@@ -48,4 +48,18 @@ config BR2_PACKAGE_NVIDIA_DRIVER_PRIVATE_LIBS
Say 'y' here if you plan on running a program that uses those
private libraries.
+comment "nvidia kernel module needs a kernel to be built"
+ depends on !BR2_LINUX_KERNEL
+
+config BR2_PACKAGE_NVIDIA_DRIVER_MODULE
+ bool "nvidia kernel module"
+ depends on BR2_LINUX_KERNEL
+ help
+ Build the nvidia.ko kernel module.
+
+ If CUDA support (above) is set, and the target is x86_64, then
+ this will also build the nvidia-uvm.ko kernel module, which
+ provides Unified Memory access to the GPU and CPU memories for
+ CUDA programs.
+
endif # BR2_PACKAGE_NVIDIA_DRIVER
@@ -65,6 +65,55 @@ define NVIDIA_DRIVER_EXTRACT_CMDS
rm -rf $(@D)/tmp-extract
endef
+# Build and install the kernel modules if needed
+ifeq ($(BR2_PACKAGE_NVIDIA_DRIVER_MODULE),y)
+
+NVIDIA_DRIVER_DEPENDENCIES += linux
+
+# NVidia uses the legacy naming scheme for the x86 architecture, when i386
+# and x86_64 were still considered two separate architectures in the Linux
+# kernel.
+NVIDIA_DRIVER_ARCH = $(if $(BR2_i386),i386,$(BR2_ARCH))
+
+NVIDIA_DRIVER_MOD_DIRS = kernel
+NVIDIA_DRIVER_MOD_FILES = kernel/nvidia.ko
+# nvidia-uvm.ko only available for x86_64
+ifeq ($(BR2_x86_64)$(BR2_PACKAGE_NVIDIA_DRIVER_CUDA),yy)
+NVIDIA_DRIVER_MOD_DIRS += kernel/uvm
+NVIDIA_DRIVER_MOD_FILES += kernel/uvm/nvidia-uvm.ko
+endif
+
+# We can not use '$(MAKE) -C $(@D)/$${dir}' because NVidia's uses its own
+# Makefile to build a kernel module, which includes a lot of assumptions
+# on where to find its own sub-Makefile fragments, and fails if make is
+# not run from the directory where the module's source files are. Hence
+# our little trick to cd in there first.
+# That's also the reason why we do not use LINUX_MAKE_FLAGS or the other
+# linux-specific variables, since NVidia's Makefile does not understand
+# them.
+define NVIDIA_DRIVER_BUILD_CMDS
+ for dir in $(NVIDIA_DRIVER_MOD_DIRS); do \
+ ( cd $(@D)/$${dir} && \
+ $(MAKE) SYSSRC=$(LINUX_DIR) SYSOUT=$(LINUX_DIR) \
+ CC=$(TARGET_CC) LD=$(TARGET_LD) HOSTCC=$(HOSTCC) \
+ ARCH=$(NVIDIA_DRIVER_ARCH) module ) || exit 1; \
+ done
+endef
+
+# We do not use module-install because NVidia's Makefile requires root.
+# Also, we do not install it in the expected location (in nvidia/ rather
+# than in kernel/drivers/video/ )
+define NVIDIA_DRIVER_INSTALL_KERNEL_MODULE
+ for mod in $(NVIDIA_DRIVER_MOD_FILES); do \
+ $(INSTALL) -D -m 0644 $(@D)/$${mod} \
+ $(TARGET_DIR)/lib/modules/$(LINUX_VERSION_PROBED)/nvidia/$${mod##*/} \
+ || exit 1; \
+ done
+ $(HOST_DIR)/sbin/depmod -a -b $(TARGET_DIR) $(LINUX_VERSION_PROBED)
+endef
+
+endif # BR2_PACKAGE_NVIDIA_DRIVER_MODULE == y
+
# Helper to install libraries
# $1: destination directory (target or staging)
#
@@ -106,6 +155,7 @@ define NVIDIA_DRIVER_INSTALL_TARGET_CMDS
$(INSTALL) -D -m 0644 $(@D)/$${m##*/} \
$(TARGET_DIR)/usr/lib/xorg/modules/$${m}; \
done
+ $(NVIDIA_DRIVER_INSTALL_KERNEL_MODULE)
endef
$(eval $(generic-package))
Add option to build the nvidia.ko module. If CUDA is enabled on x86_64, also build the nvidia-uvm.ko kernel module (for Unified Memory access), which is required by the CUDA user-land library. Substancially inspired by the corresponding Gentoo ebuild: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/x11-drivers/nvidia-drivers/nvidia-drivers-340.32.ebuild?revision=1.2&view=markup Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> --- package/nvidia-driver/Config.in | 14 ++++++++++ package/nvidia-driver/nvidia-driver.mk | 50 ++++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+)