When building with LPAE=y (64-bit dma_addr_t), the following warnings are seen:

drivers/gpu/host1x/hw/cdma_hw.c:57:3: warning: format '%x' expects
  argument of type 'unsigned int', but argument 5 has type 'dma_addr_t'

drivers/gpu/host1x/hw/debug_hw.c:167:10: warning: format '%x' expects
  argument of type 'unsigned int', but argument 3 has type 'dma_addr_t'

The agreed-to solution for this is upcast to u64 and using %llx.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>

This patch adds support for hardware syncpoint bases. This creates
a simple mechanism to stall the command FIFO until an operation is
completed.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Tegra114 uses a slightly updated version of host1x with an additional
syncpoint.

Signed-off-by: Thierry Reding <treding@nvidia.com>

This is slightly safer than adding -Idrivers/gpu/host1x to cflags-y.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Expose the buffer objects, syncpoint and channel functionality in the
public public header so that drivers can use them.

Signed-off-by: Thierry Reding <treding@nvidia.com>

In preparation to support host1x clients other than DRM, move this
header into a public location.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Most of the included files are either not required or already included
by some other header file.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Signed-off-by: Thierry Reding <treding@nvidia.com>

This patch merges host1x_syncpt_cpu_incr to host1x_syncpt_incr() as
they are in practise doing the same thing. host1x_syncpt_incr() is
also modified to return error codes. User space interface is modified
accordingly to pass return values.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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>