16 static void etnaviv_context_unmap(struct etnaviv_iommu_context *context,  in etnaviv_context_unmap()  argument
29 		unmapped_page = context->global->ops->unmap(context, iova,  in etnaviv_context_unmap()
39 static int etnaviv_context_map(struct etnaviv_iommu_context *context,  in etnaviv_context_map()  argument
55 		ret = context->global->ops->map(context, iova, paddr, pgsize,  in etnaviv_context_map()
67 		etnaviv_context_unmap(context, orig_iova, orig_size - size);  in etnaviv_context_map()
72 static int etnaviv_iommu_map(struct etnaviv_iommu_context *context, u32 iova,  in etnaviv_iommu_map()  argument
79 	if (!context || !sgt)  in etnaviv_iommu_map()
88 		ret = etnaviv_context_map(context, da, pa, bytes, prot);  in etnaviv_iommu_map()
95 	context->flush_seq++;  in etnaviv_iommu_map()
100 	etnaviv_context_unmap(context, iova, da - iova);  in etnaviv_iommu_map()
104 static void etnaviv_iommu_unmap(struct etnaviv_iommu_context *context, u32 iova,  in etnaviv_iommu_unmap()  argument
114 		etnaviv_context_unmap(context, da, bytes);  in etnaviv_iommu_unmap()
123 	context->flush_seq++;  in etnaviv_iommu_unmap()
126 static void etnaviv_iommu_remove_mapping(struct etnaviv_iommu_context *context,  in etnaviv_iommu_remove_mapping()  argument
131 	lockdep_assert_held(&context->lock);  in etnaviv_iommu_remove_mapping()
133 	etnaviv_iommu_unmap(context, mapping->vram_node.start,  in etnaviv_iommu_remove_mapping()
138 static int etnaviv_iommu_find_iova(struct etnaviv_iommu_context *context,  in etnaviv_iommu_find_iova()  argument
145 	lockdep_assert_held(&context->lock);  in etnaviv_iommu_find_iova()
153 		ret = drm_mm_insert_node_in_range(&context->mm, node,  in etnaviv_iommu_find_iova()
159 		drm_mm_scan_init(&scan, &context->mm, size, 0, 0, mode);  in etnaviv_iommu_find_iova()
163 		list_for_each_entry(free, &context->mappings, mmu_node) {  in etnaviv_iommu_find_iova()
205 			etnaviv_iommu_remove_mapping(context, m);  in etnaviv_iommu_find_iova()
206 			etnaviv_iommu_context_put(m->context);  in etnaviv_iommu_find_iova()
207 			m->context = NULL;  in etnaviv_iommu_find_iova()
223 static int etnaviv_iommu_insert_exact(struct etnaviv_iommu_context *context,  in etnaviv_iommu_insert_exact()  argument
231 	lockdep_assert_held(&context->lock);  in etnaviv_iommu_insert_exact()
233 	ret = drm_mm_insert_node_in_range(&context->mm, node, size, 0, 0, va,  in etnaviv_iommu_insert_exact()
244 	 * destroyed yet (likely due to being referenced by another context) in  in etnaviv_iommu_insert_exact()
249 	drm_mm_for_each_node_in_range(scan_node, &context->mm, va, va + size) {  in etnaviv_iommu_insert_exact()
260 		etnaviv_iommu_remove_mapping(context, m);  in etnaviv_iommu_insert_exact()
261 		etnaviv_iommu_context_put(m->context);  in etnaviv_iommu_insert_exact()
262 		m->context = NULL;  in etnaviv_iommu_insert_exact()
267 	return drm_mm_insert_node_in_range(&context->mm, node, size, 0, 0, va,  in etnaviv_iommu_insert_exact()
271 int etnaviv_iommu_map_gem(struct etnaviv_iommu_context *context,  in etnaviv_iommu_map_gem()  argument
281 	mutex_lock(&context->lock);  in etnaviv_iommu_map_gem()
284 	if (context->global->version == ETNAVIV_IOMMU_V1 &&  in etnaviv_iommu_map_gem()
291 			mapping->context = etnaviv_iommu_context_get(context);  in etnaviv_iommu_map_gem()
292 			list_add_tail(&mapping->mmu_node, &context->mappings);  in etnaviv_iommu_map_gem()
301 		ret = etnaviv_iommu_insert_exact(context, node,  in etnaviv_iommu_map_gem()
