[Intel-gfx] [PATCH 2/2] intel: Avoid overcounting fences when emitting self-referential relocs
Chris Wilson
chris at chris-wilson.co.uk
Wed May 8 17:33:10 CEST 2013
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
intel/intel_bufmgr_gem.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index 6ebeec9..ccedeab 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -1652,6 +1652,14 @@ do_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,
assert(offset <= bo->size - 4);
assert((write_domain & (write_domain - 1)) == 0);
+ /* An object needing a fence is a tiled buffer, so it won't have
+ * relocs to other buffers.
+ */
+ if (need_fence) {
+ assert(target_bo_gem->reloc_count == 0);
+ target_bo_gem->reloc_tree_fences = 1;
+ }
+
/* Make sure that we're not adding a reloc to something whose size has
* already been accounted for.
*/
@@ -1659,13 +1667,8 @@ do_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,
if (target_bo_gem != bo_gem) {
target_bo_gem->used_as_reloc_target = true;
bo_gem->reloc_tree_size += target_bo_gem->reloc_tree_size;
+ bo_gem->reloc_tree_fences += target_bo_gem->reloc_tree_fences;
}
- /* An object needing a fence is a tiled buffer, so it won't have
- * relocs to other buffers.
- */
- if (need_fence)
- target_bo_gem->reloc_tree_fences = 1;
- bo_gem->reloc_tree_fences += target_bo_gem->reloc_tree_fences;
bo_gem->relocs[bo_gem->reloc_count].offset = offset;
bo_gem->relocs[bo_gem->reloc_count].delta = target_offset;
--
1.7.10.4
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