diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_evict.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 8 |
3 files changed, 25 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 81ba5bbc97fa..7caf71d52abe 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2106,6 +2106,7 @@ int __must_check i915_gem_evict_something(struct drm_device *dev, unsigned cache_level, bool mappable, bool nonblock); +int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle); int i915_gem_evict_everything(struct drm_device *dev); /* i915_gem_stolen.c */ diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index e9033f02f498..3a3981eb3012 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -116,7 +116,7 @@ none: } /* We expect the caller to unpin, evict all and try again, or give up. - * So calling i915_gem_evict_everything() is unnecessary. + * So calling i915_gem_evict_vm() is unnecessary. */ return -ENOSPC; @@ -155,7 +155,22 @@ found: return ret; } -static int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle) +/** + * i915_gem_evict_vm - Try to free up VM space + * + * @vm: Address space to evict from + * @do_idle: Boolean directing whether to idle first. + * + * VM eviction is about freeing up virtual address space. If one wants fine + * grained eviction, they should see evict something for more details. In terms + * of freeing up actual system memory, this function may not accomplish the + * desired result. An object may be shared in multiple address space, and this + * function will not assert those objects be freed. + * + * Using do_idle will result in a more complete eviction because it retires, and + * inactivates current BOs. + */ +int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle) { struct i915_vma *vma, *next; int ret; diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index c8a01c141644..ee933572bdc1 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -549,10 +549,16 @@ i915_gem_execbuffer_reserve(struct intel_ring_buffer *ring, { struct drm_i915_gem_object *obj; struct i915_vma *vma; + struct i915_address_space *vm; struct list_head ordered_vmas; bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4; int retry; + if (list_empty(vmas)) + return 0; + + vm = list_first_entry(vmas, struct i915_vma, exec_list)->vm; + INIT_LIST_HEAD(&ordered_vmas); while (!list_empty(vmas)) { struct drm_i915_gem_exec_object2 *entry; @@ -641,7 +647,7 @@ err: /* Decrement pin count for bound objects */ if (ret != -ENOSPC || retry++) return ret; - ret = i915_gem_evict_everything(ring->dev); + ret = i915_gem_evict_vm(vm, true); if (ret) return ret; } while (1); |