Merge tag 'drm-amdkfd-next-2018-03-27' of git://people.freedesktop.org/~gabbayo/linux into drm-next

- GPUVM support for dGPUs
- KFD events support for dGPUs
- Fix live-lock situation when restoring multiple evicted processes
- Fix VM page table allocation on large-bar systems
- Fix for build failure on frv architecture

* tag 'drm-amdkfd-next-2018-03-27' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: Use ordered workqueue to restore processes
  drm/amdgpu: Fix acquiring VM on large-BAR systems
  drm/amdkfd: Add module option for testing large-BAR functionality
  drm/amdkfd: Kmap event page for dGPUs
  drm/amdkfd: Add ioctls for GPUVM memory management
  drm/amdkfd: Add TC flush on VMID deallocation for Hawaii
  drm/amdkfd: Allocate CWSR trap handler memory for dGPUs
  drm/amdkfd: Add per-process IDR for buffer handles
  drm/amdkfd: Aperture setup for dGPUs
  drm/amdkfd: Remove limit on number of GPUs
  drm/amdkfd: Populate DRM render device minor
  drm/amdkfd: Create KFD VMs on demand
  drm/amdgpu: Add kfd2kgd interface to acquire an existing VM
  drm/amdgpu: Add helper to turn an existing VM into a compute VM
  drm/amdgpu: Fix initial validation of PD BO for KFD VMs
  drm/amdgpu: Move KFD-specific fields into struct amdgpu_vm
  drm/amdkfd: fix uninitialized variable use
  drm/amdkfd: add missing include of mm.h

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h

@@ -26,6 +26,7 @@
 #define AMDGPU_AMDKFD_H_INCLUDED
 
 #include <linux/types.h>
+#include <linux/mm.h>
 #include <linux/mmu_context.h>
 #include <kgd_kfd_interface.h>
 #include <drm/ttm/ttm_execbuf_util.h>
@@ -92,27 +93,6 @@ struct amdkfd_process_info {
 	struct amdgpu_amdkfd_fence *eviction_fence;
 };
 
-/* struct amdkfd_vm -
- * For Memory Eviction KGD requires a mechanism to keep track of all KFD BOs
- * belonging to a KFD process. All the VMs belonging to the same process point
- * to the same amdkfd_process_info.
- */
-struct amdkfd_vm {
-	/* Keep base as the first parameter for pointer compatibility between
-	 * amdkfd_vm and amdgpu_vm.
-	 */
-	struct amdgpu_vm base;
-
-	/* List node in amdkfd_process_info.vm_list_head*/
-	struct list_head vm_list_node;
-
-	struct amdgpu_device *adev;
-	/* Points to the KFD process VM info*/
-	struct amdkfd_process_info *process_info;
-
-	uint64_t pd_phys_addr;
-};
-
 int amdgpu_amdkfd_init(void);
 void amdgpu_amdkfd_fini(void);
 
@@ -165,6 +145,12 @@ uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd);
 int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
 					  void **process_info,
 					  struct dma_fence **ef);
+int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd,
+					   struct file *filp,
+					   void **vm, void **process_info,
+					   struct dma_fence **ef);
+void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
+				    struct amdgpu_vm *vm);
 void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm);
 uint32_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm);
 int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c

@@ -205,6 +205,7 @@ static const struct kfd2kgd_calls kfd2kgd = {
 	.get_cu_info = get_cu_info,
 	.get_vram_usage = amdgpu_amdkfd_get_vram_usage,
 	.create_process_vm = amdgpu_amdkfd_gpuvm_create_process_vm,
+	.acquire_process_vm = amdgpu_amdkfd_gpuvm_acquire_process_vm,
 	.destroy_process_vm = amdgpu_amdkfd_gpuvm_destroy_process_vm,
 	.get_process_page_dir = amdgpu_amdkfd_gpuvm_get_process_page_dir,
 	.set_vm_context_page_table_base = set_vm_context_page_table_base,

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c

@@ -165,6 +165,7 @@ static const struct kfd2kgd_calls kfd2kgd = {
 	.get_cu_info = get_cu_info,
 	.get_vram_usage = amdgpu_amdkfd_get_vram_usage,
 	.create_process_vm = amdgpu_amdkfd_gpuvm_create_process_vm,
+	.acquire_process_vm = amdgpu_amdkfd_gpuvm_acquire_process_vm,
 	.destroy_process_vm = amdgpu_amdkfd_gpuvm_destroy_process_vm,
 	.get_process_page_dir = amdgpu_amdkfd_gpuvm_get_process_page_dir,
 	.set_vm_context_page_table_base = set_vm_context_page_table_base,

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

@@ -333,9 +333,9 @@ static int amdgpu_amdkfd_validate(void *param, struct amdgpu_bo *bo)
  * again. Page directories are only updated after updating page
  * tables.
  */
-static int vm_validate_pt_pd_bos(struct amdkfd_vm *vm)
+static int vm_validate_pt_pd_bos(struct amdgpu_vm *vm)
 {
-	struct amdgpu_bo *pd = vm->base.root.base.bo;
+	struct amdgpu_bo *pd = vm->root.base.bo;
 	struct amdgpu_device *adev = amdgpu_ttm_adev(pd->tbo.bdev);
 	struct amdgpu_vm_parser param;
 	uint64_t addr, flags = AMDGPU_PTE_VALID;
@@ -344,7 +344,7 @@ static int vm_validate_pt_pd_bos(struct amdkfd_vm *vm)
 	param.domain = AMDGPU_GEM_DOMAIN_VRAM;
 	param.wait = false;
 
-	ret = amdgpu_vm_validate_pt_bos(adev, &vm->base, amdgpu_amdkfd_validate,
+	ret = amdgpu_vm_validate_pt_bos(adev, vm, amdgpu_amdkfd_validate,
 					&param);
 	if (ret) {
 		pr_err("amdgpu: failed to validate PT BOs\n");
@@ -357,11 +357,11 @@ static int vm_validate_pt_pd_bos(struct amdkfd_vm *vm)
 		return ret;
 	}
 
-	addr = amdgpu_bo_gpu_offset(vm->base.root.base.bo);
+	addr = amdgpu_bo_gpu_offset(vm->root.base.bo);
 	amdgpu_gmc_get_vm_pde(adev, -1, &addr, &flags);
 	vm->pd_phys_addr = addr;
 
-	if (vm->base.use_cpu_for_update) {
+	if (vm->use_cpu_for_update) {
 		ret = amdgpu_bo_kmap(pd, NULL);
 		if (ret) {
 			pr_err("amdgpu: failed to kmap PD, ret=%d\n", ret);
@@ -415,14 +415,12 @@ static int vm_update_pds(struct amdgpu_vm *vm, struct amdgpu_sync *sync)
  * 4a.  Validate new page tables and directories
  */
 static int add_bo_to_vm(struct amdgpu_device *adev, struct kgd_mem *mem,
-		struct amdgpu_vm *avm, bool is_aql,
+		struct amdgpu_vm *vm, bool is_aql,
 		struct kfd_bo_va_list **p_bo_va_entry)
 {
 	int ret;
 	struct kfd_bo_va_list *bo_va_entry;
-	struct amdkfd_vm *kvm = container_of(avm,
-					     struct amdkfd_vm, base);
-	struct amdgpu_bo *pd = avm->root.base.bo;
+	struct amdgpu_bo *pd = vm->root.base.bo;
 	struct amdgpu_bo *bo = mem->bo;
 	uint64_t va = mem->va;
 	struct list_head *list_bo_va = &mem->bo_va_list;
@@ -441,10 +439,10 @@ static int add_bo_to_vm(struct amdgpu_device *adev, struct kgd_mem *mem,
 		return -ENOMEM;
 
 	pr_debug("\t add VA 0x%llx - 0x%llx to vm %p\n", va,
-			va + bo_size, avm);
+			va + bo_size, vm);
 
 	/* Add BO to VM internal data structures*/
-	bo_va_entry->bo_va = amdgpu_vm_bo_add(adev, avm, bo);
+	bo_va_entry->bo_va = amdgpu_vm_bo_add(adev, vm, bo);
 	if (!bo_va_entry->bo_va) {
 		ret = -EINVAL;
 		pr_err("Failed to add BO object to VM. ret == %d\n",
@@ -467,28 +465,28 @@ static int add_bo_to_vm(struct amdgpu_device *adev, struct kgd_mem *mem,
 	 * fence, so remove it temporarily.
 	 */
 	amdgpu_amdkfd_remove_eviction_fence(pd,
-					kvm->process_info->eviction_fence,
+					vm->process_info->eviction_fence,
 					NULL, NULL);
 
-	ret = amdgpu_vm_alloc_pts(adev, avm, va, amdgpu_bo_size(bo));
+	ret = amdgpu_vm_alloc_pts(adev, vm, va, amdgpu_bo_size(bo));
 	if (ret) {
 		pr_err("Failed to allocate pts, err=%d\n", ret);
 		goto err_alloc_pts;
 	}
 
-	ret = vm_validate_pt_pd_bos(kvm);
+	ret = vm_validate_pt_pd_bos(vm);
 	if (ret) {
 		pr_err("validate_pt_pd_bos() failed\n");
 		goto err_alloc_pts;
 	}
 
 	/* Add the eviction fence back */
-	amdgpu_bo_fence(pd, &kvm->process_info->eviction_fence->base, true);
+	amdgpu_bo_fence(pd, &vm->process_info->eviction_fence->base, true);
 
 	return 0;
 
 err_alloc_pts:
-	amdgpu_bo_fence(pd, &kvm->process_info->eviction_fence->base, true);
+	amdgpu_bo_fence(pd, &vm->process_info->eviction_fence->base, true);
 	amdgpu_vm_bo_rmv(adev, bo_va_entry->bo_va);
 	list_del(&bo_va_entry->bo_list);
 err_vmadd:
@@ -703,7 +701,6 @@ static int unmap_bo_from_gpuvm(struct amdgpu_device *adev,
 {
 	struct amdgpu_bo_va *bo_va = entry->bo_va;
 	struct amdgpu_vm *vm = bo_va->base.vm;
-	struct amdkfd_vm *kvm = container_of(vm, struct amdkfd_vm, base);
 	struct amdgpu_bo *pd = vm->root.base.bo;
 
 	/* Remove eviction fence from PD (and thereby from PTs too as
@@ -713,14 +710,14 @@ static int unmap_bo_from_gpuvm(struct amdgpu_device *adev,
 	 * trigger the eviction fence.
 	 */
 	amdgpu_amdkfd_remove_eviction_fence(pd,
-					    kvm->process_info->eviction_fence,
+					    vm->process_info->eviction_fence,
 					    NULL, NULL);
 	amdgpu_vm_bo_unmap(adev, bo_va, entry->va);
 
 	amdgpu_vm_clear_freed(adev, vm, &bo_va->last_pt_update);
 
 	/* Add the eviction fence back */
-	amdgpu_bo_fence(pd, &kvm->process_info->eviction_fence->base, true);
+	amdgpu_bo_fence(pd, &vm->process_info->eviction_fence->base, true);
 
 	sync_vm_fence(adev, sync, bo_va->last_pt_update);
 
@@ -780,7 +777,7 @@ static int map_bo_to_gpuvm(struct amdgpu_device *adev,
 
 static int process_validate_vms(struct amdkfd_process_info *process_info)
 {
-	struct amdkfd_vm *peer_vm;
+	struct amdgpu_vm *peer_vm;
 	int ret;
 
 	list_for_each_entry(peer_vm, &process_info->vm_list_head,
@@ -796,12 +793,12 @@ static int process_validate_vms(struct amdkfd_process_info *process_info)
 static int process_update_pds(struct amdkfd_process_info *process_info,
 			      struct amdgpu_sync *sync)
 {
-	struct amdkfd_vm *peer_vm;
+	struct amdgpu_vm *peer_vm;
 	int ret;
 
 	list_for_each_entry(peer_vm, &process_info->vm_list_head,
 			    vm_list_node) {
-		ret = vm_update_pds(&peer_vm->base, sync);
+		ret = vm_update_pds(peer_vm, sync);
 		if (ret)
 			return ret;
 	}
@@ -809,33 +806,16 @@ static int process_update_pds(struct amdkfd_process_info *process_info,
 	return 0;
 }
 
