mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 00:04:15 +08:00
Disintegrate asm/system.h for Blackfin [ver #2]
Disintegrate asm/system.h for Blackfin. Signed-off-by: David Howells <dhowells@redhat.com> cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Bob Liu <lliubbo@gmail.com>
This commit is contained in:
David Howells
Bob Liu
parent
0eceb82f55
commit
3bed8d6746
@ -7,6 +7,8 @@
|
||||
#ifndef __ARCH_BLACKFIN_ATOMIC__
|
||||
#define __ARCH_BLACKFIN_ATOMIC__
|
||||
|
||||
#include <asm/cmpxchg.h>
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
|
||||
#include <linux/linkage.h>
|
||||
|
||||
48
arch/blackfin/include/asm/barrier.h
Normal file
48
arch/blackfin/include/asm/barrier.h
Normal file
@ -0,0 +1,48 @@
|
||||
/*
|
||||
* Copyright 2004-2009 Analog Devices Inc.
|
||||
* Tony Kou (tonyko@lineo.ca)
|
||||
*
|
||||
* Licensed under the GPL-2 or later
|
||||
*/
|
||||
|
||||
#ifndef _BLACKFIN_BARRIER_H
|
||||
#define _BLACKFIN_BARRIER_H
|
||||
|
||||
#include <asm/cache.h>
|
||||
|
||||
#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
|
||||
|
||||
/*
|
||||
* Force strict CPU ordering.
|
||||
*/
|
||||
#ifdef CONFIG_SMP
|
||||
|
||||
#ifdef __ARCH_SYNC_CORE_DCACHE
|
||||
/* Force Core data cache coherence */
|
||||
# define mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
|
||||
# define rmb() do { barrier(); smp_check_barrier(); } while (0)
|
||||
# define wmb() do { barrier(); smp_mark_barrier(); } while (0)
|
||||
# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
|
||||
#else
|
||||
# define mb() barrier()
|
||||
# define rmb() barrier()
|
||||
# define wmb() barrier()
|
||||
# define read_barrier_depends() do { } while (0)
|
||||
#endif
|
||||
|
||||
#else /* !CONFIG_SMP */
|
||||
|
||||
#define mb() barrier()
|
||||
#define rmb() barrier()
|
||||
#define wmb() barrier()
|
||||
#define read_barrier_depends() do { } while (0)
|
||||
|
||||
#endif /* !CONFIG_SMP */
|
||||
|
||||
#define smp_mb() mb()
|
||||
#define smp_rmb() rmb()
|
||||
#define smp_wmb() wmb()
|
||||
#define set_mb(var, value) do { var = value; mb(); } while (0)
|
||||
#define smp_read_barrier_depends() read_barrier_depends()
|
||||
|
||||
#endif /* _BLACKFIN_BARRIER_H */
|
||||
132
arch/blackfin/include/asm/cmpxchg.h
Normal file
132
arch/blackfin/include/asm/cmpxchg.h
Normal file
@ -0,0 +1,132 @@
|
||||
/*
|
||||
* Copyright 2004-2011 Analog Devices Inc.
|
||||
*
|
||||
* Licensed under the GPL-2 or later.
|
||||
*/
|
||||
|
||||
#ifndef __ARCH_BLACKFIN_CMPXCHG__
|
||||
#define __ARCH_BLACKFIN_CMPXCHG__
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
|
||||
#include <linux/linkage.h>
|
||||
|
||||
asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
|
||||
asmlinkage unsigned long __raw_xchg_2_asm(volatile void *ptr, unsigned long value);
|
||||
asmlinkage unsigned long __raw_xchg_4_asm(volatile void *ptr, unsigned long value);
|
||||
asmlinkage unsigned long __raw_cmpxchg_1_asm(volatile void *ptr,
|
||||
unsigned long new, unsigned long old);
|
||||
asmlinkage unsigned long __raw_cmpxchg_2_asm(volatile void *ptr,
|
||||
unsigned long new, unsigned long old);
|
||||
asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
|
||||
unsigned long new, unsigned long old);
|
||||
|
||||
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
|
||||
int size)
|
||||
{
|
||||
unsigned long tmp;
|
||||
|
||||
switch (size) {
|
||||
case 1:
|
||||
tmp = __raw_xchg_1_asm(ptr, x);
|
||||
break;
|
||||
case 2:
|
||||
tmp = __raw_xchg_2_asm(ptr, x);
|
||||
break;
|
||||
case 4:
|
||||
tmp = __raw_xchg_4_asm(ptr, x);
|
||||
break;
|
||||
}
|
||||
|
||||
return tmp;
|
||||
}
|
||||
|
||||
/*
|
||||
* Atomic compare and exchange. Compare OLD with MEM, if identical,
|
||||
* store NEW in MEM. Return the initial value in MEM. Success is
|
||||
* indicated by comparing RETURN with OLD.
