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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-23 07:44:08 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-23 14:49:26 +0000 |
| commit | 9b6586ae9f6bf2115cf414d6004bbe69a4255692 (patch) | |
| tree | cbe39240c3a2b743694d0b8397a43854f838a41f /drivers/gpu/drm/i915/intel_engine_cs.c | |
| parent | drm/i915: Check against the signaled bit for fences/requests (diff) | |
| download | linux-dev-9b6586ae9f6bf2115cf414d6004bbe69a4255692.tar.xz linux-dev-9b6586ae9f6bf2115cf414d6004bbe69a4255692.zip | |
drm/i915: Keep a global seqno per-engine
Replace the global device seqno with one for each engine, and account
for in-flight seqno on each separately. This is consistent with
dma-fence as each timeline has separate fence-contexts for each engine
and a seqno is only ordered within a fence-context (i.e. seqno do not
need to be ordered wrt to other engines, just ordered within a single
engine). This is required to enable request rewinding for preemption on
individual engines (we have to rewind the global seqno to avoid
overflow, and we do not have to rewind all engines just to preempt one.)
v2: Rename active_seqno to inflight_seqnos to more clearly indicate that
it is a counter and not equivalent to the existing seqno. Update
functions that operated on active_seqno similarly.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170223074422.4125-3-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_engine_cs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_engine_cs.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index 46c94740be53..c4d4698f98e7 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -252,8 +252,6 @@ void intel_engine_init_global_seqno(struct intel_engine_cs *engine, u32 seqno) engine->irq_seqno_barrier(engine); GEM_BUG_ON(i915_gem_active_isset(&engine->timeline->last_request)); - engine->timeline->last_submitted_seqno = seqno; - engine->hangcheck.seqno = seqno; /* After manually advancing the seqno, fake the interrupt in case |