[PATCH v4 11/18] drm/gem: Delete gem array fencing helpers

[Daniel Vetter <daniel.vetter@ffwll.ch>]

Integrated into the scheduler now and all users converted over.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
---
 drivers/gpu/drm/drm_gem.c | 96 ---------------------------------------
 include/drm/drm_gem.h     |  5 --
 2 files changed, 101 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 68deb1de8235..24d49a2636e0 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -1294,99 +1294,3 @@ drm_gem_unlock_reservations(struct drm_gem_object **objs, int count,
 	ww_acquire_fini(acquire_ctx);
 }
 EXPORT_SYMBOL(drm_gem_unlock_reservations);
-
-/**
- * drm_gem_fence_array_add - Adds the fence to an array of fences to be
- * waited on, deduplicating fences from the same context.
- *
- * @fence_array: array of dma_fence * for the job to block on.
- * @fence: the dma_fence to add to the list of dependencies.
- *
- * This functions consumes the reference for @fence both on success and error
- * cases.
- *
- * Returns:
- * 0 on success, or an error on failing to expand the array.
- */
-int drm_gem_fence_array_add(struct xarray *fence_array,
-			    struct dma_fence *fence)
-{
-	struct dma_fence *entry;
-	unsigned long index;
-	u32 id = 0;
-	int ret;
-
-	if (!fence)
-		return 0;
-
-	/* Deduplicate if we already depend on a fence from the same context.
-	 * This lets the size of the array of deps scale with the number of
-	 * engines involved, rather than the number of BOs.
-	 */
-	xa_for_each(fence_array, index, entry) {
-		if (entry->context != fence->context)
-			continue;
-
-		if (dma_fence_is_later(fence, entry)) {
-			dma_fence_put(entry);
-			xa_store(fence_array, index, fence, GFP_KERNEL);
-		} else {
-			dma_fence_put(fence);
-		}
-		return 0;
-	}
-
-	ret = xa_alloc(fence_array, &id, fence, xa_limit_32b, GFP_KERNEL);
-	if (ret != 0)
-		dma_fence_put(fence);
-
-	return ret;
-}
-EXPORT_SYMBOL(drm_gem_fence_array_add);
-
-/**
- * drm_gem_fence_array_add_implicit - Adds the implicit dependencies tracked
- * in the GEM object's reservation object to an array of dma_fences for use in
- * scheduling a rendering job.
- *
- * This should be called after drm_gem_lock_reservations() on your array of
- * GEM objects used in the job but before updating the reservations with your
- * own fences.
- *
- * @fence_array: array of dma_fence * for the job to block on.
- * @obj: the gem object to add new dependencies from.
- * @write: whether the job might write the object (so we need to depend on
- * shared fences in the reservation object).
- */
-int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
-				     struct drm_gem_object *obj,
-				     bool write)
-{
-	int ret;
-	struct dma_fence **fences;
-	unsigned int i, fence_count;
-
-	if (!write) {
-		struct dma_fence *fence =
-			dma_resv_get_excl_unlocked(obj->resv);
-
-		return drm_gem_fence_array_add(fence_array, fence);
-	}
-
-	ret = dma_resv_get_fences(obj->resv, NULL,
-						&fence_count, &fences);
-	if (ret || !fence_count)
-		return ret;
-
-	for (i = 0; i < fence_count; i++) {
-		ret = drm_gem_fence_array_add(fence_array, fences[i]);
-		if (ret)
-			break;
-	}
-
-	for (; i < fence_count; i++)
-		dma_fence_put(fences[i]);
-	kfree(fences);
-	return ret;
-}
-EXPORT_SYMBOL(drm_gem_fence_array_add_implicit);
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 240049566592..6d5e33b89074 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -409,11 +409,6 @@ int drm_gem_lock_reservations(struct drm_gem_object **objs, int count,
 			      struct ww_acquire_ctx *acquire_ctx);
 void drm_gem_unlock_reservations(struct drm_gem_object **objs, int count,
 				 struct ww_acquire_ctx *acquire_ctx);
-int drm_gem_fence_array_add(struct xarray *fence_array,
-			    struct dma_fence *fence);
-int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
-				     struct drm_gem_object *obj,
-				     bool write);
 int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 			    u32 handle, u64 *offset);
 
-- 
2.32.0