diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/include/asm/processor.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/m68k/include/asm/processor.h | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/include/asm/processor.h b/ANDROID_3.4.5/arch/m68k/include/asm/processor.h deleted file mode 100644 index 46460fa1..00000000 --- a/ANDROID_3.4.5/arch/m68k/include/asm/processor.h +++ /dev/null @@ -1,185 +0,0 @@ -/* - * include/asm-m68k/processor.h - * - * Copyright (C) 1995 Hamish Macdonald - */ - -#ifndef __ASM_M68K_PROCESSOR_H -#define __ASM_M68K_PROCESSOR_H - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ __label__ _l; _l: &&_l;}) - -#include <linux/thread_info.h> -#include <asm/segment.h> -#include <asm/fpu.h> -#include <asm/ptrace.h> - -static inline unsigned long rdusp(void) -{ -#ifdef CONFIG_COLDFIRE_SW_A7 - extern unsigned int sw_usp; - return sw_usp; -#else - register unsigned long usp __asm__("a0"); - /* move %usp,%a0 */ - __asm__ __volatile__(".word 0x4e68" : "=a" (usp)); - return usp; -#endif -} - -static inline void wrusp(unsigned long usp) -{ -#ifdef CONFIG_COLDFIRE_SW_A7 - extern unsigned int sw_usp; - sw_usp = usp; -#else - register unsigned long a0 __asm__("a0") = usp; - /* move %a0,%usp */ - __asm__ __volatile__(".word 0x4e60" : : "a" (a0) ); -#endif -} - -/* - * User space process size: 3.75GB. This is hardcoded into a few places, - * so don't change it unless you know what you are doing. - */ -#ifdef CONFIG_MMU -#if defined(CONFIG_COLDFIRE) -#define TASK_SIZE (0xC0000000UL) -#elif defined(CONFIG_SUN3) -#define TASK_SIZE (0x0E000000UL) -#else -#define TASK_SIZE (0xF0000000UL) -#endif -#else -#define TASK_SIZE (0xFFFFFFFFUL) -#endif - -#ifdef __KERNEL__ -#define STACK_TOP TASK_SIZE -#define STACK_TOP_MAX STACK_TOP -#endif - -/* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#ifdef CONFIG_MMU -#if defined(CONFIG_COLDFIRE) -#define TASK_UNMAPPED_BASE 0x60000000UL -#elif defined(CONFIG_SUN3) -#define TASK_UNMAPPED_BASE 0x0A000000UL -#else -#define TASK_UNMAPPED_BASE 0xC0000000UL -#endif -#define TASK_UNMAPPED_ALIGN(addr, off) PAGE_ALIGN(addr) -#else -#define TASK_UNMAPPED_BASE 0 -#endif - -struct thread_struct { - unsigned long ksp; /* kernel stack pointer */ - unsigned long usp; /* user stack pointer */ - unsigned short sr; /* saved status register */ - unsigned short fs; /* saved fs (sfc, dfc) */ - unsigned long crp[2]; /* cpu root pointer */ - unsigned long esp0; /* points to SR of stack frame */ - unsigned long faddr; /* info about last fault */ - int signo, code; - unsigned long fp[8*3]; - unsigned long fpcntl[3]; /* fp control regs */ - unsigned char fpstate[FPSTATESIZE]; /* floating point state */ -}; - -#define INIT_THREAD { \ - .ksp = sizeof(init_stack) + (unsigned long) init_stack, \ - .sr = PS_S, \ - .fs = __KERNEL_DS, \ -} - -#ifdef CONFIG_MMU -/* - * Do necessary setup to start up a newly executed thread. - */ -static inline void start_thread(struct pt_regs * regs, unsigned long pc, - unsigned long usp) -{ - regs->pc = pc; - regs->sr &= ~0x2000; - wrusp(usp); -} - -extern int handle_kernel_fault(struct pt_regs *regs); - -#else - -/* - * Coldfire stacks need to be re-aligned on trap exit, conventional - * 68k can handle this case cleanly. - */ -#ifdef CONFIG_COLDFIRE -#define reformat(_regs) do { (_regs)->format = 0x4; } while(0) -#else -#define reformat(_regs) do { } while (0) -#endif - -#define start_thread(_regs, _pc, _usp) \ -do { \ - (_regs)->pc = (_pc); \ - ((struct switch_stack *)(_regs))[-1].a6 = 0; \ - reformat(_regs); \ - if (current->mm) \ - (_regs)->d5 = current->mm->start_data; \ - (_regs)->sr &= ~0x2000; \ - wrusp(_usp); \ -} while(0) - -static inline int handle_kernel_fault(struct pt_regs *regs) -{ - /* Any fault in kernel is fatal on non-mmu */ - return 0; -} - -#endif - -/* Forward declaration, a strange C thing */ -struct task_struct; - -/* Free all resources held by a thread. */ -static inline void release_thread(struct task_struct *dead_task) -{ -} - -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) - -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - -/* - * Free current thread data structures etc.. - */ -static inline void exit_thread(void) -{ -} - -extern unsigned long thread_saved_pc(struct task_struct *tsk); - -unsigned long get_wchan(struct task_struct *p); - -#define KSTK_EIP(tsk) \ - ({ \ - unsigned long eip = 0; \ - if ((tsk)->thread.esp0 > PAGE_SIZE && \ - (virt_addr_valid((tsk)->thread.esp0))) \ - eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \ - eip; }) -#define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) - -#define task_pt_regs(tsk) ((struct pt_regs *) ((tsk)->thread.esp0)) - -#define cpu_relax() barrier() - -#endif |