[deliverable/linux.git] / drivers / gpu / drm / tegra / gr3d.c

/*
 * Copyright (C) 2013 Avionic Design GmbH
 * Copyright (C) 2013 NVIDIA Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/clk.h>
#include <linux/host1x.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/tegra-powergate.h>

#include "drm.h"
#include "gem.h"
#include "gr3d.h"

struct gr3d {
	struct tegra_drm_client client;
	struct host1x_channel *channel;
	struct clk *clk_secondary;
	struct clk *clk;
	struct reset_control *rst_secondary;
	struct reset_control *rst;

	DECLARE_BITMAP(addr_regs, GR3D_NUM_REGS);
};

static inline struct gr3d *to_gr3d(struct tegra_drm_client *client)
{
	return container_of(client, struct gr3d, client);
}

static int gr3d_init(struct host1x_client *client)
{
	struct tegra_drm_client *drm = host1x_to_drm_client(client);
	struct drm_device *dev = dev_get_drvdata(client->parent);
	unsigned long flags = HOST1X_SYNCPT_HAS_BASE;
	struct gr3d *gr3d = to_gr3d(drm);

	gr3d->channel = host1x_channel_request(client->dev);
	if (!gr3d->channel)
		return -ENOMEM;

	client->syncpts[0] = host1x_syncpt_request(client->dev, flags);
	if (!client->syncpts[0]) {
		host1x_channel_free(gr3d->channel);
		return -ENOMEM;
	}

	return tegra_drm_register_client(dev->dev_private, drm);
}

static int gr3d_exit(struct host1x_client *client)
{
	struct tegra_drm_client *drm = host1x_to_drm_client(client);
	struct drm_device *dev = dev_get_drvdata(client->parent);
	struct gr3d *gr3d = to_gr3d(drm);
	int err;

	err = tegra_drm_unregister_client(dev->dev_private, drm);
	if (err < 0)
		return err;

	host1x_syncpt_free(client->syncpts[0]);
	host1x_channel_free(gr3d->channel);

	return 0;
}

static const struct host1x_client_ops gr3d_client_ops = {
	.init = gr3d_init,
	.exit = gr3d_exit,
};

static int gr3d_open_channel(struct tegra_drm_client *client,
			     struct tegra_drm_context *context)
{
	struct gr3d *gr3d = to_gr3d(client);

	context->channel = host1x_channel_get(gr3d->channel);
	if (!context->channel)
		return -ENOMEM;

	return 0;
}

static void gr3d_close_channel(struct tegra_drm_context *context)
{
	host1x_channel_put(context->channel);
}

static int gr3d_is_addr_reg(struct device *dev, u32 class, u32 offset)
{
	struct gr3d *gr3d = dev_get_drvdata(dev);

	switch (class) {
	case HOST1X_CLASS_HOST1X:
		if (offset == 0x2b)
			return 1;

		break;

	case HOST1X_CLASS_GR3D:
		if (offset >= GR3D_NUM_REGS)
			break;

		if (test_bit(offset, gr3d->addr_regs))
			return 1;

		break;
	}

	return 0;
}

static const struct tegra_drm_client_ops gr3d_ops = {
	.open_channel = gr3d_open_channel,
	.close_channel = gr3d_close_channel,
	.is_addr_reg = gr3d_is_addr_reg,
	.submit = tegra_drm_submit,
};

static const struct of_device_id tegra_gr3d_match[] = {
	{ .compatible = "nvidia,tegra114-gr3d" },
	{ .compatible = "nvidia,tegra30-gr3d" },
	{ .compatible = "nvidia,tegra20-gr3d" },
	{ }
};

