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| Rev | Author | Line No. | Line |
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| 1217 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Martin Decky |
| 1217 | decky | 3 | * All rights reserved. |
| 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 | |||
| 1866 | jermar | 29 | /** @addtogroup libcppc32 |
| 1656 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1866 | jermar | 35 | #ifndef LIBC_ppc32_THREAD_H_ |
| 36 | #define LIBC_ppc32_THREAD_H_ |
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| 1217 | decky | 37 | |
| 1286 | decky | 38 | #define PPC_TP_OFFSET 0x7000 |
| 39 | |||
| 1217 | decky | 40 | typedef struct { |
| 41 | void *pst_data; |
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| 42 | } tcb_t; |
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| 43 | |||
| 44 | static inline void __tcb_set(tcb_t *tcb) |
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| 45 | { |
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| 1286 | decky | 46 | void *tp = tcb; |
| 47 | tp += PPC_TP_OFFSET + sizeof(tcb_t); |
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| 48 | |||
| 49 | asm volatile ( |
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| 50 | "mr %%r2, %0\n" |
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| 51 | : |
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| 52 | : "r" (tp) |
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| 53 | ); |
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| 1217 | decky | 54 | } |
| 55 | |||
| 56 | static inline tcb_t * __tcb_get(void) |
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| 57 | { |
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| 1286 | decky | 58 | void * retval; |
| 59 | |||
| 60 | asm volatile ( |
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| 61 | "mr %0, %%r2\n" |
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| 62 | : "=r" (retval) |
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| 63 | ); |
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| 64 | |||
| 65 | return (tcb_t *)(retval - PPC_TP_OFFSET - sizeof(tcb_t)); |
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| 1217 | decky | 66 | } |
| 67 | |||
| 68 | #endif |
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| 1656 | cejka | 69 | |
| 1866 | jermar | 70 | /** @} |
| 1656 | cejka | 71 | */ |