[PATCH] drm/ttm: Do not add non-system domain BO into swap list

[Chen, Guchun]

[AMD Public Use]

Acked-by: Guchun Chen <guchun.chen at amd.com>

Regards,
Guchun

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
Sent: Wednesday, February 24, 2021 11:35 AM
To: Pan, Xinhui <Xinhui.Pan at amd.com>
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Maling list - DRI developers <dri-devel at lists.freedesktop.org>; Koenig, Christian <Christian.Koenig at amd.com>; amd-gfx list <amd-gfx at lists.freedesktop.org>
Subject: Re: [PATCH] drm/ttm: Do not add non-system domain BO into swap list

On Tue, Feb 23, 2021 at 10:28 PM xinhui pan <xinhui.pan at amd.com> wrote:
>
> BO would be added into swap list if it is validated into system domain.
> If BO is validated again into non-system domain, say, VRAM domain. It 
> actually should not be in the swap list.
>
> Signed-off-by: xinhui pan <xinhui.pan at amd.com>

Acked-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/ttm/ttm_bo.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c 
> b/drivers/gpu/drm/ttm/ttm_bo.c index a97d41f4ce3c..3a10bebb75d6 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -111,6 +111,8 @@ void ttm_bo_move_to_lru_tail(struct 
> ttm_buffer_object *bo,
>
>                 swap = &ttm_glob.swap_lru[bo->priority];
>                 list_move_tail(&bo->swap, swap);
> +       } else {
> +               list_del_init(&bo->swap);
>         }
>
>         if (bdev->funcs->del_from_lru_notify)
> --
> 2.25.1
>
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