3 files changed, 10 insertions, 28 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_bufmgr.c b/src/mesa/drivers/dri/i965/brw_bufmgr.c
index 11251f15edc..30e4b28b9e0 100644
--- a/src/mesa/drivers/dri/i965/brw_bufmgr.c
+++ b/src/mesa/drivers/dri/i965/brw_bufmgr.c
@@ -820,30 +820,6 @@ brw_bo_subdata(struct brw_bo *bo, uint64_t offset,
    return ret;
 }
 
-int
-brw_bo_get_subdata(struct brw_bo *bo, uint64_t offset,
-                   uint64_t size, void *data)
-{
-   struct brw_bufmgr *bufmgr = bo->bufmgr;
-   struct drm_i915_gem_pread pread;
-   int ret;
-
-   memclear(pread);
-   pread.handle = bo->gem_handle;
-   pread.offset = offset;
-   pread.size = size;
-   pread.data_ptr = (uint64_t) (uintptr_t) data;
-   ret = drmIoctl(bufmgr->fd, DRM_IOCTL_I915_GEM_PREAD, &pread);
-   if (ret != 0) {
-      ret = -errno;
-      DBG("%s:%d: Error reading data from buffer %d: "
-          "(%"PRIu64" %"PRIu64") %s .\n",
-          __FILE__, __LINE__, bo->gem_handle, offset, size, strerror(errno));
-   }
-
-   return ret;
-}
-
 /** Waits for all GPU rendering with the object to have completed. */
 void
 brw_bo_wait_rendering(struct brw_bo *bo)
diff --git a/src/mesa/drivers/dri/i965/brw_bufmgr.h b/src/mesa/drivers/dri/i965/brw_bufmgr.h
index d388e5ad150..01a540f5315 100644
--- a/src/mesa/drivers/dri/i965/brw_bufmgr.h
+++ b/src/mesa/drivers/dri/i965/brw_bufmgr.h
@@ -222,9 +222,6 @@ static inline int brw_bo_unmap(struct brw_bo *bo) { return 0; }
 /** Write data into an object. */
 int brw_bo_subdata(struct brw_bo *bo, uint64_t offset,
                    uint64_t size, const void *data);
-/** Read data from an object. */
-int brw_bo_get_subdata(struct brw_bo *bo, uint64_t offset,
-                       uint64_t size, void *data);
 /**
  * Waits for rendering to an object by the GPU to have completed.
  *
diff --git a/src/mesa/drivers/dri/i965/intel_buffer_objects.c b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
index a9ac29a6a81..85cc1a694bf 100644
--- a/src/mesa/drivers/dri/i965/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
@@ -289,7 +289,16 @@ brw_get_buffer_subdata(struct gl_context *ctx,
    if (brw_batch_references(&brw->batch, intel_obj->buffer)) {
       intel_batchbuffer_flush(brw);
    }
-   brw_bo_get_subdata(intel_obj->buffer, offset, size, data);
+
+   void *map = brw_bo_map(brw, intel_obj->buffer, MAP_READ);
+
+   if (unlikely(!map)) {
+      _mesa_error_no_memory(__func__);
+      return;
+   }
+
+   memcpy(data, map + offset, size);
+   brw_bo_unmap(intel_obj->buffer);
 
    mark_buffer_inactive(intel_obj);
 }