package/libdrm: amdgpu needs MMU

amdgpu test uses fork() so disable amdgpu without MMU

Fixes:
 - http://autobuild.buildroot.org/results/8d6194982c1080e173fcef8212fb06e6dc275d58

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libdrm/Config.in

@@ -36,6 +36,7 @@ config BR2_PACKAGE_LIBDRM_RADEON
 
 config BR2_PACKAGE_LIBDRM_AMDGPU
 	bool "amdgpu"
+	depends on BR2_USE_MMU # fork()
 	depends on BR2_PACKAGE_LIBDRM_HAS_ATOMIC
 	select BR2_PACKAGE_LIBDRM_ENABLE_ATOMIC
 	help

package/mesa3d/Config.in

@@ -125,6 +125,7 @@ comment "R600 driver needs a uClibc or glibc toolchain when llvm is enabled"
 
 config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_RADEONSI
 	bool "Gallium Radeon SI driver"
+	depends on BR2_USE_MMU # libdrm
 	depends on BR2_i386 || BR2_x86_64
 	depends on BR2_PACKAGE_MESA3D_LLVM
 	depends on BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC # elfutils
@@ -141,6 +142,7 @@ config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_RADEONSI
 # Radeon SI needs libelf
 # musl is not currently compatible with elfutils
 comment "Radeon SI driver needs a uClibc or glibc toolchain"
+	depends on BR2_USE_MMU
 	depends on BR2_PACKAGE_MESA3D_LLVM
 	depends on !(BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC)
 

package/x11r7/xdriver_xf86-video-amdgpu/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_XDRIVER_XF86_VIDEO_AMDGPU
 	bool "xf86-video-amdgpu"
+	depends on BR2_USE_MMU # libdrm
 	depends on BR2_PACKAGE_MESA3D_DRI_DRIVER
 	depends on BR2_PACKAGE_MESA3D_OPENGL_EGL # gbm
 	select BR2_PACKAGE_LIBDRM
@@ -11,5 +12,6 @@ config BR2_PACKAGE_XDRIVER_XF86_VIDEO_AMDGPU
 	  AMD GPU video driver
 
 comment "xf86-video-amdgpu needs egl/opengl support from mesa3d"
+	depends on BR2_USE_MMU
 	depends on !BR2_PACKAGE_MESA3D_OPENGL_EGL || \
 		!BR2_PACKAGE_MESA3D_DRI_DRIVER