diff options
Diffstat (limited to 'os/ports/GCC/PPC/chcore.c')
| -rw-r--r-- | os/ports/GCC/PPC/chcore.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/os/ports/GCC/PPC/chcore.c b/os/ports/GCC/PPC/chcore.c deleted file mode 100644 index 4644376cf..000000000 --- a/os/ports/GCC/PPC/chcore.c +++ /dev/null @@ -1,112 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT 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 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file PPC/chcore.c
- * @brief PowerPC architecture port code.
- *
- * @addtogroup PPC_CORE
- * @{
- */
-
-#include "ch.h"
-
-/**
- * @brief Kernel port layer initialization.
- * @details IVOR4 and IVOR10 initialization.
- */
-void port_init(void) {
-#if PPC_SUPPORTS_IVORS
- /* The CPU supports IVOR registers, the kernel requires IVOR4 and IVOR10
- and the initialization is performed here.*/
- asm volatile ("li %%r3, _IVOR4@l \t\n"
- "mtIVOR4 %%r3 \t\n"
- "li %%r3, _IVOR10@l \t\n"
- "mtIVOR10 %%r3" : : : "memory");
-#endif
-}
-
-/**
- * @brief Halts the system.
- * @details This function is invoked by the operating system when an
- * unrecoverable error is detected (for example because a programming
- * error in the application code that triggers an assertion while
- * in debug mode).
- */
-void port_halt(void) {
-
- port_disable();
- while (TRUE) {
- }
-}
-
-/**
- * @brief Performs a context switch between two threads.
- * @details This is the most critical code in any port, this function
- * is responsible for the context switch between 2 threads.
- * @note The implementation of this code affects <b>directly</b> the context
- * switch performance so optimize here as much as you can.
- */
-#if !defined(__DOXYGEN__)
-__attribute__((naked))
-#endif
-void port_dummy1(void) {
-
- asm (".global _port_switch");
- asm ("_port_switch:");
- asm ("subi %sp, %sp, 80"); /* Size of the intctx structure. */
- asm ("mflr %r0");
- asm ("stw %r0, 84(%sp)"); /* LR into the caller frame. */
- asm ("mfcr %r0");
- asm ("stw %r0, 0(%sp)"); /* CR. */
- asm ("stmw %r14, 4(%sp)"); /* GPR14...GPR31. */
-
- asm ("stw %sp, 12(%r4)"); /* Store swapped-out stack. */
- asm ("lwz %sp, 12(%r3)"); /* Load swapped-in stack. */
-
- asm ("lmw %r14, 4(%sp)"); /* GPR14...GPR31. */
- asm ("lwz %r0, 0(%sp)"); /* CR. */
- asm ("mtcr %r0");
- asm ("lwz %r0, 84(%sp)"); /* LR from the caller frame. */
- asm ("mtlr %r0");
- asm ("addi %sp, %sp, 80"); /* Size of the intctx structure. */
- asm ("blr");
-}
-
-/**
- * @brief Start a thread by invoking its work function.
- * @details If the work function returns @p chThdExit() is automatically
- * invoked.
- */
-#if !defined(__DOXYGEN__)
-__attribute__((naked))
-#endif
-void port_dummy2(void) {
-
- asm (".global _port_thread_start");
- asm ("_port_thread_start:");
- chSysUnlock();
- asm ("mr %r3, %r31"); /* Thread parameter. */
- asm ("mtctr %r30");
- asm ("bctrl"); /* Invoke thread function. */
- asm ("bl chThdExit"); /* Thread termination on exit. */
-}
-
-/** @} */
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