#ifndef _ASM_M32R_PROCESSOR_H #define _ASM_M32R_PROCESSOR_H /* * include/asm-m32r/processor.h * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1994 Linus Torvalds * Copyright (C) 2001 Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto * Copyright (C) 2004 Hirokazu Takata <takata at linux-m32r.org> */ #include <linux/kernel.h> #include <asm/cache.h> #include <asm/ptrace.h> /* pt_regs */ /* * Default implementation of macro that returns current * instruction pointer ("program counter"). */ #define current_text_addr() ({ __label__ _l; _l: &&_l; }) /* * CPU type and hardware bug flags. Kept separately for each CPU. * Members of this structure are referenced in head.S, so think twice * before touching them. [mj] */ struct cpuinfo_m32r { unsigned long pgtable_cache_sz; unsigned long cpu_clock; unsigned long bus_clock; unsigned long timer_divide; unsigned long loops_per_jiffy; }; /* * capabilities of CPUs */ extern struct cpuinfo_m32r boot_cpu_data; #ifdef CONFIG_SMP extern struct cpuinfo_m32r cpu_data[]; #define current_cpu_data cpu_data[smp_processor_id()] #else #define cpu_data (&boot_cpu_data) #define current_cpu_data boot_cpu_data #endif /* * User space process size: 2GB (default). */ #ifdef CONFIG_MMU #define TASK_SIZE (0x80000000UL) #else #define TASK_SIZE (0x00400000UL) #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. */ #define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3) typedef struct { unsigned long seg; } mm_segment_t; #define MAX_TRAPS 10 struct debug_trap { int nr_trap; unsigned long addr[MAX_TRAPS]; unsigned long insn[MAX_TRAPS]; }; struct thread_struct { unsigned long address; unsigned long trap_no; /* Trap number */ unsigned long error_code; /* Error code of trap */ unsigned long lr; /* saved pc */ unsigned long sp; /* user stack pointer */ struct debug_trap debug_trap; }; #define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack) #define INIT_THREAD { \ .sp = INIT_SP, \ } /* * Do necessary setup to start up a newly executed thread. */ /* User process Backup PSW */ #define USERPS_BPSW (M32R_PSW_BSM|M32R_PSW_BIE|M32R_PSW_BPM) #define start_thread(regs, new_pc, new_spu) \ do { \ regs->psw = (regs->psw | USERPS_BPSW) & 0x0000FFFFUL; \ regs->bpc = new_pc; \ regs->spu = new_spu; \ } while (0) /* Forward declaration, a strange C thing */ struct task_struct; struct mm_struct; /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); unsigned long get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) ((tsk)->thread.lr) #define KSTK_ESP(tsk) ((tsk)->thread.sp) #define cpu_relax() barrier() #endif /* _ASM_M32R_PROCESSOR_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hirokazu Takata | 244 | 94.57% | 3 | 60.00% |
| David Howells | 13 | 5.04% | 1 | 20.00% |
| Mathias Krause | 1 | 0.39% | 1 | 20.00% |
| Total | 258 | 100.00% | 5 | 100.00% |