From 6abd725fdfc418abdf3aae0a1b19cb483305c723 Mon Sep 17 00:00:00 2001 From: "Jesse.Zhang" Date: Sun, 3 Aug 2025 21:21:42 +0800 Subject: [PATCH 5021/5403] drm/amd/amdgpu: Implement MES suspend/resume gang functionality for v12 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 Signed-off-by: Alex Deucher Signed-off-by: Jesse Zhang --- drivers/gpu/drm/amd/amdgpu/mes_v12_0.c | 32 ++++++++++++++++++++++++-- 1 file changed, 30 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c index ff5df28b57ec..0075bb2ed66c 100644 --- a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c @@ -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) -- 2.54.0