Re: [PATCH 1/2] panfrost: Make sure GPU is powered on when reading GPU_LATEST_FLUSH_ID

On Thu, Jun 11, 2020 at 2:59 AM Tomeu Vizoso tomeu.vizoso@collabora.com wrote:

Bifrost devices do support the flush reduction feature, so on first job submit we were trying to read the register while still powered off.

If the GPU is powered off, the feature doesn't bring any benefit, so don't try to read.

Signed-off-by: Tomeu Vizoso tomeu.vizoso@collabora.com

drivers/gpu/drm/panfrost/panfrost_gpu.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)

Both patches applied.