<div dir="ltr"><div><div><div><div><div><div>Thanks for your reply... </div>Meanwhile, yesterday I was able to progress a bit with this... I have compiled mesa-17.2.4 with the etnaviv code replaced with the latest from mesa git repo, thus enabling OpenGL 2.1. </div>I was able to login into Ubuntu Desktop 17.10 with wayland, however the GUI is still to heavy for GC3000. I saw no notibceable performance improvement or degradation when comparing with the 2D unit and xf86-video-armada driver. </div>Regarding Xorg I found out that the graphical display is initialized, but no image can be seen because the imx-drm driver of mesa doesn't provide the DRI interface. It seems also possible to integrate VDPAU or VAAPI with imx-drm and the video acceleration unit of i.MX6. That would be pretty nice, but I think it would require lots of work. I also believe that the codec acceleration unit is not completely open-source... if it was, it was just a matter of creating a wrapper for the VDPAU API. </div>Xorg logs follow below. </div><div> </div>Regards, </div>Luís [ 17.121] (II) xfree86: Adding drm device (/dev/dri/card0) [ 17.137] (II) xfree86: Adding drm device (/dev/dri/card1) [ 17.137] (II) no primary bus or device found [ 17.138] falling back to /sys/devices/soc0/display-subsystem/drm/card0 [ 17.138] (II) LoadModule: "glx" [ 17.156] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 17.241] (II) Module glx: vendor="X.Org Foundation" [ 17.241] compiled for 1.19.5, module version = 1.0.0 [ 17.241] ABI class: X.Org Server Extension, version 10.0 [ 17.242] (==) Matched modesetting as autoconfigured driver 0 [ 17.242] (==) Matched fbdev as autoconfigured driver 1 [ 17.242] (==) Assigned the driver to the xf86ConfigLayout [ 17.242] (II) LoadModule: "modesetting" [ 17.244] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 17.250] (II) Module modesetting: vendor="X.Org Foundation" [ 17.250] compiled for 1.19.5, module version = 1.19.5 [ 17.251] Module class: X.Org Video Driver [ 17.251] ABI class: X.Org Video Driver, version 23.0 [ 17.251] (II) LoadModule: "fbdev" [ 17.252] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 17.254] (II) Module fbdev: vendor="X.Org Foundation" [ 17.254] compiled for 1.19.3, module version = 0.4.4 [ 17.254] Module class: X.Org Video Driver [ 17.254] ABI class: X.Org Video Driver, version 23.0 [ 17.255] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 17.255] (II) FBDEV: driver for framebuffer: fbdev [ 17.285] (II) modeset(0): using drv /dev/dri/card0 [ 17.285] (WW) Falling back to old probe method for fbdev [ 17.285] (II) Loading sub module "fbdevhw" [ 17.285] (II) LoadModule: "fbdevhw" [ 17.287] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 17.289] (II) Module fbdevhw: vendor="X.Org Foundation" [ 17.290] compiled for 1.19.5, module version = 0.0.2 [ 17.290] ABI class: X.Org Video Driver, version 23.0 [ 17.293] (II) modeset(0): Creating default Display subsection in Screen section "Default Screen Section" for depth/fbbpp 24/32 [ 17.293] (==) modeset(0): Depth 24, (==) framebuffer bpp 32 [ 17.293] (==) modeset(0): RGB weight 888 [ 17.294] (==) modeset(0): Default visual is TrueColor [ 17.294] (II) Loading sub module "glamoregl" [ 17.294] (II) LoadModule: "glamoregl" [ 17.295] (II) Loading /usr/lib/xorg/modules/libglamoregl.so [ 17.352] (II) Module glamoregl: vendor="X.Org Foundation" [ 17.352] compiled for 1.19.5, module version = 1.0.0 [ 17.353] ABI class: X.Org ANSI C Emulation, version 0.4 [ 17.353] (II) glamor: OpenGL accelerated X.org driver based. [ 18.043] (II) glamor: EGL version 1.4 (DRI2): [ 18.075] (II) modeset(0): glamor initialized [ 18.077] (II) modeset(0): Output HDMI-1 has no monitor section [ 18.079] (II) modeset(0): EDID for output HDMI-1 [ 18.079] (II) modeset(0): Printing probed modes for output HDMI-1 [ 18.079] (II) modeset(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e) [ 18.079] (II) modeset(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e) [ 18.080] (II) modeset(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e: [ 18.080] (II) modeset(0): Modeline "848x480"x60.0 33.75 848 864 976 1088 480 486 494 517 +hsync +vsync (31.0 kHz e) [ 18.080] (II) modeset(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e) [ 18.080] (II) modeset(0): Output