mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
synced 2024-12-03 21:24:21 +01:00
108 lines
3.6 KiB
Plaintext
108 lines
3.6 KiB
Plaintext
###########################################################################
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# Kbuild fragment for nvidia-modeset.ko
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###########################################################################
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#
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# Define NVIDIA_MODESET_{SOURCES,OBJECTS}
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#
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NVIDIA_MODESET_SOURCES = nvidia-modeset/nvidia-modeset-linux.c
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NVIDIA_MODESET_SOURCES += nvidia-modeset/nv-kthread-q.c
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NVIDIA_MODESET_OBJECTS = $(patsubst %.c,%.o,$(NVIDIA_MODESET_SOURCES))
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obj-m += nvidia-modeset.o
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nvidia-modeset-y := $(NVIDIA_MODESET_OBJECTS)
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NVIDIA_MODESET_KO = nvidia-modeset/nvidia-modeset.ko
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NV_KERNEL_MODULE_TARGETS += $(NVIDIA_MODESET_KO)
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#
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# nv-modeset-kernel.o_binary is the core binary component of nvidia-modeset.ko,
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# shared across all UNIX platforms. Create a symlink, "nv-modeset-kernel.o"
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# that points to nv-modeset-kernel.o_binary, and add nv-modeset-kernel.o to the
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# list of objects to link into nvidia-modeset.ko.
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#
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# Note that:
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# - The kbuild "clean" rule will delete all objects in nvidia-modeset-y (which
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# is why we use a symlink instead of just adding nv-modeset-kernel.o_binary
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# to nvidia-modeset-y).
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# - kbuild normally uses the naming convention of ".o_shipped" for
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# binary files. That is not used here, because the kbuild rule to
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# create the "normal" object file from ".o_shipped" does a copy, not
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# a symlink. This file is quite large, so a symlink is preferred.
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# - The file added to nvidia-modeset-y should be relative to gmake's cwd.
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# But, the target for the symlink rule should be prepended with $(obj).
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#
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NVIDIA_MODESET_BINARY_OBJECT := $(src)/nvidia-modeset/nv-modeset-kernel.o_binary
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NVIDIA_MODESET_BINARY_OBJECT_O := nvidia-modeset/nv-modeset-kernel.o
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quiet_cmd_symlink = SYMLINK $@
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cmd_symlink = ln -sf $< $@
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targets += $(NVIDIA_MODESET_BINARY_OBJECT_O)
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$(obj)/$(NVIDIA_MODESET_BINARY_OBJECT_O): $(NVIDIA_MODESET_BINARY_OBJECT) FORCE
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$(call if_changed,symlink)
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nvidia-modeset-y += $(NVIDIA_MODESET_BINARY_OBJECT_O)
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#
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# Define nvidia-modeset.ko-specific CFLAGS.
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#
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NVIDIA_MODESET_CFLAGS += -I$(src)/nvidia-modeset
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NVIDIA_MODESET_CFLAGS += -UDEBUG -U_DEBUG -DNDEBUG -DNV_BUILD_MODULE_INSTANCES=0
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# Some Android kernels prohibit driver use of filesystem functions like
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# filp_open() and kernel_read(). Disable the NVKMS_CONFIG_FILE_SUPPORTED
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# functionality that uses those functions when building for Android.
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PLATFORM_IS_ANDROID ?= 0
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ifeq ($(PLATFORM_IS_ANDROID),1)
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NVIDIA_MODESET_CFLAGS += -DNVKMS_CONFIG_FILE_SUPPORTED=0
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else
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NVIDIA_MODESET_CFLAGS += -DNVKMS_CONFIG_FILE_SUPPORTED=1
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endif
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$(call ASSIGN_PER_OBJ_CFLAGS, $(NVIDIA_MODESET_OBJECTS), $(NVIDIA_MODESET_CFLAGS))
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#
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# Build nv-modeset-interface.o from the kernel interface layer
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# objects, suitable for further processing by the installer and
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# inclusion as a precompiled kernel interface file.
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#
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NVIDIA_MODESET_INTERFACE := nvidia-modeset/nv-modeset-interface.o
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# Linux kernel v5.12 and later looks at "always-y", Linux kernel versions
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# before v5.6 looks at "always"; kernel versions between v5.12 and v5.6
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# look at both.
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always += $(NVIDIA_MODESET_INTERFACE)
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always-y += $(NVIDIA_MODESET_INTERFACE)
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$(obj)/$(NVIDIA_MODESET_INTERFACE): $(addprefix $(obj)/,$(NVIDIA_MODESET_OBJECTS))
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$(LD) -r -o $@ $^
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#
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# Register the conftests needed by nvidia-modeset.ko
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#
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NV_OBJECTS_DEPEND_ON_CONFTEST += $(NVIDIA_MODESET_OBJECTS)
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NV_CONFTEST_TYPE_COMPILE_TESTS += timespec64
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NV_CONFTEST_TYPE_COMPILE_TESTS += proc_ops
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += pde_data
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += timer_setup
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += list_is_first
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += ktime_get_real_ts64
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += ktime_get_raw_ts64
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += acpi_video_backlight_use_native
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