drm/tegra/uapi.c

31 static void tegra_drm_channel_context_close(struct tegra_drm_context *context)
36 	if (context->memory_context)
37 		host1x_memory_context_put(context->memory_context);
39 	xa_for_each(&context->mappings, id, mapping)
42 	xa_destroy(&context->mappings);
44 	host1x_channel_put(context->channel);
46 	kfree(context);
51 	struct tegra_drm_context *context;
55 	xa_for_each(&file->contexts, id, context)
56 		tegra_drm_channel_context_close(context);
83 	struct tegra_drm_context *context;
89 	context = kzalloc(sizeof(*context), GFP_KERNEL);
90 	if (!context)
100 		context->channel = host1x_channel_get(client->shared_channel);
102 		context->channel = host1x_channel_request(&client->base);
103 		if (!context->channel) {
109 	/* Only allocate context if the engine supports context isolation. */
118 			context->memory_context = host1x_memory_context_alloc(
121 		if (IS_ERR(context->memory_context)) {
122 			if (PTR_ERR(context->memory_context) != -EOPNOTSUPP) {
123 				err = PTR_ERR(context->memory_context);
130 				context->memory_context = NULL;
135 	err = xa_alloc(&fpriv->contexts, &args->context, context, XA_LIMIT(1, U32_MAX),
140 	context->client = client;
141 	xa_init_flags(&context->mappings, XA_FLAGS_ALLOC1);
152 	if (context->memory_context)
153 		host1x_memory_context_put(context->memory_context);
155 	host1x_channel_put(context->channel);
157 	kfree(context);
166 	struct tegra_drm_context *context;
170 	context = xa_load(&fpriv->contexts, args->context);
171 	if (!context) {
176 	xa_erase(&fpriv->contexts, args->context);
180 	tegra_drm_channel_context_close(context);
190 	struct tegra_drm_context *context;
200 	context = xa_load(&fpriv->contexts, args->context);
201 	if (!context) {
214 	if (context->memory_context)
215 		mapping_dev = &context->memory_context->dev;
217 		mapping_dev = context->client->base.dev;
252 	err = xa_alloc(&context->mappings, &args->mapping, mapping, XA_LIMIT(1, U32_MAX),
277 	struct tegra_drm_context *context;
281 	context = xa_load(&fpriv->contexts, args->context);
282 	if (!context) {
287 	mapping = xa_erase(&context->mappings, args->mapping);