powerpc: Remove arch/ppc and include/asm-ppc

All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.

Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 189 deletions

diff --git a/arch/ppc/lib/locks.c b/arch/ppc/lib/locks.c
deleted file mode 100644
index ea4aee6b20e6..000000000000
--- a/arch/ppc/lib/locks.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * Locks for smp ppc
- *
- * Written by Cort Dougan (cort@cs.nmt.edu)
- */
-
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <asm/ppc_asm.h>
-#include <asm/smp.h>
-
-#ifdef CONFIG_DEBUG_SPINLOCK
-
-#undef INIT_STUCK
-#define INIT_STUCK 200000000 /*0xffffffff*/
-
-/*
- * Try to acquire a spinlock.
- * Only does the stwcx. if the load returned 0 - the Programming
- * Environments Manual suggests not doing unnecessary stcwx.'s
- * since they may inhibit forward progress by other CPUs in getting
- * a lock.
- */
-static inline unsigned long __spin_trylock(volatile unsigned long *lock)
-{
-	unsigned long ret;
-
-	__asm__ __volatile__ ("\n\
-1:	lwarx	%0,0,%1\n\
-	cmpwi	0,%0,0\n\
-	bne	2f\n"
-	PPC405_ERR77(0,%1)
-"	stwcx.	%2,0,%1\n\
-	bne-	1b\n\
-	isync\n\
-2:"
-	: "=&r"(ret)
-	: "r"(lock), "r"(1)
-	: "cr0", "memory");
-
-	return ret;
-}
-
-void _raw_spin_lock(spinlock_t *lock)
-{
-	int cpu = smp_processor_id();
-	unsigned int stuck = INIT_STUCK;
-	while (__spin_trylock(&lock->lock)) {
-		while ((unsigned volatile long)lock->lock != 0) {
-			if (!--stuck) {
-				printk("_spin_lock(%p) CPU#%d NIP %p"
-				       " holder: cpu %ld pc %08lX\n",
-				       lock, cpu, __builtin_return_address(0),
-				       lock->owner_cpu,lock->owner_pc);
-				stuck = INIT_STUCK;
-				/* steal the lock */
-				/*xchg_u32((void *)&lock->lock,0);*/
-			}
-		}
-	}
-	lock->owner_pc = (unsigned long)__builtin_return_address(0);
-	lock->owner_cpu = cpu;
-}
-EXPORT_SYMBOL(_raw_spin_lock);
-
-int _raw_spin_trylock(spinlock_t *lock)
-{
-	if (__spin_trylock(&lock->lock))
-		return 0;
-	lock->owner_cpu = smp_processor_id();
-	lock->owner_pc = (unsigned long)__builtin_return_address(0);
-	return 1;
-}
-EXPORT_SYMBOL(_raw_spin_trylock);
-
-void _raw_spin_unlock(spinlock_t *lp)
-{
-  	if ( !lp->lock )
-		printk("_spin_unlock(%p): no lock cpu %d curr PC %p %s/%d\n",
-		       lp, smp_processor_id(), __builtin_return_address(0),
-		       current->comm, current->pid);
-	if ( lp->owner_cpu != smp_processor_id() )
-		printk("_spin_unlock(%p): cpu %d trying clear of cpu %d pc %lx val %lx\n",
-		      lp, smp_processor_id(), (int)lp->owner_cpu,
-		      lp->owner_pc,lp->lock);
-	lp->owner_pc = lp->owner_cpu = 0;
-	wmb();
-	lp->lock = 0;
-}
-EXPORT_SYMBOL(_raw_spin_unlock);
-
-/*
- * For rwlocks, zero is unlocked, -1 is write-locked,
- * positive is read-locked.
- */
-static __inline__ int __read_trylock(rwlock_t *rw)
-{
-	signed int tmp;
-
-	__asm__ __volatile__(
-"2:	lwarx	%0,0,%1		# __read_trylock\n\
-	addic.	%0,%0,1\n\
-	ble-	1f\n"
-	PPC405_ERR77(0,%1)
-"	stwcx.	%0,0,%1\n\
-	bne-	2b\n\
-	isync\n\
-1:"
-	: "=&r"(tmp)
-	: "r"(&rw->lock)
-	: "cr0", "memory");
-
-	return tmp;
-}
-
-int _raw_read_trylock(rwlock_t *rw)
-{
-	return __read_trylock(rw) > 0;
-}
-EXPORT_SYMBOL(_raw_read_trylock);
-
-void _raw_read_lock(rwlock_t *rw)
-{
-	unsigned int stuck;
-
-	while (__read_trylock(rw) <= 0) {
-		stuck = INIT_STUCK;
-		while (!read_can_lock(rw)) {
-			if (--stuck == 0) {
-				printk("_read_lock(%p) CPU#%d lock %d\n",
-				       rw, raw_smp_processor_id(), rw->lock);
-				stuck = INIT_STUCK;
-			}
-		}
-	}
-}
-EXPORT_SYMBOL(_raw_read_lock);
-
-void _raw_read_unlock(rwlock_t *rw)
-{
-	if ( rw->lock == 0 )
-		printk("_read_unlock(): %s/%d (nip %08lX) lock %d\n",
-		       current->comm,current->pid,current->thread.regs->nip,
-		      rw->lock);
-	wmb();
-	atomic_dec((atomic_t *) &(rw)->lock);
-}
-EXPORT_SYMBOL(_raw_read_unlock);
-
-void _raw_write_lock(rwlock_t *rw)
-{
-	unsigned int stuck;
-
-	while (cmpxchg(&rw->lock, 0, -1) != 0) {
-		stuck = INIT_STUCK;
-		while (!write_can_lock(rw)) {
-			if (--stuck == 0) {
-				printk("write_lock(%p) CPU#%d lock %d)\n",
-				       rw, raw_smp_processor_id(), rw->lock);
-				stuck = INIT_STUCK;
-			}
-		}
-	}
-	wmb();
-}
-EXPORT_SYMBOL(_raw_write_lock);
-
-int _raw_write_trylock(rwlock_t *rw)
-{
-	if (cmpxchg(&rw->lock, 0, -1) != 0)
-		return 0;
-	wmb();
-	return 1;
-}
-EXPORT_SYMBOL(_raw_write_trylock);
-
-void _raw_write_unlock(rwlock_t *rw)
-{
-	if (rw->lock >= 0)
-		printk("_write_lock(): %s/%d (nip %08lX) lock %d\n",
-		      current->comm,current->pid,current->thread.regs->nip,
-		      rw->lock);
-	wmb();
-	rw->lock = 0;
-}
-EXPORT_SYMBOL(_raw_write_unlock);
-
-#endif