X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fsparc%2Fkernel%2Fsun4d_smp.c;h=69596402a500092c562b3ec97e7269efcc8981ec;hb=d26acd92fa990764b72608a68224f46fac377032;hp=89a6de95070c761d0fe3237bc89a49f2063fc1fb;hpb=644b55ce889edd37d6406df26e2d96d7a7390749;p=linux-2.6

diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 89a6de9507..69596402a5 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -19,12 +19,12 @@
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/profile.h>
+#include <linux/delay.h>
 
 #include <asm/ptrace.h>
 #include <asm/atomic.h>
 #include <asm/irq_regs.h>
 
-#include <asm/delay.h>
 #include <asm/irq.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
@@ -41,8 +41,6 @@
 
 extern ctxd_t *srmmu_ctx_table_phys;
 
-extern void calibrate_delay(void);
-
 static volatile int smp_processors_ready = 0;
 static int smp_highest_cpu;
 extern volatile unsigned long cpu_callin_map[NR_CPUS];
@@ -264,8 +262,9 @@ static struct smp_funcall {
 static DEFINE_SPINLOCK(cross_call_lock);
 
 /* Cross calls must be serialized, at least currently. */
-void smp4d_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
-		    unsigned long arg3, unsigned long arg4, unsigned long arg5)
+static void smp4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1,
+			     unsigned long arg2, unsigned long arg3,
+			     unsigned long arg4)
 {
 	if(smp_processors_ready) {
 		register int high = smp_highest_cpu;
@@ -280,7 +279,7 @@ void smp4d_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
 			register unsigned long a2 asm("i2") = arg2;
 			register unsigned long a3 asm("i3") = arg3;
 			register unsigned long a4 asm("i4") = arg4;
-			register unsigned long a5 asm("i5") = arg5;
+			register unsigned long a5 asm("i5") = 0;
 
 			__asm__ __volatile__(
 				"std %0, [%6]\n\t"
@@ -292,11 +291,10 @@ void smp4d_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
 
 		/* Init receive/complete mapping, plus fire the IPI's off. */
 		{
-			cpumask_t mask;
 			register int i;
 
-			mask = cpumask_of_cpu(hard_smp4d_processor_id());
-			cpus_andnot(mask, cpu_online_map, mask);
+			cpu_clear(smp_processor_id(), mask);
+			cpus_and(mask, cpu_online_map, mask);
 			for(i = 0; i <= high; i++) {
 				if (cpu_isset(i, mask)) {
 					ccall_info.processors_in[i] = 0;
@@ -311,12 +309,16 @@ void smp4d_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
 
 			i = 0;
 			do {
+				if (!cpu_isset(i, mask))
+					continue;
 				while(!ccall_info.processors_in[i])
 					barrier();
 			} while(++i <= high);
 
 			i = 0;
 			do {
+				if (!cpu_isset(i, mask))
+					continue;
 				while(!ccall_info.processors_out[i])
 					barrier();
 			} while(++i <= high);
@@ -337,37 +339,6 @@ 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;
@@ -441,7 +412,6 @@ 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++) {