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drm/amdkfd: separate kfd_iommu_resume from kfd_resume

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Separate kfd_iommu_resume from kfd_resume for fine-tuning
of amdgpu device init/resume/reset/recovery sequence.

v2: squash in fix for !CONFIG_HSA_AMD

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211277
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
James Zhu 2021-09-07 11:13:02 -04:00 committed by Alex Deucher
parent 71ae30997a
commit fefc01f042
2 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
View file

@ -327,6 +327,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
const struct kgd2kfd_shared_resources *gpu_resources);
void kgd2kfd_device_exit(struct kfd_dev *kfd);
void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm);
int kgd2kfd_resume_iommu(struct kfd_dev *kfd);
int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm);
int kgd2kfd_pre_reset(struct kfd_dev *kfd);
int kgd2kfd_post_reset(struct kfd_dev *kfd);
@ -365,6 +366,11 @@ static inline void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
{
}
static int __maybe_unused kgd2kfd_resume_iommu(struct kfd_dev *kfd)
{
return 0;
}
static inline int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
{
return 0;

12
drivers/gpu/drm/amd/amdkfd/kfd_device.c
View file

@ -1069,17 +1069,21 @@ int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
return ret;
}
static int kfd_resume(struct kfd_dev *kfd)
int kgd2kfd_resume_iommu(struct kfd_dev *kfd)
{
int err = 0;
err = kfd_iommu_resume(kfd);
if (err) {
if (err)
dev_err(kfd_device,
"Failed to resume IOMMU for device %x:%x\n",
kfd->pdev->vendor, kfd->pdev->device);
return err;
}
return err;
}
static int kfd_resume(struct kfd_dev *kfd)
{
int err = 0;
err = kfd->dqm->ops.start(kfd->dqm);
if (err) {