[PATCH 1/3] drm/etnaviv: submit support for in-fences

[Rob Clark]

On Wed, Mar 8, 2017 at 9:37 AM, Gustavo Padovan <gustavo at padovan.org> wrote:
>> diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
>> index 2584c1cca42f6..e9c388a1d8ebe 100644
>> --- a/include/uapi/drm/etnaviv_drm.h
>> +++ b/include/uapi/drm/etnaviv_drm.h
>> @@ -154,6 +154,10 @@ struct drm_etnaviv_gem_submit_bo {
>>   * one or more cmdstream buffers.  This allows for conditional execution
>>   * (context-restore), and IB buffers needed for per tile/bin draw cmds.
>>   */
>> +#define ETNA_SUBMIT_NO_IMPLICIT         0x0001
>> +#define ETNA_SUBMIT_FENCE_FD_IN         0x0002
>
> ETNA_SUBMIT_NO_IMPLICIT and ETNA_SUBMIT_FENCE_FD_IN are the same, when
> you send and fence_fd to the kernel you are requesting on explicit sync
> thus I think the ETNA_SUBMIT_NO_IMPLICIT can be dropped and
> ETNA_SUBMIT_FENCE_FD_IN would be the one to look at.

jfwiw, I kept separate no-implicit and fence-fd-in flags in msm mostly
because I couldn't think of a good backwards-compatible way to add it
later if needed.  Currently userspace sets both flags together, and
possibly always will.  But keeping separate flags seemed like a good
idea for future-proofing..

BR,
-R


>> +#define ETNA_SUBMIT_FLAGS            (ETNA_SUBMIT_NO_IMPLICIT | \
>> +                                      ETNA_SUBMIT_FENCE_FD_IN)