/* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. * * 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. */ #ifndef _ASM_MICROBLAZE_PROCESSOR_H #define _ASM_MICROBLAZE_PROCESSOR_H #include <asm/ptrace.h> #include <asm/setup.h> #include <asm/registers.h> #include <asm/entry.h> #include <asm/current.h> # ifndef __ASSEMBLY__ /* from kernel/cpu/mb.c */ extern const struct seq_operations cpuinfo_op; # define cpu_relax() barrier() #define task_pt_regs(tsk) \ (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1) /* Do necessary setup to start up a newly executed thread. */ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp); extern void ret_from_fork(void); extern void ret_from_kernel_thread(void); # endif /* __ASSEMBLY__ */ # ifndef CONFIG_MMU /* * User space process size: memory size * * TASK_SIZE on MMU cpu is usually 1GB. However, on no-MMU arch, both * user processes and the kernel is on the same memory region. They * both share the memory space and that is limited by the amount of * physical memory. thus, we set TASK_SIZE == amount of total memory. */ # define TASK_SIZE (0x81000000 - 0x80000000) /* * Default implementation of macro that returns current * instruction pointer ("program counter"). */ # define current_text_addr() ({ __label__ _l; _l: &&_l; }) /* * This decides where the kernel will search for a free chunk of vm * space during mmap's. We won't be using it */ # define TASK_UNMAPPED_BASE 0 /* definition in include/linux/sched.h */ struct task_struct; /* thread_struct is gone. use thread_info instead. */ struct thread_struct { }; # define INIT_THREAD { } /* Free all resources held by a thread. */ static inline void release_thread(struct task_struct *dead_task) { } extern unsigned long get_wchan(struct task_struct *p); # define KSTK_EIP(tsk) (0) # define KSTK_ESP(tsk) (0) # else /* CONFIG_MMU */ /* * This is used to define STACK_TOP, and with MMU it must be below * kernel base to select the correct PGD when handling MMU exceptions. */ # define TASK_SIZE (CONFIG_KERNEL_START) /* * This decides where the kernel will search for a free chunk of vm * space during mmap's. */ # define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3) # define THREAD_KSP 0 # ifndef __ASSEMBLY__ /* * Default implementation of macro that returns current * instruction pointer ("program counter"). */ # define current_text_addr() ({ __label__ _l; _l: &&_l; }) /* If you change this, you must change the associated assembly-languages * constants defined below, THREAD_*. */ struct thread_struct { /* kernel stack pointer (must be first field in structure) */ unsigned long ksp; unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */ void *pgdir; /* root of page-table tree */ struct pt_regs *regs; /* Pointer to saved register state */ }; # define INIT_THREAD { \ .ksp = sizeof init_stack + (unsigned long)init_stack, \ .pgdir = swapper_pg_dir, \ } /* Free all resources held by a thread. */ static inline void release_thread(struct task_struct *dead_task) { } unsigned long get_wchan(struct task_struct *p); /* The size allocated for kernel stacks. This _must_ be a power of two! */ # define KERNEL_STACK_SIZE 0x2000 /* Return some info about the user process TASK. */ # define task_tos(task) ((unsigned long)(task) + KERNEL_STACK_SIZE) # define task_regs(task) ((struct pt_regs *)task_tos(task) - 1) # define task_pt_regs_plus_args(tsk) \ ((void *)task_pt_regs(tsk)) # define task_sp(task) (task_regs(task)->r1) # define task_pc(task) (task_regs(task)->pc) /* Grotty old names for some. */ # define KSTK_EIP(task) (task_pc(task)) # define KSTK_ESP(task) (task_sp(task)) /* FIXME */ # define deactivate_mm(tsk, mm) do { } while (0) # define STACK_TOP TASK_SIZE # define STACK_TOP_MAX STACK_TOP #ifdef CONFIG_DEBUG_FS extern struct dentry *of_debugfs_root; #endif # endif /* __ASSEMBLY__ */ # endif /* CONFIG_MMU */ #endif /* _ASM_MICROBLAZE_PROCESSOR_H */
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Kbuild | File | 742 B | 0644 |
|
asm-compat.h | File | 518 B | 0644 |
|
asm-offsets.h | File | 35 B | 0644 |
|
atomic.h | File | 626 B | 0644 |
|
cache.h | File | 644 B | 0644 |
|
cacheflush.h | File | 4.12 KB | 0644 |
|
checksum.h | File | 942 B | 0644 |
|
cmpxchg.h | File | 919 B | 0644 |
|
cpuinfo.h | File | 2.13 KB | 0644 |
|
cputable.h | File | 1 B | 0644 |
|
current.h | File | 850 B | 0644 |
|
delay.h | File | 2.26 KB | 0644 |
|
dma-mapping.h | File | 765 B | 0644 |
|
dma.h | File | 706 B | 0644 |
|
elf.h | File | 738 B | 0644 |
|
entry.h | File | 1.13 KB | 0644 |
|
exceptions.h | File | 2.08 KB | 0644 |
|
fixmap.h | File | 1.96 KB | 0644 |
|
flat.h | File | 2.26 KB | 0644 |
|
ftrace.h | File | 641 B | 0644 |
|
futex.h | File | 2.13 KB | 0644 |
|
hash.h | File | 2.37 KB | 0644 |
|
highmem.h | File | 2.2 KB | 0644 |
|
hw_irq.h | File | 1 B | 0644 |
|
io.h | File | 2.05 KB | 0644 |
|
irq.h | File | 538 B | 0644 |
|
irqflags.h | File | 2.6 KB | 0644 |
|
kgdb.h | File | 739 B | 0644 |
|
mmu.h | File | 4.19 KB | 0644 |
|
mmu_context.h | File | 141 B | 0644 |
|
mmu_context_mm.h | File | 3.91 KB | 0644 |
|
module.h | File | 840 B | 0644 |
|
page.h | File | 6.11 KB | 0644 |
|
pci-bridge.h | File | 4.57 KB | 0644 |
|
pci.h | File | 2.47 KB | 0644 |
|
pgalloc.h | File | 4.74 KB | 0644 |
|
pgtable.h | File | 17.66 KB | 0644 |
|
processor.h | File | 4.11 KB | 0644 |
|
prom.h | File | 713 B | 0644 |
|
ptrace.h | File | 727 B | 0644 |
|
pvr.h | File | 8.72 KB | 0644 |
|
registers.h | File | 1.65 KB | 0644 |
|
seccomp.h | File | 256 B | 0644 |
|
sections.h | File | 637 B | 0644 |
|
setup.h | File | 1.37 KB | 0644 |
|
string.h | File | 630 B | 0644 |
|
switch_to.h | File | 629 B | 0644 |
|
syscall.h | File | 2.26 KB | 0644 |
|
thread_info.h | File | 4.01 KB | 0644 |
|
timex.h | File | 402 B | 0644 |
|
tlb.h | File | 714 B | 0644 |
|
tlbflush.h | File | 2.04 KB | 0644 |
|
uaccess.h | File | 9.98 KB | 0644 |
|
unaligned.h | File | 871 B | 0644 |
|
unistd.h | File | 1.19 KB | 0644 |
|
unwind.h | File | 719 B | 0644 |
|
user.h | File | 1 B | 0644 |
|