subdev/mmu/mem.c

23 #include "mem.h"
35 	struct page **mem;
57 	struct nvkm_mem *mem = nvkm_mem(memory);
58 	if (mem->pages == 1 && mem->mem)
59 		return mem->dma[0];
73 	struct nvkm_mem *mem = nvkm_mem(memory);
75 		.memory = &mem->memory,
77 		.dma = mem->dma,
85 	struct nvkm_mem *mem = nvkm_mem(memory);
86 	if (mem->mem) {
87 		while (mem->pages--) {
88 			dma_unmap_page(mem->mmu->subdev.device->dev,
89 				       mem->dma[mem->pages], PAGE_SIZE,
91 			__free_page(mem->mem[mem->pages]);
93 		kvfree(mem->dma);
94 		kvfree(mem->mem);
96 	return mem;
113 	struct nvkm_mem *mem = nvkm_mem(memory);
115 		.memory = &mem->memory,
117 		.sgl = mem->sgl,
135 	struct nvkm_mem *mem = nvkm_mem(memory);
136 	if (mem->mem) {
137 		*pmap = vmap(mem->mem, mem->pages, VM_MAP, PAGE_KERNEL);
154 	struct nvkm_mem *mem;
166 	if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
168 	mem->target = target;
169 	mem->mmu = mmu;
170 	*pmemory = &mem->memory;
174 			nvkm_memory_ctor(&nvkm_mem_dma, &mem->memory);
175 			mem->dma = args->v0.dma;
177 			nvkm_memory_ctor(&nvkm_mem_sgl, &mem->memory);
178 			mem->sgl = args->v0.sgl;
183 		mem->pages = size >> PAGE_SHIFT;
187 		kfree(mem);
191 	nvkm_memory_ctor(&nvkm_mem_dma, &mem->memory);
194 	if (!(mem->mem = kvmalloc_array(size, sizeof(*mem->mem), GFP_KERNEL)))
196 	if (!(mem->dma = kvmalloc_array(size, sizeof(*mem->dma), GFP_KERNEL)))
204 	for (mem->pages = 0; size; size--, mem->pages++) {
209 		mem->dma[mem->pages] = dma_map_page(mmu->subdev.device->dev,
212 		if (dma_mapping_error(dev, mem->dma[mem->pages])) {
217 		mem->mem[mem->pages] = p;
231 		ret = mmu->func->mem.vram(mmu, type, page, size,