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readme: give concreate graphic mode arm commands

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Document that it does not work without -K.
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Ciro Santilli
2018-05-18 15:20:48 +01:00
parent 0e2a1b367c
commit 350a4c4d3f
1 changed files with 33 additions and 0 deletions
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README.adoc
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@@ -292,6 +292,39 @@ cat /dev/urandom > /dev/fb0
https://stackoverflow.com/questions/50364863/how-to-get-graphical-gui-output-and-user-touch-keyboard-mouse-input-in-a-ful/50364864#50364864
More concretely:
....
git checkout gem5-arm
./build -aa -lg -K linux/arch/arm/configs/gem5_defconfig
....
and then on another shell:
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vinagre localhost:5900
....
TODO: without the `-K` it fails even though we have added to link:kernel_config_fragment/default[] on the branch:
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CONFIG_DRM=y
CONFIG_DRM_HDLCD=y
CONFIG_DRM_VIRT_ENCODER=y
....
so what other options are missing from `gem5_defconfig`? The failing dmesg is:
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[ 0.121078] [drm] found ARM HDLCD version r0p0
[ 0.121117] hdlcd 2b000000.hdlcd: bound virt-encoder (ops drm_vencoder_ops)
[ 0.121122] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 0.121126] [drm] No driver support for vblank timestamp query.
[ 0.121156] hdlcd 2b000000.hdlcd: Failed to set initial hw configuration.
[ 0.121190] hdlcd 2b000000.hdlcd: master bind failed: -12
[ 0.121197] hdlcd: probe of 2b000000.hdlcd failed with error -12
....
=== Automatic startup commands
When debugging a module, it becomes tedious to wait for build and re-type: