diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 40 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 21 |
6 files changed, 64 insertions, 50 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 297484ca7d19..222f1df1a6b6 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1291,18 +1291,6 @@ static int kfd_ioctl_alloc_memory_of_gpu(struct file *filep, return -EINVAL; } - if (flags & KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL) { - if (args->size != kfd_doorbell_process_slice(dev)) - return -EINVAL; - offset = kfd_get_process_doorbells(dev, p); - } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP) { - if (args->size != PAGE_SIZE) - return -EINVAL; - offset = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd); - if (!offset) - return -ENOMEM; - } - mutex_lock(&p->mutex); pdd = kfd_bind_process_to_device(dev, p); @@ -1311,6 +1299,24 @@ static int kfd_ioctl_alloc_memory_of_gpu(struct file *filep, goto err_unlock; } + if (flags & KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL) { + if (args->size != kfd_doorbell_process_slice(dev)) { + err = -EINVAL; + goto err_unlock; + } + offset = kfd_get_process_doorbells(pdd); + } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP) { + if (args->size != PAGE_SIZE) { + err = -EINVAL; + goto err_unlock; + } + offset = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd); + if (!offset) { + err = -ENOMEM; + goto err_unlock; + } + } + err = amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( dev->kgd, args->va_addr, args->size, pdd->vm, (struct kgd_mem **) &mem, &offset, diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index e3fc6ed7b79c..135001a404bc 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -583,6 +583,8 @@ struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, atomic_set(&kfd->sram_ecc_flag, 0); + ida_init(&kfd->doorbell_ida); + return kfd; } @@ -798,6 +800,7 @@ void kgd2kfd_device_exit(struct kfd_dev *kfd) kfd_interrupt_exit(kfd); kfd_topology_remove_device(kfd); kfd_doorbell_fini(kfd); + ida_destroy(&kfd->doorbell_ida); kfd_gtt_sa_fini(kfd); amdgpu_amdkfd_free_gtt_mem(kfd->kgd, kfd->gtt_mem); if (kfd->gws) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index ed362ab8ec21..62504d5fa42b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -191,9 +191,8 @@ static int allocate_doorbell(struct qcm_process_device *qpd, struct queue *q) } q->properties.doorbell_off = - kfd_get_doorbell_dw_offset_in_bar(dev, q->process, + kfd_get_doorbell_dw_offset_in_bar(dev, qpd_to_pdd(qpd), q->doorbell_id); - return 0; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c index 8e0c00b9555e..768d153acff4 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c @@ -31,9 +31,6 @@ * kernel queues using the first doorbell page reserved for the kernel. */ -static DEFINE_IDA(doorbell_ida); -static unsigned int max_doorbell_slices; - /* * Each device exposes a doorbell aperture, a PCI MMIO aperture that * receives 32-bit writes that are passed to queues as wptr values. @@ -84,9 +81,9 @@ int kfd_doorbell_init(struct kfd_dev *kfd) else return -ENOSPC; - if (!max_doorbell_slices || - doorbell_process_limit < max_doorbell_slices) - max_doorbell_slices = doorbell_process_limit; + if (!kfd->max_doorbell_slices || + doorbell_process_limit < kfd->max_doorbell_slices) + kfd->max_doorbell_slices = doorbell_process_limit; kfd->doorbell_base = kfd->shared_resources.doorbell_physical_address + doorbell_start_offset; @@ -130,6 +127,7 @@ int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, struct vm_area_struct *vma) { phys_addr_t address; + struct kfd_process_device *pdd; /* * For simplicitly we only allow mapping of the entire doorbell @@ -138,9 +136,12 @@ int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, if (vma->vm_end - vma->vm_start != kfd_doorbell_process_slice(dev)) return -EINVAL; - /* Calculate physical address of doorbell */ - address = kfd_get_process_doorbells(dev, process); + pdd = kfd_get_process_device_data(dev, process); + if (!pdd) + return -EINVAL; + /* Calculate physical address of doorbell */ + address = kfd_get_process_doorbells(pdd); vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE | VM_DONTDUMP | VM_PFNMAP; @@ -226,7 +227,7 @@ void write_kernel_doorbell64(void __iomem *db, u64 value) } unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, - struct kfd_process *process, + struct kfd_process_device *pdd, unsigned int doorbell_id) { /* @@ -236,7 +237,7 @@ unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, * units regardless of the ASIC-dependent doorbell size. */ return