sparc32: Kill smp_message_pass() and related code.

Completely unused, and it just makes the SMP message
passing code on 32-bit sparc look more complex than
it is.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 0 insertions, 77 deletions

diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 0def48158c7..dfde77ff084 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -335,37 +335,6 @@ void smp4d_cross_call_irq(void)
         ccall_info.processors_out[i] = 1;
 }
 
-static int smp4d_stop_cpu_sender;
-
-static void smp4d_stop_cpu(void)
-{
-        int me = hard_smp4d_processor_id();
-        
-        if (me != smp4d_stop_cpu_sender)
-                while(1) barrier();
-}
-
-/* Cross calls, in order to work efficiently and atomically do all
- * the message passing work themselves, only stopcpu and reschedule
- * messages come through here.
- */
-void smp4d_message_pass(int target, int msg, unsigned long data, int wait)
-{
-        int me = hard_smp4d_processor_id();
-
-        SMP_PRINTK(("smp4d_message_pass %d %d %08lx %d\n", target, msg, data, wait));
-        if (msg == MSG_STOP_CPU && target == MSG_ALL_BUT_SELF) {
-                unsigned long flags;
-                static DEFINE_SPINLOCK(stop_cpu_lock);
-                spin_lock_irqsave(&stop_cpu_lock, flags);
-                smp4d_stop_cpu_sender = me;
-                smp4d_cross_call((smpfunc_t)smp4d_stop_cpu, 0, 0, 0, 0, 0);
-                spin_unlock_irqrestore(&stop_cpu_lock, flags);
-        }
-        printk("Yeeee, trying to send SMP msg(%d) to %d on cpu %d\n", msg, target, me);
-        panic("Bogon SMP message pass.");
-}
-
 void smp4d_percpu_timer_interrupt(struct pt_regs *regs)
 {
         struct pt_regs *old_regs;
@@ -439,7 +408,6 @@ void __init sun4d_init_smp(void)
         BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4d_blackbox_id);
         BTFIXUPSET_BLACKBOX(load_current, smp4d_blackbox_current);
         BTFIXUPSET_CALL(smp_cross_call, smp4d_cross_call, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(smp_message_pass, smp4d_message_pass, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4d_processor_id, BTFIXUPCALL_NORM);
         
         for (i = 0; i < NR_CPUS; i++) {
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 0b940726716..ffb875aacb7 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -34,8 +34,6 @@
 
 #include "irq.h"
 
-#define IRQ_RESCHEDULE          13
-#define IRQ_STOP_CPU            14
 #define IRQ_CROSS_CALL          15
 
 extern ctxd_t *srmmu_ctx_table_phys;
@@ -232,48 +230,6 @@ void smp4m_irq_rotate(int cpu)
                 set_irq_udt(next);
 }
 
-/* Cross calls, in order to work efficiently and atomically do all
- * the message passing work themselves, only stopcpu and reschedule
- * messages come through here.
- */
-void smp4m_message_pass(int target, int msg, unsigned long data, int wait)
-{
-        static unsigned long smp_cpu_in_msg[NR_CPUS];
-        cpumask_t mask;
-        int me = smp_processor_id();
-        int irq, i;
-
-        if(msg == MSG_RESCHEDULE) {
-                irq = IRQ_RESCHEDULE;
-
-                if(smp_cpu_in_msg[me])
-                        return;
-        } else if(msg == MSG_STOP_CPU) {
-                irq = IRQ_STOP_CPU;
-        } else {
-                goto barf;
-        }
-
-        smp_cpu_in_msg[me]++;
-        if(target == MSG_ALL_BUT_SELF || target == MSG_ALL) {
-                mask = cpu_online_map;
-                if(target == MSG_ALL_BUT_SELF)
-                        cpu_clear(me, mask);
-                for(i = 0; i < 4; i++) {
-                        if (cpu_isset(i, mask))
-                                set_cpu_int(i, irq);
-                }
-        } else {
-                set_cpu_int(target, irq);
-        }
-        smp_cpu_in_msg[me]--;
-
-        return;
-barf:
-        printk("Yeeee, trying to send SMP msg(%d) on cpu %d\n", msg, me);
-        panic("Bogon SMP message pass.");
-}
-
 static struct smp_funcall {
         smpfunc_t func;
         unsigned long arg1;
@@ -413,6 +369,5 @@ void __init sun4m_init_smp(void)
         BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4m_blackbox_id);
         BTFIXUPSET_BLACKBOX(load_current, smp4m_blackbox_current);
         BTFIXUPSET_CALL(smp_cross_call, smp4m_cross_call, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(smp_message_pass, smp4m_message_pass, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4m_processor_id, BTFIXUPCALL_NORM);
 }