PCIe-XDMA(DMA Subsystem for PCIe) 是 Xilinx 提供给 FPGA 开发者的一种免费的、便于使用的 PCIe 通信 IP 核。图1是PCIe-XDMA应用的典型的系统框图,PCIe-XDMA IP核的一端是 PCIe 接口,通过 FPGA 芯片的引脚连接到 Host-PC 的主板的 PCIe 插槽上;另一端是一个 AXI4-Master Port ,可以连接到 AXI slave ...
设置后,HDMI显示器会显示蓝屏。 root@vcu_llp2_xv20:~#modetest-Da00c0000.v_mix-s35:1920x1080-30@BG24settingmode1920x1080-30Hz@BG24onconnectors35,crtc33[ 254.364908]---[ cut here ]---[ 254.369527]driverforgottocalldrm_crtc_vblank_off()[ 254.374783]WARNING:CPU:2PID:2878atdrivers/gpu/drm/...
参考Xilinx 官方文档 Linux DMA From User Space 中的 DMA Proxy Design 部分 https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842418/Linux+DMA+From+User+Space 总线时钟频率为 250M,数据位32bit,情况下,我们测试了 DMA 环回下的速度大概为 3...xilinx...
c:1000 drm_atomic_helper_commit_modeset_disables+0x3b0/0x3b8 [ 254.386941] Modules linked in: dmaproxy(O) al5d(O) al5e(O) allegro(O) xlnx_vcu xlnx_vcu_clk xilinx_hdmi_tx(O) xilinx_hdmi_rx(O) xlnx_vcu_core xilinx_vphy(O) dp159(O) mali(O) uio_pdrv_genirq [ 254.403812]...
proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; /* Linux before 2.6.34 drives the device without enabling the PCI device bus master bit. Enable it automatically for the guest. This is a PCI spec violation but so is initiating DMA with bus master bit clear. */ if (val == (VIRTIO_...
In general we saw really good results with applications such as Redis or Nginx proxy With these the focus is throughput, or latency under load. Can I ask what sort of application you are working with? Sorry, something went wrong. Copy link ...
DMA/Bridge Subsystem for PCI Express v4.1 读书笔记 (中文) XDMA 参考文档:PG195, https://github.com/Xilinx/dma_ip_drivers, https://support.xilinx.com/s/article/65443?language=en_US XDMA IP核的中文学习笔记,包括文档全部内容。 上传者:weixin_43354598时间:2022-03-11 ...
'hw/dma', 'hw/hppa', 'hw/hyperv', 'hw/i2c', 'hw/i386', 'hw/i386/xen', 'hw/ide', 'hw/input', 'hw/intc', 'hw/isa', 'hw/mem', 'hw/mips', 'hw/misc', 'hw/misc/macio', 'hw/net', 'hw/net/can', ...
c:1000 drm_atomic_helper_commit_modeset_disables+0x3b0/0x3b8 [ 254.386941] Modules linked in: dmaproxy(O) al5d(O) al5e(O) allegro(O) xlnx_vcu xlnx_vcu_clk xilinx_hdmi_tx(O) xilinx_hdmi_rx(O) xlnx_vcu_core xilinx_vphy(O) dp159(O) mali(O) uio_pdrv_genirq [ 254.403812]...
Jun 16, 2014 dma-helpers.c dma-helpers: avoid calling dma_bdrv_unmap() twice May 24, 2014 dump.c dump: Make DumpState and endian conversion routines available for arc… Jun 16, 2014 exec.c hostmem: add property to map memory with MAP_SHARED Jun 19, 2014 ...