[RFC] Using DC in amdgpu for upcoming GPU

[Michel Dänzer]

On 10/12/16 01:32 AM, Jan Ziak wrote:
> Hello Dave
> 
> Let's cool down the discussion a bit and try to work out a solution.
> 
> To summarize the facts, your decision implies that the probability of
> merging DAL/DC into the mainline Linux kernel the next year (2017) has
> become extremely low.
> 
> In essence, the strategy you are implicitly proposing is to move away
> from a software architecture which looks like this:
> 
>   APPLICATION
>   USERSPACE DRIVERS (OPENGL, XSERVER)
>   ----
>   HAL/DC IN AMDGPU.KO (FREESYNC, etc)
>   LINUX KERNEL SERVICES
>   HARDWARE
> 
> towards a software architecture looking like this:
> 
>   APPLICATION
>   USERSPACE DRIVERS (OPENGL, XSERVER)
>   USERSPACE HAL/DC IMPLEMENTATION (FREESYNC, etc)
>   ----
>   AMDGPU.KO
>   LINUX KERNEL SERVICES
>   HARDWARE

You misunderstood what Dave wrote.

The whole discussion is mostly about the DC related code in the amdgpu
driver and its interaction with core DRM/kernel code, i.e. mostly about
code under drivers/gpu/drm/. It doesn't affect anything outside of that,
certainly not how things are divided up between kernel and userspace.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer