diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c index ee9612a3ee5e..1ebe6e4086a1 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c @@ -142,7 +142,16 @@ int i915_ttm_move_notify(struct ttm_buffer_object *bo) struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); int ret; - ret = i915_gem_object_unbind(obj, I915_GEM_OBJECT_UNBIND_ACTIVE); + /* + * Note: The async unbinding here will actually transform the + * blocking wait for unbind into a wait before finally submitting + * evict / migration blit and thus stall the migration timeline + * which may not be good for overall throughput. We should make + * sure we await the unbind fences *after* the migration blit + * instead of *before* as we currently do. + */ + ret = i915_gem_object_unbind(obj, I915_GEM_OBJECT_UNBIND_ACTIVE | + I915_GEM_OBJECT_UNBIND_ASYNC); if (ret) return ret; @@ -427,11 +436,17 @@ __i915_ttm_move(struct ttm_buffer_object *bo, if (!IS_ERR(fence)) goto out; - } else if (move_deps) { - int err = i915_deps_sync(move_deps, ctx); + } else { + int err = PTR_ERR(fence); - if (err) - return ERR_PTR(err); + if (err == -EINTR || err == -ERESTARTSYS || err == -EAGAIN) + return fence; + + if (move_deps) { + err = i915_deps_sync(move_deps, ctx); + if (err) + return ERR_PTR(err); + } } /* Error intercept failed or no accelerated migration to start with */ @@ -525,7 +540,7 @@ int i915_ttm_move(struct ttm_buffer_object *bo, bool evict, return ret; } - migration_fence = __i915_ttm_move(bo, ctx, clear, dst_mem, bo->ttm, + migration_fence = __i915_ttm_move(bo, ctx, clear, dst_mem, ttm, dst_rsgt, true, &deps); i915_deps_fini(&deps); } |