--- /dev/null
+/*
+ * 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/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;
+
+ 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 tegra_drm *tegra = dev_get_drvdata(client->parent);
+ 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, 0);
+ if (!client->syncpts[0]) {
+ host1x_channel_free(gr3d->channel);
+ return -ENOMEM;
+ }
+
+ return tegra_drm_register_client(tegra, drm);
+}
+
+static int gr3d_exit(struct host1x_client *client)
+{
+ struct tegra_drm_client *drm = host1x_to_drm_client(client);
+ struct tegra_drm *tegra = dev_get_drvdata(client->parent);
+ struct gr3d *gr3d = to_gr3d(drm);
+ int err;
+
+ err = tegra_drm_unregister_client(tegra, 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);
+ }
+
+ 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);
+ }
+ }
+
+ err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D, gr3d->clk);
+ 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);
+ 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,
+};
projects / karo-tx-linux.git / commitdiff