[PATCH 3/5] drm/vmwgfx: add a move callback.

[Roland Scheidegger]

Both vmwgxf patches look good to me too.
Reviewed-by: Roland Scheidegger <sroland at vmware.com>

Am 06.10.20 um 02:06 schrieb Dave Airlie:
> From: Dave Airlie <airlied at redhat.com>
> 
> This just copies the fallback to vmwgfx, I'm going to iterate on this
> a bit until it's not the same as the fallback path.
> 
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
>  drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 19 ++++++++++++++++++-
>  1 file changed, 18 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
> index 2f88d2d79f9a..6e36fc932aeb 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
> @@ -725,6 +725,23 @@ static void vmw_swap_notify(struct ttm_buffer_object *bo)
>  	(void) ttm_bo_wait(bo, false, false);
>  }
>  
> +static int vmw_move(struct ttm_buffer_object *bo,
> +		     bool evict,
> +		     struct ttm_operation_ctx *ctx,
> +		     struct ttm_resource *new_mem)
> +{
> +	struct ttm_resource_manager *old_man = ttm_manager_type(bo->bdev, bo->mem.mem_type);
> +	struct ttm_resource_manager *new_man = ttm_manager_type(bo->bdev, new_mem->mem_type);
> +
> +	if (old_man->use_tt && new_man->use_tt) {
> +		if (bo->mem.mem_type == TTM_PL_SYSTEM) {
> +			ttm_bo_assign_mem(bo, new_mem);
> +			return 0;
> +		}
> +		return ttm_bo_move_ttm(bo, ctx, new_mem);
> +	} else
> +		return ttm_bo_move_memcpy(bo, ctx, new_mem);
> +}
>  
>  struct ttm_bo_driver vmw_bo_driver = {
>  	.ttm_tt_create = &vmw_ttm_tt_create,
> @@ -735,7 +752,7 @@ struct ttm_bo_driver vmw_bo_driver = {
>  	.ttm_tt_destroy = &vmw_ttm_destroy,
>  	.eviction_valuable = ttm_bo_eviction_valuable,
>  	.evict_flags = vmw_evict_flags,
> -	.move = NULL,
> +	.move = vmw_move,
>  	.verify_access = vmw_verify_access,
>  	.move_notify = vmw_move_notify,
>  	.swap_notify = vmw_swap_notify,
>