43 lines
1.8 KiB
Diff
43 lines
1.8 KiB
Diff
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From 2ed9874f6dcafcc2bee7a922af9e1d1c62dbeb18 Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <mario.limonciello@amd.com>
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Date: Thu, 5 Sep 2024 11:30:07 -0500
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Subject: amd-pstate: Add missing documentation for
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`amd_pstate_prefcore_ranking`
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`amd_pstate_prefcore_ranking` reflects the dynamic rankings of a CPU
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core based on platform conditions. Explicitly include it in the
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documentation.
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Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
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Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
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Reviewed-by: Gautham R. Shenoy <gautham.sheoy@amd.com>
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---
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Documentation/admin-guide/pm/amd-pstate.rst | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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--- a/Documentation/admin-guide/pm/amd-pstate.rst
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+++ b/Documentation/admin-guide/pm/amd-pstate.rst
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@@ -252,7 +252,8 @@ In some ASICs, the highest CPPC performa
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table, so we need to expose it to sysfs. If boost is not active, but
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still supported, this maximum frequency will be larger than the one in
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``cpuinfo``. On systems that support preferred core, the driver will have
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-different values for some cores than others.
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+different values for some cores than others and this will reflect the values
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+advertised by the platform at bootup.
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This attribute is read-only.
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``amd_pstate_lowest_nonlinear_freq``
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@@ -268,6 +269,12 @@ This attribute is read-only.
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Whether the platform supports the preferred core feature and it has been
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enabled. This attribute is read-only.
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+``amd_pstate_prefcore_ranking``
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+
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+The performance ranking of the core. This number doesn't have any unit, but
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+larger numbers are preferred at the time of reading. This can change at
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+runtime based on platform conditions. This attribute is read-only.
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+
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``energy_performance_available_preferences``
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A list of all the supported EPP preferences that could be used for
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