On Tue, Dec 13, 2016 at 09:39:06PM +0200, Laurent Pinchart wrote: > Hello, > > On Tuesday 13 Dec 2016 16:16:41 David Herrmann wrote: > > On Mon, Dec 12, 2016 at 12:53 PM, Chris Wilson wrote: > > > For testing, we want a reproducible PRNG, a plain linear congruent > > > generator is suitable for our very limited selftests. > > > > > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > This doesn't seem very DRM-specific, is there a reason why we can't use the > ansi_cprng already present in the kernel ? That would be a nightmare to drag in a crypto dependency, for what should be a 5 cycle function. However, I will replace the Hars-Petruska lcg for prandom (from lib/random32.c). That meets the requirement of being a seeded PRNG. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