-int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
-					  void **process_info,
+static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info,
 		       struct dma_fence **ef)
 {
+	struct amdkfd_process_info *info = NULL;
 	int ret;
-	struct amdkfd_vm *new_vm;
-	struct amdkfd_process_info *info;
-	struct amdgpu_device *adev = get_amdgpu_device(kgd);
-
-	new_vm = kzalloc(sizeof(*new_vm), GFP_KERNEL);
-	if (!new_vm)
-		return -ENOMEM;
-
-	/* Initialize the VM context, allocate the page directory and zero it */
-	ret = amdgpu_vm_init(adev, &new_vm->base, AMDGPU_VM_CONTEXT_COMPUTE, 0);
-	if (ret) {
-		pr_err("Failed init vm ret %d\n", ret);
-		goto vm_init_fail;
-	}
-	new_vm->adev = adev;
 
 	if (!*process_info) {
 		info = kzalloc(sizeof(*info), GFP_KERNEL);
-		if (!info) {
-			ret = -ENOMEM;
-			goto alloc_process_info_fail;
-		}
+		if (!info)
+			return -ENOMEM;
 
 		mutex_init(&info->lock);
 		INIT_LIST_HEAD(&info->vm_list_head);
@@ -846,6 +826,7 @@ int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
 						   current->mm);
 		if (!info->eviction_fence) {
 			pr_err("Failed to create eviction fence\n");
+			ret = -ENOMEM;
 			goto create_evict_fence_fail;
 		}
 
@@ -853,57 +834,137 @@ int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
 		*ef = dma_fence_get(&info->eviction_fence->base);
 	}
 
-	new_vm->process_info = *process_info;
-
-	mutex_lock(&new_vm->process_info->lock);
-	list_add_tail(&new_vm->vm_list_node,
-			&(new_vm->process_info->vm_list_head));
-	new_vm->process_info->n_vms++;
-	mutex_unlock(&new_vm->process_info->lock);
+	vm->process_info = *process_info;
 
-	*vm = (void *) new_vm;
-
-	pr_debug("Created process vm %p\n", *vm);
+	/* Validate page directory and attach eviction fence */
+	ret = amdgpu_bo_reserve(vm->root.base.bo, true);
+	if (ret)
+		goto reserve_pd_fail;
+	ret = vm_validate_pt_pd_bos(vm);
+	if (ret) {
+		pr_err("validate_pt_pd_bos() failed\n");
+		goto validate_pd_fail;
+	}
+	ret = ttm_bo_wait(&vm->root.base.bo->tbo, false, false);
+	if (ret)
+		goto wait_pd_fail;
+	amdgpu_bo_fence(vm->root.base.bo,
+			&vm->process_info->eviction_fence->base, true);
+	amdgpu_bo_unreserve(vm->root.base.bo);
+
+	/* Update process info */
+	mutex_lock(&vm->process_info->lock);
+	list_add_tail(&vm->vm_list_node,
+			&(vm->process_info->vm_list_head));
+	vm->process_info->n_vms++;
+	mutex_unlock(&vm->process_info->lock);
 
-	return ret;
+	return 0;
 
+wait_pd_fail:
+validate_pd_fail:
+	amdgpu_bo_unreserve(vm->root.base.bo);
+reserve_pd_fail:
+	vm->process_info = NULL;
+	if (info) {
+		/* Two fence references: one in info and one in *ef */
+		dma_fence_put(&info->eviction_fence->base);
+		dma_fence_put(*ef);
+		*ef = NULL;
+		*process_info = NULL;
 create_evict_fence_fail:
 		mutex_destroy(&info->lock);
 		kfree(info);
-alloc_process_info_fail:
-	amdgpu_vm_fini(adev, &new_vm->base);
-vm_init_fail:
-	kfree(new_vm);
+	}
 	return ret;
+}
+
+int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
+					  void **process_info,
+					  struct dma_fence **ef)
+{
+	struct amdgpu_device *adev = get_amdgpu_device(kgd);
+	struct amdgpu_vm *new_vm;
+	int ret;
+
+	new_vm = kzalloc(sizeof(*new_vm), GFP_KERNEL);
+	if (!new_vm)
+		return -ENOMEM;
+
+	/* Initialize AMDGPU part of the VM */
+	ret = amdgpu_vm_init(adev, new_vm, AMDGPU_VM_CONTEXT_COMPUTE, 0);
+	if (ret) {
+		pr_err("Failed init vm ret %d\n", ret);
+		goto amdgpu_vm_init_fail;
+	}
 
+	/* Initialize KFD part of the VM and process info */
+	ret = init_kfd_vm(new_vm, process_info, ef);
+	if (ret)
+		goto init_kfd_vm_fail;
+
+	*vm = (void *) new_vm;
+
+	return 0;
+
+init_kfd_vm_fail:
+	amdgpu_vm_fini(adev, new_vm);
+amdgpu_vm_init_fail:
+	kfree(new_vm);
+	return ret;
 }
 
-void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm)
+int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd,
+					   struct file *filp,
+					   void **vm, void **process_info,
+					   struct dma_fence **ef)
 {
 	struct amdgpu_device *adev = get_amdgpu_device(kgd);
-	struct amdkfd_vm *kfd_vm = (struct amdkfd_vm *) vm;
-	struct amdgpu_vm *avm = &kfd_vm->base;
-	struct amdgpu_bo *pd;
-	struct amdkfd_process_info *process_info;
+	struct drm_file *drm_priv = filp->private_data;
+	struct amdgpu_fpriv *drv_priv = drm_priv->driver_priv;
+	struct amdgpu_vm *avm = &drv_priv->vm;
+	int ret;
 
-	if (WARN_ON(!kgd || !vm))
+	/* Already a compute VM? */
+	if (avm->process_info)
+		return -EINVAL;
+
+	/* Convert VM into a compute VM */
+	ret = amdgpu_vm_make_compute(adev, avm);
+	if (ret)
+		return ret;
+
+	/* Initialize KFD part of the VM and process info */
+	ret = init_kfd_vm(avm, process_info, ef);
+	if (ret)
+		return ret;
+
+	*vm = (void *)avm;
+
+	return 0;
+}
+
+void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
+				    struct amdgpu_vm *vm)
+{
+	struct amdkfd_process_info *process_info = vm->process_info;
+	struct amdgpu_bo *pd = vm->root.base.bo;
+
+	if (!process_info)
 		return;
 
-	pr_debug("Destroying process vm %p\n", vm);
 	/* Release eviction fence from PD */
-	pd = avm->root.base.bo;
 	amdgpu_bo_reserve(pd, false);
 	amdgpu_bo_fence(pd, NULL, false);
 	amdgpu_bo_unreserve(pd);
 
-	process_info = kfd_vm->process_info;
-
+	/* Update process info */
 	mutex_lock(&process_info->lock);
 	process_info->n_vms--;
-	list_del(&kfd_vm->vm_list_node);
+	list_del(&vm->vm_list_node);
 	mutex_unlock(&process_info->lock);
 
-	/* Release per-process resources */
+	/* Release per-process resources when last compute VM is destroyed */
 	if (!process_info->n_vms) {
 		WARN_ON(!list_empty(&process_info->kfd_bo_list));
 
@@ -911,6 +972,17 @@ void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm)
 		mutex_destroy(&process_info->lock);
 		kfree(process_info);
 	}
+}
+
+void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm)
+{
+	struct amdgpu_device *adev = get_amdgpu_device(kgd);
+	struct amdgpu_vm *avm = (struct amdgpu_vm *)vm;
+
+	if (WARN_ON(!kgd || !vm))
+		return;
+
+	pr_debug("Destroying process vm %p\n", vm);
 
 	/* Release the VM context */
 	amdgpu_vm_fini(adev, avm);
@@ -919,7 +991,7 @@ void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm)
 
 uint32_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm)
 {
-	struct amdkfd_vm *avm = (struct amdkfd_vm *)vm;
+	struct amdgpu_vm *avm = (struct amdgpu_vm *)vm;
 
 	return avm->pd_phys_addr >> AMDGPU_GPU_PAGE_SHIFT;
 }
@@ -930,7 +1002,7 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
 		uint64_t *offset, uint32_t flags)
 {
 	struct amdgpu_device *adev = get_amdgpu_device(kgd);
-	struct amdkfd_vm *kfd_vm = (struct amdkfd_vm *)vm;
+	struct amdgpu_vm *avm = (struct amdgpu_vm *)vm;
 	struct amdgpu_bo *bo;
 	int byte_align;
 	u32 alloc_domain;
@@ -1010,8 +1082,8 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
 	(*mem)->va = va;
 	(*mem)->domain = alloc_domain;
 	(*mem)->mapped_to_gpu_memory = 0;
-	(*mem)->process_info = kfd_vm->process_info;
-	add_kgd_mem_to_kfd_bo_list(*mem, kfd_vm->process_info);
+	(*mem)->process_info = avm->process_info;
+	add_kgd_mem_to_kfd_bo_list(*mem, avm->process_info);
 
 	if (offset)
 		*offset = amdgpu_bo_mmap_offset(bo);
@@ -1092,7 +1164,7 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
 		struct kgd_dev *kgd, struct kgd_mem *mem, void *vm)
 {
 	struct amdgpu_device *adev = get_amdgpu_device(kgd);
-	struct amdkfd_vm *kfd_vm = (struct amdkfd_vm *)vm;
+	struct amdgpu_vm *avm = (struct amdgpu_vm *)vm;
 	int ret;
 	struct amdgpu_bo *bo;
 	uint32_t domain;
@@ -1128,19 +1200,19 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
 	if (unlikely(ret))
 		goto out;
 
-	if (check_if_add_bo_to_vm((struct amdgpu_vm *)vm, mem)) {
-		ret = add_bo_to_vm(adev, mem, (struct amdgpu_vm *)vm, false,
+	if (check_if_add_bo_to_vm(avm, mem)) {
+		ret = add_bo_to_vm(adev, mem, avm, false,
 				&bo_va_entry);
 		if (ret)
 			goto add_bo_to_vm_failed;
 		if (mem->aql_queue) {
-			ret = add_bo_to_vm(adev, mem, (struct amdgpu_vm *)vm,
+			ret = add_bo_to_vm(adev, mem, avm,
 					true, &bo_va_entry_aql);
 			if (ret)
 				goto add_bo_to_vm_failed_aql;
 		}
 	} else {
-		ret = vm_validate_pt_pd_bos((struct amdkfd_vm *)vm);
+		ret = vm_validate_pt_pd_bos(avm);
 		if (unlikely(ret))
 			goto add_bo_to_vm_failed;
 	}
@@ -1184,7 +1256,7 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
 
 	if (!amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) && !bo->pin_count)
 		amdgpu_bo_fence(bo,
-				&kfd_vm->process_info->eviction_fence->base,
+				&avm->process_info->eviction_fence->base,
 				true);
 	ret = unreserve_bo_and_vms(&ctx, false, false);
 
@@ -1209,7 +1281,7 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
 {
 	struct amdgpu_device *adev = get_amdgpu_device(kgd);
 	struct amdkfd_process_info *process_info =
-		((struct amdkfd_vm *)vm)->process_info;
+		((struct amdgpu_vm *)vm)->process_info;
 	unsigned long bo_size = mem->bo->tbo.mem.size;
 	struct kfd_bo_va_list *entry;
 	struct bo_vm_reservation_context ctx;
@@ -1226,7 +1298,7 @@ int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
 		goto unreserve_out;
 	}
 
