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authorDavid Daney <david.daney@cavium.com>2016-05-25 01:35:43 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-05-30 15:27:09 +0300
commitfb7c2bae8a479e388a1f664e32d6ddca55c7a249 (patch)
treee74d74293b1c067d1f63a5d91025e7ea34f688e4 /include/acpi
parente0af261a437db4f4b21478ac677ccca5fc0ec07e (diff)
downloadlinux-fb7c2bae8a479e388a1f664e32d6ddca55c7a249.tar.xz
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')
-rw-r--r--include/acpi/processor.h1
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);