[Mesa-dev] Fw: [Intel-gfx] [PATCH] intel: add a timed wait function

[Eric Anholt]

On Wed, 30 May 2012 21:07:57 +0200, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Wed, May 30, 2012 at 7:41 PM, Eric Anholt <eric at anholt.net> wrote:
> > I guess GL_ALREADY_SIGNALED handling will be done using a check for
> > bo_busy() before calling this.
> 
> I've just read through the mesa code and gl_already_signalled seems to
> be handled already by core mesa code in _mesa_ClientWaitSync (if the
> driver sets syncObject->Status correctly). So I guess the current
> kernel code should work as-is and only the libdrm interface needs some
> colour adjustments around the timeout parameter.

Yeah, matches what I found.

Did you want pointer for timeout in the userspace api?  I don't feel
strongly about it, I just didn't see a use.  The equivalent API I could
think of was select(), where apparently linux returns time unwaited,
while "everyone else" doesn't.  I don't see a strong recommendation
either way from that.

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