[Intel-gfx] [PATCH igt] lib/gt: Always eat the unwanted error state

[Michał Winiarski]

On Fri, Oct 20, 2017 at 03:20:22PM +0100, Chris Wilson wrote:
> We only suppress the error state from the context, iff we triggering the
> GPU reset by hangcheck (igt_hang_ring). If we trigger an immediate reset
> via igt_force_gpu_reset(), we will populate the error-state but not free
> it because we thought we have it suppressed by the context parameter.
> Always eat the error after we expect a GPU reset, and have not specified
> that we want to keep it.
> 
> The side-effect of keeping the error-state around after we deliberately
> created it is that subsequent GPU hangs are not prominently recorded, as
> the kernel believes they are secondary hangs (and we only announce the
> first).
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Reviewed-by: Michał Winiarski <michal.winiarski at intel.com>

-Michał

> ---
>  lib/igt_gt.c | 31 ++++++++++++++++---------------
>  1 file changed, 16 insertions(+), 15 deletions(-)