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authorCatalin Marinas2015-03-24 14:02:46 +0000
committerWill Deacon2015-03-26 15:12:51 +0000
commit828aef376d7a129547bc4ebb949965040177e3da (patch)
treef4fd8bf12e062dfd646b139466e781d3d67c7c6b /include/rdma
parentfccb9a81fd08b61bed91ddef88341694f8ecbfd1 (diff)
ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID
CPU hardware ID (phys_id) is defined as u32 in structure acpi_processor, but phys_id is used as int in acpi processor driver, so it will lead to some inconsistence for the drivers. Furthermore, to cater for ACPI arch ports that implement 64 bits CPU ids a generic CPU physical id type is required. So introduce typedef u32 phys_cpuid_t in a common file, and introduce a macro PHYS_CPUID_INVALID as (phys_cpuid_t)(-1) if it's not defined by other archs, this will solve the inconsistence in acpi processor driver, and will prepare for the ACPI on ARM64 for the 64 bit CPU hardware ID in the following patch. CC: Rafael J Wysocki <rjw@rjwysocki.net> Suggested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Grant Likely <grant.likely@linaro.org> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> [hj: reworked cpu physid map return codes] Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
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