From cf97de5b540425d331394da3deafb2a869b394a6 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 20 Mar 2025 12:49:30 -0400 Subject: [PATCH 3134/5403] drm/amdgpu/userq: prevent runtime pm when userqs are active Similar to KFD, prevent runtime pm while user queues are active. Reviewed-by: Arunpravin Paneer Selvam Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 30 +++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 09a121831b2b..c2f6fe305e6f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2710,6 +2710,29 @@ static int amdgpu_runtime_idle_check_display(struct device *dev) return 0; } +static int amdgpu_runtime_idle_check_userq(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct drm_device *drm_dev = pci_get_drvdata(pdev); + struct amdgpu_device *adev = drm_to_adev(drm_dev); + struct amdgpu_usermode_queue *queue; + struct amdgpu_userq_mgr *uqm, *tmp; + int queue_id; + int ret = 0; + + mutex_lock(&adev->userq_mutex); + list_for_each_entry_safe(uqm, tmp, &adev->userq_mgr_list, list) { + idr_for_each_entry(&uqm->userq_idr, queue, queue_id) { + ret = -EBUSY; + goto done; + } + } +done: + mutex_unlock(&adev->userq_mutex); + + return ret; +} + static int amdgpu_pmops_runtime_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); @@ -2723,6 +2746,9 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev) } ret = amdgpu_runtime_idle_check_display(dev); + if (ret) + return ret; + ret = amdgpu_runtime_idle_check_userq(dev); if (ret) return ret; @@ -2846,7 +2872,11 @@ static int amdgpu_pmops_runtime_idle(struct device *dev) } ret = amdgpu_runtime_idle_check_display(dev); + if (ret) + goto done; + ret = amdgpu_runtime_idle_check_userq(dev); +done: pm_runtime_mark_last_busy(dev); pm_runtime_autosuspend(dev); return ret; -- 2.54.0