提交 7d87d536 编写于 作者: S Suresh Siddha 提交者: Ingo Molnar

x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()

These commits:

	commit 95d313cf
	Author: Mike Travis <travis@sgi.com>
	Date:   Tue Dec 16 17:33:54 2008 -0800

	    x86: Add cpu_mask_to_apicid_and

and
	commit 6eeb7c5a
	Author: Mike Travis <travis@sgi.com>
	Date:   Tue Dec 16 17:33:55 2008 -0800

	    x86: update add-cpu_mask_to_apicid_and to use struct cpumask*

broke interrupt delivery on x2apic platforms.  As x2apic cluster mode uses
logical delivery mode, we need to use logical apicid instead of physical apicid
in x2apic_cpu_mask_to_apicid_and()

Impact: fixes the broken interrupt delivery issue on generic x2apic platforms.
Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com>
Acked-by: NMike Travis <travis@sgi.com>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 36dffab6
......@@ -114,7 +114,7 @@ static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
int cpu;
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* We're using fixed IRQ delivery, can only return one logical APIC ID.
* May as well be the first.
*/
cpu = cpumask_first(cpumask);
......@@ -130,14 +130,14 @@ static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
int cpu;
/*
* We're using fixed IRQ delivery, can only return one phys APIC ID.
* We're using fixed IRQ delivery, can only return one logical APIC ID.
* May as well be the first.
*/
for_each_cpu_and(cpu, cpumask, andmask)
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
return per_cpu(x86_cpu_to_logical_apicid, cpu);
return BAD_APICID;
}
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册