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authorBen Skeggs <bskeggs@redhat.com>2011-02-02 00:27:10 +0000
committerDave Airlie <airlied@redhat.com>2011-02-23 11:09:24 +1000
commit82ef594efb16d1747c55dc449a8eeb38ea97ef80 (patch)
treeffce6f452a4a8415bdcf4f3e574e9576f11f2e51
parent9da12b6aeb8bde8cc3aecba12b0ec1114d6dcfea (diff)
drm/ttm: call driver move_notify() when doing system->tt bo moves
Nouveau doesn't have enough information at ttm_backend_func.bind() time to implement things like tiled GART, or to keep a buffer at a constant address in the GPU virtual address space no matter where in physical memory it's placed. To resolve this, nouveau will handle binding of all buffers to the GPU itself from the move_notify() hook. This commit ensures it's called for all buffer moves. Talked to Dave about the impact on radeon, which uses move_notify, it doesn't look like anything should break there. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Thomas Hellstrom <thomas@shipmail.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index af61fc29e843..0b6a55ac2f87 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -406,11 +406,12 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
}
if (bo->mem.mem_type == TTM_PL_SYSTEM) {
+ if (bdev->driver->move_notify)
+ bdev->driver->move_notify(bo, mem);
bo->mem = *mem;
mem->mm_node = NULL;
goto moved;
}
-
}
if (bdev->driver->move_notify)