kfd->doorbell_base_dw_offset + - process->doorbell_index + pdd->doorbell_index * kfd_doorbell_process_slice(kfd) / sizeof(u32) + doorbell_id * kfd->device_info->doorbell_size / sizeof(u32); } @@ -251,25 +252,24 @@ uint64_t kfd_get_number_elems(struct kfd_dev *kfd) } -phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, - struct kfd_process *process) +phys_addr_t kfd_get_process_doorbells(struct kfd_process_device *pdd) { - return dev->doorbell_base + - process->doorbell_index * kfd_doorbell_process_slice(dev); + return pdd->dev->doorbell_base + + pdd->doorbell_index * kfd_doorbell_process_slice(pdd->dev); } -int kfd_alloc_process_doorbells(struct kfd_process *process) +int kfd_alloc_process_doorbells(struct kfd_dev *kfd, unsigned int *doorbell_index) { - int r = ida_simple_get(&doorbell_ida, 1, max_doorbell_slices, + int r = ida_simple_get(&kfd->doorbell_ida, 1, kfd->max_doorbell_slices, GFP_KERNEL); if (r > 0) - process->doorbell_index = r; + *doorbell_index = r; return r; } -void kfd_free_process_doorbells(struct kfd_process *process) +void kfd_free_process_doorbells(struct kfd_dev *kfd, unsigned int doorbell_index) { - if (process->doorbell_index) - ida_simple_remove(&doorbell_ida, process->doorbell_index); + if (doorbell_index) + ida_simple_remove(&kfd->doorbell_ida, doorbell_index); } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 8c2b8ccd27fb..739db04080d0 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -314,6 +314,9 @@ struct kfd_dev { spinlock_t smi_lock; uint32_t reset_seq_num; + + struct ida doorbell_ida; + unsigned int max_doorbell_slices; }; enum kfd_mempool { @@ -699,6 +702,7 @@ struct kfd_process_device { struct attribute attr_evict; struct kobject *kobj_stats; + unsigned int doorbell_index; }; #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) @@ -736,7 +740,6 @@ struct kfd_process { struct mmu_notifier mmu_notifier; uint16_t pasid; - unsigned int doorbell_index; /* * List of kfd_process_device structures, @@ -869,13 +872,13 @@ u32 read_kernel_doorbell(u32 __iomem *db); void write_kernel_doorbell(void __iomem *db, u32 value); void write_kernel_doorbell64(void __iomem *db, u64 value); unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, - struct kfd_process *process, + struct kfd_process_device *pdd, unsigned int doorbell_id); -phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, - struct kfd_process *process); -int kfd_alloc_process_doorbells(struct kfd_process *process); -void kfd_free_process_doorbells(struct kfd_process *process); - +phys_addr_t kfd_get_process_doorbells(struct kfd_process_device *pdd); +int kfd_alloc_process_doorbells(struct kfd_dev *kfd, + unsigned int *doorbell_index); +void kfd_free_process_doorbells(struct kfd_dev *kfd, + unsigned int doorbell_index); /* GTT Sub-Allocator */ int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index ad53b2668221..e2b6d31d93ce 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -876,6 +876,8 @@ static void kfd_process_destroy_pdds(struct kfd_process *p) kfree(pdd->qpd.doorbell_bitmap); idr_destroy(&pdd->alloc_idr); + kfd_free_process_doorbells(pdd->dev, pdd->doorbell_index); + /* * before destroying pdd, make sure to report availability * for auto suspend @@ -932,8 +934,6 @@ static void kfd_process_wq_release(struct work_struct *work) kfd_event_free_process(p); kfd_pasid_free(p->pasid); - kfd_free_process_doorbells(p); - mutex_destroy(&p->mutex); put_task_struct(p->lead_thread); @@ -1111,9 +1111,6 @@ static struct kfd_process *create_process(const struct task_struct *thread) if (process->pasid == 0) goto err_alloc_pasid; - if (kfd_alloc_process_doorbells(process) < 0) - goto err_alloc_doorbells; - err = pqm_init(&process->pqm, process); if (err != 0) goto err_process_pqm_init; @@ -1141,8 +1138,6 @@ err_register_notifier: err_init_apertures: pqm_uninit(&process->pqm); err_process_pqm_init: - kfd_free_process_doorbells(process); -err_alloc_doorbells: kfd_pasid_free(process->pasid); err_alloc_pasid: mutex_destroy(&process->mutex); @@ -1205,10 +1200,14 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, if (!pdd) return NULL; + if (kfd_alloc_process_doorbells(dev, &pdd->doorbell_index) < 0) { + pr_err("Failed to alloc doorbell for pdd\n"); + goto err_free_pdd; + } + if (init_doorbell_bitmap(&pdd->qpd, dev)) { pr_err("Failed to init doorbell for process\n"); - kfree(pdd); - return NULL; + goto err_free_pdd; } pdd->dev = dev; @@ -1231,6 +1230,10 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, idr_init(&pdd->alloc_idr); return pdd; + +err_free_pdd: + kfree(pdd); + return NULL; } /** |