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path: root/drivers/gpu/drm/xe/xe_gt_freq.c
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Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_freq.c')
-rw-r--r--drivers/gpu/drm/xe/xe_gt_freq.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_freq.c b/drivers/gpu/drm/xe/xe_gt_freq.c
index 868a5d2c1a52..60d9354e7dbf 100644
--- a/drivers/gpu/drm/xe/xe_gt_freq.c
+++ b/drivers/gpu/drm/xe/xe_gt_freq.c
@@ -32,13 +32,18 @@
* Xe's Freq provides a sysfs API for frequency management:
*
* device/tile#/gt#/freq0/<item>_freq *read-only* files:
+ *
* - act_freq: The actual resolved frequency decided by PCODE.
* - cur_freq: The current one requested by GuC PC to the PCODE.
* - rpn_freq: The Render Performance (RP) N level, which is the minimal one.
+ * - rpa_freq: The Render Performance (RP) A level, which is the achiveable one.
+ * Calculated by PCODE at runtime based on multiple running conditions
* - rpe_freq: The Render Performance (RP) E level, which is the efficient one.
+ * Calculated by PCODE at runtime based on multiple running conditions
* - rp0_freq: The Render Performance (RP) 0 level, which is the maximum one.
*
* device/tile#/gt#/freq0/<item>_freq *read-write* files:
+ *
* - min_freq: Min frequency request.
* - max_freq: Max frequency request.
* If max <= min, then freq_min becomes a fixed frequency request.