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>

diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index 54c6e28..c8db653 100644 (file)
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -7,6 +7,8 @@
 #ifndef __ARCH_BLACKFIN_ATOMIC__
 #define __ARCH_BLACKFIN_ATOMIC__
 
+#include <asm/cmpxchg.h>
+
 #ifdef CONFIG_SMP
 
 #include <linux/linkage.h>

diff --git a/arch/blackfin/include/asm/barrier.h b/arch/blackfin/include/asm/barrier.h
new file mode 100644 (file)
index 0000000..ebb1895
--- /dev/null
+++ b/arch/blackfin/include/asm/barrier.h
@@ -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 */

diff --git a/arch/blackfin/include/asm/cmpxchg.h b/arch/blackfin/include/asm/cmpxchg.h
new file mode 100644 (file)
index 0000000..ba2484f
--- /dev/null
+++ b/arch/blackfin/include/asm/cmpxchg.h
@@ -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__ */

diff --git a/arch/blackfin/include/asm/exec.h b/arch/blackfin/include/asm/exec.h
new file mode 100644 (file)
index 0000000..54c2e1d
--- /dev/null
+++ b/arch/blackfin/include/asm/exec.h
@@ -0,0 +1 @@
+/* define arch_align_stack() here */

diff --git a/arch/blackfin/include/asm/irq_handler.h b/arch/blackfin/include/asm/irq_handler.h
index ee73f79..4fbf835 100644 (file)
--- a/arch/blackfin/include/asm/irq_handler.h
+++ b/arch/blackfin/include/asm/irq_handler.h
@@ -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);

diff --git a/arch/blackfin/include/asm/switch_to.h b/arch/blackfin/include/asm/switch_to.h
new file mode 100644 (file)
index 0000000..aaf671b
--- /dev/null
+++ b/arch/blackfin/include/asm/switch_to.h
@@ -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 */

diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index 44bd0cc..a7f4057 100644 (file)
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.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>

diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c
index 17e3546..37fcae9 100644 (file)
--- a/arch/blackfin/kernel/asm-offsets.c
+++ b/arch/blackfin/kernel/asm-offsets.c
@@ -14,6 +14,7 @@
 #include <linux/irq.h>
 #include <linux/thread_info.h>
 #include <linux/kbuild.h>
+#include <asm/pda.h>
 
 int main(void)
 {

diff --git a/arch/blackfin/kernel/ipipe.c b/arch/blackfin/kernel/ipipe.c
index dbe1122..f657b38 100644 (file)
--- a/arch/blackfin/kernel/ipipe.c
+++ b/arch/blackfin/kernel/ipipe.c
@@ -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>
 

diff --git a/arch/blackfin/kernel/kgdb_test.c b/arch/blackfin/kernel/kgdb_test.c
index 4a7dcfe..18ab004 100644 (file)
--- a/arch/blackfin/kernel/kgdb_test.c
+++ b/arch/blackfin/kernel/kgdb_test.c
@@ -13,7 +13,6 @@
 
 #include <asm/current.h>
 #include <asm/uaccess.h>
-#include <asm/system.h>
 
 #include <asm/blackfin.h>
 

diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index a80a643..c0f4fe2 100644 (file)
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -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);
 

diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 75089f8..e1f88e0 100644 (file)
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -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>

diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index c4c0081..b0434f8 100644 (file)
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -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

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index d6102c8..2aa0193 100644 (file)
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -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);

diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 050db44..44bbf2f 100644 (file)
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -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)
 {

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 655f25d..de5c2c3 100644 (file)
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -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>