On Mon, Dec 13, 2010 at 11:18 PM, Arnd Bergmann <a...@arndb.de> wrote:
> On Monday 13 December 2010, Jammy Zhou wrote: > > On Mon, Dec 13, 2010 at 4:45 AM, Linus Walleij <linus.wall...@linaro.org > >wrote: > > > > > On 11 December 2010 22:41, Arnd Bergmann <a...@arndb.de> wrote: > > > > > > * amd-gpu -- a single but huge driver for the GPU. As is normally the > > >> case with GPU drivers, we can expect long discussions > > >> before it will get considered for mainline > > >> 4 patches > > >> 98 files changed, 278321 insertions(+), 0 deletions(-) > > >> > > > > > > Just out of curiosity, following the discussion between Dave Airlie > > > and Codeaurora this summer re GPU driver shims. > > > > > > Is the AMD GPU exposing all functionality in its kernel driver or > > > is there some userspace blob somewhere with lots of e.g. GL > > > goodies? > > > > > All the functionality for the kernel driver of AMD GPU Z430/Z160 (now > > belongs to Qualcom) is exposed. But we need accompanied userspace library > to > > call these functionality (buffer management, command submission, ...). > > Who owns these components? If it's closed source, the only options we > have are lobbying for complete release of the specs for a reimplementation > or reverse-engineering the drivers, which may at least get easier with > a user space driver than it would be with a kernel driver. > The user space library is closed source, and it is owned by Qualcomm. > > Until there is a solution with an open source user space part, I would > suggest that the driver better be dropped from the Freescale BSP and > we should at least not waste time reviewing it. > I think it is beneficial for us to integrate the kernel part into our Linaro tree, so that we can build/use it together with the kernel image. As for the user space libraries, how about adding them into the hwpack? (Is there any legal issue for this?) > > Arnd >
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