gpu: host1x: Add debug support

Add support for host1x debugging. Adds debugfs entries, and dumps
channel state to UART in case of stuck job.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

diff --cc drivers/gpu/host1x/Makefile
Simple merge

diff --cc drivers/gpu/host1x/cdma.c
Simple merge

diff --cc drivers/gpu/host1x/debug.c
Simple merge

diff --cc drivers/gpu/host1x/debug.h
Simple merge

diff --cc drivers/gpu/host1x/dev.c
Simple merge

diff --cc drivers/gpu/host1x/dev.h
Simple merge

diff --cc drivers/gpu/host1x/hw/cdma_hw.c
Simple merge

diff --cc drivers/gpu/host1x/hw/channel_hw.c
Simple merge

diff --cc drivers/gpu/host1x/hw/debug_hw.c
Simple merge

diff --cc drivers/gpu/host1x/hw/host1x01.c
Simple merge

diff --cc drivers/gpu/host1x/hw/hw_host1x01_channel.h
Simple merge

diff --cc drivers/gpu/host1x/hw/hw_host1x01_sync.h
Simple merge

diff --cc drivers/gpu/host1x/hw/hw_host1x01_uclass.h
Simple merge

diff --cc drivers/gpu/host1x/hw/syncpt_hw.c
Simple merge

diff --cc drivers/gpu/host1x/syncpt.c
Simple merge