diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_request.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_scheduler.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_scheduler_types.h | 4 |
3 files changed, 15 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index e9c2094ab8ea..82094b9f5ba7 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -783,6 +783,12 @@ emit_semaphore_wait(struct i915_request *to, GEM_BUG_ON(!from->timeline->has_initial_breadcrumb); GEM_BUG_ON(INTEL_GEN(to->i915) < 8); + /* Just emit the first semaphore we see as request space is limited. */ + if (to->sched.semaphores & from->engine->mask) + return i915_sw_fence_await_dma_fence(&to->submit, + &from->fence, 0, + I915_FENCE_GFP); + /* We need to pin the signaler's HWSP until we are finished reading. */ err = i915_timeline_read_hwsp(from, to, &hwsp_offset); if (err) @@ -814,7 +820,8 @@ emit_semaphore_wait(struct i915_request *to, *cs++ = 0; intel_ring_advance(to, cs); - to->sched.flags |= I915_SCHED_HAS_SEMAPHORE; + to->sched.semaphores |= from->engine->mask; + to->sched.flags |= I915_SCHED_HAS_SEMAPHORE_CHAIN; return 0; } @@ -1126,7 +1133,7 @@ void i915_request_add(struct i915_request *request) * far in the distance past over useful work, we keep a history * of any semaphore use along our dependency chain. */ - if (!(request->sched.flags & I915_SCHED_HAS_SEMAPHORE)) + if (!(request->sched.flags & I915_SCHED_HAS_SEMAPHORE_CHAIN)) attr.priority |= I915_PRIORITY_NOSEMAPHORE; /* diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c index e0f609d01564..77dbf7d74e12 100644 --- a/drivers/gpu/drm/i915/i915_scheduler.c +++ b/drivers/gpu/drm/i915/i915_scheduler.c @@ -41,6 +41,7 @@ void i915_sched_node_init(struct i915_sched_node *node) INIT_LIST_HEAD(&node->waiters_list); INIT_LIST_HEAD(&node->link); node->attr.priority = I915_PRIORITY_INVALID; + node->semaphores = 0; node->flags = 0; } @@ -73,9 +74,9 @@ bool __i915_sched_node_add_dependency(struct i915_sched_node *node, dep->flags = flags; /* Keep track of whether anyone on this chain has a semaphore */ - if (signal->flags & I915_SCHED_HAS_SEMAPHORE && + if (signal->flags & I915_SCHED_HAS_SEMAPHORE_CHAIN && !node_started(signal)) - node->flags |= I915_SCHED_HAS_SEMAPHORE; + node->flags |= I915_SCHED_HAS_SEMAPHORE_CHAIN; ret = true; } diff --git a/drivers/gpu/drm/i915/i915_scheduler_types.h b/drivers/gpu/drm/i915/i915_scheduler_types.h index 76a004a17b2e..f1af3916a808 100644 --- a/drivers/gpu/drm/i915/i915_scheduler_types.h +++ b/drivers/gpu/drm/i915/i915_scheduler_types.h @@ -10,6 +10,7 @@ #include <linux/list.h> #include "i915_priolist_types.h" +#include "intel_engine_types.h" struct drm_i915_private; struct i915_request; @@ -55,7 +56,8 @@ struct i915_sched_node { struct list_head link; struct i915_sched_attr attr; unsigned int flags; -#define I915_SCHED_HAS_SEMAPHORE BIT(0) +#define I915_SCHED_HAS_SEMAPHORE_CHAIN BIT(0) + intel_engine_mask_t semaphores; }; struct i915_dependency { |