An Ubuntu Kernel Spin Of AMDGPU DC "drm-next-4.15-dc"

[Masush5]

If someone needs it I backported the drm subsystem from drm-next-4.15-dc to linux-4.13.4: https://www.phoronix.com/forums/foru...419#post980419
I also uploaded a PKGBUILD to the AUR, if someone uses ArchLinux.

I did the same yesterday (except for the pkgbuild) and so far most of my issues with 4.12-amd-staging seem to be gone! Didn't test gnome on wayland again yet.

[Masush5]

I did the same yesterday (except for the pkgbuild) and so far most of my issues with 4.12-amd-staging seem to be gone! Didn't test gnome on wayland again yet.

Well, scratch that... after a bit more testing it turns out to be really unstable, screen starts turning on and off, error spam in dmesg and Xorg crashes (wayland completely broken).

[DarkFoss]

One of the more surprising changes in the dmesg is the 3/4 reduction in GART size.

$ uname -a
Linux Tardis-1 4.13.0-rc5-phx-drm-next-4.15-dc #1 SMP Thu Sep 28 15:38:32 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
$ dmesg | grep GART
[    2.341458] [drm] GART: num cpu pages 262144, num gpu pages 262144
[    2.341507] [drm] PCIE GART of 1024M enabled (table at 0x000000F400040000).
[    2.660395] [drm] GART: num cpu pages 262144, num gpu pages 262144
[    2.660431] [drm] PCIE GART of 1024M enabled (table at 0x000000F400040000).

verses stock ubuntu

$ uname -a 
Linux Tardis-1 4.13.0-12-generic #13-Ubuntu SMP Sat Sep 23 03:40:16 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ dmesg | grep GART
[    1.839143] [drm] GART: num cpu pages 1048576, num gpu pages 1048576
[    1.840298] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000).
[    2.301027] [drm] GART: num cpu pages 1048576, num gpu pages 1048576
[    2.302208] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000).
[ 7867.266740] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000).
[ 7867.590725] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000).
[10798.565821] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000).
[10798.889859] [drm] PCIE GART of 4096M enabled (table at 0x0000000000040000).