From 386a2a71e2abde2d9fd529f8dc5f743102744100 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 24 Sep 2013 13:22:17 +0200 Subject: drm/tegra: Rename host1x_drm structure to tegra_drm The host1x and Tegra DRM drivers are currently tightly coupled. Renaming the structure marks the boundary more clearly. Signed-off-by: Thierry Reding --- drivers/gpu/host1x/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/host1x/dev.c') diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 47163029987..0f7b44c55ec 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -163,7 +163,7 @@ static int host1x_probe(struct platform_device *pdev) host1x_debug_init(host); - host1x_drm_alloc(pdev); + tegra_drm_alloc(pdev); return 0; -- cgit v1.2.3-70-g09d2 From 452e7f0cdaf229dc9da36e7a3d36d88a4d51fb56 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 25 Sep 2013 18:33:31 +0200 Subject: gpu: host1x: Do not discard .remove() The device can be unbound from the driver via sysfs, so regardless of whether the driver is builtin or a module, its .remove() function needs to stick around. Signed-off-by: Thierry Reding --- drivers/gpu/host1x/dev.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/host1x/dev.c') diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 0f7b44c55ec..105aa4ed665 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -172,7 +172,7 @@ fail_deinit_syncpt: return err; } -static int __exit host1x_remove(struct platform_device *pdev) +static int host1x_remove(struct platform_device *pdev) { struct host1x *host = platform_get_drvdata(pdev); @@ -184,13 +184,12 @@ static int __exit host1x_remove(struct platform_device *pdev) } static struct platform_driver tegra_host1x_driver = { - .probe = host1x_probe, - .remove = __exit_p(host1x_remove), .driver = { - .owner = THIS_MODULE, .name = "tegra-host1x", .of_match_table = host1x_of_match, }, + .probe = host1x_probe, + .remove = host1x_remove, }; static int __init tegra_host1x_init(void) -- cgit v1.2.3-70-g09d2 From 776dc38403676f499a73d32e2e7c61eb5b42f736 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 14 Oct 2013 14:43:22 +0200 Subject: drm/tegra: Move subdevice infrastructure to host1x The Tegra DRM driver currently uses some infrastructure to defer the DRM core initialization until all required devices have registered. The same infrastructure can potentially be used by any other driver that requires more than a single sub-device of the host1x module. Make the infrastructure more generic and keep only the DRM specific code in the DRM part of the driver. Eventually this will make it easy to move the DRM driver part back to the DRM subsystem. Signed-off-by: Thierry Reding --- drivers/gpu/host1x/Makefile | 2 + drivers/gpu/host1x/bus.c | 550 +++++++++++++++++++++++++++++++++++++ drivers/gpu/host1x/bus.h | 29 ++ drivers/gpu/host1x/dev.c | 60 ++-- drivers/gpu/host1x/dev.h | 9 +- drivers/gpu/host1x/drm/bus.c | 76 +++++ drivers/gpu/host1x/drm/dc.c | 30 +- drivers/gpu/host1x/drm/drm.c | 347 ++++++++--------------- drivers/gpu/host1x/drm/drm.h | 31 ++- drivers/gpu/host1x/drm/gr2d.c | 60 ++-- drivers/gpu/host1x/drm/hdmi.c | 28 +- drivers/gpu/host1x/host1x_client.h | 35 --- include/drm/drmP.h | 1 + include/linux/host1x.h | 45 ++- 14 files changed, 918 insertions(+), 385 deletions(-) create mode 100644 drivers/gpu/host1x/bus.c create mode 100644 drivers/gpu/host1x/bus.h create mode 100644 drivers/gpu/host1x/drm/bus.c delete mode 100644 drivers/gpu/host1x/host1x_client.h (limited to 'drivers/gpu/host1x/dev.c') diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile index 3b037b6e029..7b781920c58 100644 --- a/drivers/gpu/host1x/Makefile +++ b/drivers/gpu/host1x/Makefile @@ -1,6 +1,7 @@ ccflags-y = -Idrivers/gpu/host1x host1x-y = \ + bus.o \ syncpt.o \ dev.o \ intr.o \ @@ -17,4 +18,5 @@ host1x-$(CONFIG_DRM_TEGRA) += drm/drm.o drm/fb.o drm/dc.o host1x-$(CONFIG_DRM_TEGRA) += drm/output.o drm/rgb.o drm/hdmi.o host1x-$(CONFIG_DRM_TEGRA) += drm/gem.o host1x-$(CONFIG_DRM_TEGRA) += drm/gr2d.o +host1x-$(CONFIG_DRM_TEGRA) += drm/bus.o obj-$(CONFIG_TEGRA_HOST1X) += host1x.o diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c new file mode 100644 index 00000000000..509383f8be0 --- /dev/null +++ b/drivers/gpu/host1x/bus.c @@ -0,0 +1,550 @@ +/* + * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2012-2013, NVIDIA Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +#include "dev.h" + +static DEFINE_MUTEX(clients_lock); +static LIST_HEAD(clients); + +static DEFINE_MUTEX(drivers_lock); +static LIST_HEAD(drivers); + +static DEFINE_MUTEX(devices_lock); +static LIST_HEAD(devices); + +struct host1x_subdev { + struct host1x_client *client; + struct device_node *np; + struct list_head list; +}; + +/** + * host1x_subdev_add() - add a new subdevice with an associated device node + */ +static int host1x_subdev_add(struct host1x_device *device, + struct device_node *np) +{ + struct host1x_subdev *subdev; + + subdev = kzalloc(sizeof(*subdev), GFP_KERNEL); + if (!subdev) + return -ENOMEM; + + INIT_LIST_HEAD(&subdev->list); + subdev->np = of_node_get(np); + + mutex_lock(&device->subdevs_lock); + list_add_tail(&subdev->list, &device->subdevs); + mutex_unlock(&device->subdevs_lock); + + return 0; +} + +/** + * host1x_subdev_del() - remove subdevice + */ +static void host1x_subdev_del(struct host1x_subdev *subdev) +{ + list_del(&subdev->list); + of_node_put(subdev->np); + kfree(subdev); +} + +/** + * host1x_device_parse_dt() - scan device tree and add matching subdevices + */ +static int host1x_device_parse_dt(struct host1x_device *device) +{ + struct device_node *np; + int err; + + for_each_child_of_node(device->dev.parent->of_node, np) { + if (of_match_node(device->driver->subdevs, np) && + of_device_is_available(np)) { + err = host1x_subdev_add(device, np); + if (err < 0) + return err; + } + } + + return 0; +} + +static void host1x_subdev_register(struct host1x_device *device, + struct host1x_subdev *subdev, + struct host1x_client *client) +{ + int err; + + /* + * Move the subdevice to the list of active (registered) subdevices + * and associate it with a client. At the same time, associate the + * client with its parent device. + */ + mutex_lock(&device->subdevs_lock); + mutex_lock(&device->clients_lock); + list_move_tail(&client->list, &device->clients); + list_move_tail(&subdev->list, &device->active); + client->parent = &device->dev; + subdev->client = client; + mutex_unlock(&device->clients_lock); + mutex_unlock(&device->subdevs_lock); + + /* + * When all subdevices have been registered, the composite device is + * ready to be probed. + */ + if (list_empty(&device->subdevs)) { + err = device->driver->probe(device); + if (err < 0) + dev_err(&device->dev, "probe failed: %d\n", err); + } +} + +static void __host1x_subdev_unregister(struct host1x_device *device, + struct host1x_subdev *subdev) +{ + struct host1x_client *client = subdev->client; + int err; + + /* + * If all subdevices have been activated, we're about to remove the + * first active subdevice, so unload the driver first. + */ + if (list_empty(&device->subdevs)) { + err = device->driver->remove(device); + if (err < 0) + dev_err(&device->dev, "remove failed: %d\n", err); + } + + /* + * Move the subdevice back to the list of idle subdevices and remove + * it from list of clients. + */ + mutex_lock(&device->clients_lock); + subdev->client = NULL; + client->parent = NULL; + list_move_tail(&subdev->list, &device->subdevs); + /* + * XXX: Perhaps don't do this here, but rather explicitly remove it + * when the device is about to be deleted. + * + * This is somewhat complicated by the fact that this function is + * used to remove the subdevice when a client is unregistered but + * also when the composite device is about to be removed. + */ + list_del_init(&client->list); + mutex_unlock(&device->clients_lock); +} + +static void host1x_subdev_unregister(struct host1x_device *device, + struct host1x_subdev *subdev) +{ + mutex_lock(&device->subdevs_lock); + __host1x_subdev_unregister(device, subdev); + mutex_unlock(&device->subdevs_lock); +} + +int host1x_device_init(struct host1x_device *device) +{ + struct host1x_client *client; + int err; + + mutex_lock(&device->clients_lock); + + list_for_each_entry(client, &device->clients, list) { + if (client->ops && client->ops->init) { + err = client->ops->init(client); + if (err < 0) { + dev_err(&device->dev, + "failed to initialize %s: %d\n", + dev_name(client->dev), err); + mutex_unlock(&device->clients_lock); + return err; + } + } + } + + mutex_unlock(&device->clients_lock); + + return 0; +} + +int host1x_device_exit(struct host1x_device *device) +{ + struct host1x_client *client; + int err; + + mutex_lock(&device->clients_lock); + + list_for_each_entry_reverse(client, &device->clients, list) { + if (client->ops && client->ops->exit) { + err = client->ops->exit(client); + if (err < 0) { + dev_err(&device->dev, + "failed to cleanup %s: %d\n", + dev_name(client->dev), err); + mutex_unlock(&device->clients_lock); + return err; + } + } + } + + mutex_unlock(&device->clients_lock); + + return 0; +} + +static int host1x_register_client(struct host1x *host1x, + struct host1x_client *client) +{ + struct host1x_device *device; + struct host1x_subdev *subdev; + + mutex_lock(&host1x->devices_lock); + + list_for_each_entry(device, &host1x->devices, list) { + list_for_each_entry(subdev, &device->subdevs, list) { + if (subdev->np == client->dev->of_node) { + host1x_subdev_register(device, subdev, client); + mutex_unlock(&host1x->devices_lock); + return 0; + } + } + } + + mutex_unlock(&host1x->devices_lock); + return -ENODEV; +} + +static int host1x_unregister_client(struct host1x *host1x, + struct host1x_client *client) +{ + struct host1x_device *device, *dt; + struct host1x_subdev *subdev; + + mutex_lock(&host1x->devices_lock); + + list_for_each_entry_safe(device, dt, &host1x->devices, list) { + list_for_each_entry(subdev, &device->active, list) { + if (subdev->client == client) { + host1x_subdev_unregister(device, subdev); + mutex_unlock(&host1x->devices_lock); + return 0; + } + } + } + + mutex_unlock(&host1x->devices_lock); + return -ENODEV; +} + +struct bus_type host1x_bus_type = { + .name = "host1x", +}; + +int host1x_bus_init(void) +{ + return bus_register(&host1x_bus_type); +} + +void host1x_bus_exit(void) +{ + bus_unregister(&host1x_bus_type); +} + +static void host1x_device_release(struct device *dev) +{ + struct host1x_device *device = to_host1x_device(dev); + + kfree(device); +} + +static int host1x_device_add(struct host1x *host1x, + struct host1x_driver *driver) +{ + struct host1x_client *client, *tmp; + struct host1x_subdev *subdev; + struct host1x_device *device; + int err; + + device = kzalloc(sizeof(*device), GFP_KERNEL); + if (!device) + return -ENOMEM; + + mutex_init(&device->subdevs_lock); + INIT_LIST_HEAD(&device->subdevs); + INIT_LIST_HEAD(&device->active); + mutex_init(&device->clients_lock); + INIT_LIST_HEAD(&device->clients); + INIT_LIST_HEAD(&device->list); + device->driver = driver; + + device->dev.coherent_dma_mask = host1x->dev->coherent_dma_mask; + device->dev.dma_mask = &device->dev.coherent_dma_mask; + device->dev.release = host1x_device_release; + dev_set_name(&device->dev, driver->name); + device->dev.bus = &host1x_bus_type; + device->dev.parent = host1x->dev; + + err = device_register(&device->dev); + if (err < 0) + return err; + + err = host1x_device_parse_dt(device); + if (err < 0) { + device_unregister(&device->dev); + return err; + } + + mutex_lock(&host1x->devices_lock); + list_add_tail(&device->list, &host1x->devices); + mutex_unlock(&host1x->devices_lock); + + mutex_lock(&clients_lock); + + list_for_each_entry_safe(client, tmp, &clients, list) { + list_for_each_entry(subdev, &device->subdevs, list) { + if (subdev->np == client->dev->of_node) { + host1x_subdev_register(device, subdev, client); + break; + } + } + } + + mutex_unlock(&clients_lock); + + return 0; +} + +/* + * Removes a device by first unregistering any subdevices and then removing + * itself from the list of devices. + * + * This function must be called with the host1x->devices_lock held. + */ +static void host1x_device_del(struct host1x *host1x, + struct host1x_device *device) +{ + struct host1x_subdev *subdev, *sd; + struct host1x_client *client, *cl; + + mutex_lock(&device->subdevs_lock); + + /* unregister subdevices */ + list_for_each_entry_safe(subdev, sd, &device->active, list) { + /* + * host1x_subdev_unregister() will remove the client from + * any lists, so we'll need to manually add it back to the + * list of idle clients. + * + * XXX: Alternatively, perhaps don't remove the client from + * any lists in host1x_subdev_unregister() and instead do + * that explicitly from host1x_unregister_client()? + */ + client = subdev->client; + + __host1x_subdev_unregister(device, subdev); + + /* add the client to the list of idle clients */ + mutex_lock(&clients_lock); + list_add_tail(&client->list, &clients); + mutex_unlock(&clients_lock); + } + + /* remove subdevices */ + list_for_each_entry_safe(subdev, sd, &device->subdevs, list) + host1x_subdev_del(subdev); + + mutex_unlock(&device->subdevs_lock); + + /* move clients to idle list */ + mutex_lock(&clients_lock); + mutex_lock(&device->clients_lock); + + list_for_each_entry_safe(client, cl, &device->clients, list) + list_move_tail(&client->list, &clients); + + mutex_unlock(&device->clients_lock); + mutex_unlock(&clients_lock); + + /* finally remove the device */ + list_del_init(&device->list); + device_unregister(&device->dev); +} + +static void host1x_attach_driver(struct host1x *host1x, + struct host1x_driver *driver) +{ + struct host1x_device *device; + int err; + + mutex_lock(&host1x->devices_lock); + + list_for_each_entry(device, &host1x->devices, list) { + if (device->driver == driver) { + mutex_unlock(&host1x->devices_lock); + return; + } + } + + mutex_unlock(&host1x->devices_lock); + + err = host1x_device_add(host1x, driver); + if (err < 0) + dev_err(host1x->dev, "failed to allocate device: %d\n", err); +} + +static void host1x_detach_driver(struct host1x *host1x, + struct host1x_driver *driver) +{ + struct host1x_device *device, *tmp; + + mutex_lock(&host1x->devices_lock); + + list_for_each_entry_safe(device, tmp, &host1x->devices, list) + if (device->driver == driver) + host1x_device_del(host1x, device); + + mutex_unlock(&host1x->devices_lock); +} + +int host1x_register(struct host1x *host1x) +{ + struct host1x_driver *driver; + + mutex_lock(&devices_lock); + list_add_tail(&host1x->list, &devices); + mutex_unlock(&devices_lock); + + mutex_lock(&drivers_lock); + + list_for_each_entry(driver, &drivers, list) + host1x_attach_driver(host1x, driver); + + mutex_unlock(&drivers_lock); + + return 0; +} + +int host1x_unregister(struct host1x *host1x) +{ + struct host1x_driver *driver; + + mutex_lock(&drivers_lock); + + list_for_each_entry(driver, &drivers, list) + host1x_detach_driver(host1x, driver); + + mutex_unlock(&drivers_lock); + + mutex_lock(&devices_lock); + list_del_init(&host1x->list); + mutex_unlock(&devices_lock); + + return 