[PATCH 1/5] ppc RT: ppc_rt.patch

From: Frank Rowand
Date: Mon Mar 07 2005 - 17:44:04 EST

Source: MontaVista Software, Inc.
Signed-off-by: Frank Rowand <frowand@xxxxxxxxxx>

Index: linux-2.6.10/arch/ppc/Kconfig
===================================================================
--- linux-2.6.10.orig/arch/ppc/Kconfig
+++ linux-2.6.10/arch/ppc/Kconfig
@@ -17,9 +17,16 @@ config GENERIC_HARDIRQS

config RWSEM_GENERIC_SPINLOCK
bool
+ depends on !PREEMPT_RT
+
+config ASM_SEMAPHORES
+ bool
+ depends on !PREEMPT_RT
+ default y

config RWSEM_XCHGADD_ALGORITHM
bool
+ depends on !RWSEM_GENERIC_SPINLOCK && !PREEMPT_RT
default y

config GENERIC_CALIBRATE_DELAY
@@ -862,15 +869,7 @@ config NR_CPUS
depends on SMP
default "4"

-config PREEMPT
- bool "Preemptible Kernel"
- help
- This option reduces the latency of the kernel when reacting to
- real-time or interactive events by allowing a low priority process to
- be preempted even if it is in kernel mode executing a system call.
-
- Say Y here if you are building a kernel for a desktop, embedded
- or real-time system. Say N if you are unsure.
+source "lib/Kconfig.RT"

config HIGHMEM
bool "High memory support"
Index: linux-2.6.10/arch/ppc/kernel/smp.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/kernel/smp.c
+++ linux-2.6.10/arch/ppc/kernel/smp.c
@@ -139,6 +139,11 @@ void smp_send_reschedule(int cpu)
smp_message_pass(cpu, PPC_MSG_RESCHEDULE, 0, 0);
}

+void smp_send_reschedule_allbutself(void)
+{
+ smp_message_pass(MSG_ALL_BUT_SELF, PPC_MSG_RESCHEDULE, 0, 0);
+}
+
#ifdef CONFIG_XMON
void smp_send_xmon_break(int cpu)
{
@@ -163,7 +168,7 @@ void smp_send_stop(void)
* static memory requirements. It also looks cleaner.
* Stolen from the i386 version.
*/
-static DEFINE_SPINLOCK(call_lock);
+static DEFINE_RAW_SPINLOCK(call_lock);

static struct call_data_struct {
void (*func) (void *info);
Index: linux-2.6.10/include/linux/rt_lock.h
===================================================================
--- linux-2.6.10.orig/include/linux/rt_lock.h
+++ linux-2.6.10/include/linux/rt_lock.h
@@ -13,8 +13,13 @@
typedef struct {
volatile unsigned long lock;
# ifdef CONFIG_DEBUG_SPINLOCK
+# ifdef CONFIG_PPC32
+ volatile unsigned long owner_pc;
+ volatile unsigned long owner_cpu;
+# else
unsigned int magic;
# endif
+# endif
# ifdef CONFIG_PREEMPT
unsigned int break_lock;
# endif
@@ -33,7 +38,11 @@ typedef struct {
*/
#ifdef CONFIG_SMP
typedef struct {
+#ifdef CONFIG_PPC32
+ volatile signed int lock;
+#else
volatile unsigned long lock;
+#endif
# ifdef CONFIG_DEBUG_SPINLOCK
unsigned magic;
# endif
Index: linux-2.6.10/arch/ppc/syslib/cpm2_common.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/syslib/cpm2_common.c
+++ linux-2.6.10/arch/ppc/syslib/cpm2_common.c
@@ -115,7 +115,7 @@ cpm2_fastbrg(uint brg, uint rate, int di
/*
* dpalloc / dpfree bits.
*/
-static spinlock_t cpm_dpmem_lock;
+static raw_spinlock_t cpm_dpmem_lock;
/* 16 blocks should be enough to satisfy all requests
* until the memory subsystem goes up... */
static rh_block_t cpm_boot_dpmem_rh_block[16];
Index: linux-2.6.10/arch/ppc/kernel/Makefile
===================================================================
--- linux-2.6.10.orig/arch/ppc/kernel/Makefile
+++ linux-2.6.10/arch/ppc/kernel/Makefile
@@ -13,8 +13,9 @@ extra-y += vmlinux.lds