-	ret = vm_validate_pt_pd_bos((struct amdkfd_vm *)vm);
+	ret = vm_validate_pt_pd_bos((struct amdgpu_vm *)vm);
 	if (unlikely(ret))
 		goto unreserve_out;
 
@@ -1368,7 +1440,7 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef)
 {
 	struct amdgpu_bo_list_entry *pd_bo_list;
 	struct amdkfd_process_info *process_info = info;
-	struct amdkfd_vm *peer_vm;
+	struct amdgpu_vm *peer_vm;
 	struct kgd_mem *mem;
 	struct bo_vm_reservation_context ctx;
 	struct amdgpu_amdkfd_fence *new_fence;
@@ -1390,8 +1462,7 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef)
 	mutex_lock(&process_info->lock);
 	list_for_each_entry(peer_vm, &process_info->vm_list_head,
 			vm_list_node)
-		amdgpu_vm_get_pd_bo(&peer_vm->base, &ctx.list,
-				    &pd_bo_list[i++]);
+		amdgpu_vm_get_pd_bo(peer_vm, &ctx.list, &pd_bo_list[i++]);
 
 	/* Reserve all BOs and page tables/directory. Add all BOs from
 	 * kfd_bo_list to ctx.list
@@ -1422,7 +1493,7 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef)
 	/* FIXME: I think this isn't needed */
 	list_for_each_entry(peer_vm, &process_info->vm_list_head,
 			    vm_list_node) {
-		struct amdgpu_bo *bo = peer_vm->base.root.base.bo;
+		struct amdgpu_bo *bo = peer_vm->root.base.bo;
 
 		ttm_bo_wait(&bo->tbo, false, false);
 	}
@@ -1491,7 +1562,7 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef)
 	/* Attach eviction fence to PD / PT BOs */
 	list_for_each_entry(peer_vm, &process_info->vm_list_head,
 			    vm_list_node) {
-		struct amdgpu_bo *bo = peer_vm->base.root.base.bo;
+		struct amdgpu_bo *bo = peer_vm->root.base.bo;
 
 		amdgpu_bo_fence(bo, &process_info->eviction_fence->base, true);
 	}

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

@@ -32,6 +32,7 @@
 #include <drm/amdgpu_drm.h>
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
+#include "amdgpu_amdkfd.h"
 
 /*
  * GPUVM
@@ -2405,8 +2406,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	if (vm->use_cpu_for_update)
 		flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
 	else
-		flags |= (AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
-				AMDGPU_GEM_CREATE_SHADOW);
+		flags |= AMDGPU_GEM_CREATE_SHADOW;
 
 	size = amdgpu_vm_bo_size(adev, adev->vm_manager.root_level);
 	r = amdgpu_bo_create(adev, size, align, AMDGPU_GEM_DOMAIN_VRAM, flags,
@@ -2461,6 +2461,73 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	return r;
 }
 
+/**
+ * amdgpu_vm_make_compute - Turn a GFX VM into a compute VM
+ *
+ * This only works on GFX VMs that don't have any BOs added and no
+ * page tables allocated yet.
+ *
+ * Changes the following VM parameters:
+ * - use_cpu_for_update
+ * - pte_supports_ats
+ * - pasid (old PASID is released, because compute manages its own PASIDs)
+ *
+ * Reinitializes the page directory to reflect the changed ATS
+ * setting. May leave behind an unused shadow BO for the page
+ * directory when switching from SDMA updates to CPU updates.
+ *
+ * Returns 0 for success, -errno for errors.
+ */
+int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm)
+{
+	bool pte_support_ats = (adev->asic_type == CHIP_RAVEN);
+	int r;
+
+	r = amdgpu_bo_reserve(vm->root.base.bo, true);
+	if (r)
+		return r;
+
+	/* Sanity checks */
+	if (!RB_EMPTY_ROOT(&vm->va.rb_root) || vm->root.entries) {
+		r = -EINVAL;
+		goto error;
+	}
+
+	/* Check if PD needs to be reinitialized and do it before
+	 * changing any other state, in case it fails.
+	 */
+	if (pte_support_ats != vm->pte_support_ats) {
+		r = amdgpu_vm_clear_bo(adev, vm, vm->root.base.bo,
+			       adev->vm_manager.root_level,
+			       pte_support_ats);
+		if (r)
+			goto error;
+	}
+
+	/* Update VM state */
+	vm->use_cpu_for_update = !!(adev->vm_manager.vm_update_mode &
+				    AMDGPU_VM_USE_CPU_FOR_COMPUTE);
+	vm->pte_support_ats = pte_support_ats;
+	DRM_DEBUG_DRIVER("VM update mode is %s\n",
+			 vm->use_cpu_for_update ? "CPU" : "SDMA");
+	WARN_ONCE((vm->use_cpu_for_update & !amdgpu_vm_is_large_bar(adev)),
+		  "CPU update of VM recommended only for large BAR system\n");
+
+	if (vm->pasid) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&adev->vm_manager.pasid_lock, flags);
+		idr_remove(&adev->vm_manager.pasid_idr, vm->pasid);
+		spin_unlock_irqrestore(&adev->vm_manager.pasid_lock, flags);
+
+		vm->pasid = 0;
+	}
+
+error:
+	amdgpu_bo_unreserve(vm->root.base.bo);
+	return r;
+}
+
 /**
  * amdgpu_vm_free_levels - free PD/PT levels
  *
@@ -2508,6 +2575,8 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 	u64 fault;
 	int i, r;
 
+	amdgpu_amdkfd_gpuvm_destroy_cb(adev, vm);
+
 	/* Clear pending page faults from IH when the VM is destroyed */
 	while (kfifo_get(&vm->faults, &fault))
 		amdgpu_ih_clear_fault(adev, fault);

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h

@@ -207,6 +207,15 @@ struct amdgpu_vm {
 
 	/* Limit non-retry fault storms */
 	unsigned int		fault_credit;
+
+	/* Points to the KFD process VM info */
+	struct amdkfd_process_info *process_info;
+
+	/* List node in amdkfd_process_info.vm_list_head */
+	struct list_head	vm_list_node;
+
+	/* Valid while the PD is reserved or fenced */
+	uint64_t		pd_phys_addr;
 };
 
 struct amdgpu_vm_manager {
@@ -251,6 +260,7 @@ void amdgpu_vm_manager_init(struct amdgpu_device *adev);
 void amdgpu_vm_manager_fini(struct amdgpu_device *adev);
 int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 		   int vm_context, unsigned int pasid);
+int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm);
 void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
 bool amdgpu_vm_pasid_fault_credit(struct amdgpu_device *adev,
 				  unsigned int pasid);

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

@@ -24,6 +24,7 @@
 #include <linux/export.h>
 #include <linux/err.h>
 #include <linux/fs.h>
+#include <linux/file.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
@@ -825,12 +826,155 @@ static int kfd_ioctl_get_process_apertures(struct file *filp,
 	return 0;
 }
 
+static int kfd_ioctl_get_process_apertures_new(struct file *filp,
+				struct kfd_process *p, void *data)
+{
+	struct kfd_ioctl_get_process_apertures_new_args *args = data;
+	struct kfd_process_device_apertures *pa;
+	struct kfd_process_device *pdd;
+	uint32_t nodes = 0;
+	int ret;
+
+	dev_dbg(kfd_device, "get apertures for PASID %d", p->pasid);
+
+	if (args->num_of_nodes == 0) {
+		/* Return number of nodes, so that user space can alloacate
+		 * sufficient memory
+		 */
+		mutex_lock(&p->mutex);
+
+		if (!kfd_has_process_device_data(p))
+			goto out_unlock;
+
+		/* Run over all pdd of the process */
+		pdd = kfd_get_first_process_device_data(p);
+		do {
+			args->num_of_nodes++;
+			pdd = kfd_get_next_process_device_data(p, pdd);
+		} while (pdd);
+
+		goto out_unlock;
+	}
+
+	/* Fill in process-aperture information for all available
+	 * nodes, but not more than args->num_of_nodes as that is
+	 * the amount of memory allocated by user
+	 */
+	pa = kzalloc((sizeof(struct kfd_process_device_apertures) *
+				args->num_of_nodes), GFP_KERNEL);
+	if (!pa)
+		return -ENOMEM;
+
+	mutex_lock(&p->mutex);
+
+	if (!kfd_has_process_device_data(p)) {
+		args->num_of_nodes = 0;
+		kfree(pa);
+		goto out_unlock;
+	}
+
+	/* Run over all pdd of the process */
+	pdd = kfd_get_first_process_device_data(p);
+	do {
+		pa[nodes].gpu_id = pdd->dev->id;
+		pa[nodes].lds_base = pdd->lds_base;
+		pa[nodes].lds_limit = pdd->lds_limit;
+		pa[nodes].gpuvm_base = pdd->gpuvm_base;
+		pa[nodes].gpuvm_limit = pdd->gpuvm_limit;
+		pa[nodes].scratch_base = pdd->scratch_base;
+		pa[nodes].scratch_limit = pdd->scratch_limit;
+
+		dev_dbg(kfd_device,
+			"gpu id %u\n", pdd->dev->id);
+		dev_dbg(kfd_device,
+			"lds_base %llX\n", pdd->lds_base);
+		dev_dbg(kfd_device,
+			"lds_limit %llX\n", pdd->lds_limit);
+		dev_dbg(kfd_device,
+			"gpuvm_base %llX\n", pdd->gpuvm_base);
+		dev_dbg(kfd_device,
+			"gpuvm_limit %llX\n", pdd->gpuvm_limit);
+		dev_dbg(kfd_device,
+			"scratch_base %llX\n", pdd->scratch_base);
+		dev_dbg(kfd_device,
+			"scratch_limit %llX\n", pdd->scratch_limit);
+		nodes++;
+
+		pdd = kfd_get_next_process_device_data(p, pdd);
+	} while (pdd && (nodes < args->num_of_nodes));
+	mutex_unlock(&p->mutex);
+
+	args->num_of_nodes = nodes;
+	ret = copy_to_user(
+			(void __user *)args->kfd_process_device_apertures_ptr,
+			pa,
+			(nodes * sizeof(struct kfd_process_device_apertures)));
+	kfree(pa);
+	return ret ? -EFAULT : 0;
+
+out_unlock:
+	mutex_unlock(&p->mutex);
+	return 0;
+}
+
 static int kfd_ioctl_create_event(struct file *filp, struct kfd_process *p,
 					void *data)
 {
 	struct kfd_ioctl_create_event_args *args = data;
 	int err;
 
