gpu: host1x: Add channel support

Add support for host1x client modules, and host1x channels to submit
work to the clients.

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>

drivers/gpu/host1x/Kconfig

@@ -8,3 +8,15 @@ config TEGRA_HOST1X
 	  Tegra's graphics- and multimedia-related modules. The modules served
 	  by host1x are referred to as clients. host1x includes some other
 	  functionality, such as synchronization.
+
+if TEGRA_HOST1X
+
+config TEGRA_HOST1X_FIREWALL
+	bool "Enable HOST1X security firewall"
+	default y
+	help
+	  Say yes if kernel should protect command streams from tampering.
+
+	  If unsure, choose Y.
+
+endif

drivers/gpu/host1x/Makefile

@@ -4,6 +4,9 @@ host1x-y = \
 	syncpt.o \
 	dev.o \
 	intr.o \
+	cdma.o \
+	channel.o \
+	job.o \
 	hw/host1x01.o
 
 obj-$(CONFIG_TEGRA_HOST1X) += host1x.o