2017-12-01 11:36 GMT+01:00 Lucas Stach <l.stach@xxxxxxxxxxxxxx>:
> Inserting the END command when suspending the GPU is changing the
> command buffer state, which requires the GPU to be held.
>
> Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Reviewed-by: Christian Gmeiner <christian.gmeiner@xxxxxxxxx>
> ---
> drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> index 1e1e34adb07f..85f6ee1da016 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> @@ -1631,7 +1631,9 @@ static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu)
> {
> if (gpu->buffer) {
> /* Replace the last WAIT with END */
> + mutex_lock(&gpu->lock);
> etnaviv_buffer_end(gpu);
> + mutex_unlock(&gpu->lock);
>
> /*
> * We know that only the FE is busy here, this should
> --
> 2.11.0
>
--
greets
--
Christian Gmeiner, MSc
https://christian-gmeiner.info
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