nvidia.Kbuild

###########################################################################
# Kbuild fragment for nvidia.ko
###########################################################################

#
# Define NVIDIA_{SOURCES,OBJECTS}
#

include $(src)/nvidia/nvidia-sources.Kbuild
NVIDIA_OBJECTS = $(patsubst %.c,%.o,$(NVIDIA_SOURCES))

obj-m += nvidia.o
nvidia-y := $(NVIDIA_OBJECTS)

NVIDIA_KO = nvidia/nvidia.ko


#
# nv-kernel.o_binary is the core binary component of nvidia.ko, shared
# across all UNIX platforms. Create a symlink, "nv-kernel.o" that
# points to nv-kernel.o_binary, and add nv-kernel.o to the list of
# objects to link into nvidia.ko.
#
# Note that:
# - The kbuild "clean" rule will delete all objects in nvidia-y (which
# is why we use a symlink instead of just adding nv-kernel.o_binary
# to nvidia-y).
# - kbuild normally uses the naming convention of ".o_shipped" for
# binary files. That is not used here, because the kbuild rule to
# create the "normal" object file from ".o_shipped" does a copy, not
# a symlink. This file is quite large, so a symlink is preferred.
# - The file added to nvidia-y should be relative to gmake's cwd.
# But, the target for the symlink rule should be prepended with $(obj).
# - The "symlink" command is called using kbuild's if_changed macro to
# generate an .nv-kernel.o.cmd file which can be used on subsequent
# runs to determine if the command line to create the symlink changed
# and needs to be re-executed.
#

NVIDIA_BINARY_OBJECT := $(src)/nvidia/nv-kernel.o_binary
NVIDIA_BINARY_OBJECT_O := nvidia/nv-kernel.o

targets += $(NVIDIA_BINARY_OBJECT_O)

$(obj)/$(NVIDIA_BINARY_OBJECT_O): $(NVIDIA_BINARY_OBJECT) FORCE
	$(call if_changed,symlink)

nvidia-y += $(NVIDIA_BINARY_OBJECT_O)


#
# Define nvidia.ko-specific CFLAGS.
#

NVIDIA_CFLAGS += -I$(src)/nvidia
NVIDIA_CFLAGS += -DNVIDIA_UNDEF_LEGACY_BIT_MACROS

ifeq ($(NV_BUILD_TYPE),release)
 NVIDIA_CFLAGS += -UDEBUG -U_DEBUG -DNDEBUG
endif

ifeq ($(NV_BUILD_TYPE),develop)
 NVIDIA_CFLAGS += -UDEBUG -U_DEBUG -DNDEBUG -DNV_MEM_LOGGER
endif

ifeq ($(NV_BUILD_TYPE),debug)
 NVIDIA_CFLAGS += -DDEBUG -D_DEBUG -UNDEBUG -DNV_MEM_LOGGER
endif

$(call ASSIGN_PER_OBJ_CFLAGS, $(NVIDIA_OBJECTS), $(NVIDIA_CFLAGS))


#
# nv-procfs.c requires nv-compiler.h
#

NV_COMPILER_VERSION_HEADER = $(obj)/nv_compiler.h

$(NV_COMPILER_VERSION_HEADER):
	@echo \#define NV_COMPILER \"`$(CC) -v 2>&1 | tail -n 1`\" > $@

$(obj)/nvidia/nv-procfs.o: $(NV_COMPILER_VERSION_HEADER)

clean-files += $(NV_COMPILER_VERSION_HEADER)


#
# Build nv-interface.o from the kernel interface layer objects, suitable
# for further processing by the top-level makefile to produce a precompiled
# kernel interface file.
#

NVIDIA_INTERFACE := nvidia/nv-interface.o

# Linux kernel v5.12 and later looks at "always-y", Linux kernel versions 
# before v5.6 looks at "always"; kernel versions between v5.12 and v5.6
# look at both.

always += $(NVIDIA_INTERFACE)
always-y += $(NVIDIA_INTERFACE)

$(obj)/$(NVIDIA_INTERFACE): $(addprefix $(obj)/,$(NVIDIA_OBJECTS))
	$(LD) -r -o $@ $^