obj-y := entry.o traps.o irq.o idle.o time.o misc.o \
process.o signal.o ptrace.o align.o \
- semaphore.o syscalls.o setup.o \
+ syscalls.o setup.o \
cputable.o ppc_htab.o perfmon.o
+obj-$(CONFIG_ASM_SEMAPHORES) += semaphore.o
obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o
obj-$(CONFIG_POWER4) += cpu_setup_power4.o
obj-$(CONFIG_MODULES) += module.o ppc_ksyms.o
Index: linux-2.6.10/include/asm-ppc/rwsem.h
===================================================================
--- linux-2.6.10.orig/include/asm-ppc/rwsem.h
+++ linux-2.6.10/include/asm-ppc/rwsem.h
@@ -25,7 +25,7 @@ struct rw_semaphore {
#define RWSEM_WAITING_BIAS (-0x00010000)
#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
- spinlock_t wait_lock;
+ raw_spinlock_t wait_lock;
struct list_head wait_list;
#if RWSEM_DEBUG
int debug;
@@ -42,7 +42,7 @@ struct rw_semaphore {
#endif

#define __RWSEM_INITIALIZER(name) \
- { RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, \
+ { RWSEM_UNLOCKED_VALUE, RAW_SPIN_LOCK_UNLOCKED, \
LIST_HEAD_INIT((name).wait_list) \
__RWSEM_DEBUG_INIT }

Index: linux-2.6.10/arch/ppc/lib/dec_and_lock.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/lib/dec_and_lock.c
+++ linux-2.6.10/arch/ppc/lib/dec_and_lock.c
@@ -19,7 +19,7 @@
*/

#ifndef ATOMIC_DEC_AND_LOCK
-int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock)
+int _atomic_dec_and_raw_spin_lock(atomic_t *atomic, raw_spinlock_t *lock)
{
int counter;
int newcount;
@@ -35,12 +35,12 @@ int _atomic_dec_and_lock(atomic_t *atomi
return 0;
}

- spin_lock(lock);
+ _raw_spin_lock(lock);
if (atomic_dec_and_test(atomic))
return 1;
- spin_unlock(lock);
+ _raw_spin_unlock(lock);
return 0;
}

-EXPORT_SYMBOL(_atomic_dec_and_lock);
+EXPORT_SYMBOL(_atomic_dec_and_raw_spin_lock);
#endif /* ATOMIC_DEC_AND_LOCK */
Index: linux-2.6.10/arch/ppc/8260_io/enet.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/8260_io/enet.c
+++ linux-2.6.10/arch/ppc/8260_io/enet.c
@@ -116,7 +116,7 @@ struct scc_enet_private {
scc_t *sccp;
struct net_device_stats stats;
uint tx_full;
- spinlock_t lock;
+ raw_spinlock_t lock;
};

static int scc_enet_open(struct net_device *dev);
Index: linux-2.6.10/arch/ppc/syslib/prom.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/syslib/prom.c
+++ linux-2.6.10/arch/ppc/syslib/prom.c
@@ -1397,7 +1397,7 @@ print_properties(struct device_node *np)
}
#endif

-static DEFINE_SPINLOCK(rtas_lock);
+static DEFINE_RAW_SPINLOCK(rtas_lock);

/* this can be called after setup -- Cort */
int __openfirmware
Index: linux-2.6.10/include/asm-ppc/semaphore.h
===================================================================
--- linux-2.6.10.orig/include/asm-ppc/semaphore.h
+++ linux-2.6.10/include/asm-ppc/semaphore.h
@@ -16,6 +16,10 @@

#ifdef __KERNEL__

+#ifdef CONFIG_PREEMPT_RT
+# include <linux/rt_lock.h>
+#else
+
#include <asm/atomic.h>
#include <asm/system.h>
#include <linux/wait.h>
@@ -106,6 +110,7 @@ extern inline void up(struct semaphore *
__up(sem);
}

+#endif /* CONFIG_PREEMPT_RT */
#endif /* __KERNEL__ */

#endif /* !(_PPC_SEMAPHORE_H) */
Index: linux-2.6.10/arch/ppc/8260_io/fcc_enet.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/8260_io/fcc_enet.c
+++ linux-2.6.10/arch/ppc/8260_io/fcc_enet.c
@@ -322,7 +322,7 @@ struct fcc_enet_private {
volatile fcc_enet_t *ep;
struct net_device_stats stats;
uint tx_full;
- spinlock_t lock;
+ raw_spinlock_t lock;