+	/* For dGPUs the event page is allocated in user mode. The
+	 * handle is passed to KFD with the first call to this IOCTL
+	 * through the event_page_offset field.
+	 */
+	if (args->event_page_offset) {
+		struct kfd_dev *kfd;
+		struct kfd_process_device *pdd;
+		void *mem, *kern_addr;
+		uint64_t size;
+
+		if (p->signal_page) {
+			pr_err("Event page is already set\n");
+			return -EINVAL;
+		}
+
+		kfd = kfd_device_by_id(GET_GPU_ID(args->event_page_offset));
+		if (!kfd) {
+			pr_err("Getting device by id failed in %s\n", __func__);
+			return -EINVAL;
+		}
+
+		mutex_lock(&p->mutex);
+		pdd = kfd_bind_process_to_device(kfd, p);
+		if (IS_ERR(pdd)) {
+			err = PTR_ERR(pdd);
+			goto out_unlock;
+		}
+
+		mem = kfd_process_device_translate_handle(pdd,
+				GET_IDR_HANDLE(args->event_page_offset));
+		if (!mem) {
+			pr_err("Can't find BO, offset is 0x%llx\n",
+			       args->event_page_offset);
+			err = -EINVAL;
+			goto out_unlock;
+		}
+		mutex_unlock(&p->mutex);
+
+		err = kfd->kfd2kgd->map_gtt_bo_to_kernel(kfd->kgd,
+						mem, &kern_addr, &size);
+		if (err) {
+			pr_err("Failed to map event page to kernel\n");
+			return err;
+		}
+
+		err = kfd_event_page_set(p, kern_addr, size);
+		if (err) {
+			pr_err("Failed to set event page\n");
+			return err;
+		}
+	}
+
 	err = kfd_event_create(filp, p, args->event_type,
 				args->auto_reset != 0, args->node_id,
 				&args->event_id, &args->event_trigger_data,
@@ -838,6 +982,10 @@ static int kfd_ioctl_create_event(struct file *filp, struct kfd_process *p,
 				&args->event_slot_index);
 
 	return err;
+
+out_unlock:
+	mutex_unlock(&p->mutex);
+	return err;
 }
 
 static int kfd_ioctl_destroy_event(struct file *filp, struct kfd_process *p,
@@ -955,6 +1103,371 @@ static int kfd_ioctl_get_tile_config(struct file *filep,
 	return 0;
 }
 
+static int kfd_ioctl_acquire_vm(struct file *filep, struct kfd_process *p,
+				void *data)
+{
+	struct kfd_ioctl_acquire_vm_args *args = data;
+	struct kfd_process_device *pdd;
+	struct kfd_dev *dev;
+	struct file *drm_file;
+	int ret;
+
+	dev = kfd_device_by_id(args->gpu_id);
+	if (!dev)
+		return -EINVAL;
+
+	drm_file = fget(args->drm_fd);
+	if (!drm_file)
+		return -EINVAL;
+
+	mutex_lock(&p->mutex);
+
+	pdd = kfd_get_process_device_data(dev, p);
+	if (!pdd) {
+		ret = -EINVAL;
+		goto err_unlock;
+	}
+
+	if (pdd->drm_file) {
+		ret = pdd->drm_file == drm_file ? 0 : -EBUSY;
+		goto err_unlock;
+	}
+
+	ret = kfd_process_device_init_vm(pdd, drm_file);
+	if (ret)
+		goto err_unlock;
+	/* On success, the PDD keeps the drm_file reference */
+	mutex_unlock(&p->mutex);
+
+	return 0;
+
+err_unlock:
+	mutex_unlock(&p->mutex);
+	fput(drm_file);
+	return ret;
+}
+
+bool kfd_dev_is_large_bar(struct kfd_dev *dev)
+{
+	struct kfd_local_mem_info mem_info;
+
+	if (debug_largebar) {
+		pr_debug("Simulate large-bar allocation on non large-bar machine\n");
+		return true;
+	}
+
+	if (dev->device_info->needs_iommu_device)
+		return false;
+
+	dev->kfd2kgd->get_local_mem_info(dev->kgd, &mem_info);
+	if (mem_info.local_mem_size_private == 0 &&
+			mem_info.local_mem_size_public > 0)
+		return true;
+	return false;
+}
+
+static int kfd_ioctl_alloc_memory_of_gpu(struct file *filep,
+					struct kfd_process *p, void *data)
+{
+	struct kfd_ioctl_alloc_memory_of_gpu_args *args = data;
+	struct kfd_process_device *pdd;
+	void *mem;
+	struct kfd_dev *dev;
+	int idr_handle;
+	long err;
+	uint64_t offset = args->mmap_offset;
+	uint32_t flags = args->flags;
+
+	if (args->size == 0)
+		return -EINVAL;
+
+	dev = kfd_device_by_id(args->gpu_id);
+	if (!dev)
+		return -EINVAL;
+
+	if ((flags & KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC) &&
+		(flags & KFD_IOC_ALLOC_MEM_FLAGS_VRAM) &&
+		!kfd_dev_is_large_bar(dev)) {
+		pr_err("Alloc host visible vram on small bar is not allowed\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&p->mutex);
+
+	pdd = kfd_bind_process_to_device(dev, p);
+	if (IS_ERR(pdd)) {
+		err = PTR_ERR(pdd);
+		goto err_unlock;
+	}
+
+	err = dev->kfd2kgd->alloc_memory_of_gpu(
+		dev->kgd, args->va_addr, args->size,
+		pdd->vm, (struct kgd_mem **) &mem, &offset,
+		flags);
+
+	if (err)
+		goto err_unlock;
+
+	idr_handle = kfd_process_device_create_obj_handle(pdd, mem);
+	if (idr_handle < 0) {
+		err = -EFAULT;
+		goto err_free;
+	}
+
+	mutex_unlock(&p->mutex);
+
+	args->handle = MAKE_HANDLE(args->gpu_id, idr_handle);
+	args->mmap_offset = offset;
+
+	return 0;
+
+err_free:
+	dev->kfd2kgd->free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem);
+err_unlock:
+	mutex_unlock(&p->mutex);
+	return err;
+}
+
+static int kfd_ioctl_free_memory_of_gpu(struct file *filep,
+					struct kfd_process *p, void *data)
+{
+	struct kfd_ioctl_free_memory_of_gpu_args *args = data;
+	struct kfd_process_device *pdd;
+	void *mem;
+	struct kfd_dev *dev;
+	int ret;
+
+	dev = kfd_device_by_id(GET_GPU_ID(args->handle));
+	if (!dev)
+		return -EINVAL;
+
+	mutex_lock(&p->mutex);
+
+	pdd = kfd_get_process_device_data(dev, p);
+	if (!pdd) {
+		pr_err("Process device data doesn't exist\n");
+		ret = -EINVAL;
+		goto err_unlock;
+	}
+
+	mem = kfd_process_device_translate_handle(
+		pdd, GET_IDR_HANDLE(args->handle));
+	if (!mem) {
+		ret = -EINVAL;
+		goto err_unlock;
+	}
+
+	ret = dev->kfd2kgd->free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem);
+
+	/* If freeing the buffer failed, leave the handle in place for
+	 * clean-up during process tear-down.
+	 */
+	if (!ret)
+		kfd_process_device_remove_obj_handle(
+			pdd, GET_IDR_HANDLE(args->handle));
+
+err_unlock:
+	mutex_unlock(&p->mutex);
+	return ret;
+}
+
+static int kfd_ioctl_map_memory_to_gpu(struct file *filep,
+					struct kfd_process *p, void *data)
+{
+	struct kfd_ioctl_map_memory_to_gpu_args *args = data;
+	struct kfd_process_device *pdd, *peer_pdd;
+	void *mem;
+	struct kfd_dev *dev, *peer;
+	long err = 0;
+	int i;
+	uint32_t *devices_arr = NULL;
+
+	dev = kfd_device_by_id(GET_GPU_ID(args->handle));
+	if (!dev)
+		return -EINVAL;
+
+	if (!args->n_devices) {
+		pr_debug("Device IDs array empty\n");
+		return -EINVAL;
+	}
+	if (args->n_success > args->n_devices) {
+		pr_debug("n_success exceeds n_devices\n");
+		return -EINVAL;
+	}
+
+	devices_arr = kmalloc(args->n_devices * sizeof(*devices_arr),
+			      GFP_KERNEL);
+	if (!devices_arr)
+		return -ENOMEM;
+
+	err = copy_from_user(devices_arr,
+			     (void __user *)args->device_ids_array_ptr,
+			     args->n_devices * sizeof(*devices_arr));
+	if (err != 0) {
+		err = -EFAULT;
+		goto copy_from_user_failed;
+	}
+
+	mutex_lock(&p->mutex);
+
+	pdd = kfd_bind_process_to_device(dev, p);
+	if (IS_ERR(pdd)) {
+		err = PTR_ERR(pdd);
+		goto bind_process_to_device_failed;
+	}
+
+	mem = kfd_process_device_translate_handle(pdd,
+						GET_IDR_HANDLE(args->handle));
+	if (!mem) {
+		err = -ENOMEM;
+		goto get_mem_obj_from_handle_failed;
+	}
+
+	for (i = args->n_success; i < args->n_devices; i++) {
+		peer = kfd_device_by_id(devices_arr[i]);
+		if (!peer) {
+			pr_debug("Getting device by id failed for 0x%x\n",
+				 devices_arr[i]);
+			err = -EINVAL;
+			goto get_mem_obj_from_handle_failed;
+		}
+
+		peer_pdd = kfd_bind_process_to_device(peer, p);
+		if (IS_ERR(peer_pdd)) {
+			err = PTR_ERR(peer_pdd);
+			goto get_mem_obj_from_handle_failed;
+		}
+		err = peer->kfd2kgd->map_memory_to_gpu(
+			peer->kgd, (struct kgd_mem *)mem, peer_pdd->vm);
+		if (err) {
+			pr_err("Failed to map to gpu %d/%d\n",
+			       i, args->n_devices);
+			goto map_memory_to_gpu_failed;
+		}
+		args->n_success = i+1;
+	}
+
+	mutex_unlock(&p->mutex);
+
+	err = dev->kfd2kgd->sync_memory(dev->kgd, (struct kgd_mem *) mem, true);
+	if (err) {
+		pr_debug("Sync memory failed, wait interrupted by user signal\n");
+		goto sync_memory_failed;
+	}
+
+	/* Flush TLBs after waiting for the page table updates to complete */
+	for (i = 0; i < args->n_devices; i++) {
+		peer = kfd_device_by_id(devices_arr[i]);
+		if (WARN_ON_ONCE(!peer))
+			continue;
+		peer_pdd = kfd_get_process_device_data(peer, p);
+		if (WARN_ON_ONCE(!peer_pdd))
+			continue;
+		kfd_flush_tlb(peer_pdd);
+	}
+
+	kfree(devices_arr);
+
+	return err;
+
+bind_process_to_device_failed:
+get_mem_obj_from_handle_failed:
+map_memory_to_gpu_failed:
+	mutex_unlock(&p->mutex);
+copy_from_user_failed:
+sync_memory_failed:
+	kfree(devices_arr);
+
+	return err;
+}
+
+static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep,
+					struct kfd_process *p, void *data)
+{
+	struct kfd_ioctl_unmap_memory_from_gpu_args *args = data;
+	struct kfd_process_device *pdd, *peer_pdd;
+	void *mem;
+	struct kfd_dev *dev, *peer;
+	long err = 0;
+	uint32_t *devices_arr = NULL, i;
+
+	dev = kfd_device_by_id(GET_GPU_ID(args->handle));
+	if (!dev)
+		return -EINVAL;
+
+	if (!args->n_devices) {
+		pr_debug("Device IDs array empty\n");
+		return -EINVAL;
+	}
+	if (args->n_success > args->n_devices) {
+		pr_debug("n_success exceeds n_devices\n");
+		return -EINVAL;
+	}
+
+	devices_arr = kmalloc(args->n_devices * sizeof(*devices_arr),
+			      GFP_KERNEL);
+	if (!devices_arr)
+		return -ENOMEM;
+
+	err = copy_from_user(devices_arr,
+			     (void __user *)args->device_ids_array_ptr,
+			     args->n_devices * sizeof(*devices_arr));
+	if (err != 0) {
+		err = -EFAULT;
+		goto copy_from_user_failed;
+	}
+
+	mutex_lock(&p->mutex);
+
+	pdd = kfd_get_process_device_data(dev, p);
+	if (!pdd) {
+		err = PTR_ERR(pdd);
+		goto bind_process_to_device_failed;
+	}
+
+	mem = kfd_process_device_translate_handle(pdd,
+						GET_IDR_HANDLE(args->handle));
+	if (!mem) {
+		err = -ENOMEM;
+		goto get_mem_obj_from_handle_failed;
+	}
+
+	for (i = args->n_success; i < args->n_devices; i++) {
+		peer = kfd_device_by_id(devices_arr[i]);
+		if (!peer) {
+			err = -EINVAL;
+			goto get_mem_obj_from_handle_failed;
+		}
+
+		peer_pdd = kfd_get_process_device_data(peer, p);
+		if (!peer_pdd) {
+			err = -ENODEV;
+			goto get_mem_obj_from_handle_failed;
+		}
+		err = dev->kfd2kgd->unmap_memory_to_gpu(
+			peer->kgd, (struct kgd_mem *)mem, peer_pdd->vm);
+		if (err) {
+			pr_err("Failed to unmap from gpu %d/%d\n",
+			       i, args->n_devices);
+			goto unmap_memory_from_gpu_failed;
+		}
+		args->n_success = i+1;
+	}
+	kfree(devices_arr);
+
+	mutex_unlock(&p->mutex);
+
+	return 0;
+
+bind_process_to_device_failed:
+get_mem_obj_from_handle_failed:
+unmap_memory_from_gpu_failed:
+	mutex_unlock(&p->mutex);
+copy_from_user_failed:
+	kfree(devices_arr);
+	return err;
+}
+
 #define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \
 	[_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, \
 			    .cmd_drv = 0, .name = #ioctl}
@@ -1017,6 +1530,25 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = {
 