#
# Register the conftests needed by nvidia.ko
#

NV_OBJECTS_DEPEND_ON_CONFTEST += $(NVIDIA_OBJECTS)

NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_pages_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += list_is_first
NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_memory_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_memory_array_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_pages_array_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_cache
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_wc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_driver_hardened
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_driver_hardened_wc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_cache_shared
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pde_data
NV_CONFTEST_FUNCTION_COMPILE_TESTS += xen_ioemu_inject_msi
NV_CONFTEST_FUNCTION_COMPILE_TESTS += phys_to_dma
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_rebar_get_possible_sizes
NV_CONFTEST_FUNCTION_COMPILE_TESTS += get_backlight_device_by_name
NV_CONFTEST_FUNCTION_COMPILE_TESTS += dma_direct_map_resource
NV_CONFTEST_FUNCTION_COMPILE_TESTS += dev_is_dma_coherent
NV_CONFTEST_FUNCTION_COMPILE_TESTS += vmf_insert_pfn
NV_CONFTEST_FUNCTION_COMPILE_TESTS += jiffies_to_timespec
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ktime_get_raw_ts64
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_enable_atomic_ops_to_root
NV_CONFTEST_FUNCTION_COMPILE_TESTS += vga_tryget
NV_CONFTEST_FUNCTION_COMPILE_TESTS += cc_platform_has
NV_CONFTEST_FUNCTION_COMPILE_TESTS += cc_attr_guest_sev_snp
NV_CONFTEST_FUNCTION_COMPILE_TESTS += hv_get_isolation_type
NV_CONFTEST_FUNCTION_COMPILE_TESTS += seq_read_iter
NV_CONFTEST_FUNCTION_COMPILE_TESTS += follow_pfn
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ptep_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_gem_object_put_unlocked
NV_CONFTEST_FUNCTION_COMPILE_TESTS += add_memory_driver_managed
NV_CONFTEST_FUNCTION_COMPILE_TESTS += of_dma_configure
NV_CONFTEST_FUNCTION_COMPILE_TESTS += i2c_new_client_device
NV_CONFTEST_FUNCTION_COMPILE_TESTS += icc_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_of_icc_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += icc_put
NV_CONFTEST_FUNCTION_COMPILE_TESTS += icc_set_bw
NV_CONFTEST_FUNCTION_COMPILE_TESTS += dma_buf_ops_has_map
NV_CONFTEST_FUNCTION_COMPILE_TESTS += dma_buf_ops_has_map_atomic
NV_CONFTEST_FUNCTION_COMPILE_TESTS += dma_buf_attachment_has_peer2peer
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_clk_bulk_get_all
NV_CONFTEST_FUNCTION_COMPILE_TESTS += get_task_ioprio
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mdev_set_iommu_device
NV_CONFTEST_FUNCTION_COMPILE_TESTS += offline_and_remove_memory
NV_CONFTEST_FUNCTION_COMPILE_TESTS += stack_trace
NV_CONFTEST_FUNCTION_COMPILE_TESTS += crypto_tfm_ctx_aligned
NV_CONFTEST_FUNCTION_COMPILE_TESTS += assign_str
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioasid_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mm_pasid_drop
NV_CONFTEST_FUNCTION_COMPILE_TESTS += iommu_sva_bind_device_has_drvdata_arg

NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_sme_active
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_swiotlb_map_sg_attrs
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_swiotlb_dma_ops
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present___close_fd
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_close_fd
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_pxm_to_node
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_screen_info
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_screen_info
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_i2c_bus_status
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tegra_fuse_control_read
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_pci_find_host_bridge
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tsec_comms_send_cmd
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tsec_comms_set_init_cb
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tsec_comms_clear_init_cb
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tsec_comms_alloc_mem_from_gscco
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tsec_comms_free_gscco_mem
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_memory_block_size_bytes
NV_CONFTEST_SYMBOL_COMPILE_TESTS += crypto
NV_CONFTEST_SYMBOL_COMPILE_TESTS += crypto_akcipher_verify
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_follow_pte
NV_CONFTEST_SYMBOL_COMPILE_TESTS += follow_pte_arg_vma
NV_CONFTEST_SYMBOL_COMPILE_TESTS += dma_buf_ops_attach_has_arg_dev
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_follow_pfnmap_start
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_pci_ats_supported
NV_CONFTEST_SYMBOL_COMPILE_TESTS += ecc_digits_from_bytes
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_set_memory_encrypted
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_set_memory_decrypted
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl___platform_driver_register
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present___platform_driver_register
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_hrtimer_setup
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_mutex_destroy
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_timer_delete_sync
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl___vma_start_write
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_iommu_dev_enable_feature
NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_gpl_iommu_dev_disable_feature

