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 2012-03-12 23:36:56 +00:00 коммит произвёл Bob Liu
Родитель 0eceb82f55
Коммит 3bed8d6746
16 изменённых файлов: 233 добавлений и 196 удалений

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@ -7,6 +7,8 @@
#ifndef __ARCH_BLACKFIN_ATOMIC__
#define __ARCH_BLACKFIN_ATOMIC__
#include <asm/cmpxchg.h>
#ifdef CONFIG_SMP
#include <linux/linkage.h>

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@ -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 */

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@ -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__ */

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@ -0,0 +1 @@
/* define arch_align_stack() here */

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@ -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);

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@ -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 */

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@ -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>

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@ -14,6 +14,7 @@
#include <linux/irq.h>
#include <linux/thread_info.h>
#include <linux/kbuild.h>
#include <asm/pda.h>
int main(void)
{

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@ -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>

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@ -13,7 +13,6 @@
#include <asm/current.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/blackfin.h>

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@ -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);

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@ -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>

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@ -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

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@ -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);

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@ -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)
{

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@ -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>