diff options
Diffstat (limited to 'os/ports/GCC/PPC/chcore.h')
| -rw-r--r-- | os/ports/GCC/PPC/chcore.h | 404 |
1 files changed, 0 insertions, 404 deletions
diff --git a/os/ports/GCC/PPC/chcore.h b/os/ports/GCC/PPC/chcore.h deleted file mode 100644 index b689026e5..000000000 --- a/os/ports/GCC/PPC/chcore.h +++ /dev/null @@ -1,404 +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.h
- * @brief PowerPC architecture port macros and structures.
- *
- * @addtogroup PPC_CORE
- * @{
- */
-
-#ifndef _CHCORE_H_
-#define _CHCORE_H_
-
-#if CH_DBG_ENABLE_STACK_CHECK
-#error "option CH_DBG_ENABLE_STACK_CHECK not supported by this port"
-#endif
-
-/*===========================================================================*/
-/* Port constants (common). */
-/*===========================================================================*/
-
-/* Added to make the header stand-alone when included from asm.*/
-#ifndef FALSE
-#define FALSE 0
-#endif
-#ifndef TRUE
-#define TRUE (!FALSE)
-#endif
-
-/**
- * @name Supported core variants
- * @{
- */
-#define PPC_VARIANT_e200z0 200
-#define PPC_VARIANT_e200z3 203
-#define PPC_VARIANT_e200z4 204
-/** @} */
-
-#include "vectors.h"
-#include "ppcparams.h"
-
-/*===========================================================================*/
-/* Port macros (common). */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Port configurable parameters (common). */
-/*===========================================================================*/
-
-/**
- * @brief Use VLE instruction set.
- * @note This parameter is usually set in the Makefile.
- */
-#if !defined(PPC_USE_VLE)
-#define PPC_USE_VLE TRUE
-#endif
-
-/**
- * @brief Enables the use of the @p WFI instruction.
- */
-#if !defined(PPC_ENABLE_WFI_IDLE)
-#define PPC_ENABLE_WFI_IDLE FALSE
-#endif
-
-/*===========================================================================*/
-/* Port derived parameters (common). */
-/*===========================================================================*/
-
-#if PPC_USE_VLE && !PPC_SUPPORTS_VLE
-#error "the selected MCU does not support VLE instructions set"
-#endif
-
-#if !PPC_USE_VLE && !PPC_SUPPORTS_BOOKE
-#error "the selected MCU does not support BookE instructions set"
-#endif
-
-/*===========================================================================*/
-/* Port exported info (common). */
-/*===========================================================================*/
-
-/**
- * @brief Unique macro for the implemented architecture.
- */
-#define CH_ARCHITECTURE_PPC
-
-/**
- * @brief Name of the implemented architecture.
- */
-#define CH_ARCHITECTURE_NAME "Power Architecture"
-
-/**
- * @brief Name of the architecture variant.
- */
-#if (PPC_VARIANT == PPC_VARIANT_e200z0) || defined(__DOXYGEN__)
-#define CH_CORE_VARIANT_NAME "e200z0"
-#elif PPC_VARIANT == PPC_VARIANT_e200z3
-#define CH_CORE_VARIANT_NAME "e200z3"
-#elif PPC_VARIANT == PPC_VARIANT_e200z4
-#define CH_CORE_VARIANT_NAME "e200z4"
-#else
-#error "unknown or unsupported PowerPC variant specified"
-#endif
-
-/**
- * @brief Name of the compiler supported by this port.
- */
-#define CH_COMPILER_NAME "GCC " __VERSION__
-
-/**
- * @brief Port-specific information string.
- */
-#if PPC_USE_VLE
-#define CH_PORT_INFO "VLE mode"
-#else
-#define CH_PORT_INFO "Book-E mode"
-#endif
-
-/*===========================================================================*/
-/* Port implementation part (common). */
-/*===========================================================================*/
-
-#if !defined(_FROM_ASM_)
-
-/**
- * @brief Base type for stack and memory alignment.
- */
-typedef struct {
- uint8_t a[8];
-} stkalign_t __attribute__((aligned(8)));
-
-/**
- * @brief Generic PPC register.
- */
-typedef void *regppc_t;
-
-/**
- * @brief Mandatory part of a stack frame.
- */
-struct eabi_frame {
- regppc_t slink; /**< Stack back link. */
- regppc_t shole; /**< Stack hole for LR storage. */
-};
-
-/**
- * @brief Interrupt saved context.
- * @details This structure represents the stack frame saved during a
- * preemption-capable interrupt handler.
- * @note R2 and R13 are not saved because those are assumed to be immutable
- * during the system life cycle.
- */
-struct extctx {
- struct eabi_frame frame;
- /* Start of the e_stmvsrrw frame (offset 8).*/
- regppc_t pc;
- regppc_t msr;
- /* Start of the e_stmvsprw frame (offset 16).*/
- regppc_t cr;
- regppc_t lr;
- regppc_t ctr;
- regppc_t xer;
- /* Start of the e_stmvgprw frame (offset 32).*/
- regppc_t r0;
- regppc_t r3;
- regppc_t r4;
- regppc_t r5;
- regppc_t r6;
- regppc_t r7;
- regppc_t r8;
- regppc_t r9;
- regppc_t r10;
- regppc_t r11;
- regppc_t r12;
- regppc_t padding;
- };
-
- /**
- * @brief System saved context.
- * @details This structure represents the inner stack frame during a context
- * switching.
- * @note R2 and R13 are not saved because those are assumed to be immutable
- * during the system life cycle.
- * @note LR is stored in the caller contex so it is not present in this
- * structure.
