On Fri, Mar 20, 2026 at 4:02 PM Amber Lin <[email protected]> wrote: > > This patch adds code to mes_v12_1_suspend_gang and mes_v12_1_resume_gang. > > Signed-off-by: Amber Lin <[email protected]>
Reviewed-by: Alex Deucher <[email protected]> > --- > drivers/gpu/drm/amd/amdgpu/mes_v12_1.c | 34 ++++++++++++++++++++++++-- > 1 file changed, 32 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c > b/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c > index 4b279259b9d3..7aea3a50e712 100644 > --- a/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c > +++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c > @@ -468,13 +468,43 @@ static int mes_v12_1_unmap_legacy_queue(struct > amdgpu_mes *mes, > static int mes_v12_1_suspend_gang(struct amdgpu_mes *mes, > struct mes_suspend_gang_input *input) > { > - return 0; > + union MESAPI__SUSPEND mes_suspend_gang_pkt; > + > + memset(&mes_suspend_gang_pkt, 0, sizeof(mes_suspend_gang_pkt)); > + > + mes_suspend_gang_pkt.header.type = MES_API_TYPE_SCHEDULER; > + mes_suspend_gang_pkt.header.opcode = MES_SCH_API_SUSPEND; > + mes_suspend_gang_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS; > + > + mes_suspend_gang_pkt.suspend_all_gangs = input->suspend_all_gangs; > + mes_suspend_gang_pkt.gang_context_addr = input->gang_context_addr; > + mes_suspend_gang_pkt.suspend_fence_addr = input->suspend_fence_addr; > + mes_suspend_gang_pkt.suspend_fence_value = input->suspend_fence_value; > + > + /* Suspend gang is handled by master MES */ > + return mes_v12_1_submit_pkt_and_poll_completion(mes, input->xcc_id, > AMDGPU_MES_SCHED_PIPE, > + &mes_suspend_gang_pkt, sizeof(mes_suspend_gang_pkt), > + offsetof(union MESAPI__SUSPEND, api_status)); > } > > static int mes_v12_1_resume_gang(struct amdgpu_mes *mes, > struct mes_resume_gang_input *input) > { > - return 0; > + union MESAPI__RESUME mes_resume_gang_pkt; > + > + memset(&mes_resume_gang_pkt, 0, sizeof(mes_resume_gang_pkt)); > + > + mes_resume_gang_pkt.header.type = MES_API_TYPE_SCHEDULER; > + mes_resume_gang_pkt.header.opcode = MES_SCH_API_RESUME; > + mes_resume_gang_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS; > + > + mes_resume_gang_pkt.resume_all_gangs = input->resume_all_gangs; > + mes_resume_gang_pkt.gang_context_addr = input->gang_context_addr; > + > + /* Resume gang is handled by master MES */ > + return mes_v12_1_submit_pkt_and_poll_completion(mes, input->xcc_id, > AMDGPU_MES_SCHED_PIPE, > + &mes_resume_gang_pkt, sizeof(mes_resume_gang_pkt), > + offsetof(union MESAPI__RESUME, api_status)); > } > > static int mes_v12_1_query_sched_status(struct amdgpu_mes *mes, > -- > 2.43.0 >
