diff options
Diffstat (limited to 'firmware/asm/sh/thread.c')
| -rw-r--r-- | firmware/asm/sh/thread.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/firmware/asm/sh/thread.c b/firmware/asm/sh/thread.c deleted file mode 100644 index e63470c4a1..0000000000 --- a/firmware/asm/sh/thread.c +++ /dev/null | |||
| @@ -1,96 +0,0 @@ | |||
| 1 | /*************************************************************************** | ||
| 2 | * __________ __ ___. | ||
| 3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
| 4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
| 5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
| 6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
| 7 | * \/ \/ \/ \/ \/ | ||
| 8 | * $Id$ | ||
| 9 | * | ||
| 10 | * Copyright (C) 2002 by Ulf Ralberg | ||
| 11 | * | ||
| 12 | * SH processor threading support | ||
| 13 | * | ||
| 14 | * This program is free software; you can redistribute it and/or | ||
| 15 | * modify it under the terms of the GNU General Public License | ||
| 16 | * as published by the Free Software Foundation; either version 2 | ||
| 17 | * of the License, or (at your option) any later version. | ||
| 18 | * | ||
| 19 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
| 20 | * KIND, either express or implied. | ||
| 21 | * | ||
| 22 | ****************************************************************************/ | ||
| 23 | |||
| 24 | /*--------------------------------------------------------------------------- | ||
| 25 | * Start the thread running and terminate it if it returns | ||
| 26 | *--------------------------------------------------------------------------- | ||
| 27 | */ | ||
| 28 | void start_thread(void); /* Provide C access to ASM label */ | ||
| 29 | static void USED_ATTR __start_thread(void) | ||
| 30 | { | ||
| 31 | /* r8 = context */ | ||
| 32 | asm volatile ( | ||
| 33 | "_start_thread: \n" /* Start here - no naked attribute */ | ||
| 34 | "mov.l @(4, r8), r0 \n" /* Fetch thread function pointer */ | ||
| 35 | "mov.l @(28, r8), r15 \n" /* Set initial sp */ | ||
| 36 | "mov #0, r1 \n" /* Start the thread */ | ||
| 37 | "jsr @r0 \n" | ||
| 38 | "mov.l r1, @(36, r8) \n" /* Clear start address */ | ||
| 39 | ); | ||
| 40 | thread_exit(); | ||
| 41 | } | ||
| 42 | |||
| 43 | /* Place context pointer in r8 slot, function pointer in r9 slot, and | ||
| 44 | * start_thread pointer in context_start */ | ||
| 45 | #define THREAD_STARTUP_INIT(core, thread, function) \ | ||
| 46 | ({ (thread)->context.r[0] = (uint32_t)&(thread)->context, \ | ||
| 47 | (thread)->context.r[1] = (uint32_t)(function), \ | ||
| 48 | (thread)->context.start = (uint32_t)start_thread; }) | ||
| 49 | |||
| 50 | /*--------------------------------------------------------------------------- | ||
| 51 | * Store non-volatile context. | ||
| 52 | *--------------------------------------------------------------------------- | ||
| 53 | */ | ||
| 54 | static inline void store_context(void* addr) | ||
| 55 | { | ||
| 56 | asm volatile ( | ||
| 57 | "add #36, %0 \n" /* Start at last reg. By the time routine */ | ||
| 58 | "sts.l pr, @-%0 \n" /* is done, %0 will have the original value */ | ||
| 59 | "mov.l r15,@-%0 \n" | ||
| 60 | "mov.l r14,@-%0 \n" | ||
| 61 | "mov.l r13,@-%0 \n" | ||
| 62 | "mov.l r12,@-%0 \n" | ||
| 63 | "mov.l r11,@-%0 \n" | ||
| 64 | "mov.l r10,@-%0 \n" | ||
| 65 | "mov.l r9, @-%0 \n" | ||
| 66 | "mov.l r8, @-%0 \n" | ||
| 67 | : : "r" (addr) | ||
| 68 | ); | ||
| 69 | } | ||
| 70 | |||
| 71 | /*--------------------------------------------------------------------------- | ||
| 72 | * Load non-volatile context. | ||
| 73 | *--------------------------------------------------------------------------- | ||
| 74 | */ | ||
| 75 | static inline void load_context(const void* addr) | ||
| 76 | { | ||
| 77 | asm volatile ( | ||
| 78 | "mov.l @(36, %0), r0 \n" /* Get start address */ | ||
| 79 | "tst r0, r0 \n" | ||
| 80 | "bt .running \n" /* NULL -> already running */ | ||
| 81 | "jmp @r0 \n" /* r8 = context */ | ||
| 82 | ".running: \n" | ||
| 83 | "mov.l @%0+, r8 \n" /* Executes in delay slot and outside it */ | ||
| 84 | "mov.l @%0+, r9 \n" | ||
| 85 | "mov.l @%0+, r10 \n" | ||
| 86 | "mov.l @%0+, r11 \n" | ||
| 87 | "mov.l @%0+, r12 \n" | ||
| 88 | "mov.l @%0+, r13 \n" | ||
| 89 | "mov.l @%0+, r14 \n" | ||
| 90 | "mov.l @%0+, r15 \n" | ||
| 91 | "lds.l @%0+, pr \n" | ||
| 92 | : : "r" (addr) : "r0" /* only! */ | ||
| 93 | ); | ||
| 94 | } | ||
| 95 | |||
| 96 | |||