[Bug 1940504] Re: Support Alder Lake P graphics

[You-Sheng Yang]

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

Status in libdrm package in Ubuntu:
  Fix Released
Status in linux-firmware package in Ubuntu:
  Invalid
Status in linux-oem-5.13 package in Ubuntu:
  Invalid
Status in mesa package in Ubuntu:
  Fix Released
Status in libdrm source package in Focal:
  Fix Committed
Status in linux-firmware source package in Focal:
  In Progress
Status in linux-oem-5.13 source package in Focal:
  New
Status in mesa source package in Focal:
  Fix Committed

Bug description:
  [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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