#ifdef CONFIG_USE_MDIO
uint phy_id;
Index: linux-2.6.10/include/asm-ppc/ocp.h
===================================================================
--- linux-2.6.10.orig/include/asm-ppc/ocp.h
+++ linux-2.6.10/include/asm-ppc/ocp.h
@@ -29,10 +29,10 @@
#include <linux/config.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/device.h>
+#include <linux/rwsem.h>

#include <asm/mmu.h>
#include <asm/ocp_ids.h>
-#include <asm/rwsem.h>
#include <asm/semaphore.h>

#ifdef CONFIG_PPC_OCP
Index: linux-2.6.10/arch/ppc/8xx_io/enet.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/8xx_io/enet.c
+++ linux-2.6.10/arch/ppc/8xx_io/enet.c
@@ -144,7 +144,7 @@ struct scc_enet_private {
unsigned char *rx_vaddr[RX_RING_SIZE];
struct net_device_stats stats;
uint tx_full;
- spinlock_t lock;
+ raw_spinlock_t lock;
};

static int scc_enet_open(struct net_device *dev);
Index: linux-2.6.10/arch/ppc/syslib/open_pic.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/syslib/open_pic.c
+++ linux-2.6.10/arch/ppc/syslib/open_pic.c
@@ -531,7 +531,7 @@ void openpic_reset_processor_phys(u_int
}

#if defined(CONFIG_SMP) || defined(CONFIG_PM)
-static DEFINE_SPINLOCK(openpic_setup_lock);
+static DEFINE_RAW_SPINLOCK(openpic_setup_lock);
#endif

#ifdef CONFIG_SMP
Index: linux-2.6.10/arch/ppc/platforms/pmac_feature.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/platforms/pmac_feature.c
+++ linux-2.6.10/arch/ppc/platforms/pmac_feature.c
@@ -63,7 +63,7 @@ extern struct device_node *k2_skiplist[2
* We use a single global lock to protect accesses. Each driver has
* to take care of its own locking
*/
-static DEFINE_SPINLOCK(feature_lock __pmacdata);
+static DEFINE_RAW_SPINLOCK(feature_lock __pmacdata);

#define LOCK(flags) spin_lock_irqsave(&feature_lock, flags);
#define UNLOCK(flags) spin_unlock_irqrestore(&feature_lock, flags);
Index: linux-2.6.10/arch/ppc/8xx_io/commproc.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/8xx_io/commproc.c
+++ linux-2.6.10/arch/ppc/8xx_io/commproc.c
@@ -372,7 +372,7 @@ cpm_setbrg(uint brg, uint rate)
/*
* dpalloc / dpfree bits.
*/
-static spinlock_t cpm_dpmem_lock;
+static raw_spinlock_t cpm_dpmem_lock;
/*
* 16 blocks should be enough to satisfy all requests
* until the memory subsystem goes up...
Index: linux-2.6.10/arch/ppc/syslib/open_pic2.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/syslib/open_pic2.c
+++ linux-2.6.10/arch/ppc/syslib/open_pic2.c
@@ -386,7 +386,7 @@ static void openpic2_set_spurious(u_int
vec);
}

-static DEFINE_SPINLOCK(openpic2_setup_lock);
+static DEFINE_RAW_SPINLOCK(openpic2_setup_lock);

/*
* Initialize a timer interrupt (and disable it)
Index: linux-2.6.10/arch/ppc/platforms/pmac_nvram.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/platforms/pmac_nvram.c
+++ linux-2.6.10/arch/ppc/platforms/pmac_nvram.c
@@ -80,7 +80,7 @@ static volatile unsigned char *nvram_dat
static int nvram_mult, is_core_99;
static int core99_bank = 0;
static int nvram_partitions[3];
-static DEFINE_SPINLOCK(nv_lock);
+static DEFINE_RAW_SPINLOCK(nv_lock);

extern int pmac_newworld;
extern int system_running;
Index: linux-2.6.10/include/asm-ppc/tlb.h
===================================================================
--- linux-2.6.10.orig/include/asm-ppc/tlb.h
+++ linux-2.6.10/include/asm-ppc/tlb.h
@@ -25,7 +25,11 @@ struct mmu_gather;
extern void tlb_flush(struct mmu_gather *tlb);

/* Get the generic bits... */
+#ifdef CONFIG_PREEMPT_RT
+#include <asm-generic/tlb-simple.h>
+#else
#include <asm-generic/tlb.h>
+#endif

