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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 173 | jermar | 1 | /* |
| 191 | decky | 2 | * Copyright (C) 2005 Martin Decky |
| 173 | jermar | 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 | |||
| 29 | #ifndef __ppc_ASM_H__ |
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| 30 | #define __ppc_ASM_H__ |
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| 31 | |||
| 32 | #include <arch/types.h> |
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| 33 | #include <config.h> |
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| 34 | |||
| 191 | decky | 35 | /** Set priority level low |
| 36 | * |
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| 37 | * Enable interrupts and return previous |
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| 38 | * value of EE. |
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| 39 | */ |
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| 40 | static inline pri_t cpu_priority_low(void) { |
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| 41 | pri_t v; |
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| 42 | __asm__ volatile ( |
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| 43 | "\n" |
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| 44 | : "=r" (v) |
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| 45 | ); |
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| 46 | return v; |
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| 47 | } |
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| 48 | |||
| 49 | /** Set priority level high |
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| 50 | * |
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| 51 | * Disable interrupts and return previous |
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| 52 | * value of EE. |
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| 53 | */ |
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| 54 | static inline pri_t cpu_priority_high(void) { |
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| 55 | pri_t v; |
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| 56 | __asm__ volatile ( |
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| 57 | "\n" |
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| 58 | : "=r" (v) |
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| 59 | ); |
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| 60 | return v; |
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| 61 | } |
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| 62 | |||
| 63 | /** Restore priority level |
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| 64 | * |
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| 65 | * Restore EE. |
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| 66 | */ |
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| 67 | static inline void cpu_priority_restore(pri_t pri) { |
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| 68 | __asm__ volatile ( |
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| 69 | "\n" |
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| 70 | : : "r" (pri) |
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| 71 | ); |
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| 72 | } |
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| 73 | |||
| 173 | jermar | 74 | /* TODO: implement the real stuff */ |
| 75 | static inline __address get_stack_base(void) |
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| 76 | { |
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| 77 | return NULL; |
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| 78 | } |
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| 79 | |||
| 201 | decky | 80 | void cpu_sleep(void); |
| 81 | void asm_delay_loop(__u32 t); |
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| 82 | |||
| 173 | jermar | 83 | #endif |