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
Родитель
0eceb82f55
Коммит
3bed8d6746
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@ -7,6 +7,8 @@
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#ifndef __ARCH_BLACKFIN_ATOMIC__
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#define __ARCH_BLACKFIN_ATOMIC__
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#include <asm/cmpxchg.h>
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#ifdef CONFIG_SMP
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#include <linux/linkage.h>
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@ -0,0 +1,48 @@
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/*
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* Copyright 2004-2009 Analog Devices Inc.
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* Tony Kou (tonyko@lineo.ca)
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*
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* Licensed under the GPL-2 or later
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*/
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#ifndef _BLACKFIN_BARRIER_H
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#define _BLACKFIN_BARRIER_H
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#include <asm/cache.h>
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#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
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/*
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* Force strict CPU ordering.
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*/
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#ifdef CONFIG_SMP
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#ifdef __ARCH_SYNC_CORE_DCACHE
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/* Force Core data cache coherence */
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# define mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
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# define rmb() do { barrier(); smp_check_barrier(); } while (0)
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# define wmb() do { barrier(); smp_mark_barrier(); } while (0)
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# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
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#else
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# define mb() barrier()
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# define rmb() barrier()
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# define wmb() barrier()
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# define read_barrier_depends() do { } while (0)
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#endif
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#else /* !CONFIG_SMP */
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#define mb() barrier()
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#define rmb() barrier()
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#define wmb() barrier()
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#define read_barrier_depends() do { } while (0)
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#endif /* !CONFIG_SMP */
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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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#define set_mb(var, value) do { var = value; mb(); } while (0)
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#define smp_read_barrier_depends() read_barrier_depends()
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#endif /* _BLACKFIN_BARRIER_H */
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@ -0,0 +1,132 @@
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/*
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* Copyright 2004-2011 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __ARCH_BLACKFIN_CMPXCHG__
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#define __ARCH_BLACKFIN_CMPXCHG__
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#ifdef CONFIG_SMP
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#include <linux/linkage.h>
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asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
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asmlinkage unsigned long __raw_xchg_2_asm(volatile void *ptr, unsigned long value);
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asmlinkage unsigned long __raw_xchg_4_asm(volatile void *ptr, unsigned long value);
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asmlinkage unsigned long __raw_cmpxchg_1_asm(volatile void *ptr,
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unsigned long new, unsigned long old);
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asmlinkage unsigned long __raw_cmpxchg_2_asm(volatile void *ptr,
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unsigned long new, unsigned long old);
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asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
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unsigned long new, unsigned long old);
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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 tmp;
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switch (size) {
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case 1:
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tmp = __raw_xchg_1_asm(ptr, x);
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break;
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case 2:
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tmp = __raw_xchg_2_asm(ptr, x);
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break;
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case 4:
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tmp = __raw_xchg_4_asm(ptr, x);
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break;
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}
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return tmp;
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}
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/*
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* Atomic compare and exchange. Compare OLD with MEM, if identical,
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* store NEW in MEM. Return the initial value in MEM. Success is
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* indicated by comparing RETURN with OLD.
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*/
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static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
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unsigned long new, int size)
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{
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unsigned long tmp;
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switch (size) {
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case 1:
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tmp = __raw_cmpxchg_1_asm(ptr, new, old);
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break;
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case 2:
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tmp = __raw_cmpxchg_2_asm(ptr, new, old);
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break;
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case 4:
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tmp = __raw_cmpxchg_4_asm(ptr, new, old);
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break;
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}
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return tmp;
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}
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#define cmpxchg(ptr, o, n) \
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((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
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(unsigned long)(n), sizeof(*(ptr))))
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#else /* !CONFIG_SMP */
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#include <mach/blackfin.h>
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#include <asm/irqflags.h>
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struct __xchg_dummy {
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unsigned long a[100];
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};
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#define __xg(x) ((volatile struct __xchg_dummy *)(x))
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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 tmp = 0;
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unsigned long flags;
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flags = hard_local_irq_save();
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switch (size) {
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case 1:
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__asm__ __volatile__
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("%0 = b%2 (z);\n\t"
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"b%2 = %1;\n\t"
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: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
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break;
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case 2:
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__asm__ __volatile__
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("%0 = w%2 (z);\n\t"
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"w%2 = %1;\n\t"
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: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
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break;
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case 4:
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__asm__ __volatile__
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("%0 = %2;\n\t"
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"%2 = %1;\n\t"
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: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
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break;
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}
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hard_local_irq_restore(flags);
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return tmp;
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}
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#include <asm-generic/cmpxchg-local.h>
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/*
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* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
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* them available.