 	AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_TRAP_HANDLER,
 			kfd_ioctl_set_trap_handler, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_PROCESS_APERTURES_NEW,
+			kfd_ioctl_get_process_apertures_new, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_ACQUIRE_VM,
+			kfd_ioctl_acquire_vm, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_ALLOC_MEMORY_OF_GPU,
+			kfd_ioctl_alloc_memory_of_gpu, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_FREE_MEMORY_OF_GPU,
+			kfd_ioctl_free_memory_of_gpu, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_MAP_MEMORY_TO_GPU,
+			kfd_ioctl_map_memory_to_gpu, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_UNMAP_MEMORY_FROM_GPU,
+			kfd_ioctl_unmap_memory_from_gpu, 0),
+
 };
 
 #define AMDKFD_CORE_IOCTL_COUNT	ARRAY_SIZE(amdkfd_ioctls)

drivers/gpu/drm/amd/amdkfd/kfd_crat.c

@@ -882,7 +882,7 @@ static int kfd_create_vcrat_image_cpu(void *pcrat_image, size_t *size)
 	crat_table->length = sizeof(struct crat_header);
 
 	status = acpi_get_table("DSDT", 0, &acpi_table);
-	if (status == AE_NOT_FOUND)
+	if (status != AE_OK)
 		pr_warn("DSDT table not found for OEM information\n");
 	else {
 		crat_table->oem_revision = acpi_table->revision;
@@ -1117,6 +1117,9 @@ static int kfd_create_vcrat_image_gpu(void *pcrat_image,
 	sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
 			sub_type_hdr->length);
 
+	if (debug_largebar)
+		local_mem_info.local_mem_size_private = 0;
+
 	if (local_mem_info.local_mem_size_private == 0)
 		ret = kfd_fill_gpu_memory_affinity(&avail_size,
 				kdev, HSA_MEM_HEAP_TYPE_FB_PUBLIC,

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c

@@ -142,12 +142,31 @@ static int allocate_vmid(struct device_queue_manager *dqm,
 	return 0;
 }
 
+static int flush_texture_cache_nocpsch(struct kfd_dev *kdev,
+				struct qcm_process_device *qpd)
+{
+	uint32_t len;
+
+	if (!qpd->ib_kaddr)
+		return -ENOMEM;
+
+	len = pm_create_release_mem(qpd->ib_base, (uint32_t *)qpd->ib_kaddr);
+
+	return kdev->kfd2kgd->submit_ib(kdev->kgd, KGD_ENGINE_MEC1, qpd->vmid,
+				qpd->ib_base, (uint32_t *)qpd->ib_kaddr, len);
+}
+
 static void deallocate_vmid(struct device_queue_manager *dqm,
 				struct qcm_process_device *qpd,
 				struct queue *q)
 {
 	int bit = qpd->vmid - dqm->dev->vm_info.first_vmid_kfd;
 
+	/* On GFX v7, CP doesn't flush TC at dequeue */
+	if (q->device->device_info->asic_family == CHIP_HAWAII)
+		if (flush_texture_cache_nocpsch(q->device, qpd))
+			pr_err("Failed to flush TC\n");
+
 	kfd_flush_tlb(qpd_to_pdd(qpd));
 
 	/* Release the vmid mapping */
@@ -792,11 +811,12 @@ static void uninitialize(struct device_queue_manager *dqm)
 static int start_nocpsch(struct device_queue_manager *dqm)
 {
 	init_interrupts(dqm);
-	return 0;
+	return pm_init(&dqm->packets, dqm);
 }
 
 static int stop_nocpsch(struct device_queue_manager *dqm)
 {
+	pm_uninit(&dqm->packets);
 	return 0;
 }
 

drivers/gpu/drm/amd/amdkfd/kfd_events.c

@@ -52,6 +52,7 @@ struct kfd_event_waiter {
 struct kfd_signal_page {
 	uint64_t *kernel_address;
 	uint64_t __user *user_address;
+	bool need_to_free_pages;
 };
 
 
@@ -79,6 +80,7 @@ static struct kfd_signal_page *allocate_signal_page(struct kfd_process *p)
 	       KFD_SIGNAL_EVENT_LIMIT * 8);
 
 	page->kernel_address = backing_store;
+	page->need_to_free_pages = true;
 	pr_debug("Allocated new event signal page at %p, for process %p\n",
 			page, p);
 
@@ -269,6 +271,7 @@ static void shutdown_signal_page(struct kfd_process *p)
 	struct kfd_signal_page *page = p->signal_page;
 
 	if (page) {
+		if (page->need_to_free_pages)
 			free_pages((unsigned long)page->kernel_address,
 				   get_order(KFD_SIGNAL_EVENT_LIMIT * 8));
 		kfree(page);
@@ -292,6 +295,30 @@ static bool event_can_be_cpu_signaled(const struct kfd_event *ev)
 	return ev->type == KFD_EVENT_TYPE_SIGNAL;
 }
 
+int kfd_event_page_set(struct kfd_process *p, void *kernel_address,
+		       uint64_t size)
+{
+	struct kfd_signal_page *page;
+
+	if (p->signal_page)
+		return -EBUSY;
+
+	page = kzalloc(sizeof(*page), GFP_KERNEL);
+	if (!page)
+		return -ENOMEM;
+
+	/* Initialize all events to unsignaled */
+	memset(kernel_address, (uint8_t) UNSIGNALED_EVENT_SLOT,
+	       KFD_SIGNAL_EVENT_LIMIT * 8);
+
+	page->kernel_address = kernel_address;
+
+	p->signal_page = page;
+	p->signal_mapped_size = size;
+
+	return 0;
+}
+
 int kfd_event_create(struct file *devkfd, struct kfd_process *p,
 		     uint32_t event_type, bool auto_reset, uint32_t node_id,
 		     uint32_t *event_id, uint32_t *event_trigger_data,

drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c

@@ -278,21 +278,28 @@
 #define MAKE_GPUVM_APP_BASE(gpu_num) \
 	(((uint64_t)(gpu_num) << 61) + 0x1000000000000L)
 
-#define MAKE_GPUVM_APP_LIMIT(base) \
-	(((uint64_t)(base) & \
-		0xFFFFFF0000000000UL) | 0xFFFFFFFFFFL)
+#define MAKE_GPUVM_APP_LIMIT(base, size) \
+	(((uint64_t)(base) & 0xFFFFFF0000000000UL) + (size) - 1)
 
-#define MAKE_SCRATCH_APP_BASE(gpu_num) \
-	(((uint64_t)(gpu_num) << 61) + 0x100000000L)
+#define MAKE_SCRATCH_APP_BASE() \
+	(((uint64_t)(0x1UL) << 61) + 0x100000000L)
 
 #define MAKE_SCRATCH_APP_LIMIT(base) \
 	(((uint64_t)base & 0xFFFFFFFF00000000UL) | 0xFFFFFFFF)
 
-#define MAKE_LDS_APP_BASE(gpu_num) \
-	(((uint64_t)(gpu_num) << 61) + 0x0)
+#define MAKE_LDS_APP_BASE() \
+	(((uint64_t)(0x1UL) << 61) + 0x0)
 #define MAKE_LDS_APP_LIMIT(base) \
 	(((uint64_t)(base) & 0xFFFFFFFF00000000UL) | 0xFFFFFFFF)
 
+/* User mode manages most of the SVM aperture address space. The low
+ * 16MB are reserved for kernel use (CWSR trap handler and kernel IB
+ * for now).
+ */
+#define SVM_USER_BASE 0x1000000ull
+#define SVM_CWSR_BASE (SVM_USER_BASE - KFD_CWSR_TBA_TMA_SIZE)
+#define SVM_IB_BASE   (SVM_CWSR_BASE - PAGE_SIZE)
+
 int kfd_init_apertures(struct kfd_process *process)
 {
 	uint8_t id  = 0;
@@ -314,7 +321,7 @@ int kfd_init_apertures(struct kfd_process *process)
 			return -1;
 		}
 		/*
-		 * For 64 bit process aperture will be statically reserved in
+		 * For 64 bit process apertures will be statically reserved in
 		 * the x86_64 non canonical process address space
 		 * amdkfd doesn't currently support apertures for 32 bit process
 		 */
@@ -323,23 +330,35 @@ int kfd_init_apertures(struct kfd_process *process)
 			pdd->gpuvm_base = pdd->gpuvm_limit = 0;
 			pdd->scratch_base = pdd->scratch_limit = 0;
 		} else {
-			/*
-			 * node id couldn't be 0 - the three MSB bits of
-			 * aperture shoudn't be 0
+			/* Same LDS and scratch apertures can be used
+			 * on all GPUs. This allows using more dGPUs
+			 * than placement options for apertures.
 			 */
-			pdd->lds_base = MAKE_LDS_APP_BASE(id + 1);
-
+			pdd->lds_base = MAKE_LDS_APP_BASE();
 			pdd->lds_limit = MAKE_LDS_APP_LIMIT(pdd->lds_base);
 
-			pdd->gpuvm_base = MAKE_GPUVM_APP_BASE(id + 1);
-
-			pdd->gpuvm_limit =
-					MAKE_GPUVM_APP_LIMIT(pdd->gpuvm_base);
-
-			pdd->scratch_base = MAKE_SCRATCH_APP_BASE(id + 1);
-
+			pdd->scratch_base = MAKE_SCRATCH_APP_BASE();
 			pdd->scratch_limit =
 				MAKE_SCRATCH_APP_LIMIT(pdd->scratch_base);
+
+			if (dev->device_info->needs_iommu_device) {
+				/* APUs: GPUVM aperture in
+				 * non-canonical address space
+				 */
+				pdd->gpuvm_base = MAKE_GPUVM_APP_BASE(id + 1);
+				pdd->gpuvm_limit = MAKE_GPUVM_APP_LIMIT(
+					pdd->gpuvm_base,
+					dev->shared_resources.gpuvm_size);
+			} else {
+				/* dGPUs: SVM aperture starting at 0
+				 * with small reserved space for kernel
+				 */
+				pdd->gpuvm_base = SVM_USER_BASE;
+				pdd->gpuvm_limit =
+					dev->shared_resources.gpuvm_size - 1;
+				pdd->qpd.cwsr_base = SVM_CWSR_BASE;
+				pdd->qpd.ib_base = SVM_IB_BASE;
+			}
 		}
 
 		dev_dbg(kfd_device, "node id %u\n", id);

drivers/gpu/drm/amd/amdkfd/kfd_module.c

@@ -71,6 +71,11 @@ module_param(send_sigterm, int, 0444);
 MODULE_PARM_DESC(send_sigterm,
 	"Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");
 
