diff options
| author | David S. Miller <davem@davemloft.net> | 2006-02-21 13:59:47 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:13:49 -0800 |
| commit | d371c0c17466b7e7bb4d395f96aa885a23df1073 (patch) | |
| tree | c4705a6b3fa5e58d7003c82395746434c089d6ee | |
| parent | c79f76777d678ba454aa727800e1386a1fd1f2e8 (diff) | |
[SPARC64]: Pass multiple CPUs at once to hypervisor cross-call API.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc64/kernel/smp.c | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index b586345fe3b..356d423ae14 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. |