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*/
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#define cmpxchg_local(ptr, o, n) \
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((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
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(unsigned long)(n), sizeof(*(ptr))))
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#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
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#include <asm-generic/cmpxchg.h>
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#endif /* !CONFIG_SMP */
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#define xchg(ptr, x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
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#define tas(ptr) ((void)xchg((ptr), 1))
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#endif /* __ARCH_BLACKFIN_CMPXCHG__ */
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@ -0,0 +1 @@
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/* define arch_align_stack() here */
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@ -9,6 +9,7 @@
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#include <linux/types.h>
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#include <linux/linkage.h>
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#include <mach/irq.h>
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/* init functions only */
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extern int __init init_arch_irq(void);
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@ -0,0 +1,39 @@
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/*
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* Copyright 2004-2009 Analog Devices Inc.
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* Tony Kou (tonyko@lineo.ca)
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*
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* Licensed under the GPL-2 or later
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*/
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#ifndef _BLACKFIN_SWITCH_TO_H
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#define _BLACKFIN_SWITCH_TO_H
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#define prepare_to_switch() do { } while(0)
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/*
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* switch_to(n) should switch tasks to task ptr, first checking that
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* ptr isn't the current task, in which case it does nothing.
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*/
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#include <asm/l1layout.h>
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#include <asm/mem_map.h>
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asmlinkage struct task_struct *resume(struct task_struct *prev, struct task_struct *next);
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#ifndef CONFIG_SMP
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#define switch_to(prev,next,last) \
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do { \
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memcpy (&task_thread_info(prev)->l1_task_info, L1_SCRATCH_TASK_INFO, \
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sizeof *L1_SCRATCH_TASK_INFO); \
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memcpy (L1_SCRATCH_TASK_INFO, &task_thread_info(next)->l1_task_info, \
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sizeof *L1_SCRATCH_TASK_INFO); \
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(last) = resume (prev, next); \
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} while (0)
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#else
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#define switch_to(prev, next, last) \
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do { \
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(last) = resume(prev, next); \
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} while (0)
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#endif
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#endif /* _BLACKFIN_SWITCH_TO_H */
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@ -1,192 +1,5 @@
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/*
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* Copyright 2004-2009 Analog Devices Inc.
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* Tony Kou (tonyko@lineo.ca)
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*
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* Licensed under the GPL-2 or later
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*/
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#ifndef _BLACKFIN_SYSTEM_H
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#define _BLACKFIN_SYSTEM_H
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#include <linux/linkage.h>
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#include <linux/irqflags.h>
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#include <mach/anomaly.h>
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#include <asm/cache.h>
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#include <asm/pda.h>
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#include <asm/irq.h>
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/*
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* Force strict CPU ordering.
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*/
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#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
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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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#define set_mb(var, value) do { var = value; mb(); } while (0)
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#define smp_read_barrier_depends() read_barrier_depends()
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#ifdef CONFIG_SMP
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asmlinkage unsigned long __raw_xchg_1_asm(volatile void *ptr, unsigned long value);
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asmlinkage unsigned long __raw_xchg_2_asm(volatile void *ptr, unsigned long value);
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asmlinkage unsigned long __raw_xchg_4_asm(volatile void *ptr, unsigned long value);
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asmlinkage unsigned long __raw_cmpxchg_1_asm(volatile void *ptr,
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unsigned long new, unsigned long old);
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asmlinkage unsigned long __raw_cmpxchg_2_asm(volatile void *ptr,
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unsigned long new, unsigned long old);
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asmlinkage unsigned long __raw_cmpxchg_4_asm(volatile void *ptr,
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unsigned long new, unsigned long old);
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#ifdef __ARCH_SYNC_CORE_DCACHE
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/* Force Core data cache coherence */
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# define mb() do { barrier(); smp_check_barrier(); smp_mark_barrier(); } while (0)
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# define rmb() do { barrier(); smp_check_barrier(); } while (0)
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# define wmb() do { barrier(); smp_mark_barrier(); } while (0)
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# define read_barrier_depends() do { barrier(); smp_check_barrier(); } while (0)
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#else
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# define mb() barrier()
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# define rmb() barrier()
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# define wmb() barrier()
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# define read_barrier_depends() do { } while (0)
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#endif
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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 tmp;
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switch (size) {
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case 1:
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tmp = __raw_xchg_1_asm(ptr, x);
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break;
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case 2:
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tmp = __raw_xchg_2_asm(ptr, x);
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break;
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case 4:
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tmp = __raw_xchg_4_asm(ptr, x);
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break;
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}
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return tmp;
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}
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/*
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* Atomic compare and exchange. Compare OLD with MEM, if identical,
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* store NEW in MEM. Return the initial value in MEM. Success is
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* indicated by comparing RETURN with OLD.
