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lines changed Original file line number Diff line number Diff line change @@ -16,6 +16,7 @@ DG2, etc is provided to prototype the driver.
1616 xe_migrate
1717 xe_cs
1818 xe_pm
19+ xe_gt_freq
1920 xe_pcode
2021 xe_gt_mcr
2122 xe_wa
Original file line number Diff line number Diff line change 1+ .. SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2+
3+ ==========================
4+ Xe GT Frequency Management
5+ ==========================
6+
7+ .. kernel-doc :: drivers/gpu/drm/xe/xe_gt_freq.c
8+ :doc: Xe GT Frequency Management
9+
10+ Internal API
11+ ============
12+
13+ .. kernel-doc :: drivers/gpu/drm/xe/xe_gt_freq.c
14+ :internal:
Original file line number Diff line number Diff line change 3232 * Xe's Freq provides a sysfs API for frequency management:
3333 *
3434 * device/tile#/gt#/freq0/<item>_freq *read-only* files:
35+ *
3536 * - act_freq: The actual resolved frequency decided by PCODE.
3637 * - cur_freq: The current one requested by GuC PC to the PCODE.
3738 * - rpn_freq: The Render Performance (RP) N level, which is the minimal one.
39+ * - rpa_freq: The Render Performance (RP) A level, which is the achiveable one.
40+ * Calculated by PCODE at runtime based on multiple running conditions
3841 * - rpe_freq: The Render Performance (RP) E level, which is the efficient one.
42+ * Calculated by PCODE at runtime based on multiple running conditions
3943 * - rp0_freq: The Render Performance (RP) 0 level, which is the maximum one.
4044 *
4145 * device/tile#/gt#/freq0/<item>_freq *read-write* files:
46+ *
4247 * - min_freq: Min frequency request.
4348 * - max_freq: Max frequency request.
4449 * If max <= min, then freq_min becomes a fixed frequency request.
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