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authorDave Airlie <airlied@redhat.com>2025-05-29 07:43:02 +1000
committerDave Airlie <airlied@redhat.com>2025-05-29 07:43:10 +1000
commit84e2f918550e1063bd8e29faffe8ad491b7d8c52 (patch)
tree7a719d5fe83e967440468f0b52223f5e534e8c32
parent58ce2aec57a5d8a2e678bf184f043047340c787e (diff)
parent40493d97b329f8185c0f04dc0ef2b9ffc58e7f3b (diff)
Merge tag 'drm-xe-next-fixes-2025-05-28' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
Driver Changes: - Two documentation fixes (Rodrigo) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com> Link: https://lore.kernel.org/r/aDc4Is-sQb3DPGO5@fedora
-rw-r--r--Documentation/gpu/xe/index.rst1
-rw-r--r--Documentation/gpu/xe/xe_gt_freq.rst14
-rw-r--r--drivers/gpu/drm/xe/xe_gt_freq.c5
3 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/gpu/xe/index.rst b/Documentation/gpu/xe/index.rst
index b2369561f24e..42ba6c263cd0 100644
--- a/Documentation/gpu/xe/index.rst
+++ b/Documentation/gpu/xe/index.rst
@@ -16,6 +16,7 @@ DG2, etc is provided to prototype the driver.
xe_migrate
xe_cs
xe_pm
+ xe_gt_freq
xe_pcode
xe_gt_mcr
xe_wa
diff --git a/Documentation/gpu/xe/xe_gt_freq.rst b/Documentation/gpu/xe/xe_gt_freq.rst
new file mode 100644
index 000000000000..c0811200e327
--- /dev/null
+++ b/Documentation/gpu/xe/xe_gt_freq.rst
@@ -0,0 +1,14 @@
+.. SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+==========================
+Xe GT Frequency Management
+==========================
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_gt_freq.c
+ :doc: Xe GT Frequency Management
+
+Internal API
+============
+
+.. kernel-doc:: drivers/gpu/drm/xe/xe_gt_freq.c
+ :internal:
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.