[Freedreno] [GSoC-15] Enabling Freedreno on Android

[Varad Gautam]

On 04/08/2015 05:33 PM, Daniel Thompson wrote:
> On 07/04/15 17:13, Varad Gautam wrote:
>> Hi Daniel,
>>
>> On 04/07/2015 06:11 PM, Daniel Thompson wrote:
>>> On 05/04/15 18:35, Varad Gautam wrote:
>>>> Thanks Rob, Emil. While android-x86 [1] is down, I am going with
>>>>  android-ifc6410 with a rebased mesa.
>>>>
>>>> Daniel,
>>>
>>> Hi Varad.
>>>
>>>> I had the following errors while building android-ifc6410 [2]:
>>>>
>>>> [...] build/core/base_rules.mk:154: ***
>>>> device/linaro/vexpress/audio:
>>>> MODULE.TARGET.SHARED_LIBRARIES.audio.primary.vexpress already
>>>> defined by device/linaro/ifc6410/audio.  Stop.
>>>>
>>>> #### make failed to build some targets (01:15 (mm:ss)) ####
>>>>
>>>> [...] including ./external/libdrm/Android.mk ...
>>>> build/core/base_rules.mk:154: *** external/libdrm:
>>>> MODULE.TARGET.SHARED_LIBRARIES.libdrm already defined by
>>>> external/drm. Stop.
>>>>
>>>> #### make failed to build some targets (01:20 (mm:ss)) ####
>>>>
>>>> [...] including
>>>> ./kernel/linaro/vexpress/tools/gator/daemon/Android.mk ...
>>>> build/core/base_rules.mk:154: ***
>>>> kernel/linaro/vexpress/tools/gator/daemon:
>>>> MODULE.TARGET.EXECUTABLES.gatord already defined by
>>>> kernel/linaro/armv8/tools/gator/daemon.  Stop.
>>>>
>>>> #### make failed to build some targets (01:54 (mm:ss)) ####
>>>>
>>>>
>>>> As a temporary fix, I have dropped device/linaro/vexpress/audio,
>>>>  external/libdrm and kernel/linaro/armv8/tools/gator/daemon from
>>>> the build. Would it be okay if these duplicates are removed from
>>>> the build permanently for ifc6410?
>>>
>>> None of these directories should exist in the first place! They are
>>> present in the manifest but we use the grouping feature of repo to
>>> prevent them from being checked out for ifc6410.
>>>
>>> Could you check your command line history for the arguments you
>>> provided to "repo init" and share this?
>>
>> I used
>>
>> $ repo init -u
>> http://android.git.linaro.org/git/platform/manifest.git -b
>> android-5.0.2_r1 -g default,-non-default,ifc6410
>>
>> but looks like I have everything in the non-default group (like
>> device/linaro/juno and uefi) cloned too.
> 
> Weird.
> 
> What does your .repo/manifests.git/config look like? I think this file 
> is where what you type during repo init is stored. Mine is:
> --- cut here ---
> [core]
>          repositoryformatversion = 0
>          filemode = true
> [remote "origin"]
>          url = http://android.git.linaro.org/git/platform/manifest.git
>          fetch = +refs/heads/*:refs/remotes/origin/*
> [manifest]
>          groups = default,-non-default,ifc6410,platform-linux
> [branch "default"]
>          remote = origin
>          merge = android-5.0.2_r1
> --- cut here ---
> 
> 
>>> In the mean time I'll try a complete repo init/sync from scratch to
>>> double check if I get the same thing (this will take a long time so
>>> don't expect results before tomorrow).
>>>
>>
>> Thank you! I suspect I've missed something, but it would be good to
>> verify.
> 
> The test I ran last night did not check out any of the paths you 
> indicated were causing build problems. At the moment it looks like 
> something has gone wrong with your repo init or sync although right now 
> I have no idea what.
> 
> 
> Daniel.
> 

I fixed my manifest and re-synced, and can now boot to the "ANDROID"
text banner with android-ifc6410 (does not display any graphics; is it
because of not having the adreno blob driver?). I faced a kernel oops
issue which I figured was due to a bad dtb I was using, and hacked a
serial cable during the process which can come in handy later.

In the meantime I've got used to adb and fastboot, and have followed
through multiple resources to get a clearer picture of DRM/KMS and
atomic modesetting/pageflips.

Android-x86 is now up, and I will soon try building it for the board.

Thanks,
Varad