From e40ec45d67d32ce900dd6f2242675979593db18c Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 18 Jan 2011 11:04:03 +1000
Subject: [PATCH] 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.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c |    3 ++-
 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 af61fc2..0b6a55a 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)
-- 
1.7.4.2