- */
-struct intctx {
- regppc_t cr; /* Part of it is not volatile... */
- regppc_t r14;
- regppc_t r15;
- regppc_t r16;
- regppc_t r17;
- regppc_t r18;
- regppc_t r19;
- regppc_t r20;
- regppc_t r21;
- regppc_t r22;
- regppc_t r23;
- regppc_t r24;
- regppc_t r25;
- regppc_t r26;
- regppc_t r27;
- regppc_t r28;
- regppc_t r29;
- regppc_t r30;
- regppc_t r31;
- regppc_t padding;
-};
-
-/**
- * @brief Platform dependent part of the @p Thread structure.
- * @details This structure usually contains just the saved stack pointer
- * defined as a pointer to a @p intctx structure.
- */
-struct context {
- struct intctx *sp;
-};
-
-/**
- * @brief Platform dependent part of the @p chThdCreateI() API.
- * @details This code usually setup the context switching frame represented
- * by an @p intctx structure.
- */
-#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
- uint8_t *sp = (uint8_t *)workspace + wsize - sizeof(struct eabi_frame); \
- ((struct eabi_frame *)sp)->slink = 0; \
- ((struct eabi_frame *)sp)->shole = _port_thread_start; \
- tp->p_ctx.sp = (struct intctx *)(sp - sizeof(struct intctx)); \
- tp->p_ctx.sp->r31 = arg; \
- tp->p_ctx.sp->r30 = pf; \
-}
-
-/**
- * @brief Stack size for the system idle thread.
- * @details This size depends on the idle thread implementation, usually
- * the idle thread should take no more space than those reserved
- * by @p PORT_INT_REQUIRED_STACK.
- */
-#ifndef PORT_IDLE_THREAD_STACK_SIZE
-#define PORT_IDLE_THREAD_STACK_SIZE 32
-#endif
-
-/**
- * @brief Per-thread stack overhead for interrupts servicing.
- * @details This constant is used in the calculation of the correct working
- * area size.
- */
-#ifndef PORT_INT_REQUIRED_STACK
-#define PORT_INT_REQUIRED_STACK 256
-#endif
-
-/**
- * @brief Enforces a correct alignment for a stack area size value.
- */
-#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
-
-/**
- * @brief Computes the thread working area global size.
- */
-#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \
- sizeof(struct intctx) + \
- sizeof(struct extctx) + \
- (n) + (PORT_INT_REQUIRED_STACK))
-
-/**
- * @brief Static working area allocation.
- * @details This macro is used to allocate a static thread working area
- * aligned as both position and size.
- */
-#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)]
-
-/**
- * @brief IRQ prologue code.
- * @details This macro must be inserted at the start of all IRQ handlers
- * enabled to invoke system APIs.
- */
-#define PORT_IRQ_PROLOGUE()
-
-/**
- * @brief IRQ epilogue code.
- * @details This macro must be inserted at the end of all IRQ handlers
- * enabled to invoke system APIs.
- */
-#define PORT_IRQ_EPILOGUE()
-
-/**
- * @brief IRQ handler function declaration.
- * @note @p id can be a function name or a vector number depending on the
- * port implementation.
- */
-#define PORT_IRQ_HANDLER(id) void id(void)
-
-/**
- * @details Implemented as global interrupt disable.
- */
-#define port_lock() asm volatile ("wrteei 0" : : : "memory")
-
-/**
- * @details Implemented as global interrupt enable.
- */
-#define port_unlock() asm volatile("wrteei 1" : : : "memory")
-
-/**
- * @details Implemented as global interrupt disable.
- */
-#define port_lock_from_isr() /*asm ("wrteei 0")*/
-
-/**
- * @details Implemented as global interrupt enable.
- */
-#define port_unlock_from_isr() /*asm ("wrteei 1")*/
-
-/**
- * @details Implemented as global interrupt disable.
- */
-#define port_disable() asm volatile ("wrteei 0" : : : "memory")
-
-/**
- * @details Same as @p port_disable() in this port, there is no difference
- * between the two states.
- */
-#define port_suspend() asm volatile ("wrteei 0" : : : "memory")
-
-/**
- * @details Implemented as global interrupt enable.
- */
-#define port_enable() asm volatile ("wrteei 1" : : : "memory")
-
-/**
- * @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.
- *
- * @param[in] ntp the thread to be switched in
- * @param[in] otp the thread to be switched out
- */
-#if !CH_DBG_ENABLE_STACK_CHECK || defined(__DOXYGEN__)
-#define port_switch(ntp, otp) _port_switch(ntp, otp)
-#else
-#define port_switch(ntp, otp) { \
- register struct intctx *sp asm ("%r1"); \
- if ((stkalign_t *)(sp - 1) < otp->p_stklimit) \
- chDbgPanic("stack overflow"); \
- _port_switch(ntp, otp); \
-}
-#endif
-
-/**
- * @brief Writes to a special register.
- *
- * @param[in] spr special register number
- * @param[in] val value to be written
- */
-#define port_mtspr(spr, val) \
- asm volatile ("mtspr %0,%1" : : "n" (spr), "r" (val))
-
-/**
- * @details This port function is implemented as inlined code for performance
- * reasons.
- */
-#if PPC_ENABLE_WFI_IDLE
-#if !defined(port_wait_for_interrupt)
-#define port_wait_for_interrupt() { \
- asm volatile ("wait" : : : "memory"); \
-}
-#endif
-#else
-#define port_wait_for_interrupt()
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void port_init(void);
- void port_halt(void);
- void _port_switch(Thread *ntp, Thread *otp);
- void _port_thread_start(void);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _FROM_ASM_ */
-
-#endif /* _CHCORE_H_ */
-
-/** @} */
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