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| author |   David Daney <david.daney@cavium.com> | 2016-05-24 15:35:43 -0700 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-05-30 14:27:09 +0200 |
| commit | fb7c2bae8a479e388a1f664e32d6ddca55c7a249 (patch) | |
| tree | e74d74293b1c067d1f63a5d91025e7ea34f688e4 /include/acpi/processor.h | |
| parent | ACPI / NUMA: Improve SRAT error detection and add messages (diff) | |
| download | wireguard-linux-fb7c2bae8a479e388a1f664e32d6ddca55c7a249.tar.xz wireguard-linux-fb7c2bae8a479e388a1f664e32d6ddca55c7a249.zip | |
ACPI / processor: Add acpi_map_madt_entry()
Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
(before kmalloc is usable).
Add acpi_map_madt_entry() which, indirectly, uses
early_memremap()/early_memunmap() to access the table and parse out
the mpidr. The existing implementation of map_madt_entry() is
modified to take a pointer to the MADT as a parameter and the callers
adjusted.
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/processor.h')
| -rw-r--r-- | include/acpi/processor.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 6f1805dd5d3c..f473e6618339 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -309,6 +309,7 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit) /* in processor_core.c */ phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id); +phys_cpuid_t acpi_map_madt_entry(u32 acpi_id); int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id); int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); |