NV_CONFTEST_TYPE_COMPILE_TESTS += vmf_insert_pfn_prot
NV_CONFTEST_TYPE_COMPILE_TESTS += sysfs_slab_unlink
NV_CONFTEST_TYPE_COMPILE_TESTS += proc_ops
NV_CONFTEST_TYPE_COMPILE_TESTS += vmalloc_has_pgprot_t_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += mm_has_mmap_lock
NV_CONFTEST_TYPE_COMPILE_TESTS += pci_channel_state
NV_CONFTEST_TYPE_COMPILE_TESTS += remove_memory_has_nid_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += add_memory_driver_managed_has_mhp_flags_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += num_registered_fb
NV_CONFTEST_TYPE_COMPILE_TESTS += pci_driver_has_driver_managed_dma
NV_CONFTEST_TYPE_COMPILE_TESTS += vm_area_struct_has_const_vm_flags
NV_CONFTEST_TYPE_COMPILE_TESTS += memory_failure_queue_has_trapno_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += foll_longterm_present
NV_CONFTEST_TYPE_COMPILE_TESTS += bus_type_has_iommu_ops
NV_CONFTEST_TYPE_COMPILE_TESTS += of_property_for_each_u32_has_internal_args
NV_CONFTEST_TYPE_COMPILE_TESTS += platform_driver_struct_remove_returns_void
NV_CONFTEST_TYPE_COMPILE_TESTS += class_create_has_no_owner_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += class_devnode_has_const_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += devfreq_has_freq_table
NV_CONFTEST_TYPE_COMPILE_TESTS += has_enum_pidtype_tgid

NV_CONFTEST_GENERIC_COMPILE_TESTS += dom0_kernel_present
NV_CONFTEST_GENERIC_COMPILE_TESTS += nvidia_vgpu_kvm_build
NV_CONFTEST_GENERIC_COMPILE_TESTS += nvidia_grid_build
NV_CONFTEST_GENERIC_COMPILE_TESTS += nvidia_grid_csp_build
NV_CONFTEST_GENERIC_COMPILE_TESTS += get_user_pages
NV_CONFTEST_GENERIC_COMPILE_TESTS += get_user_pages_remote
NV_CONFTEST_GENERIC_COMPILE_TESTS += pin_user_pages
NV_CONFTEST_GENERIC_COMPILE_TESTS += pin_user_pages_remote
NV_CONFTEST_GENERIC_COMPILE_TESTS += pm_runtime_available
NV_CONFTEST_GENERIC_COMPILE_TESTS += vm_fault_t
NV_CONFTEST_GENERIC_COMPILE_TESTS += pci_class_multimedia_hd_audio
NV_CONFTEST_GENERIC_COMPILE_TESTS += drm_available
NV_CONFTEST_GENERIC_COMPILE_TESTS += vfio_pci_core_available
NV_CONFTEST_GENERIC_COMPILE_TESTS += cmd_uphy_display_port_init
NV_CONFTEST_GENERIC_COMPILE_TESTS += cmd_uphy_display_port_off
NV_CONFTEST_GENERIC_COMPILE_TESTS += memory_failure_mf_sw_simulated_defined
NV_CONFTEST_GENERIC_COMPILE_TESTS += device_vm_build
NV_CONFTEST_GENERIC_COMPILE_TESTS += pcie_reset_flr
NV_CONFTEST_GENERIC_COMPILE_TESTS += module_import_ns_takes_constant