diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-05-17 22:26:32 +0100 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-05-18 09:35:22 +0100 |
commit | 1fc44d9b1afb0afe46acd99bdfdf793805a850e1 (patch) | |
tree | 2d1a88312c5275c6ede4505384ba0d7813fa67bf /drivers/gpu/drm/i915/i915_request.c | |
parent | 01278cb143955f4b592568d1756f1baf506245c2 (diff) |
drm/i915: Store a pointer to intel_context in i915_request
To ease the frequent and ugly pointer dance of
&request->gem_context->engine[request->engine->id] during request
submission, store that pointer as request->hw_context. One major
advantage that we will exploit later is that this decouples the logical
context state from the engine itself.
v2: Set mock_context->ops so we don't crash and burn in selftests.
Cleanups from Tvrtko.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180517212633.24934-3-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_request.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index fe8810a6a339..fc499bcbd105 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -383,8 +383,8 @@ static void __retire_engine_request(struct intel_engine_cs *engine, * the subsequent request. */ if (engine->last_retired_context) - intel_context_unpin(engine->last_retired_context, engine); - engine->last_retired_context = rq->gem_context; + intel_context_unpin(engine->last_retired_context); + engine->last_retired_context = rq->hw_context; } static void __retire_engine_upto(struct intel_engine_cs *engine, @@ -456,7 +456,7 @@ static void i915_request_retire(struct i915_request *request) /* Retirement decays the ban score as it is a sign of ctx progress */ atomic_dec_if_positive(&request->gem_context->ban_score); - intel_context_unpin(request->gem_context, request->engine); + intel_context_unpin(request->hw_context); __retire_engine_upto(request->engine, request); @@ -657,7 +657,7 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx) { struct drm_i915_private *i915 = engine->i915; struct i915_request *rq; - struct intel_ring *ring; + struct intel_context *ce; int ret; lockdep_assert_held(&i915->drm.struct_mutex); @@ -681,22 +681,21 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx) * GGTT space, so do this first before we reserve a seqno for * ourselves. */ - ring = intel_context_pin(ctx, engine); - if (IS_ERR(ring)) - return ERR_CAST(ring); - GEM_BUG_ON(!ring); + ce = intel_context_pin(ctx, engine); + if (IS_ERR(ce)) + return ERR_CAST(ce); ret = reserve_gt(i915); if (ret) goto err_unpin; - ret = intel_ring_wait_for_space(ring, MIN_SPACE_FOR_ADD_REQUEST); + ret = intel_ring_wait_for_space(ce->ring, MIN_SPACE_FOR_ADD_REQUEST); if (ret) goto err_unreserve; /* Move our oldest request to the slab-cache (if not in use!) */ - rq = list_first_entry(&ring->request_list, typeof(*rq), ring_link); - if (!list_is_last(&rq->ring_link, &ring->request_list) && + rq = list_first_entry(&ce->ring->request_list, typeof(*rq), ring_link); + if (!list_is_last(&rq->ring_link, &ce->ring->request_list) && i915_request_completed(rq)) i915_request_retire(rq); @@ -761,8 +760,9 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx) rq->i915 = i915; rq->engine = engine; rq->gem_context = ctx; - rq->ring = ring; - rq->timeline = ring->timeline; + rq->hw_context = ce; + rq->ring = ce->ring; + rq->timeline = ce->ring->timeline; GEM_BUG_ON(rq->timeline == &engine->timeline); spin_lock_init(&rq->lock); @@ -814,14 +814,14 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx) goto err_unwind; /* Keep a second pin for the dual retirement along engine and ring */ - __intel_context_pin(rq->gem_context, engine); + __intel_context_pin(ce); /* Check that we didn't interrupt ourselves with a new request */ GEM_BUG_ON(rq->timeline->seqno != rq->fence.seqno); return rq; err_unwind: - rq->ring->emit = rq->head; + ce->ring->emit = rq->head; /* Make sure we didn't add ourselves to external state before freeing */ GEM_BUG_ON(!list_empty(&rq->active_list)); @@ -832,7 +832,7 @@ err_unwind: err_unreserve: unreserve_gt(i915); err_unpin: - intel_context_unpin(ctx, engine); + intel_context_unpin(ce); return ERR_PTR(ret); } @@ -1018,8 +1018,8 @@ i915_request_await_object(struct i915_request *to, void __i915_request_add(struct i915_request *request, bool flush_caches) { struct intel_engine_cs *engine = request->engine; - struct intel_ring *ring = request->ring; struct i915_timeline *timeline = request->timeline; + struct intel_ring *ring = request->ring; struct i915_request *prev; u32 *cs; int err; |