Linux Developers Still Reject NVIDIA Using DMA-BUF

[johnc]

Nvidia can do a clean-room reimplementation of the Linux kernel, using the same API.

They will just do a "clean-room reimplementation" of the DMA buffer sharing mechanism they need, then everyone here will biitch that NVIDIA isn't using the common kernel code.

And TI will have their version... and Qualcomm... and Samsung... etc.

[entropy]

They will just do a "clean-room reimplementation" of the DMA buffer sharing mechanism they need, then everyone here will biitch that NVIDIA isn't using the common kernel code.

And TI will have their version... and Qualcomm... and Samsung... etc.

What I don't get, how would that allow to implement Optimus(TM) between an intel IGP and an Nvidia GPU?

[calubi]

What you have to remember is that NVIDIA is a business. The binary blob serves the needs of the commercial users who buy expensive hardware for Linux (read: HPC cluster users on enterprise linux distros) just fine, so where is the incentive to prioritize open-source drivers on Linux? Why does the lack of open-source support have to be a conspiracy against open-source instead of simply a lack of demand from commercial clients that pay the bills?

I just have to ask, why go on for 18 pages with the same arguments? I would love to see more open support as much as the next person, but this thread is just getting ridiculous. This thread is longer than most technical discussions about important Linux kernel subsystems! If you don't like NVIDIA's policies, then don't buy their hardware.

[johnc]

What I don't get, how would that allow to implement Optimus(TM) between an intel IGP and an Nvidia GPU?

I don't think Optimus is their primary intention with this. I think this is more about Tegra and Maxwell.

[entropy]

I don't think Optimus is their primary intention with this. I think this is more about Tegra and Maxwell.

Well, could be. I was too focused on Optimus.

[asdx]

Lol, optimus support in Linux will work out of the box with nouveau, intel, radeon, etc, since they are already using (?) or can use DMA-BUF/PRIME, while the blob will be left with crappy/hacky bumblebee crap.

Nvidia FAIL.

[johnc]

Lol, optimus support in Linux will work out of the box with nouveau, intel, radeon, etc, since they are already using (?) or can use DMA-BUF/PRIME, while the blob will be left with crappy/hacky bumblebee crap.

Nvidia FAIL.

Yup. And you'll be able to play 2D Solitaire with it.

Nouveau FTW!

[asdx]

Yup. And you'll be able to play 2D Solitaire with it.

Nouveau FTW!

Lol, enjoy your bumblebee.

While the rest of us sit and enjoy our out-of-the box optimus support (DMA-BUF, PRIME), Wayland, etc.

Let's see if you say the same thing about nouveau when we gain full reclocking support.

[johnc]

Lol, enjoy your bumblebee.

While the rest of us sit and enjoy our out-of-the box optimus support (DMA-BUF, PRIME), Wayland, etc.

That's okay, I have no interest in laptops.

I'll enjoy my discrete card playing the latest video games on Windows 7... while you enjoy your Wayland and etc.

[asdx]

That's okay, I have no interest in laptops.

I'll enjoy my discrete card playing the latest video games on Windows 7... while you enjoy your Wayland and etc.

Ok, enjoy your Windows and BSODs, and the future of your OS of choice: Windows 8.