Re: Testing VC4 on rpi2 with wayland and weston, weston fail to start with drm

Il 25/10/2015 15:32, Fabio Fantoni ha scritto:
> Il 07/10/2015 00:01, Eric Anholt ha scritto:
>> Fabio Fantoni <[email protected]> writes:
>>
>>> Il 03/10/2015 00:50, Eric Anholt ha scritto:
>>>> Fabio Fantoni <[email protected]> writes:
>>>>
>>>>> Hi, I want try VC4 on rpi2 with wayland on debian (I used Sid).
>>>>> Following this howto:
>>>>> http://dri.freedesktop.org/wiki/VC4/
>>>>> I rebuild the kernel from
>>>>> https://github.com/anholt/linux/tree/vc4-kms-v3d-rpi2
>>>>> Base config modified with: CONFIG_DRM_VC4=y and
>>>>> CONFIG_CMA_SIZE_MBYTES=128, full .config in attachment.
>>>>> I did the 2 additions to rpi2 config.txt (full in attachment).
>>>>> New kernel is working, in kern.log about drm I saw only this about 
>>>>> drm:
>>>>> Oct  1 11:11:16 jessie-rpi kernel: [    1.577017] [drm] 
>>>>> Initialized drm
>>>>> 1.1.0 20060810
>>>>> I suppose that compiling with CONFIG_DRM_VC4=y should be present 
>>>>> but I
>>>>> not saw line about.
>>>> You should also have various lines in dmesg about:
>>>>
>>>> [    3.185410] vc4-drm soc:vc4@7e4c0000: bound 20902000.hdmi (ops 
>>>> vc4_hdmi_ops)
>>>> [    3.200606] vc4-drm soc:vc4@7e4c0000: bound 20206000.pixelvalve 
>>>> (ops vc4_crtc_ops)
>>>> [    3.220583] vc4-drm soc:vc4@7e4c0000: bound 20207000.pixelvalve 
>>>> (ops vc4_crtc_ops)
>>>> [    3.232884] vc4-drm soc:vc4@7e4c0000: bound 20807000.pixelvalve 
>>>> (ops vc4_crtc_ops)
>>>> [    3.250938] vc4-drm soc:vc4@7e4c0000: bound 20400000.hvs (ops 
>>>> vc4_hvs_ops)
>>>> [    3.263385] [drm] Supports vblank timestamp caching Rev 2 
>>>> (21.10.2013).
>>>> [    3.270162] [drm] No driver support for vblank timestamp query.
>>>> [    3.470743] Console: switching to colour frame buffer device 240x67
>>>> [    3.540179] vc4-drm soc:vc4@7e4c0000: fb0:  frame buffer device
>>>>
>>>> so something is going wrong and keeping you from probing. There's at
>>>> least one problem in your config -- you can't have
>>>>
>>>> CONFIG_FB_BCM2708=y
>>>>
>>>> since you're trying to run a proper graphics driver, instead.  I don't
>>>> think that would keep vc4 from probing, though.  Maybe you wouldn't 
>>>> have
>>>> hit any of those "bound" messages because HDMI fails first due to your
>>>> config being missing:
>>>>
>>>> CONFIG_I2C_BCM2835=y
>>>>
>>>> I've added that to the wiki page.
>>> Thanks for your reply and all your work.
>>> I recompiled the kernel and retried, now screen show only and always
>>> "initial image" but system with ssh is working.
>>> Strange thing is that I not found vc4-drm lines also in this case.
>>> Actual kernel .config and kern.log in attachment.
>>> I did something missed or wrong or there is problem or an unexpected 
>>> case?
>>> I suppose is probable that also kernel parameters may change something
>>> but I don't know if I must change something, actual cmdline.txt.
>>> config.txt already attached in previous mail is ok or other changes not
>>> present in wiki are present?
>>> I also saw the strange thing that kernel is launched with addition
>>> parameters (from kern.log) but I not know how and if can be a problem:
>>>> Oct  3 17:22:02 jessie-rpi kernel: [ 0.000000] Kernel command line:
>>>> dma.dmachans=0x7f35 bcm2708_fb.fbwidth=1360 bcm2708_fb.fbheight=768
>>>> bcm2708.boardrev=0x2000010 bcm2708.serial=0x968d5adc
>>>> smsc95xx.macaddr=B8:27:EB:8D:5A:DC bcm2708_fb.fbswap=1
>>>> bcm2708.disk_led_gpio=47 bcm2708.disk_led_active_low=0
>>>> sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x3dc00000
>>>> vc_mem.mem_size=0x3f000000  dwc_otg.lpm_enable=0
>>>> console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootwait
>>>> net.ifnames=1
>>> If you need more informations or tests tell me and I'll post them.
>> Looking through the logs again, I'm not sure what's going on. At this
>> point I think I'd start adding DRM_INFO()s in vc4_drm_register(),
>> vc4_platform_drm_probe() and vc4_drm_bind() to start bisecting where
>> things are going wrong.
>
> I saw update on vc4-kms-v3d-rpi2 branch, I build it and tried but I 
> had the same result.
>
> I created the .config with:
> make bcm2709_defconfig
> and did the changes of the wiki, full .config used is in attachment.
> looking the syslog (see attachment) I not saw vc4 even if enabled, I 
> suppose there is still something wrong or missed in .config.
>
> Thanks for any reply and sorry for my bad english.
>

I retried with many other changes, in latest kernel build (config in 
attachment) I was able to boot with screen output working and something 
about vc4 in logs but there are errors about it like:
> Oct 28 11:44:19 jessie-rpi kernel: [ 3.695517] vc4-drm 
> soc:gpu@7e4c0000: failed to bind 3f902000.hdmi (ops vc4_hdmi_ops): -517
> Oct 28 11:44:19 jessie-rpi kernel: [    3.713539] vc4-drm 
> soc:gpu@7e4c0000: master bind failed: -517
Full syslog in attachment.
I was able to boot weston with vc4 drm but screen output always freeze 
after terminal window draw.
 From log I saw a segfault but trying to take a backtrace with gdb 
strangely fails, weston log in attachment.

If you need more informations/tests tell me and I'll post them.

Thanks for any reyply and sorry for my bad english.

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mesg: ttyname failed: ioctl non appropriata per il device
Date: 2015-10-28 CET
[11:49:49.509] weston 1.9.0
               http://wayland.freedesktop.org
               Bug reports to: https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&component=weston&version=1.9.0
               Build: 1.8.93-2-gb05cdb8 configure.ac: bump to version 1.9.0 for the official release (2015-09-21 18:11:26 -0700)
[11:49:49.510] OS: Linux, 4.2.3-v7+, #3 SMP PREEMPT Tue Oct 27 20:08:28 CET 2015, armv7l
[11:49:49.512] Using config file '/root/.config/weston.ini'
[11:49:49.515] Loading module '/usr/lib/arm-linux-gnueabihf/weston/drm-backend.so'
[11:49:49.566] Output repaint window is 7 ms maximum.
[11:49:49.566] initializing drm backend
[11:49:49.572] using /dev/dri/card0
[11:49:49.575] Loading module '/usr/lib/arm-linux-gnueabihf/weston/gl-renderer.so'
[11:49:50.828] EGL client extensions: EGL_EXT_client_extensions
               EGL_EXT_platform_base EGL_EXT_platform_wayland
               EGL_EXT_platform_x11 EGL_KHR_client_get_all_proc_addresses
               EGL_MESA_platform_gbm
[11:49:50.830] warning: EGL_EXT_swap_buffers_with_damage not supported. Performance could be affected.
[11:49:50.844] input device 'DELL DELL USB Keyboard', /dev/input/event0 is tagged by udev as: Keyboard
[11:49:50.844] input device 'DELL DELL USB Keyboard', /dev/input/event0 is a keyboard
[11:49:50.906] input device 'Logitech USB Optical Mouse', /dev/input/event1 is tagged by udev as: Mouse
[11:49:50.906] Device 'Logitech USB Optical Mouse' set to 1000 DPI
[11:49:50.906] input device 'Logitech USB Optical Mouse', /dev/input/event1 is a pointer caps
[11:49:51.123] EGL version: 1.4 (DRI2)
[11:49:51.123] EGL vendor: Mesa Project
[11:49:51.123] EGL client APIs: OpenGL OpenGL_ES OpenGL_ES2 
[11:49:51.123] EGL extensions: EGL_EXT_buffer_age EGL_EXT_image_dma_buf_import
               EGL_KHR_create_context EGL_KHR_get_all_proc_addresses
               EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image
               EGL_KHR_gl_texture_cubemap_image EGL_KHR_image
               EGL_KHR_image_base EGL_KHR_image_pixmap
               EGL_KHR_surfaceless_context EGL_MESA_configless_context
               EGL_MESA_drm_image EGL_MESA_image_dma_buf_export
               EGL_WL_bind_wayland_display
[11:49:51.124] GL version: OpenGL ES 2.0 Mesa 11.0.2
[11:49:51.124] GLSL version: OpenGL ES GLSL ES 1.0.16
[11:49:51.124] GL vendor: Broadcom
[11:49:51.124] GL renderer: Gallium 0.4 on VC4
[11:49:51.124] GL extensions: GL_EXT_blend_minmax GL_EXT_multi_draw_arrays
               GL_EXT_texture_format_BGRA8888
               GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth24
               GL_OES_element_index_uint GL_OES_fbo_render_mipmap
               GL_OES_mapbuffer GL_OES_rgb8_rgba8 GL_OES_stencil8
               GL_OES_texture_3D GL_OES_texture_npot GL_OES_EGL_image
               GL_OES_depth_texture GL_OES_packed_depth_stencil
               GL_EXT_texture_type_2_10_10_10_REV GL_OES_get_program_binary
               GL_APPLE_texture_max_level GL_EXT_discard_framebuffer
               GL_EXT_read_format_bgra GL_NV_fbo_color_attachments
               GL_OES_EGL_image_external GL_OES_EGL_sync
               GL_OES_vertex_array_object GL_EXT_unpack_subimage
               GL_NV_draw_buffers GL_NV_read_buffer GL_NV_read_depth
               GL_NV_read_depth_stencil GL_NV_read_stencil GL_EXT_draw_buffers
               GL_EXT_map_buffer_range GL_OES_surfaceless_context
               GL_EXT_separate_shader_objects GL_KHR_context_flush_control
[11:49:51.125] GL ES 2 renderer features:
               read-back format: BGRA
               wl_shm sub-image to texture: yes
               EGL Wayland extension: yes
[11:49:51.125] Chosen EGL config details:
               RGBA bits: 8 8 8 0
               swap interval range: 0 - 0
[11:49:51.126] Failed to initialize backlight
[11:49:51.126] EDID data 'DEL', 'DELL P2311H', 'PT0PV1354L1L'
[11:49:51.127] Output HDMI-A-1, (connector 19, crtc 28)
               mode [email protected], preferred, current
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected]
               mode [email protected], preferred
[11:49:51.128] Compositor capabilities:
               arbitrary surface rotation: yes
               screen capture uses y-flip: yes
               presentation clock: CLOCK_MONOTONIC, id 1
[11:49:51.131] Loading module '/usr/lib/arm-linux-gnueabihf/weston/desktop-shell.so'
[11:49:51.135] launching '/usr/lib/weston/weston-keyboard'
[11:49:51.138] launching '/usr/lib/weston/weston-desktop-shell'
ERROR loading icon from file '/usr/share/icons/gnome/24x24/apps/utilities-terminal.png', error: 'file not found'
Segmentation fault
child 1129 exited