|
||||
*/
|
||||
static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
|
||||
unsigned long new, int size)
|
||||
{
|
||||
unsigned long tmp;
|
||||
|
||||
switch (size) {
|
||||
case 1:
|
||||
tmp = __raw_cmpxchg_1_asm(ptr, new, old);
|
||||
break;
|
||||
case 2:
|
||||
tmp = __raw_cmpxchg_2_asm(ptr, new, old);
|
||||
break;
|
||||
case 4:
|
||||
tmp = __raw_cmpxchg_4_asm(ptr, new, old);
|
||||
break;
|
||||
}
|
||||
|
||||
return tmp;
|
||||
}
|
||||
#define cmpxchg(ptr, o, n) \
|
||||
((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
|
||||
(unsigned long)(n), sizeof(*(ptr))))
|
||||
|
||||
#else /* !CONFIG_SMP */
|
||||
|
||||
#include <mach/blackfin.h>
|
||||
#include <asm/irqflags.h>
|
||||
|
||||
struct __xchg_dummy {
|
||||
unsigned long a[100];
|
||||
};
|
||||
#define __xg(x) ((volatile struct __xchg_dummy *)(x))
|
||||
|
||||
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
|
||||
int size)
|
||||
{
|
||||
unsigned long tmp = 0;
|
||||
unsigned long flags;
|
||||
|
||||
flags = hard_local_irq_save();
|
||||
|
||||
switch (size) {
|
||||
case 1:
|
||||
__asm__ __volatile__
|
||||
("%0 = b%2 (z);\n\t"
|
||||
"b%2 = %1;\n\t"
|
||||
: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
|
||||
break;
|
||||
case 2:
|
||||
__asm__ __volatile__
|
||||
("%0 = w%2 (z);\n\t"
|
||||
"w%2 = %1;\n\t"
|
||||
: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
|
||||
break;
|
||||
case 4:
|
||||
__asm__ __volatile__
|
||||
("%0 = %2;\n\t"
|
||||
"%2 = %1;\n\t"
|
||||
: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
|
||||
break;
|
||||
}
|
||||
hard_local_irq_restore(flags);
|
||||
return tmp;
|
||||
}
|
||||
|
||||
#include <asm-generic/cmpxchg-local.h>
|
||||
|
||||
/*
|
||||
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
|
||||
* them available.
|
||||
*/
|
||||
#define cmpxchg_local(ptr, o, n) \
|
||||
((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
|
||||
(unsigned long)(n), sizeof(*(ptr))))
|
||||
#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
|
||||
|
||||
#include <asm-generic/cmpxchg.h>
|
||||
|
||||
#endif /* !CONFIG_SMP */
|
||||
|
||||
#define xchg(ptr, x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
|
||||
#define tas(ptr) ((void)xchg((ptr), 1))
|
||||
|
||||
#endif /* __ARCH_BLACKFIN_CMPXCHG__ */
|
||||
1
arch/blackfin/include/asm/exec.h
Normal file
1
arch/blackfin/include/asm/exec.h
Normal file
@ -0,0 +1 @@
|
||||
/* define arch_align_stack() here */
|
||||
@ -9,6 +9,7 @@
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/linkage.h>
|
||||
#include <mach/irq.h>
|
||||
|
||||
/* init functions only */
|
||||
extern int __init init_arch_irq(void);
|
||||
|
||||
39
arch/blackfin/include/asm/switch_to.h
Normal file
39
arch/blackfin/include/asm/switch_to.h
Normal file
@ -0,0 +1,39 @@
|
||||
/*
|
||||
* Copyright 2004-2009 Analog Devices Inc.
