* published by the Free Software Foundation.
*/
-#include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
+#include <linux/host1x.h>
-#include <linux/dma-mapping.h>
-#include <asm/dma-iommu.h>
-
-#include <drm/drm.h>
-#include <drm/drmP.h>
-
-#include "host1x_client.h"
-#include "dev.h"
#include "drm.h"
#include "gem.h"
-#include "syncpt.h"
#define DRIVER_NAME "tegra"
#define DRIVER_DESC "NVIDIA Tegra graphics"
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
-struct host1x_drm_client {
- struct host1x_client *client;
- struct device_node *np;
- struct list_head list;
+struct tegra_drm_file {
+ struct list_head contexts;
};
-static int host1x_add_drm_client(struct host1x_drm *host1x,
- struct device_node *np)
-{
- struct host1x_drm_client *client;
-
- client = kzalloc(sizeof(*client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&client->list);
- client->np = of_node_get(np);
-
- list_add_tail(&client->list, &host1x->drm_clients);
-
- return 0;
-}
-
-static int host1x_activate_drm_client(struct host1x_drm *host1x,
- struct host1x_drm_client *drm,
- struct host1x_client *client)
-{
- mutex_lock(&host1x->drm_clients_lock);
- list_del_init(&drm->list);
- list_add_tail(&drm->list, &host1x->drm_active);
- drm->client = client;
- mutex_unlock(&host1x->drm_clients_lock);
-
- return 0;
-}
-
-static int host1x_remove_drm_client(struct host1x_drm *host1x,
- struct host1x_drm_client *client)
-{
- mutex_lock(&host1x->drm_clients_lock);
- list_del_init(&client->list);
- mutex_unlock(&host1x->drm_clients_lock);
-
- of_node_put(client->np);
- kfree(client);
-
- return 0;
-}
-
-static int host1x_parse_dt(struct host1x_drm *host1x)
-{
- static const char * const compat[] = {
- "nvidia,tegra20-dc",
- "nvidia,tegra20-hdmi",
- "nvidia,tegra20-gr2d",
- "nvidia,tegra30-dc",
- "nvidia,tegra30-hdmi",
- "nvidia,tegra30-gr2d",
- };
- unsigned int i;
- int err;
-
- for (i = 0; i < ARRAY_SIZE(compat); i++) {
- struct device_node *np;
-
- for_each_child_of_node(host1x->dev->of_node, np) {
- if (of_device_is_compatible(np, compat[i]) &&
- of_device_is_available(np)) {
- err = host1x_add_drm_client(host1x, np);
- if (err < 0)
- return err;
- }
- }
- }
-
- return 0;
-}
-
-int host1x_drm_alloc(struct platform_device *pdev)
+static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
{
- struct host1x_drm *host1x;
+ struct host1x_device *device = to_host1x_device(drm->dev);
+ struct tegra_drm *tegra;
int err;
- host1x = devm_kzalloc(&pdev->dev, sizeof(*host1x), GFP_KERNEL);
- if (!host1x)
+ tegra = kzalloc(sizeof(*tegra), GFP_KERNEL);
+ if (!tegra)
return -ENOMEM;
- mutex_init(&host1x->drm_clients_lock);
- INIT_LIST_HEAD(&host1x->drm_clients);
- INIT_LIST_HEAD(&host1x->drm_active);
- mutex_init(&host1x->clients_lock);
- INIT_LIST_HEAD(&host1x->clients);
- host1x->dev = &pdev->dev;
-
- err = host1x_parse_dt(host1x);
- if (err < 0) {
- dev_err(&pdev->dev, "failed to parse DT: %d\n", err);
- return err;
- }
-
- host1x_set_drm_data(&pdev->dev, host1x);
-
- return 0;
-}
-
-int host1x_drm_init(struct host1x_drm *host1x, struct drm_device *drm)
-{
- struct host1x_client *client;
-
- mutex_lock(&host1x->clients_lock);
-
- list_for_each_entry(client, &host1x->clients, list) {
- if (client->ops && client->ops->drm_init) {
- int err = client->ops->drm_init(client, drm);
- if (err < 0) {
- dev_err(host1x->dev,
- "DRM setup failed for %s: %d\n",
- dev_name(client->dev), err);
- mutex_unlock(&host1x->clients_lock);
- return err;
- }
- }
- }
-
- mutex_unlock(&host1x->clients_lock);
-
- return 0;
-}
-
-int host1x_drm_exit(struct host1x_drm *host1x)
-{
- struct platform_device *pdev = to_platform_device(host1x->dev);
- struct host1x_client *client;
-
- if (!host1x->drm)