static const u32 gr3d_addr_regs[] = {
	GR3D_IDX_ATTRIBUTE( 0),
	GR3D_IDX_ATTRIBUTE( 1),
	GR3D_IDX_ATTRIBUTE( 2),
	GR3D_IDX_ATTRIBUTE( 3),
	GR3D_IDX_ATTRIBUTE( 4),
	GR3D_IDX_ATTRIBUTE( 5),
	GR3D_IDX_ATTRIBUTE( 6),
	GR3D_IDX_ATTRIBUTE( 7),
	GR3D_IDX_ATTRIBUTE( 8),
	GR3D_IDX_ATTRIBUTE( 9),
	GR3D_IDX_ATTRIBUTE(10),
	GR3D_IDX_ATTRIBUTE(11),
	GR3D_IDX_ATTRIBUTE(12),
	GR3D_IDX_ATTRIBUTE(13),
	GR3D_IDX_ATTRIBUTE(14),
	GR3D_IDX_ATTRIBUTE(15),
	GR3D_IDX_INDEX_BASE,
	GR3D_QR_ZTAG_ADDR,
	GR3D_QR_CTAG_ADDR,
	GR3D_QR_CZ_ADDR,
	GR3D_TEX_TEX_ADDR( 0),
	GR3D_TEX_TEX_ADDR( 1),
	GR3D_TEX_TEX_ADDR( 2),
	GR3D_TEX_TEX_ADDR( 3),
	GR3D_TEX_TEX_ADDR( 4),
	GR3D_TEX_TEX_ADDR( 5),
	GR3D_TEX_TEX_ADDR( 6),
	GR3D_TEX_TEX_ADDR( 7),
	GR3D_TEX_TEX_ADDR( 8),
	GR3D_TEX_TEX_ADDR( 9),
	GR3D_TEX_TEX_ADDR(10),
	GR3D_TEX_TEX_ADDR(11),
	GR3D_TEX_TEX_ADDR(12),
	GR3D_TEX_TEX_ADDR(13),
	GR3D_TEX_TEX_ADDR(14),
	GR3D_TEX_TEX_ADDR(15),
	GR3D_DW_MEMORY_OUTPUT_ADDRESS,
	GR3D_GLOBAL_SURFADDR( 0),
	GR3D_GLOBAL_SURFADDR( 1),
	GR3D_GLOBAL_SURFADDR( 2),
	GR3D_GLOBAL_SURFADDR( 3),
	GR3D_GLOBAL_SURFADDR( 4),
	GR3D_GLOBAL_SURFADDR( 5),
	GR3D_GLOBAL_SURFADDR( 6),
	GR3D_GLOBAL_SURFADDR( 7),
	GR3D_GLOBAL_SURFADDR( 8),
	GR3D_GLOBAL_SURFADDR( 9),
	GR3D_GLOBAL_SURFADDR(10),
	GR3D_GLOBAL_SURFADDR(11),
	GR3D_GLOBAL_SURFADDR(12),
	GR3D_GLOBAL_SURFADDR(13),
	GR3D_GLOBAL_SURFADDR(14),
	GR3D_GLOBAL_SURFADDR(15),
	GR3D_GLOBAL_SPILLSURFADDR,
	GR3D_GLOBAL_SURFOVERADDR( 0),
	GR3D_GLOBAL_SURFOVERADDR( 1),
	GR3D_GLOBAL_SURFOVERADDR( 2),
	GR3D_GLOBAL_SURFOVERADDR( 3),
	GR3D_GLOBAL_SURFOVERADDR( 4),
	GR3D_GLOBAL_SURFOVERADDR( 5),
	GR3D_GLOBAL_SURFOVERADDR( 6),
	GR3D_GLOBAL_SURFOVERADDR( 7),
	GR3D_GLOBAL_SURFOVERADDR( 8),
	GR3D_GLOBAL_SURFOVERADDR( 9),
	GR3D_GLOBAL_SURFOVERADDR(10),
	GR3D_GLOBAL_SURFOVERADDR(11),
	GR3D_GLOBAL_SURFOVERADDR(12),
	GR3D_GLOBAL_SURFOVERADDR(13),
	GR3D_GLOBAL_SURFOVERADDR(14),
	GR3D_GLOBAL_SURFOVERADDR(15),
	GR3D_GLOBAL_SAMP01SURFADDR( 0),
	GR3D_GLOBAL_SAMP01SURFADDR( 1),
	GR3D_GLOBAL_SAMP01SURFADDR( 2),
	GR3D_GLOBAL_SAMP01SURFADDR( 3),
	GR3D_GLOBAL_SAMP01SURFADDR( 4),
	GR3D_GLOBAL_SAMP01SURFADDR( 5),
	GR3D_GLOBAL_SAMP01SURFADDR( 6),
	GR3D_GLOBAL_SAMP01SURFADDR( 7),
	GR3D_GLOBAL_SAMP01SURFADDR( 8),
	GR3D_GLOBAL_SAMP01SURFADDR( 9),
	GR3D_GLOBAL_SAMP01SURFADDR(10),
	GR3D_GLOBAL_SAMP01SURFADDR(11),
	GR3D_GLOBAL_SAMP01SURFADDR(12),
	GR3D_GLOBAL_SAMP01SURFADDR(13),
	GR3D_GLOBAL_SAMP01SURFADDR(14),
	GR3D_GLOBAL_SAMP01SURFADDR(15),
	GR3D_GLOBAL_SAMP23SURFADDR( 0),
	GR3D_GLOBAL_SAMP23SURFADDR( 1),
	GR3D_GLOBAL_SAMP23SURFADDR( 2),
	GR3D_GLOBAL_SAMP23SURFADDR( 3),
	GR3D_GLOBAL_SAMP23SURFADDR( 4),
	GR3D_GLOBAL_SAMP23SURFADDR( 5),
	GR3D_GLOBAL_SAMP23SURFADDR( 6),
	GR3D_GLOBAL_SAMP23SURFADDR( 7),
	GR3D_GLOBAL_SAMP23SURFADDR( 8),
	GR3D_GLOBAL_SAMP23SURFADDR( 9),
	GR3D_GLOBAL_SAMP23SURFADDR(10),
	GR3D_GLOBAL_SAMP23SURFADDR(11),
	GR3D_GLOBAL_SAMP23SURFADDR(12),
	GR3D_GLOBAL_SAMP23SURFADDR(13),
	GR3D_GLOBAL_SAMP23SURFADDR(14),
	GR3D_GLOBAL_SAMP23SURFADDR(15),
};

