6.10-stable review patch. If anyone has any objections, please let me know.
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From: Yunxiang Li Yunxiang.Li@amd.com
[ Upstream commit f4322b9f8ad5f9f62add288c785d2e10bb6a5efe ]
Some times a hang GPU causes multiple reset sources to schedule resets. The second source will be able to trigger an unnecessary reset if they schedule after we call amdgpu_device_stop_pending_resets.
Move amdgpu_device_stop_pending_resets to after the reset is done. Since at this point the GPU is supposedly in a good state, any reset scheduled after this point would be a legitimate reset.
Remove unnecessary and incorrect checks for amdgpu_in_reset that was kinda serving this purpose.
Signed-off-by: Yunxiang Li Yunxiang.Li@amd.com Reviewed-by: Lijo Lazar lijo.lazar@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Stable-dep-of: 6e4aa08fa9c6 ("drm/amdgpu: Fix amdgpu_device_reset_sriov retry logic") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 19 ++++++++++--------- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 2 +- drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 2 +- drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 2 +- drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c | 2 +- 5 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d24d7a108624..9f7f96be1ac7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -5072,8 +5072,6 @@ static int amdgpu_device_reset_sriov(struct amdgpu_device *adev, retry: amdgpu_amdkfd_pre_reset(adev);
- amdgpu_device_stop_pending_resets(adev); - if (from_hypervisor) r = amdgpu_virt_request_full_gpu(adev, true); else @@ -5828,13 +5826,6 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev, r, adev_to_drm(tmp_adev)->unique); tmp_adev->asic_reset_res = r; } - - if (!amdgpu_sriov_vf(tmp_adev)) - /* - * Drop all pending non scheduler resets. Scheduler resets - * were already dropped during drm_sched_stop - */ - amdgpu_device_stop_pending_resets(tmp_adev); }
/* Actual ASIC resets if needed.*/ @@ -5856,6 +5847,16 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev, goto retry; }
+ list_for_each_entry(tmp_adev, device_list_handle, reset_list) { + /* + * Drop any pending non scheduler resets queued before reset is done. + * Any reset scheduled after this point would be valid. Scheduler resets + * were already dropped during drm_sched_stop and no new ones can come + * in before drm_sched_start. + */ + amdgpu_device_stop_pending_resets(tmp_adev); + } + skip_hw_reset:
/* Post ASIC reset for all devs .*/ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 26cea0076c9b..e12d179a451b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -601,7 +601,7 @@ static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work) if (ret) { adev->virt.vf2pf_update_retry_cnt++; if ((adev->virt.vf2pf_update_retry_cnt >= AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT) && - amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev)) { + amdgpu_sriov_runtime(adev)) { amdgpu_ras_set_fed(adev, true); if (amdgpu_reset_domain_schedule(adev->reset_domain, &adev->kfd.reset_work)) diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index 0c7275bca8f7..c5ba9c4757a8 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -319,7 +319,7 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev,
switch (event) { case IDH_FLR_NOTIFICATION: - if (amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev)) + if (amdgpu_sriov_runtime(adev)) WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain, &adev->virt.flr_work), "Failed to queue work! at %s", diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c index aba00d961627..fa9d1b02f391 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c @@ -358,7 +358,7 @@ static int xgpu_nv_mailbox_rcv_irq(struct amdgpu_device *adev,
switch (event) { case IDH_FLR_NOTIFICATION: - if (amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev)) + if (amdgpu_sriov_runtime(adev)) WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain, &adev->virt.flr_work), "Failed to queue work! at %s", diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c index 59f53c743362..14a065516ae4 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c @@ -560,7 +560,7 @@ static int xgpu_vi_mailbox_rcv_irq(struct amdgpu_device *adev, r = xgpu_vi_mailbox_rcv_msg(adev, IDH_FLR_NOTIFICATION);
/* only handle FLR_NOTIFY now */ - if (!r && !amdgpu_in_reset(adev)) + if (!r) WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain, &adev->virt.flr_work), "Failed to queue work! at %s",