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authorDavid S. Miller <davem@davemloft.net>2006-02-21 13:59:47 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:13:49 -0800
commitd371c0c17466b7e7bb4d395f96aa885a23df1073 (patch)
treec4705a6b3fa5e58d7003c82395746434c089d6ee /arch/sparc64/kernel/smp.c
parentc79f76777d678ba454aa727800e1386a1fd1f2e8 (diff)
[SPARC64]: Pass multiple CPUs at once to hypervisor cross-call API.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/smp.c')
-rw-r--r--arch/sparc64/kernel/smp.c54
1 files changed, 0 insertions, 54 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index b586345fe3b9..356d423ae14d 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -557,7 +557,6 @@ retry:
}
}
-#if 0
/* Multi-cpu list version. */
static int init_cpu_list(u16 *list, cpumask_t mask)
{
@@ -631,59 +630,6 @@ static void hypervisor_xcall_deliver(u64 data0, u64 data1, u64 data2, cpumask_t
put_cpu();
}
-#else
-/* Single-cpu list version. */
-static void hypervisor_xcall_deliver(u64 data0, u64 data1, u64 data2, cpumask_t mask)
-{
- int this_cpu = get_cpu();
- struct trap_per_cpu *tb = &trap_block[this_cpu];
- u64 *mondo = __va(tb->cpu_mondo_block_pa);
- u16 *cpu_list = __va(tb->cpu_list_pa);
- int i;
-
- mondo[0] = data0;
- mondo[1] = data1;
- mondo[2] = data2;
- wmb();
-
- for_each_cpu_mask(i, mask) {
- int retries = 0;
-
- do {
- register unsigned long func __asm__("%o5");
- register unsigned long arg0 __asm__("%o0");
- register unsigned long arg1 __asm__("%o1");
- register unsigned long arg2 __asm__("%o2");
-
- cpu_list[0] = i;
- func = HV_FAST_CPU_MONDO_SEND;
- arg0 = 1;
- arg1 = tb->cpu_list_pa;
- arg2 = tb->cpu_mondo_block_pa;
-
- __asm__ __volatile__("ta %8"
- : "=&r" (func), "=&r" (arg0),
- "=&r" (arg1), "=&r" (arg2)
- : "0" (func), "1" (arg0),
- "2" (arg1), "3" (arg2),
- "i" (HV_FAST_TRAP)
- : "memory");
- if (likely(arg0 == HV_EOK))
- break;
-
- if (unlikely(++retries > 100)) {
- printk("CPU[%d]: sun4v mondo error %lu\n",
- this_cpu, func);
- break;
- }
-
- udelay(2 * i);
- } while (1);
- }
-
- put_cpu();
-}
-#endif
/* Send cross call to all processors mentioned in MASK
* except self.