static int gr3d_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct host1x_syncpt **syncpts;
	struct gr3d *gr3d;
	unsigned int i;
	int err;

	gr3d = devm_kzalloc(&pdev->dev, sizeof(*gr3d), GFP_KERNEL);
	if (!gr3d)
		return -ENOMEM;

	syncpts = devm_kzalloc(&pdev->dev, sizeof(*syncpts), GFP_KERNEL);
	if (!syncpts)
		return -ENOMEM;

	gr3d->clk = devm_clk_get(&pdev->dev, NULL);
	if (IS_ERR(gr3d->clk)) {
		dev_err(&pdev->dev, "cannot get clock\n");
		return PTR_ERR(gr3d->clk);
	}

	gr3d->rst = devm_reset_control_get(&pdev->dev, "3d");
	if (IS_ERR(gr3d->rst)) {
		dev_err(&pdev->dev, "cannot get reset\n");
		return PTR_ERR(gr3d->rst);
	}

	if (of_device_is_compatible(np, "nvidia,tegra30-gr3d")) {
		gr3d->clk_secondary = devm_clk_get(&pdev->dev, "3d2");
		if (IS_ERR(gr3d->clk)) {
			dev_err(&pdev->dev, "cannot get secondary clock\n");
			return PTR_ERR(gr3d->clk);
		}

		gr3d->rst_secondary = devm_reset_control_get(&pdev->dev,
								"3d2");
		if (IS_ERR(gr3d->rst_secondary)) {
			dev_err(&pdev->dev, "cannot get secondary reset\n");
			return PTR_ERR(gr3d->rst_secondary);
		}
	}

	err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D, gr3d->clk,
						gr3d->rst);
	if (err < 0) {
		dev_err(&pdev->dev, "failed to power up 3D unit\n");
		return err;
	}

	if (gr3d->clk_secondary) {
		err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D1,
							gr3d->clk_secondary,
							gr3d->rst_secondary);
		if (err < 0) {
			dev_err(&pdev->dev,
				"failed to power up secondary 3D unit\n");
			return err;
		}
	}

	INIT_LIST_HEAD(&gr3d->client.base.list);
	gr3d->client.base.ops = &gr3d_client_ops;
	gr3d->client.base.dev = &pdev->dev;
	gr3d->client.base.class = HOST1X_CLASS_GR3D;
	gr3d->client.base.syncpts = syncpts;
	gr3d->client.base.num_syncpts = 1;

	INIT_LIST_HEAD(&gr3d->client.list);
	gr3d->client.ops = &gr3d_ops;

	err = host1x_client_register(&gr3d->client.base);
	if (err < 0) {
		dev_err(&pdev->dev, "failed to register host1x client: %d\n",
			err);
		return err;
	}

