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intel_th: Add ACPI glue layer

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The Trace Hub devices now can be enumerated as ACPI devices, which
translates into "Host Debugger mode". There are two IDs: one for
PCH Trace Hub, and one for the uncore Trace Hub. These are expected
to stay the same across all platforms.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
This commit is contained in:
Alexander Shishkin
2017-08-23 09:59:55 +03:00
parent 282ffec565
commit ebc57e399b
3 changed files with 94 additions and 0 deletions
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12
drivers/hwtracing/intel_th/Kconfig
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@@ -25,6 +25,18 @@ config INTEL_TH_PCI
Say Y here to enable PCI Intel TH support.
config INTEL_TH_ACPI
tristate "Intel(R) Trace Hub ACPI controller"
depends on ACPI
help
Intel(R) Trace Hub may exist as an ACPI device. This option enables
support glue layer for ACPI-based Intel TH. This typically implies
'host debugger' mode, that is, the trace configuration and capture
is handled by an external debug host and corresponding controls will
not be available on the target.
Say Y here to enable ACPI Intel TH support.
config INTEL_TH_GTH
tristate "Intel(R) Trace Hub Global Trace Hub"
help