drm/nouveau/imem/nv50-: use new interfaces for vmm operations

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c

@@ -52,7 +52,7 @@
 
 struct gk20a_instobj {
 	struct nvkm_memory memory;
-	struct nvkm_mem mem;
+	struct nvkm_mm_node *mn;
 	struct gk20a_instmem *imem;
 
 	/* CPU mapping */
@@ -129,13 +129,13 @@ gk20a_instobj_page(struct nvkm_memory *memory)
 static u64
 gk20a_instobj_addr(struct nvkm_memory *memory)
 {
-	return gk20a_instobj(memory)->mem.offset;
+	return (u64)gk20a_instobj(memory)->mn->offset << 12;
 }
 
 static u64
 gk20a_instobj_size(struct nvkm_memory *memory)
 {
-	return (u64)gk20a_instobj(memory)->mem.size << 12;
+	return (u64)gk20a_instobj(memory)->mn->length << 12;
 }
 
 /*
@@ -284,8 +284,22 @@ gk20a_instobj_map(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
 		  struct nvkm_vma *vma, void *argv, u32 argc)
 {
 	struct gk20a_instobj *node = gk20a_instobj(memory);
-	nvkm_vm_map_at(vma, 0, &node->mem);
-	return 0;
+	struct nvkm_vmm_map map = {
+		.memory = &node->memory,
+		.offset = offset,
+		.mem = node->mn,
+	};
+
+	if (vma->vm) {
+		struct nvkm_mem mem = {
+			.mem = node->mn,
+			.memory = &node->memory,
+		};
+		nvkm_vm_map_at(vma, 0, &mem);
+		return 0;
+	}
+
+	return nvkm_vmm_map(vmm, vma, argv, argc, &map);
 }
 
 static void *
@@ -298,8 +312,8 @@ gk20a_instobj_dtor_dma(struct nvkm_memory *memory)
 	if (unlikely(!node->base.vaddr))
 		goto out;
 
-	dma_free_attrs(dev, node->base.mem.size << PAGE_SHIFT, node->base.vaddr,
-		       node->handle, imem->attrs);
+	dma_free_attrs(dev, (u64)node->base.mn->length << PAGE_SHIFT,
+		       node->base.vaddr, node->handle, imem->attrs);
 
 out:
 	return node;
@@ -311,7 +325,7 @@ gk20a_instobj_dtor_iommu(struct nvkm_memory *memory)
 	struct gk20a_instobj_iommu *node = gk20a_instobj_iommu(memory);
 	struct gk20a_instmem *imem = node->base.imem;
 	struct device *dev = imem->base.subdev.device->dev;
-	struct nvkm_mm_node *r = node->base.mem.mem;
+	struct nvkm_mm_node *r = node->base.mn;
 	int i;
 
 	if (unlikely(!r))
@@ -329,7 +343,7 @@ gk20a_instobj_dtor_iommu(struct nvkm_memory *memory)
 	r->offset &= ~BIT(imem->iommu_bit - imem->iommu_pgshift);
 
 	/* Unmap pages from GPU address space and free them */
-	for (i = 0; i < node->base.mem.size; i++) {
+	for (i = 0; i < node->base.mn->length; i++) {
 		iommu_unmap(imem->domain,
 			    (r->offset + i) << imem->iommu_pgshift, PAGE_SIZE);
 		dma_unmap_page(dev, node->dma_addrs[i], PAGE_SIZE,
@@ -410,8 +424,7 @@ gk20a_instobj_ctor_dma(struct gk20a_instmem *imem, u32 npages, u32 align,
 	node->r.offset = node->handle >> 12;
 	node->r.length = (npages << PAGE_SHIFT) >> 12;
 
-	node->base.mem.offset = node->handle;
-	node->base.mem.mem = &node->r;
+	node->base.mn = &node->r;
 	return 0;
 }
 
@@ -488,8 +501,7 @@ gk20a_instobj_ctor_iommu(struct gk20a_instmem *imem, u32 npages, u32 align,
 	/* IOMMU bit tells that an address is to be resolved through the IOMMU */
 	r->offset |= BIT(imem->iommu_bit - imem->iommu_pgshift);
 
-	node->base.mem.offset = ((u64)r->offset) << imem->iommu_pgshift;
-	node->base.mem.mem = r;
+	node->base.mn = r;
 	return 0;
 
 release_area:
@@ -537,13 +549,8 @@ gk20a_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero,
 
 	node->imem = imem;
 