	/* initialize address register map */
	for (i = 0; i < ARRAY_SIZE(gr3d_addr_regs); i++)
		set_bit(gr3d_addr_regs[i], gr3d->addr_regs);

	platform_set_drvdata(pdev, gr3d);

	return 0;
}

static int gr3d_remove(struct platform_device *pdev)
{
	struct gr3d *gr3d = platform_get_drvdata(pdev);
	int err;

	err = host1x_client_unregister(&gr3d->client.base);
	if (err < 0) {
		dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
			err);
		return err;
	}

	if (gr3d->clk_secondary) {
		tegra_powergate_power_off(TEGRA_POWERGATE_3D1);
		clk_disable_unprepare(gr3d->clk_secondary);
	}

	tegra_powergate_power_off(TEGRA_POWERGATE_3D);
	clk_disable_unprepare(gr3d->clk);

	return 0;
}

struct platform_driver tegra_gr3d_driver = {
	.driver = {
		.name = "tegra-gr3d",
		.of_match_table = tegra_gr3d_match,
	},
	.probe = gr3d_probe,
	.remove = gr3d_remove,
};
Commit	Line	Data
5f60ed0d TR	1	/*
	2	* Copyright (C) 2013 Avionic Design GmbH
	3	* Copyright (C) 2013 NVIDIA Corporation
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*/
	9
	10	#include <linux/clk.h>
	11	#include <linux/host1x.h>
	12	#include <linux/module.h>
	13	#include <linux/platform_device.h>
ca48080a	14	#include <linux/reset.h>
5f60ed0d TR	15	#include <linux/tegra-powergate.h>
	16
	17	#include "drm.h"
	18	#include "gem.h"
	19	#include "gr3d.h"
	20
	21	struct gr3d {
	22	struct tegra_drm_client client;
	23	struct host1x_channel *channel;
	24	struct clk *clk_secondary;
	25	struct clk *clk;
ca48080a SW	26	struct reset_control *rst_secondary;
ca48080a SW	27	struct reset_control *rst;
5f60ed0d TR	28
	29	DECLARE_BITMAP(addr_regs, GR3D_NUM_REGS);
	30	};
	31
	32	static inline struct gr3d to_gr3d(struct tegra_drm_client client)
	33	{
	34	return container_of(client, struct gr3d, client);
	35	}
	36
	37	static int gr3d_init(struct host1x_client *client)
	38	{
	39	struct tegra_drm_client *drm = host1x_to_drm_client(client);
9910f5c4	40	struct drm_device *dev = dev_get_drvdata(client->parent);
977386a0	41	unsigned long flags = HOST1X_SYNCPT_HAS_BASE;
5f60ed0d TR	42	struct gr3d *gr3d = to_gr3d(drm);
	43
	44	gr3d->channel = host1x_channel_request(client->dev);
	45	if (!gr3d->channel)
	46	return -ENOMEM;
	47
977386a0	48	client->syncpts[0] = host1x_syncpt_request(client->dev, flags);
5f60ed0d TR	49	if (!client->syncpts[0]) {
	50	host1x_channel_free(gr3d->channel);
	51	return -ENOMEM;
	52	}
	53
9910f5c4	54	return tegra_drm_register_client(dev->dev_private, drm);
5f60ed0d TR	55	}
	56
	57	static int gr3d_exit(struct host1x_client *client)
	58	{
	59	struct tegra_drm_client *drm = host1x_to_drm_client(client);
9910f5c4	60	struct drm_device *dev = dev_get_drvdata(client->parent);
5f60ed0d TR	61	struct gr3d *gr3d = to_gr3d(drm);
	62	int err;
	63
9910f5c4	64	err = tegra_drm_unregister_client(dev->dev_private, drm);