- return 0;
-
- mutex_lock(&host1x->clients_lock);
-
- list_for_each_entry_reverse(client, &host1x->clients, list) {
- if (client->ops && client->ops->drm_exit) {
- int err = client->ops->drm_exit(client);
- if (err < 0) {
- dev_err(host1x->dev,
- "DRM cleanup failed for %s: %d\n",
- dev_name(client->dev), err);
- mutex_unlock(&host1x->clients_lock);
- return err;
- }
- }
- }
-
- mutex_unlock(&host1x->clients_lock);
-
- drm_platform_exit(&tegra_drm_driver, pdev);
- host1x->drm = NULL;
-
- return 0;
-}
-
-int host1x_register_client(struct host1x_drm *host1x,
- struct host1x_client *client)
-{
- struct host1x_drm_client *drm, *tmp;
- int err;
-
- mutex_lock(&host1x->clients_lock);
- list_add_tail(&client->list, &host1x->clients);
- mutex_unlock(&host1x->clients_lock);
-
- list_for_each_entry_safe(drm, tmp, &host1x->drm_clients, list)
- if (drm->np == client->dev->of_node)
- host1x_activate_drm_client(host1x, drm, client);
-
- if (list_empty(&host1x->drm_clients)) {
- struct platform_device *pdev = to_platform_device(host1x->dev);
-
- err = drm_platform_init(&tegra_drm_driver, pdev);
- if (err < 0) {
- dev_err(host1x->dev, "drm_platform_init(): %d\n", err);
- return err;
- }
- }
-
- return 0;
-}
-
-int host1x_unregister_client(struct host1x_drm *host1x,
- struct host1x_client *client)
-{
- struct host1x_drm_client *drm, *tmp;
- int err;
-
- list_for_each_entry_safe(drm, tmp, &host1x->drm_active, list) {
- if (drm->client == client) {
- err = host1x_drm_exit(host1x);
- if (err < 0) {
- dev_err(host1x->dev, "host1x_drm_exit(): %d\n",
- err);
- return err;
- }
-
- host1x_remove_drm_client(host1x, drm);
- break;
- }
- }
-
- mutex_lock(&host1x->clients_lock);
- list_del_init(&client->list);
- mutex_unlock(&host1x->clients_lock);
-
- return 0;
-}
-
-static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
-{
- struct host1x_drm *host1x;
- int err;
-
- host1x = host1x_get_drm_data(drm->dev);
- drm->dev_private = host1x;
- host1x->drm = drm;
+ dev_set_drvdata(drm->dev, tegra);
+ mutex_init(&tegra->clients_lock);
+ INIT_LIST_HEAD(&tegra->clients);
+ drm->dev_private = tegra;
+ tegra->drm = drm;
drm_mode_config_init(drm);
- err = host1x_drm_init(host1x, drm);
+ err = host1x_device_init(device);
if (err < 0)
return err;
* core, so we need to set this manually in order to allow the
* DRM_IOCTL_WAIT_VBLANK to operate correctly.
*/
- drm->irq_enabled = 1;
+ drm->irq_enabled = true;
err = drm_vblank_init(drm, drm->mode_config.num_crtc);
if (err < 0)
static int tegra_drm_unload(struct drm_device *drm)
{
+ struct host1x_device *device = to_host1x_device(drm->dev);
+ int err;
+
drm_kms_helper_poll_fini(drm);
tegra_drm_fb_exit(drm);
+ err = host1x_device_exit(device);
+ if (err < 0)
+ return err;
+
drm_mode_config_cleanup(drm);
return 0;
static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
{
- struct host1x_drm_file *fpriv;
+ struct tegra_drm_file *fpriv;
fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
if (!fpriv)
return 0;
}
-static void host1x_drm_context_free(struct host1x_drm_context *context)
+static void tegra_drm_context_free(struct tegra_drm_context *context)
{
context->client->ops->close_channel(context);
kfree(context);
static void tegra_drm_lastclose(struct drm_device *drm)
{
- struct host1x_drm *host1x = drm->dev_private;
+ struct tegra_drm *tegra = drm->dev_private;
- tegra_fbdev_restore_mode(host1x->fbdev);
+ tegra_fbdev_restore_mode(tegra->fbdev);
}
#ifdef CONFIG_DRM_TEGRA_STAGING
-static bool host1x_drm_file_owns_context(struct host1x_drm_file *file,
- struct host1x_drm_context *context)
+static struct tegra_drm_context *tegra_drm_get_context(__u64 context)
{
- struct host1x_drm_context *ctx;
+ return (struct tegra_drm_context *)(uintptr_t)context;
