This is a note to let you know that I've just added the patch titled drm/amdgpu: move iommu_resume before ip init/resume to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-amdgpu-move-iommu_resume-before-ip-init-resume.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From f02abeb0779700c308e661a412451b38962b8a0b Mon Sep 17 00:00:00 2001 From: James Zhu <James.Zhu@xxxxxxx> Date: Tue, 7 Sep 2021 11:32:22 -0400 Subject: drm/amdgpu: move iommu_resume before ip init/resume From: James Zhu <James.Zhu@xxxxxxx> commit f02abeb0779700c308e661a412451b38962b8a0b upstream. Separate iommu_resume from kfd_resume, and move it before other amdgpu ip init/resume. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211277 Signed-off-by: James Zhu <James.Zhu@xxxxxxx> Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2342,6 +2342,10 @@ static int amdgpu_device_ip_init(struct if (r) goto init_failed; + r = amdgpu_amdkfd_resume_iommu(adev); + if (r) + goto init_failed; + r = amdgpu_device_ip_hw_init_phase1(adev); if (r) goto init_failed; @@ -3096,6 +3100,10 @@ static int amdgpu_device_ip_resume(struc { int r; + r = amdgpu_amdkfd_resume_iommu(adev); + if (r) + return r; + r = amdgpu_device_ip_resume_phase1(adev); if (r) return r; @@ -4534,6 +4542,10 @@ int amdgpu_do_asic_reset(struct list_hea dev_warn(tmp_adev->dev, "asic atom init failed!"); } else { dev_info(tmp_adev->dev, "GPU reset succeeded, trying to resume\n"); + r = amdgpu_amdkfd_resume_iommu(tmp_adev); + if (r) + goto out; + r = amdgpu_device_ip_resume_phase1(tmp_adev); if (r) goto out; Patches currently in stable-queue which might be from James.Zhu@xxxxxxx are queue-5.14/drm-amdgpu-add-amdgpu_amdkfd_resume_iommu.patch queue-5.14/drm-amdkfd-separate-kfd_iommu_resume-from-kfd_resume.patch queue-5.14/drm-amdgpu-move-iommu_resume-before-ip-init-resume.patch