|
||||
* Tony Kou (tonyko@lineo.ca)
|
||||
*
|
||||
* Licensed under the GPL-2 or later
|
||||
*/
|
||||
|
||||
#ifndef _BLACKFIN_SWITCH_TO_H
|
||||
#define _BLACKFIN_SWITCH_TO_H
|
||||
|
||||
#define prepare_to_switch() do { } while(0)
|
||||
|
||||
/*
|
||||
* switch_to(n) should switch tasks to task ptr, first checking that
|
||||
* ptr isn't the current task, in which case it does nothing.
|
||||
*/
|
||||
|
||||
#include <asm/l1layout.h>
|
||||
#include <asm/mem_map.h>
|
||||
|
||||
asmlinkage struct task_struct *resume(struct task_struct *prev, struct task_struct *next);
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
#define switch_to(prev,next,last) \
|
||||
do { \
|
||||
memcpy (&task_thread_info(prev)->l1_task_info, L1_SCRATCH_TASK_INFO, \
|
||||
sizeof *L1_SCRATCH_TASK_INFO); \
|
||||
memcpy (L1_SCRATCH_TASK_INFO, &task_thread_info(next)->l1_task_info, \
|
||||
sizeof *L1_SCRATCH_TASK_INFO); \
|
||||
(last) = resume (prev, next); \
|
||||
} while (0)
|
||||
#else
|
||||
#define switch_to(prev, next, last) \
|
||||
do { \
|
||||
(last) = resume(prev, next); \
|
||||
} while (0)
|
||||
#endif
|
||||
|
||||
#endif /* _BLACKFIN_SWITCH_TO_H */
|
||||
@ -1,192 +1,5 @@
|
||||
/*
|
||||
* Copyright 2004-2009 Analog Devices Inc.
|
||||
* Tony Kou (tonyko@lineo.ca)
|
||||
*
|
||||
* Licensed under the GPL-2 or later
|
||||
*/
|
||||
|
||||
#ifndef _BLACKFIN_SYSTEM_H
|
||||
#define _BLACKFIN_SYSTEM_H
|
||||
|
||||
#include <linux/linkage.h>
|
||||
#include <linux/irqflags.h>
|
||||
#include <mach/anomaly.h>
|
||||
#include <asm/cache.h>
|
||||
#include <asm/pda.h>
|
||||
#include <asm/irq.h>
|
||||
|
||||
/*
|
||||
* Force strict CPU ordering.
|
||||
*/
|
||||
#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
|
||||
#define smp_mb() mb()
|
||||
#define smp_rmb() rmb()
|
||||
#define smp_wmb() wmb()
|
||||
#define set_mb(var, value) do { var = value; mb(); } while (0)
|
||||
#define smp_read_barrier_depends() read_barrier_depends()
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
|
||||
asmlinkage unsigned long __raw_xchg_2_asm(volatile void *ptr, unsigned long value);
|
||||
asmlinkage unsigned long __raw_xchg_4_asm(volatile void *ptr, unsigned long value);
|
||||
asmlinkage unsigned long __raw_cmpxchg_1_asm(volatile void *ptr,
|
||||
unsigned long new, unsigned long old);
|
||||
asmlinkage unsigned long __raw_cmpxchg_2_asm(volatile void *ptr,
|
||||
unsigned long new, unsigned long old);
|
||||
asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
|
||||
unsigned long new, unsigned long old);
|
||||
|
||||
#ifdef __ARCH_SYNC_CORE_DCACHE
|
||||
/* Force Core data cache coherence */
|
||||
# define mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
|
||||
# define rmb() do { barrier(); smp_check_barrier(); } while (0)
|
||||
# define wmb() do { barrier(); smp_mark_barrier(); } while (0)
|
||||
# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
|
||||
#else
|
||||
# define mb() barrier()
|
||||
# define rmb() barrier()
|
||||
# define wmb() barrier()
|
||||
# define read_barrier_depends() do { } while (0)
|
||||
#endif
|
||||
|
||||
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
|
||||
int size)
|
||||
{
|
||||
unsigned long tmp;
|
||||
|
||||
switch (size) {
|
||||
case 1:
|
||||
tmp = __raw_xchg_1_asm(ptr, x);
|
||||
break;
|
||||
case 2:
|
||||
tmp = __raw_xchg_2_asm(ptr, x);
|
||||
break;
|
||||
case 4:
|
||||
tmp = __raw_xchg_4_asm(ptr, x);
|
||||
break;
|
||||
}
|
||||
|
||||
return tmp;
|
||||
}
|
||||
|
||||
/*
|
||||
* Atomic compare and exchange. Compare OLD with MEM, if identical,
|
||||
* store NEW in MEM. Return the initial value in MEM. Success is
|
||||
* indicated by comparing RETURN with OLD.
