diff --git a/arch/misoc/src/lm32/lm32.h b/arch/misoc/src/lm32/lm32.h new file mode 100644 index 0000000000..8335c6917d --- /dev/null +++ b/arch/misoc/src/lm32/lm32.h @@ -0,0 +1,173 @@ +/**************************************************************************** + * arch/misoc/src/common/lm32.h + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_MISOC_SRC_COMMON_LM32_H +#define __ARCH_MISOC_SRC_COMMON_LM32_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#ifndef __ASSEMBLY__ +# include +# include +# include +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* This is the value used to mark the stack for subsequent stack monitoring + * logic. + */ + +#define STACK_COLOR 0xdeadbeef +#define INTSTACK_COLOR 0xdeadbeef +#define HEAP_COLOR 'h' + +/* In the RISC_V model, the state is copied from the stack to the TCB, but + * only a referenced is passed to get the state from the TCB. + */ + +#define up_savestate(regs) lm32_copystate(regs, (uint32_t*)g_current_regs) +#define up_restorestate(regs) (g_current_regs = regs) + +/* Determine which (if any) console driver to use. If a console is enabled + * and no other console device is specified, then a serial console is + * assumed. + */ + +#if !defined(CONFIG_DEV_CONSOLE) || CONFIG_NFILE_DESCRIPTORS <= 0 +# undef USE_SERIALDRIVER +# undef USE_EARLYSERIALINIT +# undef CONFIG_DEV_LOWCONSOLE +# undef CONFIG_RAMLOG_CONSOLE +#else +# if defined(CONFIG_RAMLOG_CONSOLE) +# undef USE_SERIALDRIVER +# undef USE_EARLYSERIALINIT +# undef CONFIG_DEV_LOWCONSOLE +# elif defined(CONFIG_DEV_LOWCONSOLE) +# undef USE_SERIALDRIVER +# undef USE_EARLYSERIALINIT +# else +# define USE_SERIALDRIVER 1 +# define USE_EARLYSERIALINIT 1 +# endif +#endif + +/* Low-level register access */ + +#define getreg8(a) (*(volatile uint8_t *)(a)) +#define putreg8(v,a) (*(volatile uint8_t *)(a) = (v)) +#define getreg16(a) (*(volatile uint16_t *)(a)) +#define putreg16(v,a) (*(volatile uint16_t *)(a) = (v)) +#define getreg32(a) (*(volatile uint32_t *)(a)) +#define putreg32(v,a) (*(volatile uint32_t *)(a) = (v)) + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +extern volatile uint32_t *g_current_regs; + +extern uint32_t g_idle_topstack; + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/* Low level initialization provided by board-level logic ******************/ + +void lm32_board_initialize(void); + +/* Memory allocation ********************************************************/ + +#if CONFIG_MM_REGIONS > 1 +void lm32_add_region(void); +#endif + +/* Context switching ********************************************************/ + +void lm32_copystate(uint32_t *dest, uint32_t *src); + +/* IRQ initialization *******************************************************/ + +void lm32_irq_initialize(void); + +/* System timer *************************************************************/ + +void lm32_timer_initialize(void); +int lm32_timerisr(int irq, void *context); + +/* Software interrupts ******************************************************/ + +uint32_t lm32_swint(int irq, FAR void *context); + +/* Signal handling **********************************************************/ + +void lm32_sigdeliver(void); + +/* Atomic modification of registers *****************************************/ + +void modifyreg8(unsigned int addr, uint8_t clearbits, uint8_t setbits); +void modifyreg16(unsigned int addr, uint16_t clearbits, uint16_t setbits); +void modifyreg32(unsigned int addr, uint32_t clearbits, uint32_t setbits); + +/* Debug ********************************************************************/ + +void lm32_dumpstate(void); + +#undef EXTERN +#ifdef __cplusplus +} +#endif +#endif /* __ASSEMBLY__ */ + +#endif /* __ARCH_MISOC_SRC_COMMON_LM32_H */ diff --git a/arch/misoc/src/lm32/lm32_allocateheap.c b/arch/misoc/src/lm32/lm32_allocateheap.c new file mode 100644 index 0000000000..4df88cecaf --- /dev/null +++ b/arch/misoc/src/lm32/lm32_allocateheap.c @@ -0,0 +1,104 @@ +/**************************************************************************** + * arch/misoc/src/common/lm32_allocateheap.c + * + * Copyright (C) 2016 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * Ramtin Amin + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include +#include + +#include "lm32.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_allocate_heap + * + * Description: + * This function will be called to dynamically set aside the heap region. + * + * For the kernel build (CONFIG_BUILD_KERNEL=y) with both kernel- and + * user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function provides the + * size of the unprotected, user-space heap. + * + * If a protected kernel-space heap is provided, the kernel heap must be + * allocated (and protected) by an analogous up_allocate_kheap(). + * + ****************************************************************************/ + +void up_allocate_heap(FAR void **heap_start, size_t *heap_size) +{ + board_autoled_on(LED_HEAPALLOCATE); + *heap_start = (FAR void *)g_idle_topstack; + *heap_size = CONFIG_RAM_END - g_idle_topstack; +} + +/**************************************************************************** + * Name: lm32_add_region + * + * Description: + * Memory may be added in non-contiguous chunks. Additional chunks are + * added by calling this function. + * + ****************************************************************************/ + +#if CONFIG_MM_REGIONS > 1 +void lm32_add_region(void) +{ +#warning Missing logic +} +#endif