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| author | Chris Wilson | 2018-04-30 15:15:00 +0200 |
|---|---|---|
| committer | Chris Wilson | 2018-04-30 17:01:11 +0200 |
| commit | 52d7f16e5543ca892ae2393a716083d209ce3b36 (patch) | |
| tree | d80f2a23732005d8c9653dfd9f0af57fb89448c3 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | drm/i915/lrc: Scrub the GPU state of the guilty hanging request (diff) | |
| download | kernel-qcow2-linux-52d7f16e5543ca892ae2393a716083d209ce3b36.tar.gz kernel-qcow2-linux-52d7f16e5543ca892ae2393a716083d209ce3b36.tar.xz kernel-qcow2-linux-52d7f16e5543ca892ae2393a716083d209ce3b36.zip | |
drm/i915: Stop tracking timeline->inflight_seqnos
In commit 9b6586ae9f6b ("drm/i915: Keep a global seqno per-engine"), we
moved from a global inflight counter to per-engine counters in the
hope that will be easy to run concurrently in future. However, with the
advent of the desire to move requests between engines, we do need a
global counter to preserve the semantics that no engine wraps in the
middle of a submit. (Although this semantic is now only required for gen7
semaphore support, which only supports greater-then comparisons!)
v2: Keep a global counter of all requests ever submitted and force the
reset when it wraps.
References: 9b6586ae9f6b ("drm/i915: Keep a global seqno per-engine")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180430131503.5375-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 193176bcddf5..dd4d6b918e86 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2062,6 +2062,7 @@ struct drm_i915_private { struct list_head timelines; struct i915_gem_timeline global_timeline; u32 active_requests; + u32 request_serial; /** * Is the GPU currently considered idle, or busy executing |