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bperez77 / xilinx_axidma

A zero-copy Linux driver and a userspace interface library for Xilinx's AXI DMA and VDMA IP blocks. These serve as bridges for communication between the processing system and FPGA programmable logic fabric, through one of the DMA ports on the Zynq processing system. Distributed under the MIT License.
MIT License
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Cross compile error #103

Closed kimanha closed 5 years ago

kimanha commented 5 years ago

Hello,

I have compile errors with the latest buildboot and xilinx linux kernel version. Does anyone can advice how to fix it.

bpmlab2 ~/xilinx/kiman/test/xilinx_axidma $ make CROSS_COMPILE=/home/bpmlab2/xilinx/linux/buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabihf- ARCH=arm KBUILD_DIR=/home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1 driver make -C /home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1 M=/home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver modules make[1]: Entering directory '/home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1' CC [M] /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.o /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.c:97:34: error: array type has incomplete element type ‘struct of_device_id’ static const struct of_device_id axidma_compatible_of_ids[] = { ^~~~~~~~ /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.c:98:7: error: field name not in record or union initializer { .compatible = "xlnx,axidma-chrdev" }, ^ /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.c:98:7: note: (near initialization for ‘axidma_compatible_of_ids’) /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.c:97:34: error: ‘axidma_compatible_of_ids’ defined but not used [-Werror=unused-variable] static const struct of_device_id axidma_compatible_of_ids[] = { ^~~~~~~~ cc1: all warnings being treated as errors scripts/Makefile.build:305: recipe for target '/home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.o' failed make[2]: [/home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axi_dma.o] Error 1 Makefile:1517: recipe for target 'module/home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver' failed make[1]: [module/home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver] Error 2 make[1]: Leaving directory '/home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1' driver/driver.mk:75: recipe for target 'driver/axidma.ko' failed make: *** [driver/axidma.ko] Error 2

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shuai132 commented 5 years ago

I'm using v2019.1 too, and got same issue. Just #include <linux/of_address.h> in driver/axi_dma.c will be works! By the way, you'll need fix axidma_chrdev.c at 277 lines, add true/false as third param. like: of_dma_configure(dev->device, NULL, true) ;

kimanha commented 5 years ago

Thanks! now it compiled.

bpmlab2 ~/xilinx/kiman/test/xilinx_axidma $ make CROSS_COMPILE=/home/bpmlab2/xilinx/linux/buildroot/output/host/usr/bin/arm-buildroot-linux-gnueabihf- ARCH=arm KBUILD_DIR=/home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1 driver make -C /home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1 M=/home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver modules make[1]: Entering directory '/home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1' CC [M] /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axidma_chrdev.o CC [M] /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axidma_dma.o CC [M] /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axidma_of.o LD [M] /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axidma.o Building modules, stage 2. MODPOST 1 modules CC /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axidma.mod.o LD [M] /home/bpmlab2/xilinx/kiman/test/xilinx_axidma/driver/axidma.ko make[1]: Leaving directory '/home/bpmlab2/xilinx/linux/buildroot/output/build/linux-xilinx-v2019.1'

vipals commented 5 years ago

FYI: https://patchwork.ozlabs.org/patch/1169887/