SRU: https://lists.ubuntu.com/archives/kernel-
team/2021-August/123678.html (linux-firmware:focal)
** Changed in: linux-firmware (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux-firmware (Ubuntu)
Status: New => Invalid
** Changed in: linux-firmware (Ubuntu Focal)
Importance: Undecided => High
** Changed in: linux-firmware (Ubuntu Focal)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Description changed:
+ [SRU Justification:linux-firmware]
+
+ [Impact]
+
+ It shows the firmware is missing, and runtime power management has been
+ disabled:
+
+ i915 0000:00:02.0: [drm] Failed to load DMC firmware
+ i915/adlp_dmc_ver2_10.bin. Disabling runtime power management.
+
+ [Fix]
+
+ Upstream commit 3d32f216 ("i915: Add ADL-P DMC Support").
+
+ [Test Case]
+
+ Verified on Intel ADL-M/ADL-P RVPs.
+
+ [Where problems could occur]
+
+ It's a new firmware for new GPU, not possible to introduce regressions.
+
+ [Other Info]
+
+ Impish has this already. And while ADL-P/M support begins since v5.14,
+ only focal (for oem-5.14) is being nominated.
+
+ =========================================================
+
+ [SRU Justification:mesa,libdrm]
+
NOTE: this is for focal only, hirsute/impish do not and will not have
kernel support for this.
[Impact]
ADL-P machines need to use the native driver.
[Fix]
Backport support from upstream.
libdrm: a single patch from 2.4.107
mesa: three commits to add pci-id's and a workaround
kernel: needs drm sync from 5.14 (bug 1940085) plus additional backports
[Test case]
Boot a machine and check that it's using the native driver and that the usual
workloads are fine.
[Where things could go wrong]
For older gpu's there's little to go wrong, since the commits are for ADL-P
only.
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https://bugs.launchpad.net/bugs/1940504
Title:
Support Alder Lake P graphics
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