package/mesa3d: add option to build kmsro and zink Gallium drivers

This allows using simple displays not directly connected to the GPU,
and platforms supported only via Vulkan.

Signed-off-by: Fiona Klute (WIWA) <fiona.klute@gmx.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/mesa3d/Config.in

@@ -140,6 +140,18 @@ config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_LIMA
 	help
 	  Mesa driver for ARM Mali Utgard GPUs.
 
+config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_KMSRO
+	bool "Gallium kmsro drivers"
+	depends on BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_ETNAVIV \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_FREEDRENO \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_LIMA \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_PANFROST \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_V3D \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VC4
+	select BR2_PACKAGE_MESA3D_GALLIUM_DRIVER
+	help
+	  Mesa drivers for kernel mode-setting render-only devices
+
 config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_NOUVEAU
 	bool "Gallium nouveau driver"
 	select BR2_PACKAGE_MESA3D_GALLIUM_DRIVER
@@ -262,6 +274,16 @@ config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VIRGL
 	  virgl is the 3D acceleration backend for the virtio-gpu
 	  shipping with qemu.
 
+config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_ZINK
+	bool "Gallium zink driver"
+	select BR2_PACKAGE_MESA3D_GALLIUM_DRIVER
+	select BR2_PACKAGE_MESA3D_VULKAN_DRIVER
+	select BR2_PACKAGE_VULKAN_LOADER
+	help
+	  Zink is a Gallium driver that emits Vulkan API calls,
+	  providing OpenGL support on devices that only support
+	  Vulkan.
+
 config BR2_PACKAGE_MESA3D_VDPAU
 	bool "Gallium VDPAU state tracker"
 	depends on BR2_PACKAGE_XORG7

package/mesa3d/mesa3d.mk

@@ -99,6 +99,7 @@ MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_FREEDRENO) += freedre
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_I915)     += i915
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_IRIS)     += iris
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_LIMA)     += lima
+MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_KMSRO)    += kmsro
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_NOUVEAU)  += nouveau
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_PANFROST) += panfrost
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_R300)     += r300
@@ -110,6 +111,7 @@ MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_TEGRA)    += tegra
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_V3D)      += v3d
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VC4)      += vc4
 MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VIRGL)    += virgl
+MESA3D_GALLIUM_DRIVERS-$(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_ZINK)     += zink
 # Vulkan Drivers
 MESA3D_VULKAN_DRIVERS-$(BR2_PACKAGE_MESA3D_VULKAN_DRIVER_BROADCOM) += broadcom
 MESA3D_VULKAN_DRIVERS-$(BR2_PACKAGE_MESA3D_VULKAN_DRIVER_INTEL)   += intel