+}
+
+static bool tegra_drm_file_owns_context(struct tegra_drm_file *file,
+ struct tegra_drm_context *context)
+{
+ struct tegra_drm_context *ctx;
list_for_each_entry(ctx, &file->contexts, list)
if (ctx == context)
static int tegra_syncpt_read(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct host1x *host = dev_get_drvdata(drm->dev->parent);
struct drm_tegra_syncpt_read *args = data;
- struct host1x *host = dev_get_drvdata(drm->dev);
- struct host1x_syncpt *sp = host1x_syncpt_get(host, args->id);
+ struct host1x_syncpt *sp;
+ sp = host1x_syncpt_get(host, args->id);
if (!sp)
return -EINVAL;
static int tegra_syncpt_incr(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct host1x *host1x = dev_get_drvdata(drm->dev->parent);
struct drm_tegra_syncpt_incr *args = data;
- struct host1x *host = dev_get_drvdata(drm->dev);
- struct host1x_syncpt *sp = host1x_syncpt_get(host, args->id);
+ struct host1x_syncpt *sp;
+ sp = host1x_syncpt_get(host1x, args->id);
if (!sp)
return -EINVAL;
static int tegra_syncpt_wait(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct host1x *host1x = dev_get_drvdata(drm->dev->parent);
struct drm_tegra_syncpt_wait *args = data;
- struct host1x *host = dev_get_drvdata(drm->dev);
- struct host1x_syncpt *sp = host1x_syncpt_get(host, args->id);
+ struct host1x_syncpt *sp;
+ sp = host1x_syncpt_get(host1x, args->id);
if (!sp)
return -EINVAL;
static int tegra_open_channel(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct tegra_drm_file *fpriv = file->driver_priv;
+ struct tegra_drm *tegra = drm->dev_private;
struct drm_tegra_open_channel *args = data;
- struct host1x_client *client;
- struct host1x_drm_context *context;
- struct host1x_drm_file *fpriv = file->driver_priv;
- struct host1x_drm *host1x = drm->dev_private;
+ struct tegra_drm_context *context;
+ struct tegra_drm_client *client;
int err = -ENODEV;
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return -ENOMEM;
- list_for_each_entry(client, &host1x->clients, list)
- if (client->class == args->client) {
+ list_for_each_entry(client, &tegra->clients, list)
+ if (client->base.class == args->client) {
err = client->ops->open_channel(client, context);
if (err)
break;
- context->client = client;
list_add(&context->list, &fpriv->contexts);
args->context = (uintptr_t)context;
+ context->client = client;
return 0;
}
static int tegra_close_channel(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct tegra_drm_file *fpriv = file->driver_priv;
struct drm_tegra_close_channel *args = data;
- struct host1x_drm_file *fpriv = file->driver_priv;
- struct host1x_drm_context *context =
- (struct host1x_drm_context *)(uintptr_t)args->context;
+ struct tegra_drm_context *context;
+
+ context = tegra_drm_get_context(args->context);
- if (!host1x_drm_file_owns_context(fpriv, context))
+ if (!tegra_drm_file_owns_context(fpriv, context))
return -EINVAL;
list_del(&context->list);
- host1x_drm_context_free(context);
+ tegra_drm_context_free(context);
return 0;
}
static int tegra_get_syncpt(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct tegra_drm_file *fpriv = file->driver_priv;
struct drm_tegra_get_syncpt *args = data;
- struct host1x_drm_file *fpriv = file->driver_priv;
- struct host1x_drm_context *context =
- (struct host1x_drm_context *)(uintptr_t)args->context;
+ struct tegra_drm_context *context;
struct host1x_syncpt *syncpt;
- if (!host1x_drm_file_owns_context(fpriv, context))
+ context = tegra_drm_get_context(args->context);
+
+ if (!tegra_drm_file_owns_context(fpriv, context))
return -ENODEV;
- if (args->index >= context->client->num_syncpts)
+ if (args->index >= context->client->base.num_syncpts)
return -EINVAL;