+int debug_largebar;
+module_param(debug_largebar, int, 0444);
+MODULE_PARM_DESC(debug_largebar,
+	"Debug large-bar flag used to simulate large-bar capability on non-large bar machine (0 = disable, 1 = enable)");
+
 int ignore_crat;
 module_param(ignore_crat, int, 0444);
 MODULE_PARM_DESC(ignore_crat,
@@ -128,7 +133,9 @@ static int __init kfd_module_init(void)
 	if (err < 0)
 		goto err_topology;
 
-	kfd_process_create_wq();
+	err = kfd_process_create_wq();
+	if (err < 0)
+		goto err_create_wq;
 
 	kfd_debugfs_init();
 
@@ -138,6 +145,8 @@ static int __init kfd_module_init(void)
 
 	return 0;
 
+err_create_wq:
+	kfd_topology_shutdown();
 err_topology:
 	kfd_chardev_exit();
 err_ioctl:

drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c

@@ -356,6 +356,43 @@ static int pm_create_runlist_ib(struct packet_manager *pm,
 	return retval;
 }
 
+/* pm_create_release_mem - Create a RELEASE_MEM packet and return the size
+ *     of this packet
+ *     @gpu_addr - GPU address of the packet. It's a virtual address.
+ *     @buffer - buffer to fill up with the packet. It's a CPU kernel pointer
+ *     Return - length of the packet
+ */
+uint32_t pm_create_release_mem(uint64_t gpu_addr, uint32_t *buffer)
+{
+	struct pm4_mec_release_mem *packet;
+
+	WARN_ON(!buffer);
+
+	packet = (struct pm4_mec_release_mem *)buffer;
+	memset(buffer, 0, sizeof(*packet));
+
+	packet->header.u32All = build_pm4_header(IT_RELEASE_MEM,
+						 sizeof(*packet));
+
+	packet->bitfields2.event_type = CACHE_FLUSH_AND_INV_TS_EVENT;
+	packet->bitfields2.event_index = event_index___release_mem__end_of_pipe;
+	packet->bitfields2.tcl1_action_ena = 1;
+	packet->bitfields2.tc_action_ena = 1;
+	packet->bitfields2.cache_policy = cache_policy___release_mem__lru;
+	packet->bitfields2.atc = 0;
+
+	packet->bitfields3.data_sel = data_sel___release_mem__send_32_bit_low;
+	packet->bitfields3.int_sel =
+		int_sel___release_mem__send_interrupt_after_write_confirm;
+
+	packet->bitfields4.address_lo_32b = (gpu_addr & 0xffffffff) >> 2;
+	packet->address_hi = upper_32_bits(gpu_addr);
+
+	packet->data_lo = 0;
+
+	return sizeof(*packet) / sizeof(unsigned int);
+}
+
 int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm)
 {
 	pm->dqm = dqm;

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

@@ -104,6 +104,12 @@ extern int cwsr_enable;
  */
 extern int send_sigterm;
 
+/*
+ * This kernel module is used to simulate large bar machine on non-large bar
+ * enabled machines.
+ */
+extern int debug_largebar;
+
 /*
  * Ignore CRAT table during KFD initialization, can be used to work around
  * broken CRAT tables on some AMD systems
@@ -488,8 +494,13 @@ struct qcm_process_device {
 
 	/* CWSR memory */
 	void *cwsr_kaddr;
+	uint64_t cwsr_base;
 	uint64_t tba_addr;
 	uint64_t tma_addr;
+
+	/* IB memory */
+	uint64_t ib_base;
+	void *ib_kaddr;
 };
 
 /* KFD Memory Eviction */
@@ -504,6 +515,14 @@ struct qcm_process_device {
 int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
 					       struct dma_fence *fence);
 
+/* 8 byte handle containing GPU ID in the most significant 4 bytes and
+ * idr_handle in the least significant 4 bytes
+ */
+#define MAKE_HANDLE(gpu_id, idr_handle) \
+	(((uint64_t)(gpu_id) << 32) + idr_handle)
+#define GET_GPU_ID(handle) (handle >> 32)
+#define GET_IDR_HANDLE(handle) (handle & 0xFFFFFFFF)
+
 enum kfd_pdd_bound {
 	PDD_UNBOUND = 0,
 	PDD_BOUND,
@@ -536,8 +555,12 @@ struct kfd_process_device {
 	uint64_t scratch_limit;
 
 	/* VM context for GPUVM allocations */
+	struct file *drm_file;
 	void *vm;
 
+	/* GPUVM allocations storage */
+	struct idr alloc_idr;
+
 	/* Flag used to tell the pdd has dequeued from the dqm.
 	 * This is used to prevent dev->dqm->ops.process_termination() from
 	 * being called twice when it is already called in IOMMU callback
@@ -651,7 +674,7 @@ struct amdkfd_ioctl_desc {
 	const char *name;
 };
 
-void kfd_process_create_wq(void);
+int kfd_process_create_wq(void);
 void kfd_process_destroy_wq(void);
 struct kfd_process *kfd_create_process(struct file *filep);
 struct kfd_process *kfd_get_process(const struct task_struct *);
@@ -661,6 +684,8 @@ void kfd_unref_process(struct kfd_process *p);
 void kfd_suspend_all_processes(void);
 int kfd_resume_all_processes(void);
 
+int kfd_process_device_init_vm(struct kfd_process_device *pdd,
+			       struct file *drm_file);
 struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev,
 						struct kfd_process *p);
 struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev,
@@ -671,6 +696,14 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
 int kfd_reserved_mem_mmap(struct kfd_process *process,
 			  struct vm_area_struct *vma);
 
+/* KFD process API for creating and translating handles */
+int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd,
+					void *mem);
+void *kfd_process_device_translate_handle(struct kfd_process_device *p,
+					int handle);
+void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd,
+					int handle);
+
 /* Process device data iterator */
 struct kfd_process_device *kfd_get_first_process_device_data(
 							struct kfd_process *p);
@@ -816,6 +849,8 @@ int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type,
 
 void pm_release_ib(struct packet_manager *pm);
 
+uint32_t pm_create_release_mem(uint64_t gpu_addr, uint32_t *buffer);
+
 uint64_t kfd_get_number_elems(struct kfd_dev *kfd);
 
 /* Events */
@@ -837,6 +872,8 @@ void kfd_signal_iommu_event(struct kfd_dev *dev,
 void kfd_signal_hw_exception_event(unsigned int pasid);
 int kfd_set_event(struct kfd_process *p, uint32_t event_id);
 int kfd_reset_event(struct kfd_process *p, uint32_t event_id);
+int kfd_event_page_set(struct kfd_process *p, void *kernel_address,
+		       uint64_t size);
 int kfd_event_create(struct file *devkfd, struct kfd_process *p,
 		     uint32_t event_type, bool auto_reset, uint32_t node_id,
 		     uint32_t *event_id, uint32_t *event_trigger_data,

drivers/gpu/drm/amd/amdkfd/kfd_process.c

@@ -30,6 +30,7 @@
 #include <linux/notifier.h>
 #include <linux/compat.h>
 #include <linux/mman.h>
+#include <linux/file.h>
 
 struct mm_struct;
 
@@ -47,22 +48,39 @@ static DEFINE_MUTEX(kfd_processes_mutex);
 
 DEFINE_SRCU(kfd_processes_srcu);
 
+/* For process termination handling */
 static struct workqueue_struct *kfd_process_wq;
 
+/* Ordered, single-threaded workqueue for restoring evicted
+ * processes. Restoring multiple processes concurrently under memory
+ * pressure can lead to processes blocking each other from validating
+ * their BOs and result in a live-lock situation where processes
+ * remain evicted indefinitely.
+ */
+static struct workqueue_struct *kfd_restore_wq;
+
 static struct kfd_process *find_process(const struct task_struct *thread);
 static void kfd_process_ref_release(struct kref *ref);
 static struct kfd_process *create_process(const struct task_struct *thread,
 					struct file *filep);
-static int kfd_process_init_cwsr(struct kfd_process *p, struct file *filep);
 
 static void evict_process_worker(struct work_struct *work);
 static void restore_process_worker(struct work_struct *work);
 
 
-void kfd_process_create_wq(void)
+int kfd_process_create_wq(void)
 {
 	if (!kfd_process_wq)
 		kfd_process_wq = alloc_workqueue("kfd_process_wq", 0, 0);
+	if (!kfd_restore_wq)
+		kfd_restore_wq = alloc_ordered_workqueue("kfd_restore_wq", 0);
+
+	if (!kfd_process_wq || !kfd_restore_wq) {
+		kfd_process_destroy_wq();
+		return -ENOMEM;
+	}
+
+	return 0;
 }
 
 void kfd_process_destroy_wq(void)
@@ -71,6 +89,116 @@ void kfd_process_destroy_wq(void)
 		destroy_workqueue(kfd_process_wq);
 		kfd_process_wq = NULL;
 	}
+	if (kfd_restore_wq) {
+		destroy_workqueue(kfd_restore_wq);
+		kfd_restore_wq = NULL;
+	}
+}
+
+static void kfd_process_free_gpuvm(struct kgd_mem *mem,
+			struct kfd_process_device *pdd)
+{
+	struct kfd_dev *dev = pdd->dev;
+
+	dev->kfd2kgd->unmap_memory_to_gpu(dev->kgd, mem, pdd->vm);
+	dev->kfd2kgd->free_memory_of_gpu(dev->kgd, mem);
+}
+
+/* kfd_process_alloc_gpuvm - Allocate GPU VM for the KFD process
+ *	This function should be only called right after the process
+ *	is created and when kfd_processes_mutex is still being held
+ *	to avoid concurrency. Because of that exclusiveness, we do
+ *	not need to take p->mutex.
+ */
+static int kfd_process_alloc_gpuvm(struct kfd_process_device *pdd,
+				   uint64_t gpu_va, uint32_t size,
+				   uint32_t flags, void **kptr)
+{
+	struct kfd_dev *kdev = pdd->dev;
+	struct kgd_mem *mem = NULL;
+	int handle;
+	int err;
+
+	err = kdev->kfd2kgd->alloc_memory_of_gpu(kdev->kgd, gpu_va, size,
+						 pdd->vm, &mem, NULL, flags);
+	if (err)
+		goto err_alloc_mem;
+
+	err = kdev->kfd2kgd->map_memory_to_gpu(kdev->kgd, mem, pdd->vm);
+	if (err)
+		goto err_map_mem;
+
+	err = kdev->kfd2kgd->sync_memory(kdev->kgd, mem, true);
+	if (err) {
+		pr_debug("Sync memory failed, wait interrupted by user signal\n");
+		goto sync_memory_failed;
+	}
+
+	/* Create an obj handle so kfd_process_device_remove_obj_handle
+	 * will take care of the bo removal when the process finishes.
+	 * We do not need to take p->mutex, because the process is just
+	 * created and the ioctls have not had the chance to run.
+	 */
+	handle = kfd_process_device_create_obj_handle(pdd, mem);
+
+	if (handle < 0) {
+		err = handle;
+		goto free_gpuvm;
+	}
+
+	if (kptr) {
+		err = kdev->kfd2kgd->map_gtt_bo_to_kernel(kdev->kgd,
+				(struct kgd_mem *)mem, kptr, NULL);
+		if (err) {
+			pr_debug("Map GTT BO to kernel failed\n");
+			goto free_obj_handle;
+		}
+	}
+
+	return err;
+
+free_obj_handle:
+	kfd_process_device_remove_obj_handle(pdd, handle);
+free_gpuvm:
+sync_memory_failed:
+	kfd_process_free_gpuvm(mem, pdd);
+	return err;
+
+err_map_mem:
+	kdev->kfd2kgd->free_memory_of_gpu(kdev->kgd, mem);
+err_alloc_mem:
+	*kptr = NULL;
+	return err;
+}
+
+/* kfd_process_device_reserve_ib_mem - Reserve memory inside the
+ *	process for IB usage The memory reserved is for KFD to submit
+ *	IB to AMDGPU from kernel.  If the memory is reserved
+ *	successfully, ib_kaddr will have the CPU/kernel
+ *	address. Check ib_kaddr before accessing the memory.
+ */
+static int kfd_process_device_reserve_ib_mem(struct kfd_process_device *pdd)
+{
+	struct qcm_process_device *qpd = &pdd->qpd;
+	uint32_t flags = ALLOC_MEM_FLAGS_GTT |
+			 ALLOC_MEM_FLAGS_NO_SUBSTITUTE |
+			 ALLOC_MEM_FLAGS_WRITABLE |
+			 ALLOC_MEM_FLAGS_EXECUTABLE;
+	void *kaddr;
+	int ret;
+
+	if (qpd->ib_kaddr || !qpd->ib_base)
+		return 0;
+
+	/* ib_base is only set for dGPU */
+	ret = kfd_process_alloc_gpuvm(pdd, qpd->ib_base, PAGE_SIZE, flags,
+				      &kaddr);
+	if (ret)
+		return ret;
+
+	qpd->ib_kaddr = kaddr;
+
+	return 0;
 }
 
 struct kfd_process *kfd_create_process(struct file *filep)
@@ -149,6 +277,40 @@ void kfd_unref_process(struct kfd_process *p)
 	kref_put(&p->ref, kfd_process_ref_release);
 }
 