|
||||
*/
|
||||
static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
|
||||
unsigned long new, int size)
|
||||
{
|
||||
unsigned long tmp;
|
||||
|
||||
switch (size) {
|
||||
case 1:
|
||||
tmp = __raw_cmpxchg_1_asm(ptr, new, old);
|
||||
break;
|
||||
case 2:
|
||||
tmp = __raw_cmpxchg_2_asm(ptr, new, old);
|
||||
break;
|
||||
case 4:
|
||||
tmp = __raw_cmpxchg_4_asm(ptr, new, old);
|
||||
break;
|
||||
}
|
||||
|
||||
return tmp;
|
||||
}
|
||||
#define cmpxchg(ptr, o, n) \
|
||||
((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
|
||||
(unsigned long)(n), sizeof(*(ptr))))
|
||||
|
||||
#else /* !CONFIG_SMP */
|
||||
|
||||
#define mb() barrier()
|
||||
#define rmb() barrier()
|
||||
#define wmb() barrier()
|
||||
#define read_barrier_depends() do { } while (0)
|
||||
|
||||
struct __xchg_dummy {
|
||||
unsigned long a[100];
|
||||
};
|
||||
#define __xg(x) ((volatile struct __xchg_dummy *)(x))
|
||||
|
||||
#include <mach/blackfin.h>
|
||||
|
||||
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
|
||||
int size)
|
||||
{
|
||||
unsigned long tmp = 0;
|
||||
unsigned long flags;
|
||||
|
||||
flags = hard_local_irq_save();
|
||||
|
||||
switch (size) {
|
||||
case 1:
|
||||
__asm__ __volatile__
|
||||
("%0 = b%2 (z);\n\t"
|
||||
"b%2 = %1;\n\t"
|
||||
: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
|
||||
break;
|
||||
case 2:
|
||||
__asm__ __volatile__
|
||||
("%0 = w%2 (z);\n\t"
|
||||
"w%2 = %1;\n\t"
|
||||
: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
|
||||
break;
|
||||
case 4:
|
||||
__asm__ __volatile__
|
||||
("%0 = %2;\n\t"
|
||||
"%2 = %1;\n\t"
|
||||
: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
|
||||
break;
|
||||
}
|
||||
hard_local_irq_restore(flags);
|
||||
return tmp;
|
||||
}
|
||||
|
||||
#include <asm-generic/cmpxchg-local.h>
|
||||
|
||||
/*
|
||||
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
|
||||
* them available.
|
||||
*/
|
||||
#define cmpxchg_local(ptr, o, n) \
|
||||
((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
|
||||
(unsigned long)(n), sizeof(*(ptr))))
|
||||
#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
|
||||
|
||||
#include <asm-generic/cmpxchg.h>
|
||||
|
||||
#endif /* !CONFIG_SMP */
|
||||
|
||||
#define xchg(ptr, x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
|
||||
#define tas(ptr) ((void)xchg((ptr), 1))
|
||||
|
||||
#define prepare_to_switch() do { } while(0)
|
||||
|
||||
/*
|
||||
* switch_to(n) should switch tasks to task ptr, first checking that
|
||||
* ptr isn't the current task, in which case it does nothing.
