( |
| 44 | "mr %%r2, %0\n" |
50 | "mr %%r2, %0\n" |
| 45 | : |
51 | : |
| 46 | : "r" (tp) |
52 | : "r" (tp) |
| 47 | ); |
53 | ); |
| 48 | } |
54 | } |
| 49 | 55 | ||
| 50 | static inline tcb_t * __tcb_get(void) |
56 | static inline tcb_t * __tcb_get(void) |
| 51 | { |
57 | { |
| 52 | void * retval; |
58 | void * retval; |
| 53 | 59 | ||
| 54 | asm volatile ( |
60 | asm volatile ( |
| 55 | "mr %0, %%r2\n" |
61 | "mr %0, %%r2\n" |
| 56 | : "=r" (retval) |
62 | : "=r" (retval) |
| 57 | ); |
63 | ); |
| 58 | 64 | ||
| 59 | return (tcb_t *)(retval - PPC_TP_OFFSET - sizeof(tcb_t)); |
65 | return (tcb_t *)(retval - PPC_TP_OFFSET - sizeof(tcb_t)); |
| 60 | } |
66 | } |
| 61 | 67 | ||
| 62 | #endif |
68 | #endif |
| - | 69 | ||
| - | 70 | /** @} |
|
| - | 71 | */ |
|
| - | 72 | ||
| 63 | 73 | ||