+static void kfd_process_device_free_bos(struct kfd_process_device *pdd)
+{
+	struct kfd_process *p = pdd->process;
+	void *mem;
+	int id;
+
+	/*
+	 * Remove all handles from idr and release appropriate
+	 * local memory object
+	 */
+	idr_for_each_entry(&pdd->alloc_idr, mem, id) {
+		struct kfd_process_device *peer_pdd;
+
+		list_for_each_entry(peer_pdd, &p->per_device_data,
+				    per_device_list) {
+			if (!peer_pdd->vm)
+				continue;
+			peer_pdd->dev->kfd2kgd->unmap_memory_to_gpu(
+				peer_pdd->dev->kgd, mem, peer_pdd->vm);
+		}
+
+		pdd->dev->kfd2kgd->free_memory_of_gpu(pdd->dev->kgd, mem);
+		kfd_process_device_remove_obj_handle(pdd, id);
+	}
+}
+
+static void kfd_process_free_outstanding_kfd_bos(struct kfd_process *p)
+{
+	struct kfd_process_device *pdd;
+
+	list_for_each_entry(pdd, &p->per_device_data, per_device_list)
+		kfd_process_device_free_bos(pdd);
+}
+
 static void kfd_process_destroy_pdds(struct kfd_process *p)
 {
 	struct kfd_process_device *pdd, *temp;
@@ -158,16 +320,20 @@ static void kfd_process_destroy_pdds(struct kfd_process *p)
 		pr_debug("Releasing pdd (topology id %d) for process (pasid %d)\n",
 				pdd->dev->id, p->pasid);
 
-		if (pdd->vm)
+		if (pdd->drm_file)
+			fput(pdd->drm_file);
+		else if (pdd->vm)
 			pdd->dev->kfd2kgd->destroy_process_vm(
 				pdd->dev->kgd, pdd->vm);
 
 		list_del(&pdd->per_device_list);
 
-		if (pdd->qpd.cwsr_kaddr)
+		if (pdd->qpd.cwsr_kaddr && !pdd->qpd.cwsr_base)
 			free_pages((unsigned long)pdd->qpd.cwsr_kaddr,
 				get_order(KFD_CWSR_TBA_TMA_SIZE));
 
+		idr_destroy(&pdd->alloc_idr);
+
 		kfree(pdd);
 	}
 }
@@ -184,6 +350,8 @@ static void kfd_process_wq_release(struct work_struct *work)
 
 	kfd_iommu_unbind_process(p);
 
+	kfd_process_free_outstanding_kfd_bos(p);
+
 	kfd_process_destroy_pdds(p);
 	dma_fence_put(p->ef);
 
@@ -271,18 +439,18 @@ static const struct mmu_notifier_ops kfd_process_mmu_notifier_ops = {
 	.release = kfd_process_notifier_release,
 };
 
-static int kfd_process_init_cwsr(struct kfd_process *p, struct file *filep)
+static int kfd_process_init_cwsr_apu(struct kfd_process *p, struct file *filep)
 {
 	unsigned long  offset;
-	struct kfd_process_device *pdd = NULL;
-	struct kfd_dev *dev = NULL;
-	struct qcm_process_device *qpd = NULL;
+	struct kfd_process_device *pdd;
 
 	list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
-		dev = pdd->dev;
-		qpd = &pdd->qpd;
-		if (!dev->cwsr_enabled || qpd->cwsr_kaddr)
+		struct kfd_dev *dev = pdd->dev;
+		struct qcm_process_device *qpd = &pdd->qpd;
+
+		if (!dev->cwsr_enabled || qpd->cwsr_kaddr || qpd->cwsr_base)
 			continue;
+
 		offset = (dev->id | KFD_MMAP_RESERVED_MEM_MASK) << PAGE_SHIFT;
 		qpd->tba_addr = (int64_t)vm_mmap(filep, 0,
 			KFD_CWSR_TBA_TMA_SIZE, PROT_READ | PROT_EXEC,
@@ -307,6 +475,36 @@ static int kfd_process_init_cwsr(struct kfd_process *p, struct file *filep)
 	return 0;
 }
 
+static int kfd_process_device_init_cwsr_dgpu(struct kfd_process_device *pdd)
+{
+	struct kfd_dev *dev = pdd->dev;
+	struct qcm_process_device *qpd = &pdd->qpd;
+	uint32_t flags = ALLOC_MEM_FLAGS_GTT |
+		ALLOC_MEM_FLAGS_NO_SUBSTITUTE | ALLOC_MEM_FLAGS_EXECUTABLE;
+	void *kaddr;
+	int ret;
+
+	if (!dev->cwsr_enabled || qpd->cwsr_kaddr || !qpd->cwsr_base)
+		return 0;
+
+	/* cwsr_base is only set for dGPU */
+	ret = kfd_process_alloc_gpuvm(pdd, qpd->cwsr_base,
+				      KFD_CWSR_TBA_TMA_SIZE, flags, &kaddr);
+	if (ret)
+		return ret;
+
+	qpd->cwsr_kaddr = kaddr;
+	qpd->tba_addr = qpd->cwsr_base;
+
+	memcpy(qpd->cwsr_kaddr, dev->cwsr_isa, dev->cwsr_isa_size);
+
+	qpd->tma_addr = qpd->tba_addr + KFD_CWSR_TMA_OFFSET;
+	pr_debug("set tba :0x%llx, tma:0x%llx, cwsr_kaddr:%p for pqm.\n",
+		 qpd->tba_addr, qpd->tma_addr, qpd->cwsr_kaddr);
+
+	return 0;
+}
+
 static struct kfd_process *create_process(const struct task_struct *thread,
 					struct file *filep)
 {
@@ -361,13 +559,14 @@ static struct kfd_process *create_process(const struct task_struct *thread,
 	INIT_DELAYED_WORK(&process->restore_work, restore_process_worker);
 	process->last_restore_timestamp = get_jiffies_64();
 
-	err = kfd_process_init_cwsr(process, filep);
+	err = kfd_process_init_cwsr_apu(process, filep);
 	if (err)
 		goto err_init_cwsr;
 
 	return process;
 
 err_init_cwsr:
+	kfd_process_free_outstanding_kfd_bos(process);
 	kfd_process_destroy_pdds(process);
 err_init_apertures:
 	pqm_uninit(&process->pqm);
@@ -418,18 +617,70 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
 	pdd->already_dequeued = false;
 	list_add(&pdd->per_device_list, &p->per_device_data);
 
-	/* Create the GPUVM context for this specific device */
-	if (dev->kfd2kgd->create_process_vm(dev->kgd, &pdd->vm,
-					    &p->kgd_process_info, &p->ef)) {
+	/* Init idr used for memory handle translation */
+	idr_init(&pdd->alloc_idr);
+
+	return pdd;
+}
+
+/**
+ * kfd_process_device_init_vm - Initialize a VM for a process-device
+ *
+ * @pdd: The process-device
+ * @drm_file: Optional pointer to a DRM file descriptor
+ *
+ * If @drm_file is specified, it will be used to acquire the VM from
+ * that file descriptor. If successful, the @pdd takes ownership of
+ * the file descriptor.
+ *
+ * If @drm_file is NULL, a new VM is created.
+ *
+ * Returns 0 on success, -errno on failure.
+ */
+int kfd_process_device_init_vm(struct kfd_process_device *pdd,
+			       struct file *drm_file)
+{
+	struct kfd_process *p;
+	struct kfd_dev *dev;
+	int ret;
+
+	if (pdd->vm)
+		return drm_file ? -EBUSY : 0;
+
+	p = pdd->process;
+	dev = pdd->dev;
+
+	if (drm_file)
+		ret = dev->kfd2kgd->acquire_process_vm(
+			dev->kgd, drm_file,
+			&pdd->vm, &p->kgd_process_info, &p->ef);
+	else
+		ret = dev->kfd2kgd->create_process_vm(
+			dev->kgd, &pdd->vm, &p->kgd_process_info, &p->ef);
+	if (ret) {
 		pr_err("Failed to create process VM object\n");
-		goto err_create_pdd;
+		return ret;
 	}
-	return pdd;
 
-err_create_pdd:
-	list_del(&pdd->per_device_list);
-	kfree(pdd);
-	return NULL;
+	ret = kfd_process_device_reserve_ib_mem(pdd);
+	if (ret)
+		goto err_reserve_ib_mem;
+	ret = kfd_process_device_init_cwsr_dgpu(pdd);
+	if (ret)
+		goto err_init_cwsr;
+
+	pdd->drm_file = drm_file;
+
+	return 0;
+
+err_init_cwsr:
+err_reserve_ib_mem:
+	kfd_process_device_free_bos(pdd);
+	if (!drm_file)
+		dev->kfd2kgd->destroy_process_vm(dev->kgd, pdd->vm);
+	pdd->vm = NULL;
+
+	return ret;
 }
 
 /*
@@ -455,6 +706,10 @@ struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev,
 	if (err)
 		return ERR_PTR(err);
 
+	err = kfd_process_device_init_vm(pdd, NULL);
+	if (err)
+		return ERR_PTR(err);
+
 	return pdd;
 }
 
@@ -480,6 +735,37 @@ bool kfd_has_process_device_data(struct kfd_process *p)
 	return !(list_empty(&p->per_device_data));
 }
 
