1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/host1x.h>
46 	struct drm_device *dev = dev_get_drvdata(client->host);  in gr3d_init()
51 	gr3d->channel = host1x_channel_request(client);  in gr3d_init()
52 	if (!gr3d->channel)  in gr3d_init()
53 		return -ENOMEM;  in gr3d_init()
55 	client->syncpts[0] = host1x_syncpt_request(client, flags);  in gr3d_init()
56 	if (!client->syncpts[0]) {  in gr3d_init()
57 		err = -ENOMEM;  in gr3d_init()
58 		dev_err(client->dev, "failed to request syncpoint: %d\n", err);  in gr3d_init()
64 		dev_err(client->dev, "failed to attach to domain: %d\n", err);  in gr3d_init()
68 	err = tegra_drm_register_client(dev->dev_private, drm);  in gr3d_init()
70 		dev_err(client->dev, "failed to register client: %d\n", err);  in gr3d_init()
79 	host1x_syncpt_free(client->syncpts[0]);  in gr3d_init()
81 	host1x_channel_put(gr3d->channel);  in gr3d_init()
88 	struct drm_device *dev = dev_get_drvdata(client->host);  in gr3d_exit()
92 	err = tegra_drm_unregister_client(dev->dev_private, drm);  in gr3d_exit()
97 	host1x_syncpt_free(client->syncpts[0]);  in gr3d_exit()
98 	host1x_channel_put(gr3d->channel);  in gr3d_exit()
113 	context->channel = host1x_channel_get(gr3d->channel);  in gr3d_open_channel()
114 	if (!context->channel)  in gr3d_open_channel()
115 		return -ENOMEM;  in gr3d_open_channel()
122 	host1x_channel_put(context->channel);  in gr3d_close_channel()
125 static int gr3d_is_addr_reg(struct device *dev, u32 class, u32 offset)  in gr3d_is_addr_reg()  argument
129 	switch (class) {  in gr3d_is_addr_reg()
140 		if (test_bit(offset, gr3d->addr_regs))  in gr3d_is_addr_reg()
169 	{ .compatible = "nvidia,tegra114-gr3d", .data = &tegra114_gr3d_soc },
170 	{ .compatible = "nvidia,tegra30-gr3d", .data = &tegra30_gr3d_soc },
171 	{ .compatible = "nvidia,tegra20-gr3d", .data = &tegra20_gr3d_soc },
283 	struct device_node *np = pdev->dev.of_node;  in gr3d_probe()
289 	gr3d = devm_kzalloc(&pdev->dev, sizeof(*gr3d), GFP_KERNEL);  in gr3d_probe()
291 		return -ENOMEM;  in gr3d_probe()
293 	gr3d->soc = of_device_get_match_data(&pdev->dev);  in gr3d_probe()
295 	syncpts = devm_kzalloc(&pdev->dev, sizeof(*syncpts), GFP_KERNEL);  in gr3d_probe()
297 		return -ENOMEM;  in gr3d_probe()
299 	gr3d->clk = devm_clk_get(&pdev->dev, NULL);  in gr3d_probe()
300 	if (IS_ERR(gr3d->clk)) {  in gr3d_probe()
301 		dev_err(&pdev->dev, "cannot get clock\n");  in gr3d_probe()
302 		return PTR_ERR(gr3d->clk);  in gr3d_probe()
305 	gr3d->rst = devm_reset_control_get(&pdev->dev, "3d");  in gr3d_probe()
306 	if (IS_ERR(gr3d->rst)) {  in gr3d_probe()
307 		dev_err(&pdev->dev, "cannot get reset\n");  in gr3d_probe()
308 		return PTR_ERR(gr3d->rst);  in gr3d_probe()
311 	if (of_device_is_compatible(np, "nvidia,tegra30-gr3d")) {  in gr3d_probe()
312 		gr3d->clk_secondary = devm_clk_get(&pdev->dev, "3d2");  in gr3d_probe()
313 		if (IS_ERR(gr3d->clk_secondary)) {  in gr3d_probe()
314 			dev_err(&pdev->dev, "cannot get secondary clock\n");  in gr3d_probe()
315 			return PTR_ERR(gr3d->clk_secondary);  in gr3d_probe()
318 		gr3d->rst_secondary = devm_reset_control_get(&pdev->dev,  in gr3d_probe()
320 		if (IS_ERR(gr3d->rst_secondary)) {  in gr3d_probe()
321 			dev_err(&pdev->dev, "cannot get secondary reset\n");  in gr3d_probe()
322 			return PTR_ERR(gr3d->rst_secondary);  in gr3d_probe()
326 	err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D, gr3d->clk,  in gr3d_probe()
327 						gr3d->rst);  in gr3d_probe()
329 		dev_err(&pdev->dev, "failed to power up 3D unit\n");  in gr3d_probe()
333 	if (gr3d->clk_secondary) {  in gr3d_probe()
335 							gr3d->clk_secondary,  in gr3d_probe()
336 							gr3d->rst_secondary);  in gr3d_probe()
338 			dev_err(&pdev->dev,  in gr3d_probe()
344 	INIT_LIST_HEAD(&gr3d->client.base.list);  in gr3d_probe()
345 	gr3d->client.base.ops = &gr3d_client_ops;  in gr3d_probe()
346 	gr3d->client.base.dev = &pdev->dev;  in gr3d_probe()
347 	gr3d->client.base.class = HOST1X_CLASS_GR3D;  in gr3d_probe()
348 	gr3d->client.base.syncpts = syncpts;  in gr3d_probe()
349 	gr3d->client.base.num_syncpts = 1;  in gr3d_probe()
351 	INIT_LIST_HEAD(&gr3d->client.list);  in gr3d_probe()
352 	gr3d->client.version = gr3d->soc->version;  in gr3d_probe()
353 	gr3d->client.ops = &gr3d_ops;  in gr3d_probe()
355 	err = host1x_client_register(&gr3d->client.base);  in gr3d_probe()
357 		dev_err(&pdev->dev, "failed to register host1x client: %d\n",  in gr3d_probe()
364 		set_bit(gr3d_addr_regs[i], gr3d->addr_regs);  in gr3d_probe()
376 	err = host1x_client_unregister(&gr3d->client.base);  in gr3d_remove()
378 		dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",  in gr3d_remove()
383 	if (gr3d->clk_secondary) {  in gr3d_remove()
384 		reset_control_assert(gr3d->rst_secondary);  in gr3d_remove()
386 		clk_disable_unprepare(gr3d->clk_secondary);  in gr3d_remove()
389 	reset_control_assert(gr3d->rst);  in gr3d_remove()
391 	clk_disable_unprepare(gr3d->clk);  in gr3d_remove()
398 		.name = "tegra-gr3d",