diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2020-02-16 13:36:20 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-02-16 15:16:22 +0000 |
| commit | 1883a0a4658eaba354db2179b4d3395247d27582 (patch) | |
| tree | 00c31e7c325e18a19c515a3638d26cf08ba61a07 /drivers/gpu/drm/i915/gt/intel_context.c | |
| parent | 0f8839f5f323da04a800e6ced1136e4b1e1689a9 (diff) | |
drm/i915: Track hw reported context runtime
GPU saves accumulated context runtime (in CS timestamp units) in PPHWSP
which will be useful for us in cases when we are not able to track context
busyness ourselves (like with GuC). Keep a copy of this in struct
intel_context from where it can be easily read even if the context is not
pinned.
v2:
(Chris)
* Do not store pphwsp address in intel_context.
* Log CS wrap-around.
* Simplify calculation by relying on integer wraparound.
v3:
* Include total/avg in traces and error state for debugging
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200216133620.394962-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c index e4f89341d17c..8bb444cda14f 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.c +++ b/drivers/gpu/drm/i915/gt/intel_context.c @@ -220,7 +220,9 @@ static void __intel_context_retire(struct i915_active *active) { struct intel_context *ce = container_of(active, typeof(*ce), active); - CE_TRACE(ce, "retire\n"); + CE_TRACE(ce, "retire runtime: { total:%lluns, avg:%lluns }\n", + intel_context_get_total_runtime_ns(ce), + intel_context_get_avg_runtime_ns(ce)); set_bit(CONTEXT_VALID_BIT, &ce->flags); if (ce->state) @@ -281,6 +283,8 @@ intel_context_init(struct intel_context *ce, ce->sseu = engine->sseu; ce->ring = __intel_context_ring_size(SZ_4K); + ewma_runtime_init(&ce->runtime.avg); + ce->vm = i915_vm_get(engine->gt->vm); INIT_LIST_HEAD(&ce->signal_link); |