diff options
Diffstat (limited to 'firmware/target/sh/thread-sh.c')
| -rw-r--r-- | firmware/target/sh/thread-sh.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/firmware/target/sh/thread-sh.c b/firmware/target/sh/thread-sh.c deleted file mode 100644 index 0f844f204b..0000000000 --- a/firmware/target/sh/thread-sh.c +++ /dev/null @@ -1,109 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Copyright (C) 2002 by Ulf Ralberg - * - * SH processor threading support - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ - -/*--------------------------------------------------------------------------- - * Start the thread running and terminate it if it returns - *--------------------------------------------------------------------------- - */ -void start_thread(void); /* Provide C access to ASM label */ -static void USED_ATTR __start_thread(void) -{ - /* r8 = context */ - asm volatile ( - "_start_thread: \n" /* Start here - no naked attribute */ - "mov.l @(4, r8), r0 \n" /* Fetch thread function pointer */ - "mov.l @(28, r8), r15 \n" /* Set initial sp */ - "mov #0, r1 \n" /* Start the thread */ - "jsr @r0 \n" - "mov.l r1, @(36, r8) \n" /* Clear start address */ - ); - thread_exit(); -} - -/* Place context pointer in r8 slot, function pointer in r9 slot, and - * start_thread pointer in context_start */ -#define THREAD_STARTUP_INIT(core, thread, function) \ - ({ (thread)->context.r[0] = (uint32_t)&(thread)->context, \ - (thread)->context.r[1] = (uint32_t)(function), \ - (thread)->context.start = (uint32_t)start_thread; }) - -/*--------------------------------------------------------------------------- - * Store non-volatile context. - *--------------------------------------------------------------------------- - */ -static inline void store_context(void* addr) -{ - asm volatile ( - "add #36, %0 \n" /* Start at last reg. By the time routine */ - "sts.l pr, @-%0 \n" /* is done, %0 will have the original value */ - "mov.l r15,@-%0 \n" - "mov.l r14,@-%0 \n" - "mov.l r13,@-%0 \n" - "mov.l r12,@-%0 \n" - "mov.l r11,@-%0 \n" - "mov.l r10,@-%0 \n" - "mov.l r9, @-%0 \n" - "mov.l r8, @-%0 \n" - : : "r" (addr) - ); -} - -/*--------------------------------------------------------------------------- - * Load non-volatile context. - *--------------------------------------------------------------------------- - */ -static inline void load_context(const void* addr) -{ - asm volatile ( - "mov.l @(36, %0), r0 \n" /* Get start address */ - "tst r0, r0 \n" - "bt .running \n" /* NULL -> already running */ - "jmp @r0 \n" /* r8 = context */ - ".running: \n" - "mov.l @%0+, r8 \n" /* Executes in delay slot and outside it */ - "mov.l @%0+, r9 \n" - "mov.l @%0+, r10 \n" - "mov.l @%0+, r11 \n" - "mov.l @%0+, r12 \n" - "mov.l @%0+, r13 \n" - "mov.l @%0+, r14 \n" - "mov.l @%0+, r15 \n" - "lds.l @%0+, pr \n" - : : "r" (addr) : "r0" /* only! */ - ); -} - -/*--------------------------------------------------------------------------- - * Put core in a power-saving state. - *--------------------------------------------------------------------------- - */ -static inline void core_sleep(void) -{ - asm volatile ( - "and.b #0x7f, @(r0, gbr) \n" /* Clear SBY (bit 7) in SBYCR */ - "mov #0, r1 \n" /* Enable interrupts */ - "ldc r1, sr \n" /* Following instruction cannot be interrupted */ - "sleep \n" /* Execute standby */ - : : "z"(&SBYCR-GBR) : "r1"); -} - |