On Thu, Jul 16, 2015 at 01:19:09PM +0200, Michał Winiarski wrote: > When reading the timestamp register with single 64b read, we are observing > invalid values on x86_64: > > [f = valid counter value | X = garbage] > > i386: 0x0000000fffffffff > x86_64: 0xffffffffXXXXXXXX > > Test checks if the counter is moving and increasing. > Add a check to see if we can use (reg | 1) flag to get a proper 36b timestamp, > shifting the value on x86_64 if we can't. > > v2: More iterations of monotonic test, comments, minor fixups (Chris) > v3: Skip tests if reg_read is not supported > > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Michał Winiarski <michal.winiarski@xxxxxxxxx> Lgtm, Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
