Hi Dave, Please pull this mini-series that allows ARC PGU to be used on simulation platforms like nSIM OSCI (AKA Linux Virtual Platform) or ARC VDK.
The series was published for review here https://lists.freedesktop.org/archives/dri-devel/2016-June/110647.html It is based on today's "drm-next" branch. Best regards, Alexey The following changes since commit 3c85f20a289d044f303f473ee6ab7502303fc3b0:  Merge tag 'omapdrm-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next (2016-06-09 12:20:11 +1000) are available in the git repository at:  https://github.com/foss-for-synopsys-dwc-arc-processors/linux.git topic-arcpgu-sim for you to fetch changes up to 830c6578481e3b8649261062dfc5b0ac3c9374f8:  ARC: [nsimosci] Enable ARC PGU on nSIM OSCI virtual platforms (2016-06-13 17:45:18 +0200) ---------------------------------------------------------------- Alexey Brodkin (2):       ARCv2: [vdk] Enable ARC PGU on HS38 VDK       ARC: [nsimosci] Enable ARC PGU on nSIM OSCI virtual platforms Ruud Derwig (1):       drm/arcpgu: Make ARC PGU usable on simulation platforms  arch/arc/boot/dts/nsimosci.dts             |  14 +++++++++++---  arch/arc/boot/dts/nsimosci_hs.dts          |  14 +++++++++++---  arch/arc/boot/dts/nsimosci_hs_idu.dts      |  14 +++++++++++---  arch/arc/boot/dts/vdk_axs10x_mb.dtsi       |  13 +++++++++----  arch/arc/boot/dts/vdk_hs38_smp.dts         |   2 +-  arch/arc/configs/nsimosci_defconfig        |   3 ++-  arch/arc/configs/nsimosci_hs_defconfig     |   3 ++-  arch/arc/configs/nsimosci_hs_smp_defconfig |   3 ++-  arch/arc/configs/vdk_hs38_smp_defconfig    |   7 ++-----  drivers/gpu/drm/arc/Makefile               |   2 +-  drivers/gpu/drm/arc/arcpgu.h               |   1 +  drivers/gpu/drm/arc/arcpgu_drv.c           |  15 ++++++++-------  drivers/gpu/drm/arc/arcpgu_sim.c           | 128 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++  13 files changed, 189 insertions(+), 30 deletions(-)  create mode 100644 drivers/gpu/drm/arc/arcpgu_sim.c