[PATCH libdrm] tests: Test mapping different caching types on etnaviv

[Guido Günther]

Hi,
On Thu, Oct 04, 2018 at 03:43:11PM +0200, Lucas Stach wrote:
> Am Donnerstag, den 04.10.2018, 14:20 +0100 schrieb Emil Velikov:
> > [adding etnaviv@ for bigger exposure]
> > 
> > Hi Guido,
> > 
> > > On Fri, 14 Sep 2018 at 13:06, Guido Günther <agx at sigxcpu.org> wrote:
> > > 
> > > This makes it simple to test if all cache types are mappable.
> > > 
> > > > > Signed-off-by: Guido Günther <guido.gunther at puri.sm>
> > > ---
> > > Prompted by
> > > 
> > >   https://lists.freedesktop.org/archives/etnaviv/2018-September/001946.html
> > > 
> > >  tests/etnaviv/etnaviv_bo_cache_test.c | 26 ++++++++++++++++++++++++++
> > >  1 file changed, 26 insertions(+)
> > > 
> > 
> > Patch looks spot on, sadly my etnaviv knowledge is a bit limited.
> > 
> > Ideally one of the etna devs will double-check it, but from my POV
> > > Acked-by: Emil Velikov <emil.velikov at collabora.com>
> 
> Nope, this test has nothing to do with the BO cache, which is a
> userspace buffer cache layer, while the caching modes map to how CPU
> accesses to the buffer mmap space are treated by the hardware.
> 
> So if we want to keep this test, it needs to be split into a separate
> test.

After sending this I also realized that it would might be better suited
for igt-gpu-tools. Would it fit in there? If so'd rework it and add it
there.
Cheers,
 -- Guido