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d6caeafaa3
SMN access was bolted into amd_nb mostly as convenience. This has limitations though that require incurring tech debt to keep it working. Move SMN access to the newly introduced AMD Node driver. Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> # pdx86 Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> # PMF, PMC Link: https://lore.kernel.org/r/20241206161210.163701-11-yazen.ghannam@amd.com
35 lines
1.2 KiB
Text
35 lines
1.2 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# AMD PMC Driver
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#
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config AMD_PMC
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tristate "AMD SoC PMC driver"
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depends on ACPI && PCI && RTC_CLASS && AMD_NODE
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depends on SUSPEND
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select SERIO
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help
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The driver provides support for AMD Power Management Controller
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primarily responsible for S2Idle transactions that are driven from
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a platform firmware running on SMU. This driver also provides a debug
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mechanism to investigate the S2Idle transactions and failures.
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Say Y or M here if you have a notebook powered by AMD RYZEN CPU/APU.
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If you choose to compile this driver as a module the module will be
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called amd-pmc.
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config AMD_MP2_STB
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bool "AMD SoC MP2 STB function"
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depends on AMD_PMC
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default AMD_PMC
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help
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AMD MP2 STB function provides a data buffer used to log debug
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information about the system execution during S2Idle suspend/resume.
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A data buffer known as the STB (Smart Trace Buffer) is a circular
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buffer which is a low-level log for the SoC which is used to debug
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any hangs/stalls during S2Idle suspend/resume.
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Creates debugfs to get STB, a userspace daemon can access STB log of
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last S2Idle suspend/resume which can help to debug if hangs/stalls
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during S2Idle suspend/resume.
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