[AMD Official Use Only] H Felix,
Since the previous patch can help on PCO suspend/resume hung issue. Let me work with YiFan to see if there is proper way to cover both cases. Thanks & Best Regards! James Zhu ________________________________ From: Kuehling, Felix <[email protected]> Sent: Tuesday, September 28, 2021 11:41 AM To: Zhang, Yifan <[email protected]>; [email protected] <[email protected]>; Zhu, James <[email protected]> Subject: Re: [PATCH 2/2] drm/amdgpu: init iommu after amdkfd device init [+James] This basically undoes James's change "drm/amdgpu: move iommu_resume before ip init/resume". I assume James made his change for a reason. Can you please discuss the issue with him and determine a solution that solves both your problem and his? If James' patch series was a mistake, I'd prefer to revert his patches, because his patches complicated the initialization sequence and exposed the iommu init sequence in amdgpu. Thanks, Felix Am 2021-09-28 um 4:28 a.m. schrieb Yifan Zhang: > This patch is to fix clinfo failure in Raven/Picasso: > > Number of platforms: 1 > Platform Profile: FULL_PROFILE > Platform Version: OpenCL 2.2 AMD-APP (3364.0) > Platform Name: AMD Accelerated Parallel Processing > Platform Vendor: Advanced Micro Devices, Inc. > Platform Extensions: cl_khr_icd cl_amd_event_callback > > Platform Name: AMD Accelerated Parallel Processing Number of devices: 0 > > Signed-off-by: Yifan Zhang <[email protected]> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > index 4c8f2f4647c0..89ed9b091386 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > @@ -2393,10 +2393,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device > *adev) > 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; > @@ -2435,6 +2431,10 @@ static int amdgpu_device_ip_init(struct amdgpu_device > *adev) > if (!adev->gmc.xgmi.pending_reset) > amdgpu_amdkfd_device_init(adev); > > + r = amdgpu_amdkfd_resume_iommu(adev); > + if (r) > + goto init_failed; > + > amdgpu_fru_get_product_info(adev); > > init_failed:
