kernel/drivers/gpu/drm/etnaviv/etnaviv_gpu.h, branch linux-4.17.y

drm/etnaviv: bring back progress check in job timeout handler

2018-07-17T09:48:22Z

commit 2c83a726d6fbb5d130d8f2edd82a258adb675ac3 upstream. When the hangcheck handler was replaced by the DRM scheduler timeout handling we dropped the forward progress check, as this might allow clients to hog the GPU for a long time with a big job. It turns out that even reasonably well behaved clients like the Armada Xorg driver occasionally trip over the 500ms timeout. Bring back the forward progress check to get rid of the userspace regression. We would still like to fix userspace to submit smaller batches if possible, but that is for another day. Cc: Fixes: 6d7a20c07760 (drm/etnaviv: replace hangcheck with scheduler timeout) Reported-by: Russell King Signed-off-by: Lucas Stach Reviewed-by: Eric Anholt Signed-off-by: Greg Kroah-Hartman

drm/etnaviv: add security handling mode enum

2018-03-09T11:22:37Z

With the introduction of GPU security we have 3 different modes of GPU operation: - GPU core doesn't have security features -> no handling required - the security related states are handled by the kernel driver - the security related states are handled by a TrustZone application Add a enum to differentiate between the different operation modes. Signed-off-by: Lucas Stach

drm/etnaviv: add hardware database

2018-03-09T11:22:37Z

New versions of the Vivante kernel driver don't trust the hardware feature bits anymore, but use an internal hardware database. This also includes more feature fields than are available in hardware. As we can't trust the hardware feature bits to be correct anymore, we need to replicate the HWDB in etanviv. For now only the GC7000L as found on the i.MX8M is supported. Signed-off-by: Lucas Stach

drm/etnaviv: add more minor features fields

2018-03-09T11:22:36Z

Newer GPU cores added yet more feature bits. Make room for them and let userspace query them. Signed-off-by: Lucas Stach

drm/etnaviv: add support for slave interface clock

2018-03-09T11:22:35Z

The slave interface clock is a clock input found on newer cores to gate the register interface. For now we simply ungate it when the GPU is in active state. Signed-off-by: Lucas Stach

drm/etnaviv: replace hangcheck with scheduler timeout

2018-02-12T15:31:01Z

This replaces the etnaviv internal hangcheck logic with the job timeout handling provided by the DRM scheduler. This simplifies the driver further and allows to replay jobs after a GPU reset, so only minimal state is lost. This introduces a user-visible change in that we don't allow jobs to run indefinitely as long as they make progress anymore, as this introduces quality of service issues when multiple processes are using the GPU. Userspace is now responsible to flush jobs in a way that the finish in a reasonable time, where reasonable is currently defined as less than 500ms. Signed-off-by: Lucas Stach

drm/etnaviv: move dependency handling to scheduler

2018-02-12T15:31:00Z

Move the fence dependency handling to the scheduler where it belongs. Jobs with unsignaled dependencies just get to sit in the scheduler queue without holding any locks. Signed-off-by: Lucas Stach

drm/etnaviv: hook up DRM GPU scheduler

2018-02-12T15:30:59Z

This hooks in the DRM GPU scheduler. No improvement yet, as all the dependency handling is still done in etnaviv_gem_submit. This just replaces the actual GPU submit by passing through the scheduler. Allows to get rid of the retire worker, as this is now driven by the scheduler. Signed-off-by: Lucas Stach

drm/etnaviv: track fences by IDR instead of seqno

2018-02-12T15:30:58Z

This moves away from using the internal seqno as the userspace fence reference. By moving to a generic ID, we can later replace the internal fence by something different than the etnaviv seqno fence. Signed-off-by: Lucas Stach Reviewed-by: Philipp Zabel

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