diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_process.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 50 |
1 files changed, 40 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 1711ad0642f74..1d80b4f7c681c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -332,6 +332,7 @@ static void kfd_process_destroy_pdds(struct kfd_process *p) free_pages((unsigned long)pdd->qpd.cwsr_kaddr, get_order(KFD_CWSR_TBA_TMA_SIZE)); + kfree(pdd->qpd.doorbell_bitmap); idr_destroy(&pdd->alloc_idr); kfree(pdd); @@ -451,7 +452,8 @@ static int kfd_process_init_cwsr_apu(struct kfd_process *p, struct file *filep) if (!dev->cwsr_enabled || qpd->cwsr_kaddr || qpd->cwsr_base) continue; - offset = (dev->id | KFD_MMAP_RESERVED_MEM_MASK) << PAGE_SHIFT; + offset = (KFD_MMAP_TYPE_RESERVED_MEM | KFD_MMAP_GPU_ID(dev->id)) + << PAGE_SHIFT; qpd->tba_addr = (int64_t)vm_mmap(filep, 0, KFD_CWSR_TBA_TMA_SIZE, PROT_READ | PROT_EXEC, MAP_SHARED, offset); @@ -585,6 +587,31 @@ err_alloc_process: return ERR_PTR(err); } +static int init_doorbell_bitmap(struct qcm_process_device *qpd, + struct kfd_dev *dev) +{ + unsigned int i; + + if (!KFD_IS_SOC15(dev->device_info->asic_family)) + return 0; + + qpd->doorbell_bitmap = + kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, + BITS_PER_BYTE), GFP_KERNEL); + if (!qpd->doorbell_bitmap) + return -ENOMEM; + + /* Mask out any reserved doorbells */ + for (i = 0; i < KFD_MAX_NUM_OF_QUEUES_PER_PROCESS; i++) + if ((dev->shared_resources.reserved_doorbell_mask & i) == + dev->shared_resources.reserved_doorbell_val) { + set_bit(i, qpd->doorbell_bitmap); + pr_debug("reserved doorbell 0x%03x\n", i); + } + + return 0; +} + struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, struct kfd_process *p) { @@ -606,6 +633,12 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, if (!pdd) return NULL; + if (init_doorbell_bitmap(&pdd->qpd, dev)) { + pr_err("Failed to init doorbell for process\n"); + kfree(pdd); + return NULL; + } + pdd->dev = dev; INIT_LIST_HEAD(&pdd->qpd.queues_list); INIT_LIST_HEAD(&pdd->qpd.priv_queue_list); @@ -808,7 +841,7 @@ struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm) * Eviction is reference-counted per process-device. This means multiple * evictions from different sources can be nested safely. */ -static int process_evict_queues(struct kfd_process *p) +int kfd_process_evict_queues(struct kfd_process *p) { struct kfd_process_device *pdd; int r = 0; @@ -844,7 +877,7 @@ fail: } /* process_restore_queues - Restore all user queues of a process */ -static int process_restore_queues(struct kfd_process *p) +int kfd_process_restore_queues(struct kfd_process *p) { struct kfd_process_device *pdd; int r, ret = 0; @@ -886,7 +919,7 @@ static void evict_process_worker(struct work_struct *work) flush_delayed_work(&p->restore_work); pr_debug("Started evicting pasid %d\n", p->pasid); - ret = process_evict_queues(p); + ret = kfd_process_evict_queues(p); if (!ret) { dma_fence_signal(p->ef); dma_fence_put(p->ef); @@ -946,7 +979,7 @@ static void restore_process_worker(struct work_struct *work) return; } - ret = process_restore_queues(p); + ret = kfd_process_restore_queues(p); if (!ret) pr_debug("Finished restoring pasid %d\n", p->pasid); else @@ -963,7 +996,7 @@ void kfd_suspend_all_processes(void) cancel_delayed_work_sync(&p->eviction_work); cancel_delayed_work_sync(&p->restore_work); - if (process_evict_queues(p)) + if (kfd_process_evict_queues(p)) pr_err("Failed to suspend process %d\n", p->pasid); dma_fence_signal(p->ef); dma_fence_put(p->ef); @@ -989,15 +1022,12 @@ int kfd_resume_all_processes(void) return ret; } -int kfd_reserved_mem_mmap(struct kfd_process *process, +int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, struct vm_area_struct *vma) { - struct kfd_dev *dev = kfd_device_by_id(vma->vm_pgoff); struct kfd_process_device *pdd; struct qcm_process_device *qpd; - if (!dev) - return -EINVAL; if ((vma->vm_end - vma->vm_start) != KFD_CWSR_TBA_TMA_SIZE) { pr_err("Incorrect CWSR mapping size.\n"); return -EINVAL; |