drm, plymouth, stage2, x11: initial feature drm

The drm feature solves the problem of creating a common entry
point for adding kernel drm modules for different package lists.
The need for allocation into a separate feature arose from one
parties to the need to make a switch between free and proprietary
NVIDIA driver, on the other, because of the need to add only drm
modules kernels for purposes such as use/stage2/kms and use/plymouth.

Also no more switch needed for RADEON, as only the free video driver
remains.

features.in/drm/README

@@ -0,0 +1,7 @@
+Фича drm решает задачу создания общей точки входа для
+добавления drm-модулей ядра для разных списков пакетов.
+Потребность выделения в отдельную фичу возникла с одной
+стороны в связи с необходимостью сделать переключатель
+между свободным и проприетарным драйвером NVIDIA,
+с другой из-за необходимости добавлять только drm-модули
+ядра в таких целях, как use/stage2/kms и use/plymouth.

features.in/drm/config.mk

@@ -0,0 +1,50 @@
+use/drm:
+	@$(call add_feature)
+	@$(call add,DRM_KMODULES,drm)
+	@$(call add,THE_KMODULES,$$(DRM_KMODULES))
+
+use/drm/ancient: use/drm
+	@$(call add,DRM_KMODULES,drm-ancient)
+
+use/drm/radeon: use/drm
+	@$(call add,DRM_KMODULES,drm-radeon)
+
+use/drm/nouveau: use/drm
+	@$(call try,NVIDIA_KMODULES,drm-nouveau)
+	@$(call add,DRM_KMODULES,$$(NVIDIA_KMODULES))
+
+use/drm/nvidia:: use/drm/nouveau; @:
+use/drm/nvidia/optimus:: use/drm/nvidia; @:
+
+ifeq (,$(filter-out i586 x86_64 aarch64,$(ARCH)))
+use/drm/nvidia::
+	@$(call set,NVIDIA_KMODULES,nvidia)
+
+use/drm/nvidia/optimus::
+	@$(call add,NVIDIA_KMODULES,bbswitch)
+endif
+
+use/drm/full: use/drm/ancient use/drm/radeon \
+	use/drm/nouveau; @:
+
+use/drm/stage2:
+	@$(call add,STAGE1_DRM_KMODULES,drm)
+	@$(call add,STAGE1_KMODULES,$$(STAGE1_DRM_KMODULES))
+
+use/drm/stage2/ancient: use/drm/stage2
+	@$(call add,STAGE1_DRM_KMODULES,drm-ancient)
+
+use/drm/stage2/radeon: use/drm/stage2
+	@$(call add,STAGE1_DRM_KMODULES,drm-radeon)
+
+use/drm/stage2/nouveau: use/drm/stage2
+	@$(call try,STAGE1_NVIDIA_KMODULES,drm-nouveau)
+	@$(call add,STAGE1_DRM_KMODULES,$$(STAGE1_NVIDIA_KMODULES))
+
+use/drm/stage2/nvidia: use/drm/stage2/nouveau; @:
+ifeq (,$(filter-out i586 x86_64 aarch64,$(ARCH)))
+	@$(call set,STAGE1_NVIDIA_KMODULES,nvidia)
+endif
+
+use/drm/stage2/full: use/drm/stage2/ancient use/drm/stage2/radeon \
+	use/drm/stage2/nouveau; @:

features.in/plymouth/config.mk

@@ -36,12 +36,12 @@ else
 use/plymouth/vm: use/plymouth; @:
 endif
 
-use/plymouth/base: use/plymouth/stage2 use/plymouth/vm
+use/plymouth/base: use/plymouth/stage2 use/plymouth/vm \
+	use/drm/full; @:
 ifeq (distro,$(IMAGE_CLASS))
 	@$(call add,INSTALL2_PACKAGES,installer-feature-setup-plymouth)
 endif
 	@$(call add,BASE_PACKAGES_REGEXP,make-initrd-plymouth cpio)
-	@$(call add,BASE_KMODULES_REGEXP,drm.*)
 	@$(call add,THE_BRANDING,bootsplash)
 	@$(call add,THE_PACKAGES,make-initrd-plymouth)
 

features.in/stage2/config.mk

@@ -11,7 +11,7 @@ use/stage2: sub/stage1
 use/stage2/ata use/stage2/drm use/stage2/fs use/stage2/hid use/stage2/md \
 	use/stage2/mmc use/stage2/net use/stage2/net-cifs use/stage2/net-nfs \
 	use/stage2/pcmcia use/stage2/rtc use/stage2/scsi use/stage2/usb \
-	use/stage2/virtio: \
+	use/stage2/virtio use/stage2/nvidia: \
 	use/stage2/%: use/stage2
 	@$(call add,STAGE1_MODLISTS,stage2-$*)
 
@@ -21,8 +21,10 @@ ifeq (,$(filter-out aarch64,$(ARCH)))
 endif
 	@:
 