5f60ed0d TR	65	if (err < 0)
	66	return err;
	67
	68	host1x_syncpt_free(client->syncpts[0]);
	69	host1x_channel_free(gr3d->channel);
	70
	71	return 0;
	72	}
	73
	74	static const struct host1x_client_ops gr3d_client_ops = {
	75	.init = gr3d_init,
	76	.exit = gr3d_exit,
	77	};
	78
	79	static int gr3d_open_channel(struct tegra_drm_client *client,
	80	struct tegra_drm_context *context)
	81	{
	82	struct gr3d *gr3d = to_gr3d(client);
	83
	84	context->channel = host1x_channel_get(gr3d->channel);
	85	if (!context->channel)
	86	return -ENOMEM;
	87
	88	return 0;
	89	}
	90
	91	static void gr3d_close_channel(struct tegra_drm_context *context)
	92	{
	93	host1x_channel_put(context->channel);
	94	}
	95
	96	static int gr3d_is_addr_reg(struct device *dev, u32 class, u32 offset)
	97	{
	98	struct gr3d *gr3d = dev_get_drvdata(dev);
	99
	100	switch (class) {
	101	case HOST1X_CLASS_HOST1X:
	102	if (offset == 0x2b)
	103	return 1;
	104
	105	break;
	106
	107	case HOST1X_CLASS_GR3D:
	108	if (offset >= GR3D_NUM_REGS)
	109	break;
	110
	111	if (test_bit(offset, gr3d->addr_regs))
	112	return 1;
	113
	114	break;
	115	}
	116
	117	return 0;
	118	}
	119
	120	static const struct tegra_drm_client_ops gr3d_ops = {
	121	.open_channel = gr3d_open_channel,
	122	.close_channel = gr3d_close_channel,
	123	.is_addr_reg = gr3d_is_addr_reg,
	124	.submit = tegra_drm_submit,
	125	};
	126
	127	static const struct of_device_id tegra_gr3d_match[] = {
	128	{ .compatible = "nvidia,tegra114-gr3d" },
129	{ .compatible = "nvidia,tegra30-gr3d" },
130	{ .compatible = "nvidia,tegra20-gr3d" },
131	{ }
132	};
133
134	static const u32 gr3d_addr_regs[] = {
135	GR3D_IDX_ATTRIBUTE( 0),
136	GR3D_IDX_ATTRIBUTE( 1),
137	GR3D_IDX_ATTRIBUTE( 2),
138	GR3D_IDX_ATTRIBUTE( 3),
139	GR3D_IDX_ATTRIBUTE( 4),
140	GR3D_IDX_ATTRIBUTE( 5),
141	GR3D_IDX_ATTRIBUTE( 6),
142	GR3D_IDX_ATTRIBUTE( 7),
143	GR3D_IDX_ATTRIBUTE( 8),
144	GR3D_IDX_ATTRIBUTE( 9),
145	GR3D_IDX_ATTRIBUTE(10),
146	GR3D_IDX_ATTRIBUTE(11),
147	GR3D_IDX_ATTRIBUTE(12),
148	GR3D_IDX_ATTRIBUTE(13),
149	GR3D_IDX_ATTRIBUTE(14),
150	GR3D_IDX_ATTRIBUTE(15),
151	GR3D_IDX_INDEX_BASE,
152	GR3D_QR_ZTAG_ADDR,
153	GR3D_QR_CTAG_ADDR,
154	GR3D_QR_CZ_ADDR,
155	GR3D_TEX_TEX_ADDR( 0),
156	GR3D_TEX_TEX_ADDR( 1),
157	GR3D_TEX_TEX_ADDR( 2),
158	GR3D_TEX_TEX_ADDR( 3),
159	GR3D_TEX_TEX_ADDR( 4),
160	GR3D_TEX_TEX_ADDR( 5),
161	GR3D_TEX_TEX_ADDR( 6),
162	GR3D_TEX_TEX_ADDR( 7),
163	GR3D_TEX_TEX_ADDR( 8),
164	GR3D_TEX_TEX_ADDR( 9),
165	GR3D_TEX_TEX_ADDR(10),
166	GR3D_TEX_TEX_ADDR(11),
167	GR3D_TEX_TEX_ADDR(12),
168	GR3D_TEX_TEX_ADDR(13),
169	GR3D_TEX_TEX_ADDR(14),
170	GR3D_TEX_TEX_ADDR(15),
171	GR3D_DW_MEMORY_OUTPUT_ADDRESS,
172	GR3D_GLOBAL_SURFADDR( 0),
173	GR3D_GLOBAL_SURFADDR( 1),
174	GR3D_GLOBAL_SURFADDR( 2),