+/* Create specific handle mapped to mem from process local memory idr
+ * Assumes that the process lock is held.
+ */
+int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd,
+					void *mem)
+{
+	return idr_alloc(&pdd->alloc_idr, mem, 0, 0, GFP_KERNEL);
+}
+
+/* Translate specific handle from process local memory idr
+ * Assumes that the process lock is held.
+ */
+void *kfd_process_device_translate_handle(struct kfd_process_device *pdd,
+					int handle)
+{
+	if (handle < 0)
+		return NULL;
+
+	return idr_find(&pdd->alloc_idr, handle);
+}
+
+/* Remove specific handle from process local memory idr
+ * Assumes that the process lock is held.
+ */
+void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd,
+					int handle)
+{
+	if (handle >= 0)
+		idr_remove(&pdd->alloc_idr, handle);
+}
+
 /* This increments the process->ref counter. */
 struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid)
 {
@@ -605,7 +891,7 @@ static void evict_process_worker(struct work_struct *work)
 		dma_fence_signal(p->ef);
 		dma_fence_put(p->ef);
 		p->ef = NULL;
-		schedule_delayed_work(&p->restore_work,
+		queue_delayed_work(kfd_restore_wq, &p->restore_work,
 				msecs_to_jiffies(PROCESS_RESTORE_TIME_MS));
 
 		pr_debug("Finished evicting pasid %d\n", p->pasid);
@@ -654,7 +940,7 @@ static void restore_process_worker(struct work_struct *work)
 	if (ret) {
 		pr_debug("Failed to restore BOs of pasid %d, retry after %d ms\n",
 			 p->pasid, PROCESS_BACK_OFF_TIME_MS);
-		ret = schedule_delayed_work(&p->restore_work,
+		ret = queue_delayed_work(kfd_restore_wq, &p->restore_work,
 				msecs_to_jiffies(PROCESS_BACK_OFF_TIME_MS));
 		WARN(!ret, "reschedule restore work failed\n");
 		return;
@@ -693,7 +979,7 @@ int kfd_resume_all_processes(void)
 	int ret = 0, idx = srcu_read_lock(&kfd_processes_srcu);
 
 	hash_for_each_rcu(kfd_processes_table, temp, p, kfd_processes) {
-		if (!schedule_delayed_work(&p->restore_work, 0)) {
+		if (!queue_delayed_work(kfd_restore_wq, &p->restore_work, 0)) {
 			pr_err("Restore process %d failed during resume\n",
 			       p->pasid);
 			ret = -EFAULT;

drivers/gpu/drm/amd/amdkfd/kfd_topology.c

@@ -441,6 +441,8 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
 			dev->node_props.device_id);
 	sysfs_show_32bit_prop(buffer, "location_id",
 			dev->node_props.location_id);
+	sysfs_show_32bit_prop(buffer, "drm_render_minor",
+			dev->node_props.drm_render_minor);
 
 	if (dev->gpu) {
 		log_max_watch_addr =
@@ -1214,6 +1216,8 @@ int kfd_topology_add_device(struct kfd_dev *gpu)
 		dev->gpu->kfd2kgd->get_max_engine_clock_in_mhz(dev->gpu->kgd);
 	dev->node_props.max_engine_clk_ccompute =
 		cpufreq_quick_get_max(0) / 1000;
+	dev->node_props.drm_render_minor =
+		gpu->shared_resources.drm_render_minor;
 
 	kfd_fill_mem_clk_max_info(dev);
 	kfd_fill_iolink_non_crat_info(dev);

drivers/gpu/drm/amd/amdkfd/kfd_topology.h

@@ -71,6 +71,7 @@ struct kfd_node_properties {
 	uint32_t location_id;
 	uint32_t max_engine_clk_fcompute;
 	uint32_t max_engine_clk_ccompute;
+	int32_t  drm_render_minor;
 	uint16_t marketing_name[KFD_TOPOLOGY_PUBLIC_NAME_SIZE];
 };
 

drivers/gpu/drm/amd/include/kgd_kfd_interface.h

@@ -130,6 +130,7 @@ struct tile_config {
 
 /*
  * Allocation flag domains
+ * NOTE: This must match the corresponding definitions in kfd_ioctl.h.
  */
 #define ALLOC_MEM_FLAGS_VRAM		(1 << 0)
 #define ALLOC_MEM_FLAGS_GTT		(1 << 1)
@@ -138,6 +139,7 @@ struct tile_config {
 
 /*
  * Allocation flags attributes/access options.
+ * NOTE: This must match the corresponding definitions in kfd_ioctl.h.
  */
 #define ALLOC_MEM_FLAGS_WRITABLE	(1 << 31)
 #define ALLOC_MEM_FLAGS_EXECUTABLE	(1 << 30)
@@ -336,6 +338,8 @@ struct kfd2kgd_calls {
 
 	int (*create_process_vm)(struct kgd_dev *kgd, void **vm,
 			void **process_info, struct dma_fence **ef);
+	int (*acquire_process_vm)(struct kgd_dev *kgd, struct file *filp,
+			void **vm, void **process_info, struct dma_fence **ef);
 	void (*destroy_process_vm)(struct kgd_dev *kgd, void *vm);
 	uint32_t (*get_process_page_dir)(void *vm);
 	void (*set_vm_context_page_table_base)(struct kgd_dev *kgd,

include/uapi/linux/kfd_ioctl.h

@@ -107,8 +107,6 @@ struct kfd_ioctl_get_clock_counters_args {
 	__u32 pad;
 };
 
-#define NUM_OF_SUPPORTED_GPUS 7
-
 struct kfd_process_device_apertures {
 	__u64 lds_base;		/* from KFD */
 	__u64 lds_limit;		/* from KFD */
@@ -120,6 +118,12 @@ struct kfd_process_device_apertures {
 	__u32 pad;
 };
 
+/*
+ * AMDKFD_IOC_GET_PROCESS_APERTURES is deprecated. Use
+ * AMDKFD_IOC_GET_PROCESS_APERTURES_NEW instead, which supports an
+ * unlimited number of GPUs.
+ */
+#define NUM_OF_SUPPORTED_GPUS 7
 struct kfd_ioctl_get_process_apertures_args {
 	struct kfd_process_device_apertures
 			process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */
@@ -129,6 +133,19 @@ struct kfd_ioctl_get_process_apertures_args {
 	__u32 pad;
 };
 
+struct kfd_ioctl_get_process_apertures_new_args {
+	/* User allocated. Pointer to struct kfd_process_device_apertures
+	 * filled in by Kernel
+	 */
+	__u64 kfd_process_device_apertures_ptr;
+	/* to KFD - indicates amount of memory present in
+	 *  kfd_process_device_apertures_ptr
+	 * from KFD - Number of entries filled by KFD.
+	 */
+	__u32 num_of_nodes;
+	__u32 pad;
+};
+
 #define MAX_ALLOWED_NUM_POINTS    100
 #define MAX_ALLOWED_AW_BUFF_SIZE 4096
 #define MAX_ALLOWED_WAC_BUFF_SIZE  128
@@ -269,6 +286,86 @@ struct kfd_ioctl_set_trap_handler_args {
 	__u32 pad;
 };
 
+struct kfd_ioctl_acquire_vm_args {
+	__u32 drm_fd;	/* to KFD */
+	__u32 gpu_id;	/* to KFD */
+};
+
+/* Allocation flags: memory types */
+#define KFD_IOC_ALLOC_MEM_FLAGS_VRAM		(1 << 0)
+#define KFD_IOC_ALLOC_MEM_FLAGS_GTT		(1 << 1)
+#define KFD_IOC_ALLOC_MEM_FLAGS_USERPTR		(1 << 2)
+#define KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL	(1 << 3)
+/* Allocation flags: attributes/access options */
+#define KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE	(1 << 31)
+#define KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE	(1 << 30)
+#define KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC		(1 << 29)
+#define KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE	(1 << 28)
+#define KFD_IOC_ALLOC_MEM_FLAGS_AQL_QUEUE_MEM	(1 << 27)
+#define KFD_IOC_ALLOC_MEM_FLAGS_COHERENT	(1 << 26)
+
+/* Allocate memory for later SVM (shared virtual memory) mapping.
+ *
+ * @va_addr:     virtual address of the memory to be allocated
+ *               all later mappings on all GPUs will use this address
+ * @size:        size in bytes
+ * @handle:      buffer handle returned to user mode, used to refer to
+ *               this allocation for mapping, unmapping and freeing
+ * @mmap_offset: for CPU-mapping the allocation by mmapping a render node
+ *               for userptrs this is overloaded to specify the CPU address
+ * @gpu_id:      device identifier
+ * @flags:       memory type and attributes. See KFD_IOC_ALLOC_MEM_FLAGS above
+ */
+struct kfd_ioctl_alloc_memory_of_gpu_args {
+	__u64 va_addr;		/* to KFD */
+	__u64 size;		/* to KFD */
+	__u64 handle;		/* from KFD */
+	__u64 mmap_offset;	/* to KFD (userptr), from KFD (mmap offset) */
+	__u32 gpu_id;		/* to KFD */
+	__u32 flags;
+};
+
+/* Free memory allocated with kfd_ioctl_alloc_memory_of_gpu
+ *
+ * @handle: memory handle returned by alloc
+ */
+struct kfd_ioctl_free_memory_of_gpu_args {
+	__u64 handle;		/* to KFD */
+};
+
+/* Map memory to one or more GPUs
+ *
+ * @handle:                memory handle returned by alloc
+ * @device_ids_array_ptr:  array of gpu_ids (__u32 per device)
+ * @n_devices:             number of devices in the array
+ * @n_success:             number of devices mapped successfully
+ *
+ * @n_success returns information to the caller how many devices from
+ * the start of the array have mapped the buffer successfully. It can
+ * be passed into a subsequent retry call to skip those devices. For
+ * the first call the caller should initialize it to 0.
+ *
+ * If the ioctl completes with return code 0 (success), n_success ==
+ * n_devices.
+ */
+struct kfd_ioctl_map_memory_to_gpu_args {
+	__u64 handle;			/* to KFD */
+	__u64 device_ids_array_ptr;	/* to KFD */
+	__u32 n_devices;		/* to KFD */
+	__u32 n_success;		/* to/from KFD */
+};
+
+/* Unmap memory from one or more GPUs
+ *
+ * same arguments as for mapping
+ */
+struct kfd_ioctl_unmap_memory_from_gpu_args {
+	__u64 handle;			/* to KFD */
+	__u64 device_ids_array_ptr;	/* to KFD */
+	__u32 n_devices;		/* to KFD */
+	__u32 n_success;		/* to/from KFD */
+};
+
 #define AMDKFD_IOCTL_BASE 'K'
 #define AMDKFD_IO(nr)			_IO(AMDKFD_IOCTL_BASE, nr)
 #define AMDKFD_IOR(nr, type)		_IOR(AMDKFD_IOCTL_BASE, nr, type)
@@ -332,7 +429,26 @@ struct kfd_ioctl_set_trap_handler_args {
 #define AMDKFD_IOC_SET_TRAP_HANDLER		\
 		AMDKFD_IOW(0x13, struct kfd_ioctl_set_trap_handler_args)
 
+#define AMDKFD_IOC_GET_PROCESS_APERTURES_NEW	\
+		AMDKFD_IOWR(0x14,		\
+			struct kfd_ioctl_get_process_apertures_new_args)
+
+#define AMDKFD_IOC_ACQUIRE_VM			\
+		AMDKFD_IOW(0x15, struct kfd_ioctl_acquire_vm_args)
+
+#define AMDKFD_IOC_ALLOC_MEMORY_OF_GPU		\
+		AMDKFD_IOWR(0x16, struct kfd_ioctl_alloc_memory_of_gpu_args)
+
+#define AMDKFD_IOC_FREE_MEMORY_OF_GPU		\
+		AMDKFD_IOW(0x17, struct kfd_ioctl_free_memory_of_gpu_args)
+
+#define AMDKFD_IOC_MAP_MEMORY_TO_GPU		\
+		AMDKFD_IOWR(0x18, struct kfd_ioctl_map_memory_to_gpu_args)
+
+#define AMDKFD_IOC_UNMAP_MEMORY_FROM_GPU	\
+		AMDKFD_IOWR(0x19, struct kfd_ioctl_unmap_memory_from_gpu_args)
+
 #define AMDKFD_COMMAND_START		0x01
-#define AMDKFD_COMMAND_END		0x14
+#define AMDKFD_COMMAND_END		0x1A
 
 #endif