4 files changed, 14 insertions, 83 deletions

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 0e8065207596..78af684f63b9 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -84,6 +84,7 @@ config SPARC64
         select HAVE_NMI
         select HAVE_REGS_AND_STACK_ACCESS_API
         select ARCH_USE_QUEUED_RWLOCKS
+        select ARCH_USE_QUEUED_SPINLOCKS
 
 config ARCH_DEFCONFIG
         string
diff --git a/arch/sparc/include/asm/qspinlock.h b/arch/sparc/include/asm/qspinlock.h
new file mode 100644
index 000000000000..5ae9a2802846
--- /dev/null
+++ b/arch/sparc/include/asm/qspinlock.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_SPARC_QSPINLOCK_H
+#define _ASM_SPARC_QSPINLOCK_H
+
+#include <asm-generic/qspinlock_types.h>
+#include <asm-generic/qspinlock.h>
+
+#endif /* _ASM_SPARC_QSPINLOCK_H */
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 8901c2d4ada9..f7028f5e1a5a 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -11,89 +11,7 @@
 #include <asm/processor.h>
 #include <asm/barrier.h>
 #include <asm/qrwlock.h>
-
-/* To get debugging spinlocks which detect and catch
- * deadlock situations, set CONFIG_DEBUG_SPINLOCK
- * and rebuild your kernel.
- */
-
-/* Because we play games to save cycles in the non-contention case, we
- * need to be extra careful about branch targets into the "spinning"
- * code.  They live in their own section, but the newer V9 branches
- * have a shorter range than the traditional 32-bit sparc branch
- * variants.  The rule is that the branches that go into and out of
- * the spinner sections must be pre-V9 branches.
- */
-
-#define arch_spin_is_locked(lp) ((lp)->lock != 0)
-
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
-        smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
-        unsigned long tmp;
-
-        __asm__ __volatile__(
-"1:     ldstub          [%1], %0\n"
-"       brnz,pn         %0, 2f\n"
-"        nop\n"
-"       .subsection     2\n"
-"2:     ldub            [%1], %0\n"
-"       brnz,pt         %0, 2b\n"
-"        nop\n"
-"       ba,a,pt         %%xcc, 1b\n"
-"       .previous"
-        : "=&r" (tmp)
-        : "r" (lock)
-        : "memory");
-}
-
-static inline int arch_spin_trylock(arch_spinlock_t *lock)
-{
-        unsigned long result;
-
-        __asm__ __volatile__(
-"       ldstub          [%1], %0\n"
-        : "=r" (result)
-        : "r" (lock)
-        : "memory");
-
-        return (result == 0UL);
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
-        __asm__ __volatile__(
-"       stb             %%g0, [%0]"
-        : /* No outputs */
-        : "r" (lock)
-        : "memory");
-}
-
-static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
-{
-        unsigned long tmp1, tmp2;
-
-        __asm__ __volatile__(
-"1:     ldstub          [%2], %0\n"
-"       brnz,pn         %0, 2f\n"
-"        nop\n"
-"       .subsection     2\n"
-"2:     rdpr            %%pil, %1\n"
-"       wrpr            %3, %%pil\n"
-"3:     ldub            [%2], %0\n"
-"       brnz,pt         %0, 3b\n"
-"        nop\n"
-"       ba,pt           %%xcc, 1b\n"
-"        wrpr           %1, %%pil\n"
-"       .previous"
-        : "=&r" (tmp1), "=&r" (tmp2)
-        : "r"(lock), "r"(flags)
-        : "memory");
-}
+#include <asm/qspinlock.h>
 
 #define arch_read_lock_flags(p, f) arch_read_lock(p)
 #define arch_write_lock_flags(p, f) arch_write_lock(p)
diff --git a/arch/sparc/include/asm/spinlock_types.h b/arch/sparc/include/asm/spinlock_types.h
index 64fce21b23df..bce8ef44dfa9 100644
--- a/arch/sparc/include/asm/spinlock_types.h
+++ b/arch/sparc/include/asm/spinlock_types.h
@@ -1,11 +1,16 @@
 #ifndef __SPARC_SPINLOCK_TYPES_H
 #define __SPARC_SPINLOCK_TYPES_H
 
+#ifdef CONFIG_QUEUED_SPINLOCKS
+#include <asm-generic/qspinlock_types.h>
+#else
+
 typedef struct {
         volatile unsigned char lock;
 } arch_spinlock_t;
 
 #define __ARCH_SPIN_LOCK_UNLOCKED       { 0 }
+#endif /* CONFIG_QUEUED_SPINLOCKS */
 
 #ifdef CONFIG_QUEUED_RWLOCKS
 #include <asm-generic/qrwlock_types.h>