2022-05-09 22:18:59 +02:00
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###########################################################################
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# Kbuild fragment for nvidia-peermem.ko
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###########################################################################
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#
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# Define NVIDIA_PEERMEM_{SOURCES,OBJECTS}
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#
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NVIDIA_PEERMEM_SOURCES =
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NVIDIA_PEERMEM_SOURCES += nvidia-peermem/nvidia-peermem.c
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NVIDIA_PEERMEM_OBJECTS = $(patsubst %.c,%.o,$(NVIDIA_PEERMEM_SOURCES))
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obj-m += nvidia-peermem.o
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nvidia-peermem-y := $(NVIDIA_PEERMEM_OBJECTS)
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NVIDIA_PEERMEM_KO = nvidia-peermem/nvidia-peermem.ko
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NV_KERNEL_MODULE_TARGETS += $(NVIDIA_PEERMEM_KO)
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#
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# Define nvidia-peermem.ko-specific CFLAGS.
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#
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NVIDIA_PEERMEM_CFLAGS += -I$(src)/nvidia-peermem
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NVIDIA_PEERMEM_CFLAGS += -UDEBUG -U_DEBUG -DNDEBUG -DNV_BUILD_MODULE_INSTANCES=0
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#
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# In case of MOFED installation, nvidia-peermem compilation
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# needs paths to the MOFED headers in CFLAGS.
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# MOFED's Module.symvers is needed for the build
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# to find the additional ib_* symbols.
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#
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2022-11-10 17:39:33 +01:00
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# Also, MOFED doesn't use kbuild ARCH names.
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# So adapt OFA_ARCH to match MOFED's conventions.
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#
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ifeq ($(ARCH), arm64)
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OFA_ARCH := aarch64
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else ifeq ($(ARCH), powerpc)
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OFA_ARCH := ppc64le
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else
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OFA_ARCH := $(ARCH)
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endif
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2022-05-09 22:18:59 +02:00
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OFA_DIR := /usr/src/ofa_kernel
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2022-11-10 17:39:33 +01:00
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OFA_CANDIDATES = $(OFA_DIR)/$(OFA_ARCH)/$(KERNELRELEASE) $(OFA_DIR)/$(KERNELRELEASE) $(OFA_DIR)/default /var/lib/dkms/mlnx-ofed-kernel
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2022-05-09 22:18:59 +02:00
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MLNX_OFED_KERNEL := $(shell for d in $(OFA_CANDIDATES); do \
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if [ -d "$$d" ]; then \
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echo "$$d"; \
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exit 0; \
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fi; \
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done; \
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echo $(OFA_DIR) \
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)
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ifneq ($(shell test -d $(MLNX_OFED_KERNEL) && echo "true" || echo "" ),)
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NVIDIA_PEERMEM_CFLAGS += -I$(MLNX_OFED_KERNEL)/include -I$(MLNX_OFED_KERNEL)/include/rdma
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KBUILD_EXTRA_SYMBOLS := $(MLNX_OFED_KERNEL)/Module.symvers
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endif
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$(call ASSIGN_PER_OBJ_CFLAGS, $(NVIDIA_PEERMEM_OBJECTS), $(NVIDIA_PEERMEM_CFLAGS))
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#
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# Register the conftests needed by nvidia-peermem.ko
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#
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NV_OBJECTS_DEPEND_ON_CONFTEST += $(NVIDIA_PEERMEM_OBJECTS)
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NV_CONFTEST_GENERIC_COMPILE_TESTS += ib_peer_memory_symbols
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NV_CONFTEST_FUNCTION_COMPILE_TESTS +=
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NV_CONFTEST_TYPE_COMPILE_TESTS +=
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