0a58458341
All the simple microblaze header files were adapted to use their asm-generic implementations. These files are more simple and were quite straightforward to change. fb.h, vga.h and parport.h previously did not exist, using the generic version makes it possible to build more drivers successfully in allyesonfig. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/*
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* Copyright (C) 2006 Atmark Techno, Inc.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef _ASM_MICROBLAZE_SYSTEM_H
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#define _ASM_MICROBLAZE_SYSTEM_H
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#include <asm/registers.h>
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#include <asm/setup.h>
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#include <asm/irqflags.h>
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#include <asm-generic/cmpxchg.h>
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#include <asm-generic/cmpxchg-local.h>
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struct task_struct;
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struct thread_info;
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extern struct task_struct *_switch_to(struct thread_info *prev,
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struct thread_info *next);
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#define switch_to(prev, next, last) \
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do { \
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(last) = _switch_to(task_thread_info(prev), \
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task_thread_info(next)); \
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} while (0)
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#define smp_read_barrier_depends() do {} while (0)
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#define read_barrier_depends() do {} while (0)
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#define nop() asm volatile ("nop")
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#define mb() barrier()
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#define rmb() mb()
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#define wmb() mb()
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#define set_mb(var, value) do { var = value; mb(); } while (0)
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#define set_wmb(var, value) do { var = value; wmb(); } while (0)
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#define smp_mb() mb()
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#define smp_rmb() rmb()
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#define smp_wmb() wmb()
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void show_trace(struct task_struct *task, unsigned long *stack);
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void __bad_xchg(volatile void *ptr, int size);
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static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
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int size)
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{
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unsigned long ret;
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unsigned long flags;
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switch (size) {
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case 1:
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local_irq_save(flags);
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ret = *(volatile unsigned char *)ptr;
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*(volatile unsigned char *)ptr = x;
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local_irq_restore(flags);
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break;
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case 4:
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local_irq_save(flags);
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ret = *(volatile unsigned long *)ptr;
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*(volatile unsigned long *)ptr = x;
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local_irq_restore(flags);
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break;
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default:
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__bad_xchg(ptr, size), ret = 0;
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break;
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}
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return ret;
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}
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void disable_hlt(void);
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void enable_hlt(void);
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void default_idle(void);
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#define xchg(ptr, x) \
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((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
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void free_init_pages(char *what, unsigned long begin, unsigned long end);
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void free_initmem(void);
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extern char *klimit;
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extern void ret_from_fork(void);
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#ifdef CONFIG_DEBUG_FS
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extern struct dentry *of_debugfs_root;
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#endif
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#define arch_align_stack(x) (x)
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#endif /* _ASM_MICROBLAZE_SYSTEM_H */
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