[ARM] move include/asm-arm to arch/arm/include/asm

Move platform independent header files to arch/arm/include/asm, leaving
those in asm/arch* and asm/plat* alone.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 0 insertions, 224 deletions

diff --git a/include/asm-arm/spinlock.h b/include/asm-arm/spinlock.h
deleted file mode 100644
index 2b41ebbfa7f..00000000000
--- a/include/asm-arm/spinlock.h
+++ /dev/null
@@ -1,224 +0,0 @@
-#ifndef __ASM_SPINLOCK_H
-#define __ASM_SPINLOCK_H
-
-#if __LINUX_ARM_ARCH__ < 6
-#error SMP not supported on pre-ARMv6 CPUs
-#endif
-
-/*
- * ARMv6 Spin-locking.
- *
- * We exclusively read the old value.  If it is zero, we may have
- * won the lock, so we try exclusively storing it.  A memory barrier
- * is required after we get a lock, and before we release it, because
- * V6 CPUs are assumed to have weakly ordered memory.
- *
- * Unlocked value: 0
- * Locked value: 1
- */
-
-#define __raw_spin_is_locked(x)		((x)->lock != 0)
-#define __raw_spin_unlock_wait(lock) \
-	do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0)
-
-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
-
-static inline void __raw_spin_lock(raw_spinlock_t *lock)
-{
-	unsigned long tmp;
-
-	__asm__ __volatile__(
-"1:	ldrex	%0, [%1]\n"
-"	teq	%0, #0\n"
-#ifdef CONFIG_CPU_32v6K
-"	wfene\n"
-#endif
-"	strexeq	%0, %2, [%1]\n"
-"	teqeq	%0, #0\n"
-"	bne	1b"
-	: "=&r" (tmp)
-	: "r" (&lock->lock), "r" (1)
-	: "cc");
-
-	smp_mb();
-}
-
-static inline int __raw_spin_trylock(raw_spinlock_t *lock)
-{
-	unsigned long tmp;
-
-	__asm__ __volatile__(
-"	ldrex	%0, [%1]\n"
-"	teq	%0, #0\n"
-"	strexeq	%0, %2, [%1]"
-	: "=&r" (tmp)
-	: "r" (&lock->lock), "r" (1)
-	: "cc");
-
-	if (tmp == 0) {
-		smp_mb();
-		return 1;
-	} else {
-		return 0;
-	}
-}
-
-static inline void __raw_spin_unlock(raw_spinlock_t *lock)
-{
-	smp_mb();
-
-	__asm__ __volatile__(
-"	str	%1, [%0]\n"
-#ifdef CONFIG_CPU_32v6K
-"	mcr	p15, 0, %1, c7, c10, 4\n" /* DSB */
-"	sev"
-#endif
-	:
-	: "r" (&lock->lock), "r" (0)
-	: "cc");
-}
-
-/*
- * RWLOCKS
- *
- *
- * Write locks are easy - we just set bit 31.  When unlocking, we can
- * just write zero since the lock is exclusively held.
- */
-
-static inline void __raw_write_lock(raw_rwlock_t *rw)
-{
-	unsigned long tmp;
-
-	__asm__ __volatile__(
-"1:	ldrex	%0, [%1]\n"
-"	teq	%0, #0\n"
-#ifdef CONFIG_CPU_32v6K
-"	wfene\n"
-#endif
-"	strexeq	%0, %2, [%1]\n"
-"	teq	%0, #0\n"
-"	bne	1b"
-	: "=&r" (tmp)
-	: "r" (&rw->lock), "r" (0x80000000)
-	: "cc");
-
-	smp_mb();
-}
-
-static inline int __raw_write_trylock(raw_rwlock_t *rw)
-{
-	unsigned long tmp;
-
-	__asm__ __volatile__(
-"1:	ldrex	%0, [%1]\n"
-"	teq	%0, #0\n"
-"	strexeq	%0, %2, [%1]"
-	: "=&r" (tmp)
-	: "r" (&rw->lock), "r" (0x80000000)
-	: "cc");
-
-	if (tmp == 0) {
-		smp_mb();
-		return 1;
-	} else {
-		return 0;
-	}
-}
-
-static inline void __raw_write_unlock(raw_rwlock_t *rw)
-{
-	smp_mb();
-
-	__asm__ __volatile__(
-	"str	%1, [%0]\n"
-#ifdef CONFIG_CPU_32v6K
-"	mcr	p15, 0, %1, c7, c10, 4\n" /* DSB */
-"	sev\n"
-#endif
-	:
-	: "r" (&rw->lock), "r" (0)
-	: "cc");
-}
-
-/* write_can_lock - would write_trylock() succeed? */
-#define __raw_write_can_lock(x)		((x)->lock == 0)
-
-/*
- * Read locks are a bit more hairy:
- *  - Exclusively load the lock value.
- *  - Increment it.
- *  - Store new lock value if positive, and we still own this location.
- *    If the value is negative, we've already failed.
- *  - If we failed to store the value, we want a negative result.
- *  - If we failed, try again.
- * Unlocking is similarly hairy.  We may have multiple read locks
- * currently active.  However, we know we won't have any write
- * locks.
- */
-static inline void __raw_read_lock(raw_rwlock_t *rw)
-{
-	unsigned long tmp, tmp2;
-
-	__asm__ __volatile__(
-"1:	ldrex	%0, [%2]\n"
-"	adds	%0, %0, #1\n"
-"	strexpl	%1, %0, [%2]\n"
-#ifdef CONFIG_CPU_32v6K
-"	wfemi\n"
-#endif
-"	rsbpls	%0, %1, #0\n"
-"	bmi	1b"
-	: "=&r" (tmp), "=&r" (tmp2)
-	: "r" (&rw->lock)
-	: "cc");
-
-	smp_mb();
-}
-
-static inline void __raw_read_unlock(raw_rwlock_t *rw)
-{
-	unsigned long tmp, tmp2;
-
-	smp_mb();
-
-	__asm__ __volatile__(
-"1:	ldrex	%0, [%2]\n"
-"	sub	%0, %0, #1\n"
-"	strex	%1, %0, [%2]\n"
-"	teq	%1, #0\n"
-"	bne	1b"
-#ifdef CONFIG_CPU_32v6K
-"\n	cmp	%0, #0\n"
-"	mcreq   p15, 0, %0, c7, c10, 4\n"
-"	seveq"
-#endif
-	: "=&r" (tmp), "=&r" (tmp2)
-	: "r" (&rw->lock)
-	: "cc");
-}
-
-static inline int __raw_read_trylock(raw_rwlock_t *rw)
-{
-	unsigned long tmp, tmp2 = 1;
-
-	__asm__ __volatile__(
-"1:	ldrex	%0, [%2]\n"
-"	adds	%0, %0, #1\n"
-"	strexpl	%1, %0, [%2]\n"
-	: "=&r" (tmp), "+r" (tmp2)
-	: "r" (&rw->lock)
-	: "cc");
-
-	smp_mb();
-	return tmp2 == 0;
-}
-
-/* read_can_lock - would read_trylock() succeed? */
-#define __raw_read_can_lock(x)		((x)->lock < 0x80000000)
-
-#define _raw_spin_relax(lock)	cpu_relax()
-#define _raw_read_relax(lock)	cpu_relax()
-#define _raw_write_relax(lock)	cpu_relax()
-
-#endif /* __ASM_SPINLOCK_H */