diff options
| author | Gu Zheng <[email protected]> | 2016-08-25 16:35:18 +0800 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2016-09-21 21:18:39 +0200 |
| commit | dc6db24d2476cd09c0ecf2b8d80313539f737a89 (patch) | |
| tree | a42cb20e94757560eeabaf8ebe800254e166e8b2 /include/linux | |
| parent | 8ad893faf2eaedb710a3073afbb5d569df2c3e41 (diff) | |
x86/acpi: Set persistent cpuid <-> nodeid mapping when booting
The whole patch-set aims at making cpuid <-> nodeid mapping persistent. So that,
when node online/offline happens, cache based on cpuid <-> nodeid mapping such as
wq_numa_possible_cpumask will not cause any problem.
It contains 4 steps:
1. Enable apic registeration flow to handle both enabled and disabled cpus.
2. Introduce a new array storing all possible cpuid <-> apicid mapping.
3. Enable _MAT and MADT relative apis to return non-present or disabled cpus' apicid.
4. Establish all possible cpuid <-> nodeid mapping.
This patch finishes step 4.
This patch set the persistent cpuid <-> nodeid mapping for all enabled/disabled
processors at boot time via an additional acpi namespace walk for processors.
[ tglx: Remove the unneeded exports ]
Signed-off-by: Gu Zheng <[email protected]>
Signed-off-by: Tang Chen <[email protected]>
Signed-off-by: Zhu Guihua <[email protected]>
Signed-off-by: Dou Liyang <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
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Cc: [email protected]
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Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c9a596b9535c..5b4f9accf96b 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -271,8 +271,11 @@ static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) /* Arch dependent functions for cpu hotplug support */ int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu); int acpi_unmap_cpu(int cpu); +int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ +void acpi_set_processor_mapping(void); + #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); #endif |