-	/* present memory for being mapped using small pages */
-	node->mem.size = size >> 12;
-	node->mem.memtype = 0;
-	node->mem.memory = &node->memory;
-
 	nvkm_debug(subdev, "alloc size: 0x%x, align: 0x%x, gaddr: 0x%llx\n",
-		   size, align, node->mem.offset);
+		   size, align, (u64)node->mn->offset << 12);
 
 	return 0;
 }

drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c

@@ -46,7 +46,7 @@ struct nv50_instobj {
 	struct nvkm_instobj base;
 	struct nv50_instmem *imem;
 	struct nvkm_memory *ram;
-	struct nvkm_vma bar;
+	struct nvkm_vma *bar;
 	refcount_t maps;
 	void *map;
 	struct list_head lru;
@@ -124,7 +124,7 @@ nv50_instobj_kmap(struct nv50_instobj *iobj, struct nvkm_vmm *vmm)
 	struct nvkm_memory *memory = &iobj->base.memory;
 	struct nvkm_subdev *subdev = &imem->base.subdev;
 	struct nvkm_device *device = subdev->device;
-	struct nvkm_vma bar = {}, ebar;
+	struct nvkm_vma *bar = NULL, *ebar;
 	u64 size = nvkm_memory_size(memory);
 	void *emap;
 	int ret;
@@ -134,7 +134,7 @@ nv50_instobj_kmap(struct nv50_instobj *iobj, struct nvkm_vmm *vmm)
 	 * to the possibility of recursion for page table allocation.
 	 */
 	mutex_unlock(&subdev->mutex);
-	while ((ret = nvkm_vm_get(vmm, size, 12, NV_MEM_ACCESS_RW, &bar))) {
+	while ((ret = nvkm_vmm_get(vmm, 12, size, &bar))) {
 		/* Evict unused mappings, and keep retrying until we either
 		 * succeed,or there's no more objects left on the LRU.
 		 */
@@ -144,10 +144,10 @@ nv50_instobj_kmap(struct nv50_instobj *iobj, struct nvkm_vmm *vmm)
 			nvkm_debug(subdev, "evict %016llx %016llx @ %016llx\n",
 				   nvkm_memory_addr(&eobj->base.memory),
 				   nvkm_memory_size(&eobj->base.memory),
-				   eobj->bar.offset);
+				   eobj->bar->addr);
 			list_del_init(&eobj->lru);
 			ebar = eobj->bar;
-			eobj->bar.node = NULL;
+			eobj->bar = NULL;
 			emap = eobj->map;
 			eobj->map = NULL;
 		}
@@ -155,16 +155,16 @@ nv50_instobj_kmap(struct nv50_instobj *iobj, struct nvkm_vmm *vmm)
 		if (!eobj)
 			break;
 		iounmap(emap);
-		nvkm_vm_put(&ebar);
+		nvkm_vmm_put(vmm, &ebar);
 	}
 
 	if (ret == 0)
-		ret = nvkm_memory_map(memory, 0, vmm, &bar, NULL, 0);
+		ret = nvkm_memory_map(memory, 0, vmm, bar, NULL, 0);
 	mutex_lock(&subdev->mutex);
-	if (ret || iobj->bar.node) {
+	if (ret || iobj->bar) {
 		/* We either failed, or another thread beat us. */
 		mutex_unlock(&subdev->mutex);
-		nvkm_vm_put(&bar);
+		nvkm_vmm_put(vmm, &bar);
 		mutex_lock(&subdev->mutex);
 		return;
 	}
@@ -172,10 +172,10 @@ nv50_instobj_kmap(struct nv50_instobj *iobj, struct nvkm_vmm *vmm)
 	/* Make the mapping visible to the host. */
 	iobj->bar = bar;
 	iobj->map = ioremap_wc(device->func->resource_addr(device, 3) +
-			       (u32)iobj->bar.offset, size);
+			       (u32)iobj->bar->addr, size);
 	if (!iobj->map) {
 		nvkm_warn(subdev, "PRAMIN ioremap failed\n");
-		nvkm_vm_put(&iobj->bar);
+		nvkm_vmm_put(vmm, &iobj->bar);
 	}
 }
 
@@ -299,7 +299,7 @@ nv50_instobj_dtor(struct nvkm_memory *memory)
 {
 	struct nv50_instobj *iobj = nv50_instobj(memory);
 	struct nvkm_instmem *imem = &iobj->imem->base;
-	struct nvkm_vma bar;
+	struct nvkm_vma *bar;
 	void *map = map;
 
 	mutex_lock(&imem->subdev.mutex);
@@ -310,8 +310,10 @@ nv50_instobj_dtor(struct nvkm_memory *memory)
 	mutex_unlock(&imem->subdev.mutex);
 
 	if (map) {
+		struct nvkm_vmm *vmm = nvkm_bar_bar2_vmm(imem->subdev.device);
 		iounmap(map);
-		nvkm_vm_put(&bar);
+		if (likely(vmm)) /* Can be NULL during BAR destructor. */
+			nvkm_vmm_put(vmm, &bar);
 	}
 
 	nvkm_memory_unref(&iobj->ram);