drm/ttm: restructure to allow driver to plug in alternate memory manager

Nouveau will need this on GeForce 8 and up to account for the GPU
reordering physical VRAM for some memory types.

Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Acked-by: Thomas Hellström <thellstrom@vmware.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index c4f5114aee7c..1b3bd8c6c67e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -147,6 +147,7 @@ int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                 break;
         case TTM_PL_VRAM:
                 /* "On-card" video ram */
+                man->func = &ttm_bo_manager_func;
                 man->gpu_offset = 0;
                 man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
                 man->available_caching = TTM_PL_MASK_CACHING;
@@ -203,7 +204,7 @@ static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg
                 /* System memory */
                 return 0;
         case TTM_PL_VRAM:
-                mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+                mem->bus.offset = mem->start << PAGE_SHIFT;
                 mem->bus.base = dev_priv->vram_start;
                 mem->bus.is_iomem = true;
                 break;