diff options
author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-12-22 20:33:28 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 16:37:30 -0500 |
commit | 7d87d5365556b1c6e8c00abcc632c3ad1fdc58b8 (patch) | |
tree | 396fe05c02afb1e37b66938b0f07098ba50bf5c4 | |
parent | 36dffab679c7eeb91c2507400cf4da6e9e01164e (diff) |
x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
These commits:
commit 95d313cf1c1ecedc8bec5727b09bdacbf67dfc45
Author: Mike Travis <travis@sgi.com>
Date: Tue Dec 16 17:33:54 2008 -0800
x86: Add cpu_mask_to_apicid_and
and
commit 6eeb7c5a99434596c5953a95baa17d2f085664e3
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: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Mike Travis <travis@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r-- | arch/x86/kernel/genx2apic_cluster.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/genx2apic_cluster.c b/arch/x86/kernel/genx2apic_cluster.c index d451c9b9fdff..6ce497cc372d 100644 --- a/arch/x86/kernel/genx2apic_cluster.c +++ b/arch/x86/kernel/genx2apic_cluster.c | |||
@@ -114,7 +114,7 @@ static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask) | |||
114 | int cpu; | 114 | int cpu; |
115 | 115 | ||
116 | /* | 116 | /* |
117 | * We're using fixed IRQ delivery, can only return one phys APIC ID. | 117 | * We're using fixed IRQ delivery, can only return one logical APIC ID. |
118 | * May as well be the first. | 118 | * May as well be the first. |
119 | */ | 119 | */ |
120 | cpu = cpumask_first(cpumask); | 120 | cpu = cpumask_first(cpumask); |
@@ -130,14 +130,14 @@ static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask, | |||
130 | int cpu; | 130 | int cpu; |
131 | 131 | ||
132 | /* | 132 | /* |
133 | * We're using fixed IRQ delivery, can only return one phys APIC ID. | 133 | * We're using fixed IRQ delivery, can only return one logical APIC ID. |
134 | * May as well be the first. | 134 | * May as well be the first. |
135 | */ | 135 | */ |
136 | for_each_cpu_and(cpu, cpumask, andmask) | 136 | for_each_cpu_and(cpu, cpumask, andmask) |
137 | if (cpumask_test_cpu(cpu, cpu_online_mask)) | 137 | if (cpumask_test_cpu(cpu, cpu_online_mask)) |
138 | break; | 138 | break; |
139 | if (cpu < nr_cpu_ids) | 139 | if (cpu < nr_cpu_ids) |
140 | return per_cpu(x86_cpu_to_apicid, cpu); | 140 | return per_cpu(x86_cpu_to_logical_apicid, cpu); |
141 | return BAD_APICID; | 141 | return BAD_APICID; |
142 | } | 142 | } |
143 | 143 | ||