[Bug 1863874] [NEW] Backport GetFB2 ioctl

[Timo Aaltonen]

Public bug reported:

We need this in order to re-enable intel CCS compression, which was
originally disabled in mesa to fix this bug:

https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1753776

GetFB2 was recently added to drm-misc, and should get upstream in 5.7,
but would be best to have it in focal and unstable kernel so that the
userland parts can be added.

** Affects: libdrm (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Timo Aaltonen (tjaalton)
         Status: Confirmed

** Affects: mesa (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
         Status: New

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: libdrm (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: xorg-server (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Timo Aaltonen (tjaalton)

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https://bugs.launchpad.net/bugs/1863874

Title:
  Backport GetFB2 ioctl

Status in libdrm package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in mesa package in Ubuntu:
  New
Status in xorg-server package in Ubuntu:
  New

Bug description:
  We need this in order to re-enable intel CCS compression, which was
  originally disabled in mesa to fix this bug:

  https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1753776

  GetFB2 was recently added to drm-misc, and should get upstream in 5.7,
  but would be best to have it in focal and unstable kernel so that the
  userland parts can be added.

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