Hi, I have managed to fix some minor issues of the DDK 1.17 source tree provided by Texas Instruments (thanks!) which still contains sgx_jz4780 kernel module code. Attached are first results which show that the driver module can now be successfully built and loaded on the CI20 board. Next complexity is that there is no MIPS build of the DDK 1.17 user-space libs and tools. So I have installed the ti443x version which seems to support SGX540. I have started to experiment with "qemu-arm-static pvrsrvctl" but it reports missing ARM libraries which is of course to be expected on a MIPS setup... But if we can make that work somehow it opens a new way to support other SoC as well: A83, Poulsbo etc. by forward-porting their SoC specific drivers we have in some 1.14 trees to 1.17. Or alternatively by developing a really generic pvrsrvkm that becomes SoC-independent. Code hasn't been pushed to the project git repo since it is does not have a linear history. I plan to push a new rebased release (including these fixes) with v5.7-rc1. BR, Nikolaus root@letux:~# cat /etc/debian_version 9.12 root@letux:~# uname -a Linux letux 5.6.0-rc7-letux-l400+ #2356 SMP PREEMPT Sun Mar 29 14:43:33 CEST 2020 mips GNU/Linux root@letux:~# modprobe pvrsrvkm_jz4780_sgx540_120 [ 1485.329869] pvrsrvkm 13040000.gpu: Enabling quirks 00000000 [ 1485.353477] [drm] Initialized pvr 1.17.4948957 20110701 for 13040000.gpu on minor 1 root@letux:~# lsmod Module Size Used by pvrsrvkm_jz4780_sgx540_120 338691 0 g_ether 5373 0 usb_f_rndis 17648 1 g_ether u_ether 13532 2 g_ether,usb_f_rndis libcomposite 48008 2 g_ether,usb_f_rndis configfs 32565 3 usb_f_rndis,libcomposite dw_hdmi_jz4780 2103 0 ingenic_drm 9582 0 dw_hdmi 27893 1 dw_hdmi_jz4780 drm_kms_helper 195676 3 ingenic_drm,dw_hdmi syscopyarea 2754 1 drm_kms_helper sysfillrect 3338 1 drm_kms_helper sysimgblt 2140 1 drm_kms_helper fb_sys_fops 1803 1 drm_kms_helper drm 485544 5 ingenic_drm,pvrsrvkm_jz4780_sgx540_120,dw_hdmi,drm_kms_helper gpio_ir_recv 2798 0 gpio_keys 9881 0 dm9000 18156 0 rtc_pcf8563 7287 1 nvmem_jz4780_efuse 3248 0 mii 7162 1 dm9000 drm_panel_orientation_quirks 942 1 drm ipv6 410154 24 autofs4 26479 9 root@letux:~# ls -l /proc/pvr/ total 0 -r--r--r-- 1 root root 0 Mar 29 14:17 nodes -r--r--r-- 1 root root 0 Mar 29 14:17 queue -r--r--r-- 1 root root 0 Mar 29 14:17 version root@letux:~# cat /proc/pvr/* Registered nodes Addr Type Class Index Ref pvDev Size Res e4186696 ?7 3D 0 1 da3ed53d 0 4ea4f1a1 Command Queues Queue CmdPtr Pid Command Size DevInd DSC SSC #Data ... Version SGX_DDK sgxddk 1.17@4948957 (release) omap_sgx System Version String: None root@letux:~# ls -l /dev/dri total 0 crw-rw---- 1 root video 226, 0 Nov 3 2016 card0 crw-rw---- 1 root video 226, 1 Mar 29 14:15 card1 crw-rw---- 1 root video 226, 128 Mar 29 14:15 renderD128 root@letux:~# cat /proc/cpuinfo system type : JZ4780 machine : img,ci20 processor : 0 cpu model : Ingenic XBurst V4.15 FPU V0.0 BogoMIPS : 1196.85 wait instruction : yes microsecond timers : no tlb_entries : 32 extra interrupt vector : yes hardware watchpoint : yes, count: 1, address/irw mask: [0x0fff] isa : mips1 mips2 mips32r1 mips32r2 ASEs implemented : shadow register sets : 1 kscratch registers : 0 package : 0 core : 0 VCED exceptions : not available VCEI exceptions : not available processor : 1 cpu model : Ingenic XBurst V4.15 FPU V0.0 BogoMIPS : 1202.58 wait instruction : yes microsecond timers : no tlb_entries : 32 extra interrupt vector : yes hardware watchpoint : yes, count: 1, address/irw mask: [0x0fff] isa : mips1 mips2 mips32r1 mips32r2 ASEs implemented : shadow register sets : 1 kscratch registers : 0 package : 0 core : 1 VCED exceptions : not available VCEI exceptions : not available root@letux:~# qemu-arm-static /usr/bin/pvrsrvctl --start --no-module /lib/ld-linux-armhf.so.3: No such file or directory root@letux:~#
