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-rw-r--r--shared-core/i915_dma.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c
index 090ac80a..18d2482e 100644
--- a/shared-core/i915_dma.c
+++ b/shared-core/i915_dma.c
@@ -751,6 +751,13 @@ int i915_apply_reloc(struct drm_file *file_priv, int num_buffers,
!drm_bo_same_page(relocatee->offset, new_cmd_offset)) {
drm_bo_kunmap(&relocatee->kmap);
relocatee->offset = new_cmd_offset;
+ mutex_lock (&relocatee->buf->mutex);
+ ret = drm_bo_wait (relocatee->buf, 0, 0, FALSE);
+ mutex_unlock (&relocatee->buf->mutex);
+ if (ret) {
+ DRM_ERROR("Could not wait for buffer to apply relocs\n %08lx", new_cmd_offset);
+ return ret;
+ }
ret = drm_bo_kmap(relocatee->buf, new_cmd_offset >> PAGE_SHIFT,
1, &relocatee->kmap);
if (ret) {