/* Nothing needed here in fact... */
#define tlb_start_vma(tlb, vma) do { } while (0)
@@ -38,7 +42,7 @@ static inline void __tlb_remove_tlb_entr
unsigned long address)
{
if (pte_val(*ptep) & _PAGE_HASHPTE)
- flush_hash_entry(tlb->mm, ptep, address);
+ flush_hash_entry(tlb_mm(tlb), ptep, address);
}

#else
@@ -50,7 +54,11 @@ static inline void __tlb_remove_tlb_entr
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)

/* Get the generic bits... */
+#ifdef CONFIG_PREEMPT_RT
+#include <asm-generic/tlb-simple.h>
+#else
#include <asm-generic/tlb.h>
+#endif

#endif /* CONFIG_PPC_STD_MMU */

Index: linux-2.6.10/arch/ppc/kernel/traps.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/kernel/traps.c
+++ linux-2.6.10/arch/ppc/kernel/traps.c
@@ -72,7 +72,7 @@ void (*debugger_fault_handler)(struct pt
* Trap & Exception support
*/

-DEFINE_SPINLOCK(die_lock);
+DEFINE_RAW_SPINLOCK(die_lock);

void die(const char * str, struct pt_regs * fp, long err)
{
Index: linux-2.6.10/arch/ppc/platforms/sbc82xx.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/platforms/sbc82xx.c
+++ linux-2.6.10/arch/ppc/platforms/sbc82xx.c
@@ -68,7 +68,7 @@ static void sbc82xx_time_init(void)

static volatile char *sbc82xx_i8259_map;
static char sbc82xx_i8259_mask = 0xff;
-static DEFINE_SPINLOCK(sbc82xx_i8259_lock);
+static DEFINE_RAW_SPINLOCK(sbc82xx_i8259_lock);

static void sbc82xx_i8259_mask_and_ack_irq(unsigned int irq_nr)
{
Index: linux-2.6.10/arch/ppc/platforms/chrp_smp.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/platforms/chrp_smp.c
+++ linux-2.6.10/arch/ppc/platforms/chrp_smp.c
@@ -57,7 +57,7 @@ smp_chrp_setup_cpu(int cpu_nr)
do_openpic_setup_cpu();
}

-static DEFINE_SPINLOCK(timebase_lock);
+static DEFINE_RAW_SPINLOCK(timebase_lock);
static unsigned int timebase_upper = 0, timebase_lower = 0;

void __devinit
Index: linux-2.6.10/include/asm-ppc/hw_irq.h
===================================================================
--- linux-2.6.10.orig/include/asm-ppc/hw_irq.h
+++ linux-2.6.10/include/asm-ppc/hw_irq.h
@@ -13,6 +13,7 @@ extern void timer_interrupt(struct pt_re
#define INLINE_IRQS

#define irqs_disabled() ((mfmsr() & MSR_EE) == 0)
+#define irqs_disabled_flags(flags) ((flags & MSR_EE) == 0)

#ifdef INLINE_IRQS

Index: linux-2.6.10/include/asm-ppc/spinlock.h
===================================================================
--- linux-2.6.10.orig/include/asm-ppc/spinlock.h
+++ linux-2.6.10/include/asm-ppc/spinlock.h
@@ -7,17 +7,6 @@
* Simple spin lock operations.
*/

-typedef struct {
- volatile unsigned long lock;
-#ifdef CONFIG_DEBUG_SPINLOCK
- volatile unsigned long owner_pc;
- volatile unsigned long owner_cpu;
-#endif
-#ifdef CONFIG_PREEMPT
- unsigned int break_lock;
-#endif
-} spinlock_t;
-
#ifdef __KERNEL__
#ifdef CONFIG_DEBUG_SPINLOCK
#define SPINLOCK_DEBUG_INIT , 0, 0
@@ -25,16 +14,18 @@ typedef struct {
#define SPINLOCK_DEBUG_INIT /* */
#endif

-#define SPIN_LOCK_UNLOCKED (spinlock_t) { 0 SPINLOCK_DEBUG_INIT }
+#define __RAW_SPIN_LOCK_UNLOCKED { 0 SPINLOCK_DEBUG_INIT }
+#define RAW_SPIN_LOCK_UNLOCKED (raw_spinlock_t) __RAW_SPIN_LOCK_UNLOCKED