-use/stage2/kms: use/stage2/drm
+use/stage2/kms: use/stage2/drm use/drm/stage2/full; @:
-	@$(call add,STAGE1_KMODULES_REGEXP,drm.*)
+
+use/stage2/kms/nvidia: use/stage2/kms use/stage2/nvidia \
+	use/drm/stage2/nvidia; @:
 
 # install mount.cifs to stage1
 # NB: there's builtin nfsmount there, no reason for nfs-utils

features.in/stage2/stage1/modules.d/50-stage2-nvidia

@@ -0,0 +1 @@
+nVidia

features.in/x11/config.mk

@@ -5,19 +5,16 @@
 
 ## hardware support
 # the very minimal driver set
-use/x11:
+use/x11: use/drm
 	@$(call add_feature)
 	@$(call add,THE_LISTS,$(call tags,base xorg))
-	@$(call add,THE_KMODULES,drm)	# required by recent nvidia.ko as well
-	@$(call add,THE_KMODULES,$$(NVIDIA_KMODULES) $$(RADEON_KMODULES))
-	@$(call add,THE_PACKAGES,$$(NVIDIA_PACKAGES) $$(RADEON_PACKAGES))
 
 use/x11/xorg:: use/x11 use/x11/armsoc; @:
 
 # x86: free drivers for various hardware (might lack acceleration)
 ifeq (,$(filter-out i586 x86_64 aarch64,$(ARCH)))
 use/x11/xorg:: use/x11/intel use/x11/nouveau use/x11/radeon use/x11/amdgpu \
-	use/x11/armsoc
+	use/drm/full
 	@$(call add,THE_LISTS,$(call tags,desktop xorg))
 endif
 
@@ -38,7 +35,7 @@ endif
 
 ifeq (,$(filter-out e2k%,$(ARCH)))
 # e2k: mostly radeon, 101 got mga2/vivante
-use/x11/xorg:: use/x11/radeon use/x11/amdgpu use/x11/nouveau
+use/x11/xorg:: use/x11/radeon use/x11/amdgpu use/x11/nouveau use/drm/full
 
 ifeq (,$(filter-out e2kv4,$(ARCH)))
 use/x11/mga2: use/x11
@@ -59,18 +56,18 @@ endif
 use/x11/3d: use/x11/intel use/x11/nvidia/optimus use/x11/radeon; @:
 
 # somewhat lacking compared to radeon but still
-use/x11/nouveau: use/x11 use/firmware
+use/x11/nouveau: use/x11 use/firmware use/drm/nouveau
-	@$(call set,NVIDIA_KMODULES,drm-nouveau)
+	@$(call try,NVIDIA_PACKAGES,xorg-drv-nouveau)
-	@$(call set,NVIDIA_PACKAGES,xorg-drv-nouveau)
+	@$(call add,THE_PACKAGES,$$(NVIDIA_PACKAGES))
 
 # has performance problems but is getting better, just not there yet
-use/x11/radeon: use/x11 use/firmware
+use/x11/radeon: use/x11 use/firmware use/drm/radeon
-	@$(call set,RADEON_KMODULES,drm-radeon)
+	@$(call try,RADEON_PACKAGES,xorg-drv-ati xorg-drv-radeon)
-	@$(call add,RADEON_PACKAGES,xorg-drv-ati xorg-drv-radeon)
+	@$(call add,THE_PACKAGES,$$(RADEON_PACKAGES))
 
 # here's the future
 use/x11/amdgpu: use/x11 use/firmware
-	@$(call add,RADEON_PACKAGES,xorg-drv-amdgpu)
+	@$(call add,THE_PACKAGES,xorg-drv-amdgpu)
 
 # Vulkan is new and bleeding edge, only intel and amgpu(pro?)
 use/x11/vulkan: use/x11/intel use/x11/amdgpu
@@ -82,13 +79,16 @@ use/x11/glvnd: use/x11
 	@$(call add,THE_PACKAGES,libglvnd-glx,libglvnd-egl)
 
 # sometimes broken with current xorg-server
-use/x11/nvidia: use/x11
+use/x11/nvidia:: use/x11/nouveau; @:
-	@$(call set,NVIDIA_KMODULES,nvidia)
+use/x11/nvidia/optimus:: use/x11/nvidia; @:
+
+ifeq (,$(filter-out i586 x86_64 aarch64,$(ARCH)))
+use/x11/nvidia:: use/drm/nvidia
 	@$(call set,NVIDIA_PACKAGES,nvidia-settings nvidia-xconfig)
 
-use/x11/nvidia/optimus: use/x11/nvidia
+use/x11/nvidia/optimus:: use/drm/nvidia/optimus
-	@$(call add,THE_KMODULES,bbswitch)
+	@$(call add,NVIDIA_PACKAGES,bumblebee primus)
-	@$(call add,THE_PACKAGES,bumblebee primus)
+endif
 
 use/x11/wacom: use/x11
 	@$(call add,THE_PACKAGES,xorg-drv-wacom)