kernel/drivers/gpu/drm/etnaviv, branch linux-4.16.y

drm/etnaviv: use memset32 to init pagetable

2018-01-02T16:36:53Z

Now that memset32 is available, the open-coded pagetable initialization loop can be replaced. Signed-off-by: Lucas Stach

drm/etnaviv: move submit free out of critical section

2018-01-02T16:36:28Z

There is no need to hold the GPU lock while freeing the submit object. Only move the retired submits from the GPU active list to a temporary retire list under the GPU lock. Signed-off-by: Lucas Stach

drm/etnaviv: re-enable perfmon support

2018-01-02T16:35:34Z

Now that the PMR lifetime issues are solved we can safely re-enable performance counter profiling support. Signed-off-by: Lucas Stach

drm/etnaviv: couple runtime PM management to submit object lifetime

2018-01-02T16:34:59Z

As long as there is an active submit, we want the GPU to stay awake. This is slightly complicated by the fact that we really want to wake the GPU at the last possible moment to achieve maximum power savings. Signed-off-by: Lucas Stach

drm/etnaviv: move GPU active handling to bo pin/unpin

2018-01-02T16:34:10Z

The active count is used to check if the BO is idle, where idle is defined as not active on the GPU and all VM mappings and reference counts dropped to the initial state. As the idling of the mappings and references now only happens in the submit cleanup, the active state handling must be moved to the same location in order to keep the userspace semantics. Signed-off-by: Lucas Stach

drm/etnaviv: move cmdbuf into submit object

2018-01-02T16:33:36Z

Less dynamic allocations and slims down the cmdbuf object to only the required information, as everything else is already available in the submit object. This also simplifies buffer and mappings lifetime management, as they are now exlusively attached to the submit object and not additionally to the cmdbuf. Signed-off-by: Lucas Stach

drm/etnaviv: use submit exec_state for perfmon sampling

2018-01-02T16:33:01Z

The GPU exec state may have changed at the time when the perfmon sampling is done, as it reflects the state of the last submission, not the current GPU execution state. So for proper sampling we must use the submit exec_state. Signed-off-by: Lucas Stach

drm/etnaviv: move exec_state to submit object

2018-01-02T16:32:40Z

We'll need this in some places where only the submit is available. Also this is a first step at slimming down the cmdbuf object. Signed-off-by: Lucas Stach

drm/etnaviv: move PMRs to submit object

2018-01-02T16:31:59Z

To make them available to the event worker even after the actual command stream execution has finished. Signed-off-by: Lucas Stach

drm/etnaviv: refcount the submit object

2018-01-02T16:31:31Z

The submit object lifetime will get extended to the actual GPU execution. As multiple users will depend on this, add a kref to properly control destruction of the object. Signed-off-by: Lucas Stach Reviewed-by: Philipp Zabel