-#define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
-#define spin_is_locked(x) ((x)->lock != 0)
-#define spin_unlock_wait(x) do { barrier(); } while(spin_is_locked(x))
-#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock)
+#define __raw_spin_lock_init(x) do { *(x) = RAW_SPIN_LOCK_UNLOCKED; } while(0)
+#define __raw_spin_is_locked(x) ((x)->lock != 0)
+#define __raw_spin_unlock_wait(x) \
+ do { barrier(); } while(__raw_spin_is_locked(x))
+#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)

#ifndef CONFIG_DEBUG_SPINLOCK

-static inline void _raw_spin_lock(spinlock_t *lock)
+static inline void __raw_spin_lock(raw_spinlock_t *lock)
{
unsigned long tmp;

@@ -55,48 +46,32 @@ static inline void _raw_spin_lock(spinlo
: "cr0", "memory");
}

-static inline void _raw_spin_unlock(spinlock_t *lock)
+static inline void __raw_spin_unlock(raw_spinlock_t *lock)
{
__asm__ __volatile__("eieio # spin_unlock": : :"memory");
lock->lock = 0;
}

-#define _raw_spin_trylock(l) (!test_and_set_bit(0,&(l)->lock))
+#define __raw_spin_trylock(l) (!test_and_set_bit(0,&(l)->lock))

#else

-extern void _raw_spin_lock(spinlock_t *lock);
-extern void _raw_spin_unlock(spinlock_t *lock);
-extern int _raw_spin_trylock(spinlock_t *lock);
+extern void __raw_spin_lock(raw_spinlock_t *lock);
+extern void __raw_spin_unlock(raw_spinlock_t *lock);
+extern int __raw_spin_trylock(raw_spinlock_t *lock);

#endif

-/*
- * Read-write spinlocks, allowing multiple readers
- * but only one writer.
- *
- * NOTE! it is quite common to have readers in interrupts
- * but no interrupt writers. For those circumstances we
- * can "mix" irq-safe locks - any writer needs to get a
- * irq-safe write-lock, but readers can get non-irqsafe
- * read-locks.
- */
-typedef struct {
- volatile signed int lock;
-#ifdef CONFIG_PREEMPT
- unsigned int break_lock;
-#endif
-} rwlock_t;
-
-#define RW_LOCK_UNLOCKED (rwlock_t) { 0 }
-#define rwlock_init(lp) do { *(lp) = RW_LOCK_UNLOCKED; } while(0)
+#define __RAW_RW_LOCK_UNLOCKED { 0 }
+#define RAW_RW_LOCK_UNLOCKED (raw_rwlock_t) __RAW_RW_LOCK_UNLOCKED
+#define __raw_rwlock_init(lp) do { *(lp) = RAW_RW_LOCK_UNLOCKED; } while(0)

-#define read_can_lock(rw) ((rw)->lock >= 0)
-#define write_can_lock(rw) (!(rw)->lock)
+#define __raw_read_can_lock(rw) ((rw)->lock >= 0)
+#define __raw_write_can_lock(rw) (!(rw)->lock)

#ifndef CONFIG_DEBUG_SPINLOCK

-static __inline__ int _raw_read_trylock(rwlock_t *rw)
+static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
{
signed int tmp;

@@ -116,7 +91,7 @@ static __inline__ int _raw_read_trylock(
return tmp > 0;
}

-static __inline__ void _raw_read_lock(rwlock_t *rw)
+static __inline__ void __raw_read_lock(raw_rwlock_t *rw)
{
signed int tmp;

@@ -137,7 +112,7 @@ static __inline__ void _raw_read_lock(rw
: "cr0", "memory");
}

-static __inline__ void _raw_read_unlock(rwlock_t *rw)
+static __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
{
signed int tmp;

@@ -153,7 +128,7 @@ static __inline__ void _raw_read_unlock(
: "cr0", "memory");
}

-static __inline__ int _raw_write_trylock(rwlock_t *rw)
+static __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
{
signed int tmp;

@@ -173,7 +148,7 @@ static __inline__ int _raw_write_trylock
return tmp == 0;
}

-static __inline__ void _raw_write_lock(rwlock_t *rw)
+static __inline__ void __raw_write_lock(raw_rwlock_t *rw)
{
signed int tmp;

@@ -194,7 +169,7 @@ static __inline__ void _raw_write_lock(r
: "cr0", "memory");
}

