summaryrefslogtreecommitdiffstats
path: root/arch/sparc/kernel/sun4d_smp.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc/kernel/sun4d_smp.c')
-rw-r--r--arch/sparc/kernel/sun4d_smp.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index dfde77f..6959640 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -262,8 +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;
@@ -278,7 +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"
@@ -290,11 +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;
@@ -309,12 +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);
OpenPOWER on IntegriCloud