304 		ret = etnaviv_iommu_find_iova(context, node,  in etnaviv_iommu_map_gem()
310 	ret = etnaviv_iommu_map(context, node->start, sgt, etnaviv_obj->base.size,  in etnaviv_iommu_map_gem()
318 	mapping->context = etnaviv_iommu_context_get(context);  in etnaviv_iommu_map_gem()
319 	list_add_tail(&mapping->mmu_node, &context->mappings);  in etnaviv_iommu_map_gem()
321 	mutex_unlock(&context->lock);  in etnaviv_iommu_map_gem()
326 void etnaviv_iommu_unmap_gem(struct etnaviv_iommu_context *context,  in etnaviv_iommu_unmap_gem()  argument
331 	mutex_lock(&context->lock);  in etnaviv_iommu_unmap_gem()
334 	if (!mapping->context) {  in etnaviv_iommu_unmap_gem()
335 		mutex_unlock(&context->lock);  in etnaviv_iommu_unmap_gem()
340 	if (mapping->vram_node.mm == &context->mm)  in etnaviv_iommu_unmap_gem()
341 		etnaviv_iommu_remove_mapping(context, mapping);  in etnaviv_iommu_unmap_gem()
344 	mutex_unlock(&context->lock);  in etnaviv_iommu_unmap_gem()
345 	etnaviv_iommu_context_put(context);  in etnaviv_iommu_unmap_gem()
350 	struct etnaviv_iommu_context *context =  in etnaviv_iommu_context_free()  local
353 	etnaviv_cmdbuf_suballoc_unmap(context, &context->cmdbuf_mapping);  in etnaviv_iommu_context_free()
355 	context->global->ops->free(context);  in etnaviv_iommu_context_free()
357 void etnaviv_iommu_context_put(struct etnaviv_iommu_context *context)  in etnaviv_iommu_context_put()  argument
359 	kref_put(&context->refcount, etnaviv_iommu_context_free);  in etnaviv_iommu_context_put()
399 			   struct etnaviv_iommu_context *context)  in etnaviv_iommu_restore()  argument
401 	context->global->ops->restore(gpu, context);  in etnaviv_iommu_restore()
404 int etnaviv_iommu_get_suballoc_va(struct etnaviv_iommu_context *context,  in etnaviv_iommu_get_suballoc_va()  argument
409 	mutex_lock(&context->lock);  in etnaviv_iommu_get_suballoc_va()
413 		mutex_unlock(&context->lock);  in etnaviv_iommu_get_suballoc_va()
423 	if (context->global->version == ETNAVIV_IOMMU_V1) {  in etnaviv_iommu_get_suballoc_va()
429 		ret = etnaviv_iommu_find_iova(context, node, size);  in etnaviv_iommu_get_suballoc_va()
431 			mutex_unlock(&context->lock);  in etnaviv_iommu_get_suballoc_va()
436 		ret = etnaviv_context_map(context, node->start, paddr, size,  in etnaviv_iommu_get_suballoc_va()
440 			mutex_unlock(&context->lock);  in etnaviv_iommu_get_suballoc_va()
444 		context->flush_seq++;  in etnaviv_iommu_get_suballoc_va()
447 	list_add_tail(&mapping->mmu_node, &context->mappings);  in etnaviv_iommu_get_suballoc_va()
450 	mutex_unlock(&context->lock);  in etnaviv_iommu_get_suballoc_va()
455 void etnaviv_iommu_put_suballoc_va(struct etnaviv_iommu_context *context,  in etnaviv_iommu_put_suballoc_va()  argument
460 	mutex_lock(&context->lock);  in etnaviv_iommu_put_suballoc_va()
463 	if (mapping->use > 0 || context->global->version == ETNAVIV_IOMMU_V1) {  in etnaviv_iommu_put_suballoc_va()
464 		mutex_unlock(&context->lock);  in etnaviv_iommu_put_suballoc_va()
468 	etnaviv_context_unmap(context, node->start, node->size);  in etnaviv_iommu_put_suballoc_va()
470 	mutex_unlock(&context->lock);  in etnaviv_iommu_put_suballoc_va()
473 size_t etnaviv_iommu_dump_size(struct etnaviv_iommu_context *context)  in etnaviv_iommu_dump_size()  argument
475 	return context->global->ops->dump_size(context);  in etnaviv_iommu_dump_size()
478 void etnaviv_iommu_dump(struct etnaviv_iommu_context *context, void *buf)  in etnaviv_iommu_dump()  argument
480 	context->global->ops->dump(context, buf);  in etnaviv_iommu_dump()