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authorMario Limonciello <[email protected]>2024-09-03 14:43:10 -0500
committerMario Limonciello <[email protected]>2024-09-11 10:23:23 -0500
commit15a2b764ea7c16dd2b1ecfd86ba27809f5bd8580 (patch)
tree9baf6abef25ea176e795d17c0025ad8e8aba0ee4
parentb96b82d1af7fbf35e3c7d50368275005bd6b6a03 (diff)
amd-pstate: Add missing documentation for `amd_pstate_prefcore_ranking`
`amd_pstate_prefcore_ranking` reflects the dynamic rankings of a CPU core based on platform conditions. Explicitly include it in the documentation. Reviewed-by: Gautham R. Shenoy <[email protected]> Signed-off-by: Mario Limonciello <[email protected]>
-rw-r--r--Documentation/admin-guide/pm/amd-pstate.rst9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
index d5c050ea390d..210a808b74ec 100644
--- a/Documentation/admin-guide/pm/amd-pstate.rst
+++ b/Documentation/admin-guide/pm/amd-pstate.rst
@@ -252,7 +252,8 @@ In some ASICs, the highest CPPC performance is not the one in the ``_CPC``
table, so we need to expose it to sysfs. If boost is not active, but
still supported, this maximum frequency will be larger than the one in
``cpuinfo``. On systems that support preferred core, the driver will have
-different values for some cores than others.
+different values for some cores than others and this will reflect the values
+advertised by the platform at bootup.
This attribute is read-only.
``amd_pstate_lowest_nonlinear_freq``
@@ -268,6 +269,12 @@ This attribute is read-only.
Whether the platform supports the preferred core feature and it has been
enabled. This attribute is read-only.
+``amd_pstate_prefcore_ranking``
+
+The performance ranking of the core. This number doesn't have any unit, but
+larger numbers are preferred at the time of reading. This can change at
+runtime based on platform conditions. This attribute is read-only.
+
``energy_performance_available_preferences``
A list of all the supported EPP preferences that could be used for