HDMI-1 connected [ 18.080] (II) modeset(0): Using exact sizes for initial modes [ 18.080] (II) modeset(0): Output HDMI-1 using initial mode 1024x768 +0+0 [ 18.081] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0) [ 18.081] (==) modeset(0): DPI set to (96, 96) [ 18.081] (II) Loading sub module "fb" [ 18.081] (II) LoadModule: "fb" [ 18.088] (II) Loading /usr/lib/xorg/modules/libfb.so [ 18.092] (II) Module fb: vendor="X.Org Foundation" [ 18.092] compiled for 1.19.5, module version = 1.0.0 [ 18.092] ABI class: X.Org ANSI C Emulation, version 0.4 [ 18.092] (II) UnloadModule: "fbdev" [ 18.092] (II) Unloading fbdev [ 18.093] (II) UnloadSubModule: "fbdevhw" [ 18.093] (II) Unloading fbdevhw [ 18.093] (==) Depth 24 pixmap format is 32 bpp [ 18.326] (==) modeset(0): Backing store enabled [ 18.326] (==) modeset(0): Silken mouse enabled [ 18.330] (II) modeset(0): RandR 1.2 enabled, ignore the following RandR disabled message. [ 18.336] (==) modeset(0): DPMS enabled [ 18.337] (II) modeset(0): [DRI2] Setup complete [ 18.337] (II) modeset(0): [DRI2] DRI driver: imx-drm [ 18.337] (II) modeset(0): [DRI2] VDPAU driver: imx-drm [ 18.337] (--) RandR disabled [ 18.363] (II) SELinux: Disabled on system [ 18.366] (EE) AIGLX error: imx-drm does not export required DRI extension [ 18.366] (EE) AIGLX: reverting to software rendering [ 18.391] (II) IGLX: enabled GLX_MESA_copy_sub_buffer [ 18.395] (II) IGLX: Loaded and initialized swrast [ 18.396] (II) GLX: Initialized DRISWRAST GL provider for screen 0 [ 18.405] (II) modeset(0): Damage tracking initialized [ 18.406] (II) modeset(0): Setting screen physical size to 270 x 203 </div><div class="gmail_extra"> <div class="gmail_quote">On Wed, Nov 1, 2017 at 1:52 PM, Lucas Stach <<a href="mailto:l.stach@pengutronix.de" target="_blank">l.stach@pengutronix.de</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Am Dienstag, den 31.10.2017, 10:04 +0000 schrieb Russell King - ARM Linux: > On Tue, Oct 31, 2017 at 09:11:37AM +0000, Luís Mendes wrote: > > Hi, > > > > Russel: I believe that the video corruption I saw with copyNToN(...) > > function of xf86-video-armada is not the root cause of the problem, but > > rather a side effect of the MMU faults. > > Can you help me setup a debug environment where I can dump the client > > process stack from the etnaviv kernel module upon a MMU fault? I have > > enough space on my SSD drive to dump the memory images. > > I haven't looked at the kernel etnaviv driver in detail for a while, > but I added support for devcoredump to the driver, which dumps all > buffers attached to the GPU. This is rigged up to recover_worker(). > > When a MMU exception occurs, you'd need to call a worker to take > gpu->lock, and then call etnaviv_core_dump() in the same way > recover_worker() does. With the current page table settings for MMUv2 any MMU fault will actually stall the GPU. This way faults will already trigger the generation of coredumps, as the GPU is hung at that point. You don't need to change anything in the kernel driver for this to work. Regards, Lucas <div class="HOEnZb"><div class="h5"> > You'll need to clone and install > > git://<a href="http://git.armlinux.org.uk/~rmk/etna-gpu-tools.git/" rel="noreferrer" target="_blank">git.armlinux.org.uk/~rmk/etna-gpu-tools.git/</a> > > which contains the udev rules to detect when an etnaviv coredump > happens, and automatically unpack it. It'll want the etna_viv > source for some of the tools, and you'll need to edit the > Makefile to point it to that (it currently uses /shared/etna_viv). > > The devcoredump files will be located (by default) in /var/crash, > named etnaviv-$date.bin, and the unpacked versions in > /tmp/etnaviv-$date. > > Located in the package are tools to diff between two command > streams, detile etnaviv buffers, a replacement viv_info utility > for the DRM etnaviv version, and some scripts to help hexdump > the MMU and 3D GPU index buffers. > > What I've omitted from it is the perl script I use to parse the > GPU command stream - I forget why, but probably because it was > rather dirty, and accessed memory via /dev/mem. I also don't > think it had the bits for the 2D GPU. I'll see if I can clean > it up at some point and include it in the above git tree. > </div></div></blockquote></div> </div>