diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 42 |
6 files changed, 70 insertions, 26 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index 8609287620ea..314c4a2a0354 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -178,18 +178,18 @@ void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev, kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry); } -void amdgpu_amdkfd_suspend(struct amdgpu_device *adev) +void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm) { if (adev->kfd.dev) - kgd2kfd_suspend(adev->kfd.dev); + kgd2kfd_suspend(adev->kfd.dev, run_pm); } -int amdgpu_amdkfd_resume(struct amdgpu_device *adev) +int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm) { int r = 0; if (adev->kfd.dev) - r = kgd2kfd_resume(adev->kfd.dev); + r = kgd2kfd_resume(adev->kfd.dev, run_pm); return r; } @@ -713,11 +713,11 @@ void kgd2kfd_exit(void) { } -void kgd2kfd_suspend(struct kfd_dev *kfd) +void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm) { } -int kgd2kfd_resume(struct kfd_dev *kfd) +int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm) { return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index 47b0f2957d1f..9e8db702d878 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -122,8 +122,8 @@ struct amdkfd_process_info { int amdgpu_amdkfd_init(void); void amdgpu_amdkfd_fini(void); -void amdgpu_amdkfd_suspend(struct amdgpu_device *adev); -int amdgpu_amdkfd_resume(struct amdgpu_device *adev); +void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm); +int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm); void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev, const void *ih_ring_entry); void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev); @@ -249,8 +249,8 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, struct drm_device *ddev, const struct kgd2kfd_shared_resources *gpu_resources); void kgd2kfd_device_exit(struct kfd_dev *kfd); -void kgd2kfd_suspend(struct kfd_dev *kfd); -int kgd2kfd_resume(struct kfd_dev *kfd); +void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm); +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); void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 31fe28e27430..9d5100f45bf1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3341,7 +3341,7 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon) } } - amdgpu_amdkfd_suspend(adev); + amdgpu_amdkfd_suspend(adev, !fbcon); amdgpu_ras_suspend(adev); @@ -3425,7 +3425,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon) } } } - r = amdgpu_amdkfd_resume(adev); + r = amdgpu_amdkfd_resume(adev, !fbcon); if (r) return r; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 2a9e40131735..a3d7ec0424cf 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -710,7 +710,7 @@ out: void kgd2kfd_device_exit(struct kfd_dev *kfd) { if (kfd->init_complete) { - kgd2kfd_suspend(kfd); + kgd2kfd_suspend(kfd, false); device_queue_manager_uninit(kfd->dqm); kfd_interrupt_exit(kfd); kfd_topology_remove_device(kfd); @@ -731,7 +731,7 @@ int kgd2kfd_pre_reset(struct kfd_dev *kfd) kfd->dqm->ops.pre_reset(kfd->dqm); - kgd2kfd_suspend(kfd); + kgd2kfd_suspend(kfd, false); kfd_signal_reset_event(kfd); return 0; @@ -765,21 +765,23 @@ bool kfd_is_locked(void) return (atomic_read(&kfd_locked) > 0); } -void kgd2kfd_suspend(struct kfd_dev *kfd) +void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm) { if (!kfd->init_complete) return; - /* For first KFD device suspend all the KFD processes */ - if (atomic_inc_return(&kfd_locked) == 1) - kfd_suspend_all_processes(); + /* for runtime suspend, skip locking kfd */ + if (!run_pm) { + /* For first KFD device suspend all the KFD processes */ + if (atomic_inc_return(&kfd_locked) == 1) + kfd_suspend_all_processes(); + } kfd->dqm->ops.stop(kfd->dqm); - kfd_iommu_suspend(kfd); } -int kgd2kfd_resume(struct kfd_dev *kfd) +int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm) { int ret, count; @@ -790,10 +792,13 @@ int kgd2kfd_resume(struct kfd_dev *kfd) if (ret) return ret; - count = atomic_dec_return(&kfd_locked); - WARN_ONCE(count < 0, "KFD suspend / resume ref. error"); - if (count == 0) - ret = kfd_resume_all_processes(); + /* for runtime resume, skip unlocking kfd */ + if (!run_pm) { + count = atomic_dec_return(&kfd_locked); + WARN_ONCE(count < 0, "KFD suspend / resume ref. error"); + if (count == 0) + ret = kfd_resume_all_processes(); + } return ret; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 9a06eb616cbf..f326e31624d7 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -650,6 +650,7 @@ struct kfd_process_device { * function. */ bool already_dequeued; + bool runtime_inuse; /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ enum kfd_pdd_bound bound; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 98dcbb96b2e2..22abdbc6dfd7 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -31,6 +31,7 @@ #include <linux/compat.h> #include <linux/mman.h> #include <linux/file.h> +#include <linux/pm_runtime.h> #include "amdgpu_amdkfd.h" #include "amdgpu.h" @@ -527,6 +528,16 @@ static void kfd_process_destroy_pdds(struct kfd_process *p) kfree(pdd->qpd.doorbell_bitmap); idr_destroy(&pdd->alloc_idr); + /* + * before destroying pdd, make sure to report availability + * for auto suspend + */ + if (pdd->runtime_inuse) { + pm_runtime_mark_last_busy(pdd->dev->ddev->dev); + pm_runtime_put_autosuspend(pdd->dev->ddev->dev); + pdd->runtime_inuse = false; + } + kfree(pdd); } } @@ -844,6 +855,7 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, pdd->process = p; pdd->bound = PDD_UNBOUND; pdd->already_dequeued = false; + pdd->runtime_inuse = false; list_add(&pdd->per_device_list, &p->per_device_data); /* Init idr used for memory handle translation */ @@ -933,15 +945,41 @@ struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, return ERR_PTR(-ENOMEM); } + /* + * signal runtime-pm system to auto resume and prevent + * further runtime suspend once device pdd is created until + * pdd is destroyed. + */ + if (!pdd->runtime_inuse) { + err = pm_runtime_get_sync(dev->ddev->dev); + if (err < 0) + return ERR_PTR(err); + } + err = kfd_iommu_bind_process_to_device(pdd); if (err) - return ERR_PTR(err); + goto out; err = kfd_process_device_init_vm(pdd, NULL); if (err) - return ERR_PTR(err); + goto out; + + /* + * make sure that runtime_usage counter is incremented just once + * per pdd + */ + pdd->runtime_inuse = true; return pdd; + +out: + /* balance runpm reference count and exit with error */ + if (!pdd->runtime_inuse) { + pm_runtime_mark_last_busy(dev->ddev->dev); + pm_runtime_put_autosuspend(dev->ddev->dev); + } + + return ERR_PTR(err); } struct kfd_process_device *kfd_get_first_process_device_data( |