-static __inline__ void _raw_write_unlock(rwlock_t *rw)
+static __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
{
__asm__ __volatile__("eieio # write_unlock": : :"memory");
rw->lock = 0;
@@ -202,12 +177,12 @@ static __inline__ void _raw_write_unlock

#else

-extern void _raw_read_lock(rwlock_t *rw);
-extern void _raw_read_unlock(rwlock_t *rw);
-extern void _raw_write_lock(rwlock_t *rw);
-extern void _raw_write_unlock(rwlock_t *rw);
-extern int _raw_read_trylock(rwlock_t *rw);
-extern int _raw_write_trylock(rwlock_t *rw);
+extern void __raw_read_lock(raw_rwlock_t *rw);
+extern void __raw_read_unlock(raw_rwlock_t *rw);
+extern void __raw_write_lock(raw_rwlock_t *rw);
+extern void __raw_write_unlock(raw_rwlock_t *rw);
+extern int __raw_read_trylock(raw_rwlock_t *rw);
+extern int __raw_write_trylock(raw_rwlock_t *rw);

#endif

Index: linux-2.6.10/arch/ppc/8xx_io/fec.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/8xx_io/fec.c
+++ linux-2.6.10/arch/ppc/8xx_io/fec.c
@@ -165,7 +165,7 @@ struct fec_enet_private {

struct net_device_stats stats;
uint tx_full;
- spinlock_t lock;
+ raw_spinlock_t lock;

#ifdef CONFIG_USE_MDIO
uint phy_id;
Index: linux-2.6.10/arch/ppc/lib/locks.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/lib/locks.c
+++ linux-2.6.10/arch/ppc/lib/locks.c
@@ -43,7 +43,7 @@ static inline unsigned long __spin_trylo
return ret;
}

-void _raw_spin_lock(spinlock_t *lock)
+void __raw_spin_lock(raw_spinlock_t *lock)
{
int cpu = smp_processor_id();
unsigned int stuck = INIT_STUCK;
@@ -63,9 +63,9 @@ void _raw_spin_lock(spinlock_t *lock)
lock->owner_pc = (unsigned long)__builtin_return_address(0);
lock->owner_cpu = cpu;
}
-EXPORT_SYMBOL(_raw_spin_lock);
+EXPORT_SYMBOL(__raw_spin_lock);

-int _raw_spin_trylock(spinlock_t *lock)
+int __raw_spin_trylock(raw_spinlock_t *lock)
{
if (__spin_trylock(&lock->lock))
return 0;
@@ -73,9 +73,9 @@ int _raw_spin_trylock(spinlock_t *lock)
lock->owner_pc = (unsigned long)__builtin_return_address(0);
return 1;
}
-EXPORT_SYMBOL(_raw_spin_trylock);
+EXPORT_SYMBOL(__raw_spin_trylock);

-void _raw_spin_unlock(spinlock_t *lp)
+void __raw_spin_unlock(raw_spinlock_t *lp)
{
if ( !lp->lock )
printk("_spin_unlock(%p): no lock cpu %d curr PC %p %s/%d\n",
@@ -89,13 +89,13 @@ void _raw_spin_unlock(spinlock_t *lp)
wmb();
lp->lock = 0;
}
-EXPORT_SYMBOL(_raw_spin_unlock);
+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)
+static __inline__ int __read_trylock(raw_rwlock_t *rw)
{
signed int tmp;

@@ -115,13 +115,13 @@ static __inline__ int __read_trylock(rwl
return tmp;
}

-int _raw_read_trylock(rwlock_t *rw)
+int __raw_read_trylock(raw_rwlock_t *rw)
{
return __read_trylock(rw) > 0;
}
-EXPORT_SYMBOL(_raw_read_trylock);
+EXPORT_SYMBOL(__raw_read_trylock);

-void _raw_read_lock(rwlock_t *rw)
+void __raw_read_lock(rwlock_t *rw)
{
unsigned int stuck;

@@ -136,9 +136,9 @@ void _raw_read_lock(rwlock_t *rw)
}
}
}
-EXPORT_SYMBOL(_raw_read_lock);
+EXPORT_SYMBOL(__raw_read_lock);

-void _raw_read_unlock(rwlock_t *rw)
+void __raw_read_unlock(raw_rwlock_t *rw)
{
if ( rw->lock == 0 )
printk("_read_unlock(): %s/%d (nip %08lX) lock %d\n",
@@ -147,9 +147,9 @@ void _raw_read_unlock(rwlock_t *rw)
wmb();
atomic_dec((atomic_t *) &(rw)->lock);
}
-EXPORT_SYMBOL(_raw_read_unlock);
+EXPORT_SYMBOL(__raw_read_unlock);