- syncpt = context->client->syncpts[args->index];
+ syncpt = context->client->base.syncpts[args->index];
args->id = host1x_syncpt_id(syncpt);
return 0;
static int tegra_submit(struct drm_device *drm, void *data,
struct drm_file *file)
{
+ struct tegra_drm_file *fpriv = file->driver_priv;
struct drm_tegra_submit *args = data;
- struct host1x_drm_file *fpriv = file->driver_priv;
- struct host1x_drm_context *context =
- (struct host1x_drm_context *)(uintptr_t)args->context;
+ struct tegra_drm_context *context;
+
+ context = tegra_drm_get_context(args->context);
- if (!host1x_drm_file_owns_context(fpriv, context))
+ if (!tegra_drm_file_owns_context(fpriv, context))
return -ENODEV;
return context->client->ops->submit(context, args, drm, file);
static void tegra_drm_preclose(struct drm_device *drm, struct drm_file *file)
{
- struct host1x_drm_file *fpriv = file->driver_priv;
- struct host1x_drm_context *context, *tmp;
+ struct tegra_drm_file *fpriv = file->driver_priv;
+ struct tegra_drm_context *context, *tmp;
struct drm_crtc *crtc;
list_for_each_entry(crtc, &drm->mode_config.crtc_list, head)
tegra_dc_cancel_page_flip(crtc, file);
list_for_each_entry_safe(context, tmp, &fpriv->contexts, list)
- host1x_drm_context_free(context);
+ tegra_drm_context_free(context);
kfree(fpriv);
}
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
};
+
+int tegra_drm_register_client(struct tegra_drm *tegra,
+ struct tegra_drm_client *client)
+{
+ mutex_lock(&tegra->clients_lock);
+ list_add_tail(&client->list, &tegra->clients);
+ mutex_unlock(&tegra->clients_lock);
+
+ return 0;
+}
+
+int tegra_drm_unregister_client(struct tegra_drm *tegra,
+ struct tegra_drm_client *client)
+{
+ mutex_lock(&tegra->clients_lock);
+ list_del_init(&client->list);
+ mutex_unlock(&tegra->clients_lock);
+
+ return 0;
+}
+
+static int host1x_drm_probe(struct host1x_device *device)
+{
+ return drm_host1x_init(&tegra_drm_driver, device);
+}
+
+static int host1x_drm_remove(struct host1x_device *device)
+{
+ drm_host1x_exit(&tegra_drm_driver, device);
+
+ return 0;
+}
+
+static const struct of_device_id host1x_drm_subdevs[] = {
+ { .compatible = "nvidia,tegra20-dc", },
+ { .compatible = "nvidia,tegra20-hdmi", },
+ { .compatible = "nvidia,tegra20-gr2d", },
+ { .compatible = "nvidia,tegra30-dc", },
+ { .compatible = "nvidia,tegra30-hdmi", },
+ { .compatible = "nvidia,tegra30-gr2d", },
+ { /* sentinel */ }
+};
+
+static struct host1x_driver host1x_drm_driver = {
+ .name = "drm",
+ .probe = host1x_drm_probe,
+ .remove = host1x_drm_remove,
+ .subdevs = host1x_drm_subdevs,
+};
+
+static int __init host1x_drm_init(void)
+{
+ int err;
+
+ err = host1x_driver_register(&host1x_drm_driver);
+ if (err < 0)
+ return err;
+
+ err = platform_driver_register(&tegra_dc_driver);
+ if (err < 0)
+ goto unregister_host1x;
+
+ err = platform_driver_register(&tegra_hdmi_driver);
+ if (err < 0)
+ goto unregister_dc;
+
+ err = platform_driver_register(&tegra_gr2d_driver);
+ if (err < 0)
+ goto unregister_hdmi;
+
+ return 0;
+
+unregister_hdmi:
+ platform_driver_unregister(&tegra_hdmi_driver);
+unregister_dc:
+ platform_driver_unregister(&tegra_dc_driver);
+unregister_host1x:
+ host1x_driver_unregister(&host1x_drm_driver);
+ return err;
+}
+module_init(host1x_drm_init);
+
+static void __exit host1x_drm_exit(void)
+{
+ platform_driver_unregister(&tegra_gr2d_driver);
+ platform_driver_unregister(&tegra_hdmi_driver);
+ platform_driver_unregister(&tegra_dc_driver);
+ host1x_driver_unregister(&host1x_drm_driver);
+}
+module_exit(host1x_drm_exit);
+
+MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
+MODULE_DESCRIPTION("NVIDIA Tegra DRM driver");
+MODULE_LICENSE("GPL v2");
projects / deliverable / linux.git / blobdiff