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drm/amd/amdgpu: Implement MES suspend/resume gang functionality for v12

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This commit implements the actual MES (Micro Engine Scheduler) suspend
and resume gang operations for version 12 hardware. Previously these
functions were just stubs returning success.

v2: Always use AMDGPU_MES_SCHED_PIPE

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
This commit is contained in:
Jesse.Zhang
2025-08-03 21:21:42 +08:00
committed by Alex Deucher
parent 2318336573
commit 6abd725fdf
1 changed files with 30 additions and 2 deletions
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32
drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
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@@ -568,13 +568,41 @@ static int mes_v12_0_unmap_legacy_queue(struct amdgpu_mes *mes,
static int mes_v12_0_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;
return mes_v12_0_submit_pkt_and_poll_completion(mes, AMDGPU_MES_SCHED_PIPE,
&mes_suspend_gang_pkt, sizeof(mes_suspend_gang_pkt),
offsetof(union MESAPI__SUSPEND, api_status));
}
static int mes_v12_0_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;
return mes_v12_0_submit_pkt_and_poll_completion(mes, AMDGPU_MES_SCHED_PIPE,
&mes_resume_gang_pkt, sizeof(mes_resume_gang_pkt),
offsetof(union MESAPI__RESUME, api_status));
}
static int mes_v12_0_query_sched_status(struct amdgpu_mes *mes, int pipe)