/**************************************************************************** * arch/sparc/src/common/sparc_internal.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __ARCH_SPARC_SRC_COMMON_UP_INTERNAL_H #define __ARCH_SPARC_SRC_COMMON_UP_INTERNAL_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifndef __ASSEMBLY__ # include # include # include # include #endif # include "sparc_v8.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* 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. */ #ifndef CONFIG_DEV_CONSOLE # 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 /* If some other device is used as the console, then the serial driver may * still be needed. Let's assume that if the upper half serial driver is * built, then the lower half will also be needed. There is no need for * the early serial initialization in this case. */ #if !defined(USE_SERIALDRIVER) && defined(CONFIG_STANDARD_SERIAL) # define USE_SERIALDRIVER 1 #endif /* Check if an interrupt stack size is configured */ #ifndef CONFIG_ARCH_INTERRUPTSTACK # define CONFIG_ARCH_INTERRUPTSTACK 0 #endif #define INTSTACK_SIZE (CONFIG_ARCH_INTERRUPTSTACK & ~STACK_ALIGN_MASK) /* sparc requires at least a 4-byte stack alignment. For floating point use, * however, the stack must be aligned to 8-byte addresses. */ #define STACK_ALIGNMENT 8 /* Stack alignment macros */ #define STACK_ALIGN_MASK (STACK_ALIGNMENT - 1) #define STACK_ALIGN_DOWN(a) ((a) & ~STACK_ALIGN_MASK) #define STACK_ALIGN_UP(a) (((a) + STACK_ALIGN_MASK) & ~STACK_ALIGN_MASK) /* 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' #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 ****************************************************************************/ #ifndef __ASSEMBLY__ typedef void (*up_vector_t)(void); #endif /**************************************************************************** * Public Data ****************************************************************************/ #ifndef __ASSEMBLY__ /* This is the beginning of heap as provided from up_head.S. This is the * first address in DRAM after the loaded program+bss+idle stack. The end * of the heap is CONFIG_RAM_END */ extern uint32_t g_idle_topstack; /* Address of the saved user stack pointer */ #if CONFIG_ARCH_INTERRUPTSTACK > 7 extern uint8_t g_intstackalloc[]; /* Allocated stack base */ extern uint8_t g_intstacktop[]; /* Initial top of interrupt stack */ #endif /* These symbols are setup by the linker script. */ extern char _text_start[]; /* Start of .text */ extern char _etext[]; /* End+1 of .text + .rodata */ extern const char _rodata_start[]; /* Start of .data in FLASH */ extern char _sdata[]; /* Start of .data */ extern char _edata[]; /* End+1 of .data */ extern char _bss_start[]; /* Start of .bss */ extern char _end[]; /* End+1 of .bss */ #ifdef CONFIG_ARCH_RAMFUNCS extern char _sramfunc[]; /* Start of ramfuncs */ extern char _eramfunc[]; /* End+1 of ramfuncs */ extern char _ramfunc_loadaddr[]; /* Start of ramfuncs in FLASH */ extern char _ramfunc_sizeof[]; /* Size of ramfuncs */ extern char _bmxdkpba_address[]; /* BMX register setting */ extern char _bmxdudba_address[]; /* BMX register setting */ extern char _bmxdupba_address[]; /* BMX register setting */ #endif /* CONFIG_ARCH_RAMFUNCS */ #endif /* __ASSEMBLY__ */ /**************************************************************************** * Inline Functions ****************************************************************************/ #ifndef __ASSEMBLY__ /* Common Functions *********************************************************/ /* Common functions define in arch/sparc/src/common. These may be replaced * with chip-specific functions of the same name if needed. See also * functions prototyped in include/nuttx/arch.h. */ /* 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); /* Context switching */ void sparc_copystate(uint32_t *dest, uint32_t *src); /* Serial output */ void sparc_lowputs(const char *str); /* Software interrupt 0 handler */ int sparc_swint0(int irq, void *context, void *arg); /* Software interrupt 1 handler */ int sparc_swint1(int irq, void *context, void *arg); /* Signals */ void sparc_sigdeliver(void); /* Interrupt handling *******************************************************/ #if CONFIG_ARCH_INTERRUPTSTACK > 7 uintptr_t sparc_intstack_alloc(void); uintptr_t sparc_intstack_top(void); #endif /* Chip-specific functions **************************************************/ /* Chip specific functions defined in arch/sparc/src/ */ /* IRQs */ bool sparc_pending_irq(int irq); void sparc_clrpend_irq(int irq); /* DMA */ #ifdef CONFIG_ARCH_DMA void weak_function sparc_dma_initialize(void); #endif /* Memory management */ #if CONFIG_MM_REGIONS > 1 void sparc_addregion(void); #else # define sparc_addregion() #endif /* Serial output */ void sparc_lowputc(char ch); void sparc_earlyserialinit(void); void sparc_serialinit(void); /* Network */ #if defined(CONFIG_NET) && !defined(CONFIG_NETDEV_LATEINIT) void sparc_netinitialize(void); #else # define sparc_netinitialize() #endif /* USB */ #ifdef CONFIG_USBDEV void sparc_usbinitialize(void); void sparc_usbuninitialize(void); #else # define sparc_usbinitialize() # define sparc_usbuninitialize() #endif /* Debug ********************************************************************/ #ifdef CONFIG_STACK_COLORATION size_t sparc_stack_check(void *stackbase, size_t nbytes); void sparc_stack_color(void *stackbase, size_t nbytes); #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_SPARC_SRC_COMMON_UP_INTERNAL_H */