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authorJeremy Linton <jeremy.linton@arm.com>2019-06-26 16:37:17 -0500
committerWill Deacon <will@kernel.org>2019-06-27 16:53:42 +0100
commitd24a0c7099b32b6981d7f126c45348e381718350 (patch)
tree457f98ff0662d5de5fb64df10b5bc1bdf1f062a4 /drivers/perf/arm_spe_pmu.c
parent56855a99f3d0d1e9f1f4e24f5851f9bf14c83296 (diff)
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arm_pmu: acpi: spe: Add initial MADT/SPE probing
ACPI 6.3 adds additional fields to the MADT GICC structure to describe SPE PPI's. We pick these out of the cached reference to the madt_gicc structure similarly to the core PMU code. We then create a platform device referring to the IRQ and let the user/module loader decide whether to load the SPE driver. Tested-by: Hanjun Guo <hanjun.guo@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Will Deacon <will@kernel.org>
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