|
||||
*/
|
||||
|
||||
#include <asm/l1layout.h>
|
||||
#include <asm/mem_map.h>
|
||||
|
||||
asmlinkage struct task_struct *resume(struct task_struct *prev, struct task_struct *next);
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
#define switch_to(prev,next,last) \
|
||||
do { \
|
||||
memcpy (&task_thread_info(prev)->l1_task_info, L1_SCRATCH_TASK_INFO, \
|
||||
sizeof *L1_SCRATCH_TASK_INFO); \
|
||||
memcpy (L1_SCRATCH_TASK_INFO, &task_thread_info(next)->l1_task_info, \
|
||||
sizeof *L1_SCRATCH_TASK_INFO); \
|
||||
(last) = resume (prev, next); \
|
||||
} while (0)
|
||||
#else
|
||||
#define switch_to(prev, next, last) \
|
||||
do { \
|
||||
(last) = resume(prev, next); \
|
||||
} while (0)
|
||||
#endif
|
||||
|
||||
#endif /* _BLACKFIN_SYSTEM_H */
|
||||
/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
|
||||
#include <asm/barrier.h>
|
||||
#include <asm/cmpxchg.h>
|
||||
#include <asm/exec.h>
|
||||
#include <asm/switch_to.h>
|
||||
|
||||
@ -14,6 +14,7 @@
|
||||
#include <linux/irq.h>
|
||||
#include <linux/thread_info.h>
|
||||
#include <linux/kbuild.h>
|
||||
#include <asm/pda.h>
|
||||
|
||||
int main(void)
|
||||
{
|
||||
|
||||
@ -31,7 +31,6 @@
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/unistd.h>
|
||||
#include <linux/io.h>
|
||||
#include <asm/system.h>
|
||||
#include <linux/atomic.h>
|
||||
#include <asm/irq_handler.h>
|
||||
|
||||
|
||||
@ -13,7 +13,6 @@
|
||||
|
||||
#include <asm/current.h>
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/system.h>
|
||||
|
||||
#include <asm/blackfin.h>
|
||||
|
||||
|
||||
@ -19,6 +19,7 @@
|
||||
#include <asm/blackfin.h>
|
||||
#include <asm/fixed_code.h>
|
||||
#include <asm/mem_map.h>
|
||||
#include <asm/irq.h>
|
||||
|
||||
asmlinkage void ret_from_fork(void);
|
||||
|
||||
|
||||
@ -20,7 +20,6 @@
|
||||
|
||||
#include <asm/page.h>
|
||||
#include <asm/pgtable.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/processor.h>
|
||||
#include <asm/asm-offsets.h>
|
||||
#include <asm/dma.h>
|
||||
|
||||
@ -9,7 +9,6 @@
|
||||
#include <linux/interrupt.h>
|
||||
#include <asm/bfin-global.h>
|
||||
#include <asm/reboot.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/bfrom.h>
|
||||
|
||||
/* A system soft reset makes external memory unusable so force
|
||||
|
||||
@ -30,6 +30,7 @@
|
||||
#include <asm/fixed_code.h>
|
||||
#include <asm/early_printk.h>
|
||||
#include <asm/irq_handler.h>
|
||||
#include <asm/pda.h>
|
||||
|
||||
u16 _bfin_swrst;
|
||||
EXPORT_SYMBOL(_bfin_swrst);
|
||||
|
||||
@ -21,6 +21,7 @@
|
||||
#include <asm/fixed_code.h>
|
||||
#include <asm/traps.h>
|
||||
#include <asm/irq_handler.h>
|
||||
#include <asm/pda.h>
|
||||
|
||||
void decode_address(char *buf, unsigned long address)
|
||||
{
|
||||
|
||||
@ -17,6 +17,7 @@
|
||||
#include <asm/trace.h>
|
||||
#include <asm/fixed_code.h>
|
||||
#include <asm/pseudo_instructions.h>
|
||||
#include <asm/pda.h>
|
||||
|
||||
#ifdef CONFIG_KGDB
|
||||
# include <linux/kgdb.h>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user