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*/
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static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
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unsigned long new, int size)
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{
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unsigned long tmp;
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switch (size) {
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case 1:
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tmp = __raw_cmpxchg_1_asm(ptr, new, old);
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break;
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case 2:
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tmp = __raw_cmpxchg_2_asm(ptr, new, old);
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break;
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case 4:
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tmp = __raw_cmpxchg_4_asm(ptr, new, old);
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break;
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}
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return tmp;
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}
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#define cmpxchg(ptr, o, n) \
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((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
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(unsigned long)(n), sizeof(*(ptr))))
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#else /* !CONFIG_SMP */
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#define mb() barrier()
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#define rmb() barrier()
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#define wmb() barrier()
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#define read_barrier_depends() do { } while (0)
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struct __xchg_dummy {
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unsigned long a[100];
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};
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#define __xg(x) ((volatile struct __xchg_dummy *)(x))
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#include <mach/blackfin.h>
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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 tmp = 0;
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unsigned long flags;
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flags = hard_local_irq_save();
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switch (size) {
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case 1:
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__asm__ __volatile__
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("%0 = b%2 (z);\n\t"
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"b%2 = %1;\n\t"
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: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
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break;
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case 2:
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__asm__ __volatile__
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("%0 = w%2 (z);\n\t"
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"w%2 = %1;\n\t"
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: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
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break;
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case 4:
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__asm__ __volatile__
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("%0 = %2;\n\t"
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"%2 = %1;\n\t"
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: "=&d" (tmp) : "d" (x), "m" (*__xg(ptr)) : "memory");
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break;
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}
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hard_local_irq_restore(flags);
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return tmp;
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}
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#include <asm-generic/cmpxchg-local.h>
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/*
|
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* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
|
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* them available.
|
||||
*/
|
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#define cmpxchg_local(ptr, o, n) \
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((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
|
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(unsigned long)(n), sizeof(*(ptr))))
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#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
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#include <asm-generic/cmpxchg.h>
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#endif /* !CONFIG_SMP */
|
||||
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#define xchg(ptr, x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
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#define tas(ptr) ((void)xchg((ptr), 1))
|
||||
|
||||
#define prepare_to_switch() do { } while(0)
|
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|
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/*
|
||||
* 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>
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#include <asm/mem_map.h>
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asmlinkage struct task_struct *resume(struct task_struct *prev, struct task_struct *next);
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#ifndef CONFIG_SMP
|
||||
#define switch_to(prev,next,last) \
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do { \
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memcpy (&task_thread_info(prev)->l1_task_info, L1_SCRATCH_TASK_INFO, \
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sizeof *L1_SCRATCH_TASK_INFO); \
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memcpy (L1_SCRATCH_TASK_INFO, &task_thread_info(next)->l1_task_info, \
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sizeof *L1_SCRATCH_TASK_INFO); \
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(last) = resume (prev, next); \
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} while (0)
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||||
#else
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||||
#define switch_to(prev, next, last) \
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||||
do { \
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(last) = resume(prev, next); \
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||||
} while (0)
|
||||
#endif
|
||||
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||||
#endif /* _BLACKFIN_SYSTEM_H */
|
||||
/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
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#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 @@
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#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>
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||||
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|
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|||
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@ -19,6 +19,7 @@
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#include <asm/blackfin.h>
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||||
#include <asm/fixed_code.h>
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||||
#include <asm/mem_map.h>
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#include <asm/irq.h>
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asmlinkage void ret_from_fork(void);
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|
||||
|
|
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|||
|
|
@ -20,7 +20,6 @@
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|||
|
||||
#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>
|
||||
|
|
|
|||
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Ссылка в новой задаче