175	GR3D_GLOBAL_SURFADDR( 3),
176	GR3D_GLOBAL_SURFADDR( 4),
177	GR3D_GLOBAL_SURFADDR( 5),
178	GR3D_GLOBAL_SURFADDR( 6),
179	GR3D_GLOBAL_SURFADDR( 7),
180	GR3D_GLOBAL_SURFADDR( 8),
181	GR3D_GLOBAL_SURFADDR( 9),
182	GR3D_GLOBAL_SURFADDR(10),
183	GR3D_GLOBAL_SURFADDR(11),
184	GR3D_GLOBAL_SURFADDR(12),
185	GR3D_GLOBAL_SURFADDR(13),
186	GR3D_GLOBAL_SURFADDR(14),
187	GR3D_GLOBAL_SURFADDR(15),
188	GR3D_GLOBAL_SPILLSURFADDR,
189	GR3D_GLOBAL_SURFOVERADDR( 0),
190	GR3D_GLOBAL_SURFOVERADDR( 1),
191	GR3D_GLOBAL_SURFOVERADDR( 2),
192	GR3D_GLOBAL_SURFOVERADDR( 3),
193	GR3D_GLOBAL_SURFOVERADDR( 4),
194	GR3D_GLOBAL_SURFOVERADDR( 5),
195	GR3D_GLOBAL_SURFOVERADDR( 6),
196	GR3D_GLOBAL_SURFOVERADDR( 7),
197	GR3D_GLOBAL_SURFOVERADDR( 8),
198	GR3D_GLOBAL_SURFOVERADDR( 9),
199	GR3D_GLOBAL_SURFOVERADDR(10),
200	GR3D_GLOBAL_SURFOVERADDR(11),
201	GR3D_GLOBAL_SURFOVERADDR(12),
202	GR3D_GLOBAL_SURFOVERADDR(13),
203	GR3D_GLOBAL_SURFOVERADDR(14),
204	GR3D_GLOBAL_SURFOVERADDR(15),
205	GR3D_GLOBAL_SAMP01SURFADDR( 0),
206	GR3D_GLOBAL_SAMP01SURFADDR( 1),
207	GR3D_GLOBAL_SAMP01SURFADDR( 2),
208	GR3D_GLOBAL_SAMP01SURFADDR( 3),
209	GR3D_GLOBAL_SAMP01SURFADDR( 4),
210	GR3D_GLOBAL_SAMP01SURFADDR( 5),
211	GR3D_GLOBAL_SAMP01SURFADDR( 6),
212	GR3D_GLOBAL_SAMP01SURFADDR( 7),
213	GR3D_GLOBAL_SAMP01SURFADDR( 8),
214	GR3D_GLOBAL_SAMP01SURFADDR( 9),
215	GR3D_GLOBAL_SAMP01SURFADDR(10),
216	GR3D_GLOBAL_SAMP01SURFADDR(11),
217	GR3D_GLOBAL_SAMP01SURFADDR(12),
218	GR3D_GLOBAL_SAMP01SURFADDR(13),
219	GR3D_GLOBAL_SAMP01SURFADDR(14),
220	GR3D_GLOBAL_SAMP01SURFADDR(15),
221	GR3D_GLOBAL_SAMP23SURFADDR( 0),
222	GR3D_GLOBAL_SAMP23SURFADDR( 1),
223	GR3D_GLOBAL_SAMP23SURFADDR( 2),
224	GR3D_GLOBAL_SAMP23SURFADDR( 3),
225	GR3D_GLOBAL_SAMP23SURFADDR( 4),
226	GR3D_GLOBAL_SAMP23SURFADDR( 5),
227	GR3D_GLOBAL_SAMP23SURFADDR( 6),
228	GR3D_GLOBAL_SAMP23SURFADDR( 7),
229	GR3D_GLOBAL_SAMP23SURFADDR( 8),
230	GR3D_GLOBAL_SAMP23SURFADDR( 9),
231	GR3D_GLOBAL_SAMP23SURFADDR(10),
232	GR3D_GLOBAL_SAMP23SURFADDR(11),
233	GR3D_GLOBAL_SAMP23SURFADDR(12),
234	GR3D_GLOBAL_SAMP23SURFADDR(13),
235	GR3D_GLOBAL_SAMP23SURFADDR(14),
236	GR3D_GLOBAL_SAMP23SURFADDR(15),
237	};
238
239	static int gr3d_probe(struct platform_device *pdev)
240	{
241	struct device_node *np = pdev->dev.of_node;
242	struct host1x_syncpt **syncpts;
243	struct gr3d *gr3d;
244	unsigned int i;
245	int err;
246
247	gr3d = devm_kzalloc(&pdev->dev, sizeof(*gr3d), GFP_KERNEL);
248	if (!gr3d)
249	return -ENOMEM;
250
251	syncpts = devm_kzalloc(&pdev->dev, sizeof(*syncpts), GFP_KERNEL);
252	if (!syncpts)
253	return -ENOMEM;
254
255	gr3d->clk = devm_clk_get(&pdev->dev, NULL);
256	if (IS_ERR(gr3d->clk)) {
257	dev_err(&pdev->dev, "cannot get clock\n");
258	return PTR_ERR(gr3d->clk);
259	}
260
ca48080a SW	261	gr3d->rst = devm_reset_control_get(&pdev->dev, "3d");