-void _raw_write_lock(rwlock_t *rw)
+void __raw_write_lock(raw_rwlock_t *rw)
{
unsigned int stuck;

@@ -165,18 +165,18 @@ void _raw_write_lock(rwlock_t *rw)
}
wmb();
}
-EXPORT_SYMBOL(_raw_write_lock);
+EXPORT_SYMBOL(__raw_write_lock);

-int _raw_write_trylock(rwlock_t *rw)
+int __raw_write_trylock(raw_rwlock_t *rw)
{
if (cmpxchg(&rw->lock, 0, -1) != 0)
return 0;
wmb();
return 1;
}
-EXPORT_SYMBOL(_raw_write_trylock);
+EXPORT_SYMBOL(__raw_write_trylock);

-void _raw_write_unlock(rwlock_t *rw)
+void __raw_write_unlock(raw_rwlock_t *rw)
{
if (rw->lock >= 0)
printk("_write_lock(): %s/%d (nip %08lX) lock %d\n",
@@ -185,6 +185,6 @@ void _raw_write_unlock(rwlock_t *rw)
wmb();
rw->lock = 0;
}
-EXPORT_SYMBOL(_raw_write_unlock);
+EXPORT_SYMBOL(__raw_write_unlock);

#endif
Index: linux-2.6.10/arch/ppc/kernel/ppc_ksyms.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/kernel/ppc_ksyms.c
+++ linux-2.6.10/arch/ppc/kernel/ppc_ksyms.c
@@ -295,9 +295,11 @@ EXPORT_SYMBOL(console_drivers);
EXPORT_SYMBOL(xmon);
EXPORT_SYMBOL(xmon_printf);
#endif
+#ifdef CONFIG_ASM_SEMAPHORES
EXPORT_SYMBOL(__up);
EXPORT_SYMBOL(__down);
EXPORT_SYMBOL(__down_interruptible);
+#endif

#if defined(CONFIG_KGDB) || defined(CONFIG_XMON)
extern void (*debugger)(struct pt_regs *regs);
Index: linux-2.6.10/arch/ppc/platforms/pmac_pic.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/platforms/pmac_pic.c
+++ linux-2.6.10/arch/ppc/platforms/pmac_pic.c
@@ -68,7 +68,7 @@ static int max_irqs __pmacdata;
static int max_real_irqs __pmacdata;
static u32 level_mask[4] __pmacdata;

-static DEFINE_SPINLOCK(pmac_pic_lock __pmacdata);
+static DEFINE_RAW_SPINLOCK(pmac_pic_lock __pmacdata);


#define GATWICK_IRQ_POOL_SIZE 10
Index: linux-2.6.10/arch/ppc/kernel/dma-mapping.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/kernel/dma-mapping.c
+++ linux-2.6.10/arch/ppc/kernel/dma-mapping.c
@@ -71,7 +71,7 @@ int map_page(unsigned long va, phys_addr
* This is the page table (2MB) covering uncached, DMA consistent allocations
*/
static pte_t *consistent_pte;
-static DEFINE_SPINLOCK(consistent_lock);
+static DEFINE_RAW_SPINLOCK(consistent_lock);

/*
* VM region handling support.
Index: linux-2.6.10/arch/ppc/syslib/ocp.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/syslib/ocp.c
+++ linux-2.6.10/arch/ppc/syslib/ocp.c
@@ -45,11 +45,11 @@
#include <linux/pm.h>
#include <linux/bootmem.h>
#include <linux/device.h>
+#include <linux/rwsem.h>

#include <asm/io.h>
#include <asm/ocp.h>
#include <asm/errno.h>
-#include <asm/rwsem.h>
#include <asm/semaphore.h>

//#define DBG(x) printk x
Index: linux-2.6.10/arch/ppc/kernel/time.c
===================================================================
--- linux-2.6.10.orig/arch/ppc/kernel/time.c
+++ linux-2.6.10/arch/ppc/kernel/time.c
@@ -91,7 +91,7 @@ extern unsigned long wall_jiffies;

static long time_offset;

-DEFINE_SPINLOCK(rtc_lock);
+DEFINE_RAW_SPINLOCK(rtc_lock);

EXPORT_SYMBOL(rtc_lock);

-
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