[PATCH] drm/amdkfd: enable cooperative launch on gfx12

[Joshi, Mukul]

[Public]

Acked-by: Mukul Joshi <mukul.joshi at amd.com>

> -----Original Message-----
> From: Kim, Jonathan <Jonathan.Kim at amd.com>
> Sent: Friday, February 21, 2025 11:49 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Joshi, Mukul <Mukul.Joshi at amd.com>; Kim, Jonathan
> <Jonathan.Kim at amd.com>
> Subject: [PATCH] drm/amdkfd: enable cooperative launch on gfx12
>
> Even though GWS no longer exists, to maintain runtime usage for cooperative
> launch, SW set legacy GWS size.
>
> Signed-off-by: Jonathan Kim <jonathan.kim at amd.com>
> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_device.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
> index 9d20e169ec4a..095e73790dc4 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
> @@ -590,9 +590,13 @@ static int kfd_gws_init(struct kfd_node *node)
>                       && kfd->mec2_fw_version >= 0x6b) ||
>               (KFD_GC_VERSION(node) >= IP_VERSION(11, 0, 0)
>                       && KFD_GC_VERSION(node) < IP_VERSION(12, 0, 0)
> -                     && mes_rev >= 68))))
> +                     && mes_rev >= 68) ||
> +             (KFD_GC_VERSION(node) >= IP_VERSION(12, 0, 0))))) {
> +             if (KFD_GC_VERSION(node) >= IP_VERSION(12, 0, 0))
> +                     node->adev->gds.gws_size = 64;
>               ret = amdgpu_amdkfd_alloc_gws(node->adev,
>                               node->adev->gds.gws_size, &node->gws);
> +     }
>
>       return ret;
>  }
> --
> 2.34.1