From d25d26b8a87a97ce3bd7f5db840f9ca72ba5d422 Mon Sep 17 00:00:00 2001 From: Lijo Lazar Date: Mon, 7 Oct 2024 13:49:45 +0530 Subject: [PATCH] drm/amdgpu: Wait for reset on init completion When reset on initialization is requested, wait for the reset to finish. In cases where module is loaded after boot, this makes sure all initialization work is done after a successful return of modprobe. Signed-off-by: Lijo Lazar Reviewed-by: Ramesh Errabolu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 63503719303c3..fcdbcff57632d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -1548,6 +1548,7 @@ static void amdgpu_xgmi_schedule_reset_on_init(struct amdgpu_hive_info *hive) int amdgpu_xgmi_reset_on_init(struct amdgpu_device *adev) { struct amdgpu_hive_info *hive; + bool reset_scheduled; int num_devs; hive = amdgpu_get_xgmi_hive(adev); @@ -1556,12 +1557,18 @@ int amdgpu_xgmi_reset_on_init(struct amdgpu_device *adev) mutex_lock(&hive->hive_lock); num_devs = atomic_read(&hive->number_devices); - if (num_devs == adev->gmc.xgmi.num_physical_nodes) + reset_scheduled = false; + if (num_devs == adev->gmc.xgmi.num_physical_nodes) { amdgpu_xgmi_schedule_reset_on_init(hive); + reset_scheduled = true; + } mutex_unlock(&hive->hive_lock); amdgpu_put_xgmi_hive(hive); + if (reset_scheduled) + flush_work(&hive->reset_on_init_work); + return 0; } -- 2.39.5