[AMD Official Use Only - General]
Hey Chris,
Yes, we use bitfield as flags to control certain features.
________________________________
From: Christian König <[email protected]>
Sent: Monday, October 16, 2023 1:58 PM
To: Zhang, Bokun <[email protected]>; [email protected]
<[email protected]>
Subject: Re: [PATCH v4 1/4] drm/amd/amdgpu/vcn: Add RB decouple feature under
SRIOV - P1
Am 16.10.23 um 18:52 schrieb Bokun Zhang:
> - Update SRIOV header with RB decouple flag
>
> Signed-off-by: Bokun Zhang <[email protected]>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
> b/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
> index 104a5ad8397d..51a14f6d93bd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h
> @@ -90,10 +90,11 @@ union amd_sriov_msg_feature_flags {
> uint32_t host_load_ucodes : 1;
> uint32_t host_flr_vramlost : 1;
> uint32_t mm_bw_management : 1;
> - uint32_t pp_one_vf_mode : 1;
> + uint32_t pp_one_vf_mode : 1;
> uint32_t reg_indirect_acc : 1;
> uint32_t av1_support : 1;
> - uint32_t reserved : 25;
> + uint32_t vcn_rb_decouple : 1;
> + uint32_t reserved : 24;
Are you guys using bitfields for SRIOV guest<->host communication?
Christian.
> } flags;
> uint32_t all;
> };
