On 2021-04-07 7:12 p.m., Felix Kuehling
wrote:
amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu needs the drm_priv to allow mmap to access the BO through the corresponding file descriptor. Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 14 ++-- .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 69 +++++++++++-------- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 5 +- 3 files changed, 50 insertions(+), 38 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index 5ffb07b02810..0d59bebd92af 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -236,20 +236,20 @@ uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *s /* GPUVM API */ int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd, struct file *filp, u32 pasid, - void **vm, void **process_info, + void **process_info, struct dma_fence **ef); -void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm); -uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm); +void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *drm_priv); +uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *drm_priv); int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( struct kgd_dev *kgd, uint64_t va, uint64_t size, - void *vm, struct kgd_mem **mem, + void *drm_priv, struct kgd_mem **mem, uint64_t *offset, uint32_t flags); int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( struct kgd_dev *kgd, struct kgd_mem *mem, uint64_t *size); int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( - struct kgd_dev *kgd, struct kgd_mem *mem, void *vm); + struct kgd_dev *kgd, struct kgd_mem *mem, void *drm_priv); int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( - struct kgd_dev *kgd, struct kgd_mem *mem, void *vm); + struct kgd_dev *kgd, struct kgd_mem *mem, void *drm_priv); int amdgpu_amdkfd_gpuvm_sync_memory( struct kgd_dev *kgd, struct kgd_mem *mem, bool intr); int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_dev *kgd, @@ -260,7 +260,7 @@ int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd, struct kfd_vm_fault_info *info); int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd, struct dma_buf *dmabuf, - uint64_t va, void *vm, + uint64_t va, void *drm_priv, struct kgd_mem **mem, uint64_t *size, uint64_t *mmap_offset); int amdgpu_amdkfd_get_tile_config(struct kgd_dev *kgd, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 36012229ccc1..95442bcd60fb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -951,6 +951,13 @@ static int process_update_pds(struct amdkfd_process_info *process_info, return 0; } +static struct amdgpu_vm *drm_priv_to_vm(struct drm_file *drm_priv) +{ + struct amdgpu_fpriv *fpriv = drm_priv->driver_priv; + + return &fpriv->vm; +} + static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info, struct dma_fence **ef) { @@ -1039,15 +1046,19 @@ static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info, int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd, struct file *filp, u32 pasid, - void **vm, void **process_info, + void **process_info, struct dma_fence **ef) { struct amdgpu_device *adev = get_amdgpu_device(kgd); - struct drm_file *drm_priv = filp->private_data; - struct amdgpu_fpriv *drv_priv = drm_priv->driver_priv; - struct amdgpu_vm *avm = &drv_priv->vm; + struct amdgpu_fpriv *drv_priv; + struct amdgpu_vm *avm; int ret; + ret = amdgpu_file_to_fpriv(filp, &drv_priv); + if (ret) + return ret; + avm = &drv_priv->vm; + /* Already a compute VM? */ if (avm->process_info) return -EINVAL; @@ -1062,7 +1073,7 @@ int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd, if (ret) return ret; - *vm = (void *)avm; + amdgpu_vm_set_task_info(avm); return 0; } @@ -1103,15 +1114,17 @@ void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev, } } -void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm) +void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *drm_priv) { struct amdgpu_device *adev = get_amdgpu_device(kgd); - struct amdgpu_vm *avm = (struct amdgpu_vm *)vm; + struct amdgpu_vm *avm; - if (WARN_ON(!kgd || !vm)) + if (WARN_ON(!kgd || !drm_priv)) return; - pr_debug("Releasing process vm %p\n", vm); + avm = drm_priv_to_vm(drm_priv); + + pr_debug("Releasing process vm %p\n", avm); /* The original pasid of amdgpu vm has already been * released during making a amdgpu vm to a compute vm @@ -1122,9 +1135,9 @@ void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm) amdgpu_vm_release_compute(adev, avm); } -uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm) +uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *drm_priv) { - struct amdgpu_vm *avm = (struct amdgpu_vm *)vm; + struct amdgpu_vm *avm = drm_priv_to_vm(drm_priv); struct amdgpu_bo *pd = avm->root.base.bo; struct amdgpu_device *adev = amdgpu_ttm_adev(pd->tbo.bdev); @@ -1135,11 +1148,11 @@ uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm) int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( struct kgd_dev *kgd, uint64_t va, uint64_t size, - void *vm, struct kgd_mem **mem, + void *drm_priv, struct kgd_mem **mem, uint64_t *offset, uint32_t flags) { struct amdgpu_device *adev = get_amdgpu_device(kgd); - struct amdgpu_vm *avm = (struct amdgpu_vm *)vm; + struct amdgpu_vm *avm = drm_priv_to_vm(drm_priv); enum ttm_bo_type bo_type = ttm_bo_type_device; struct sg_table *sg = NULL; uint64_t user_addr = 0; @@ -1350,10 +1363,10 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( } int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( - struct kgd_dev *kgd, struct kgd_mem *mem, void *vm) + struct kgd_dev *kgd, struct kgd_mem *mem, void *drm_priv) { struct amdgpu_device *adev = get_amdgpu_device(kgd); - struct amdgpu_vm *avm = (struct amdgpu_vm *)vm; + struct amdgpu_vm *avm = drm_priv_to_vm(drm_priv); int ret; struct amdgpu_bo *bo; uint32_t domain; @@ -1394,9 +1407,9 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( pr_debug("Map VA 0x%llx - 0x%llx to vm %p domain %s\n", mem->va, mem->va + bo_size * (1 + mem->aql_queue), - vm, domain_string(domain)); + avm, domain_string(domain)); - ret = reserve_bo_and_vm(mem, vm, &ctx); + ret = reserve_bo_and_vm(mem, avm, &ctx); if (unlikely(ret)) goto out; @@ -1440,7 +1453,7 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( } list_for_each_entry(entry, &mem->bo_va_list, bo_list) { - if (entry->bo_va->base.vm == vm && !entry->is_mapped) { + if (entry->bo_va->base.vm == avm && !entry->is_mapped) { pr_debug("\t map VA 0x%llx - 0x%llx in entry %p\n", entry->va, entry->va + bo_size, entry); @@ -1452,7 +1465,7 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( goto map_bo_to_gpuvm_failed; } - ret = vm_update_pds(vm, ctx.sync); + ret = vm_update_pds(avm, ctx.sync); if (ret) { pr_err("Failed to update page directories\n"); goto map_bo_to_gpuvm_failed; @@ -1488,11 +1501,11 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( } int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( - struct kgd_dev *kgd, struct kgd_mem *mem, void *vm) + struct kgd_dev *kgd, struct kgd_mem *mem, void *drm_priv) { struct amdgpu_device *adev = get_amdgpu_device(kgd); - struct amdkfd_process_info *process_info = - ((struct amdgpu_vm *)vm)->process_info; + struct amdgpu_vm *avm = drm_priv_to_vm(drm_priv); + struct amdkfd_process_info *process_info = avm->process_info; unsigned long bo_size = mem->bo->tbo.base.size; struct kfd_bo_va_list *entry; struct bo_vm_reservation_context ctx; @@ -1500,7 +1513,7 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( mutex_lock(&mem->lock); - ret = reserve_bo_and_cond_vms(mem, vm, BO_VM_MAPPED, &ctx); + ret = reserve_bo_and_cond_vms(mem, avm, BO_VM_MAPPED, &ctx); if (unlikely(ret)) goto out; /* If no VMs were reserved, it means the BO wasn't actually mapped */ @@ -1509,17 +1522,17 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( goto unreserve_out; } - ret = vm_validate_pt_pd_bos((struct amdgpu_vm *)vm); + ret = vm_validate_pt_pd_bos(avm); if (unlikely(ret)) goto unreserve_out; pr_debug("Unmap VA 0x%llx - 0x%llx from vm %p\n", mem->va, mem->va + bo_size * (1 + mem->aql_queue), - vm); + avm); list_for_each_entry(entry, &mem->bo_va_list, bo_list) { - if (entry->bo_va->base.vm == vm && entry->is_mapped) { + if (entry->bo_va->base.vm == avm && entry->is_mapped) { pr_debug("\t unmap VA 0x%llx - 0x%llx from entry %p\n", entry->va, entry->va + bo_size, @@ -1645,14 +1658,14 @@ int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd, int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd, struct dma_buf *dma_buf, - uint64_t va, void *vm, + uint64_t va, void *drm_priv, struct kgd_mem **mem, uint64_t *size, uint64_t *mmap_offset) { struct amdgpu_device *adev = (struct amdgpu_device *)kgd; + struct amdgpu_vm *avm = drm_priv_to_vm(drm_priv); struct drm_gem_object *obj; struct amdgpu_bo *bo; - struct amdgpu_vm *avm = (struct amdgpu_vm *)vm; if (dma_buf->ops != &amdgpu_dmabuf_ops) /* Can't handle non-graphics buffers */ diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index d97e330a5022..bad0ecd6ef87 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1383,13 +1383,12 @@ int kfd_process_device_init_vm(struct kfd_process_device *pdd, ret = amdgpu_amdkfd_gpuvm_acquire_process_vm( dev->kgd, drm_file, p->pasid, - &pdd->vm, &p->kgd_process_info, &p->ef); + &p->kgd_process_info, &p->ef); if (ret) { pr_err("Failed to create process VM object\n"); return ret; } - - amdgpu_vm_set_task_info(pdd->vm); + pdd->vm = drm_file->private_data;
Maybe it is better to read, rename pdd->vm to pdd->drm_priv as well?
Philip
ret = kfd_process_device_reserve_ib_mem(pdd); if (ret)
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