	262	if (IS_ERR(gr3d->rst)) {
	263	dev_err(&pdev->dev, "cannot get reset\n");
	264	return PTR_ERR(gr3d->rst);
	265	}
	266
5f60ed0d TR	267	if (of_device_is_compatible(np, "nvidia,tegra30-gr3d")) {
	268	gr3d->clk_secondary = devm_clk_get(&pdev->dev, "3d2");
	269	if (IS_ERR(gr3d->clk)) {
	270	dev_err(&pdev->dev, "cannot get secondary clock\n");
	271	return PTR_ERR(gr3d->clk);
	272	}
ca48080a SW	273
	274	gr3d->rst_secondary = devm_reset_control_get(&pdev->dev,
	275	"3d2");
	276	if (IS_ERR(gr3d->rst_secondary)) {
	277	dev_err(&pdev->dev, "cannot get secondary reset\n");
	278	return PTR_ERR(gr3d->rst_secondary);
	279	}
5f60ed0d TR	280	}
5f60ed0d TR	281
80b28791 SW	282	err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D, gr3d->clk,
80b28791 SW	283	gr3d->rst);
5f60ed0d TR	284	if (err < 0) {
	285	dev_err(&pdev->dev, "failed to power up 3D unit\n");
	286	return err;
	287	}
	288
	289	if (gr3d->clk_secondary) {
	290	err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D1,
80b28791 SW	291	gr3d->clk_secondary,
80b28791 SW	292	gr3d->rst_secondary);
5f60ed0d TR	293	if (err < 0) {
	294	dev_err(&pdev->dev,
	295	"failed to power up secondary 3D unit\n");
	296	return err;
	297	}
	298	}
	299
	300	INIT_LIST_HEAD(&gr3d->client.base.list);
	301	gr3d->client.base.ops = &gr3d_client_ops;
	302	gr3d->client.base.dev = &pdev->dev;
	303	gr3d->client.base.class = HOST1X_CLASS_GR3D;
	304	gr3d->client.base.syncpts = syncpts;
	305	gr3d->client.base.num_syncpts = 1;
	306
	307	INIT_LIST_HEAD(&gr3d->client.list);
	308	gr3d->client.ops = &gr3d_ops;
	309
	310	err = host1x_client_register(&gr3d->client.base);
	311	if (err < 0) {
	312	dev_err(&pdev->dev, "failed to register host1x client: %d\n",
	313	err);
	314	return err;
	315	}
	316
	317	/* initialize address register map */
	318	for (i = 0; i < ARRAY_SIZE(gr3d_addr_regs); i++)
	319	set_bit(gr3d_addr_regs[i], gr3d->addr_regs);
	320
	321	platform_set_drvdata(pdev, gr3d);
	322
	323	return 0;
	324	}
	325
	326	static int gr3d_remove(struct platform_device *pdev)
	327	{
	328	struct gr3d *gr3d = platform_get_drvdata(pdev);
	329	int err;
	330
	331	err = host1x_client_unregister(&gr3d->client.base);
	332	if (err < 0) {
	333	dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
	334	err);
	335	return err;
	336	}
	337
	338	if (gr3d->clk_secondary) {
	339	tegra_powergate_power_off(TEGRA_POWERGATE_3D1);
	340	clk_disable_unprepare(gr3d->clk_secondary);
	341	}
	342
	343	tegra_powergate_power_off(TEGRA_POWERGATE_3D);
	344	clk_disable_unprepare(gr3d->clk);
	345
	346	return 0;
	347	}
	348
	349	struct platform_driver tegra_gr3d_driver = {
	350	.driver = {
	351	.name = "tegra-gr3d",
	352	.of_match_table = tegra_gr3d_match,
	353	},
	354	.probe = gr3d_probe,
	355	.remove = gr3d_remove,
	356	};