-
Hanjun Guo authored
Introduce a new function map_gicc_mpidr() to allow MPIDRs to be obtained from the GICC Structure introduced by ACPI 5.1, since MPIDR for ARM64 is 64-bit, so typedef u64 for phys_cpuid_t. The ARM architecture defines the MPIDR register as the CPU hardware identifier. This patch adds the code infrastructure to retrieve the MPIDR values from the ARM ACPI GICC structure in order to look-up the kernel CPU hardware ids required by the ACPI core code to identify CPUs. CC: Rafael J. Wysocki <rjw@rjwysocki.net> CC: Catalin Marinas <catalin.marinas@arm.com> CC: Will Deacon <will.deacon@arm.com> Tested-by:
Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Tested-by:
Yijing Wang <wangyijing@huawei.com> Tested-by:
Mark Langsdorf <mlangsdo@redhat.com> Tested-by:
Jon Masters <jcm@redhat.com> Tested-by:
Timur Tabi <timur@codeaurora.org> Tested-by:
Robert Richter <rrichter@cavium.com> Acked-by:
Robert Richter <rrichter@cavium.com> Acked-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by:
Grant Likely <grant.likely@linaro.org> Signed-off-by:
Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by:
Will Deacon <will.deacon@arm.com>
020295b4