mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
81 lines
2 KiB
C
81 lines
2 KiB
C
/*
|
|
* Copyright (C) 2006 Atmel Corporation
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#ifndef __ASM_AVR32_PROCESSOR_H
|
|
#define __ASM_AVR32_PROCESSOR_H
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define current_text_addr() ({ void *pc; __asm__("mov %0,pc" : "=r"(pc)); pc; })
|
|
|
|
struct avr32_cpuinfo {
|
|
unsigned long loops_per_jiffy;
|
|
};
|
|
|
|
extern struct avr32_cpuinfo boot_cpu_data;
|
|
|
|
#ifdef CONFIG_SMP
|
|
extern struct avr32_cpuinfo 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
|
|
|
|
/* TODO: Make configurable (2GB will serve as a reasonable default) */
|
|
#define TASK_SIZE 0x80000000
|
|
|
|
/* This decides where the kernel will search for a free chunk of vm
|
|
* space during mmap's
|
|
*/
|
|
#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
|
|
|
|
#define cpu_relax() barrier()
|
|
#define cpu_sync_pipeline() asm volatile("sub pc, -2" : : : "memory")
|
|
|
|
/* This struct contains the CPU context as stored by switch_to() */
|
|
struct thread_struct {
|
|
unsigned long pc;
|
|
unsigned long ksp; /* Kernel stack pointer */
|
|
unsigned long r7;
|
|
unsigned long r6;
|
|
unsigned long r5;
|
|
unsigned long r4;
|
|
unsigned long r3;
|
|
unsigned long r2;
|
|
unsigned long r1;
|
|
unsigned long r0;
|
|
};
|
|
|
|
#define INIT_THREAD { \
|
|
.ksp = sizeof(init_stack) + (long)&init_stack, \
|
|
}
|
|
|
|
/*
|
|
* Do necessary setup to start up a newly executed thread.
|
|
*/
|
|
#define start_thread(regs, new_pc, new_sp) \
|
|
set_fs(USER_DS); \
|
|
regs->sr = 0; /* User mode. */ \
|
|
regs->gr[REG_PC] = new_pc; \
|
|
regs->gr[REG_SP] = new_sp
|
|
|
|
struct task_struct;
|
|
|
|
/* Free all resources held by a thread */
|
|
extern void release_thread(struct task_struct *);
|
|
|
|
/* Create a kernel thread without removing it from tasklists */
|
|
extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
|
|
|
|
/* Prepare to copy thread state - unlazy all lazy status */
|
|
#define prepare_to_copy(tsk) do { } while(0)
|
|
|
|
/* Return saved PC of a blocked thread */
|
|
#define thread_saved_pc(tsk) (tsk->thread.pc)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __ASM_AVR32_PROCESSOR_H */
|