0; +} + +int host1x_driver_register(struct host1x_driver *driver) +{ + struct host1x *host1x; + + INIT_LIST_HEAD(&driver->list); + + mutex_lock(&drivers_lock); + list_add_tail(&driver->list, &drivers); + mutex_unlock(&drivers_lock); + + mutex_lock(&devices_lock); + + list_for_each_entry(host1x, &devices, list) + host1x_attach_driver(host1x, driver); + + mutex_unlock(&devices_lock); + + return 0; +} +EXPORT_SYMBOL(host1x_driver_register); + +void host1x_driver_unregister(struct host1x_driver *driver) +{ + mutex_lock(&drivers_lock); + list_del_init(&driver->list); + mutex_unlock(&drivers_lock); +} +EXPORT_SYMBOL(host1x_driver_unregister); + +int host1x_client_register(struct host1x_client *client) +{ + struct host1x *host1x; + int err; + + mutex_lock(&devices_lock); + + list_for_each_entry(host1x, &devices, list) { + err = host1x_register_client(host1x, client); + if (!err) { + mutex_unlock(&devices_lock); + return 0; + } + } + + mutex_unlock(&devices_lock); + + mutex_lock(&clients_lock); + list_add_tail(&client->list, &clients); + mutex_unlock(&clients_lock); + + return 0; +} +EXPORT_SYMBOL(host1x_client_register); + +int host1x_client_unregister(struct host1x_client *client) +{ + struct host1x_client *c; + struct host1x *host1x; + int err; + + mutex_lock(&devices_lock); + + list_for_each_entry(host1x, &devices, list) { + err = host1x_unregister_client(host1x, client); + if (!err) { + mutex_unlock(&devices_lock); + return 0; + } + } + + mutex_unlock(&devices_lock); + mutex_lock(&clients_lock); + + list_for_each_entry(c, &clients, list) { + if (c == client) { + list_del_init(&c->list); + break; + } + } + + mutex_unlock(&clients_lock); + + return 0; +} +EXPORT_SYMBOL(host1x_client_unregister); diff --git a/drivers/gpu/host1x/bus.h b/drivers/gpu/host1x/bus.h new file mode 100644 index 00000000000..4099e99212c --- /dev/null +++ b/drivers/gpu/host1x/bus.h @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2012-2013, NVIDIA Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef HOST1X_BUS_H +#define HOST1X_BUS_H + +struct host1x; + +int host1x_bus_init(void); +void host1x_bus_exit(void); + +int host1x_register(struct host1x *host1x); +int host1x_unregister(struct host1x *host1x); + +#endif diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 105aa4ed665..de0fd552710 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -27,24 +27,12 @@ #define CREATE_TRACE_POINTS #include +#include "bus.h" #include "dev.h" #include "intr.h" #include "channel.h" #include "debug.h" #include "hw/host1x01.h" -#include "host1x_client.h" - -void host1x_set_drm_data(struct device *dev, void *data) -{ - struct host1x *host1x = dev_get_drvdata(dev); - host1x->drm_data = data; -} - -void *host1x_get_drm_data(struct device *dev) -{ - struct host1x *host1x = dev_get_drvdata(dev); - return host1x ? host1x->drm_data : NULL; -} void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r) { @@ -114,6 +102,9 @@ static int host1x_probe(struct platform_device *pdev) if (!host) return -ENOMEM; + mutex_init(&host->devices_lock); + INIT_LIST_HEAD(&host->devices); + INIT_LIST_HEAD(&host->list); host->dev = &pdev->dev; host->info = id->data; @@ -163,10 +154,14 @@ static int host1x_probe(struct platform_device *pdev) host1x_debug_init(host); - tegra_drm_alloc(pdev); + err = host1x_register(host); + if (err < 0) + goto fail_deinit_intr; return 0; +fail_deinit_intr: + host1x_intr_deinit(host); fail_deinit_syncpt: host1x_syncpt_deinit(host); return err; @@ -176,6 +171,7 @@ static int host1x_remove(struct platform_device *pdev) { struct host1x *host = platform_get_drvdata(pdev); + host1x_unregister(host); host1x_intr_deinit(host); host1x_syncpt_deinit(host); clk_disable_unprepare(host->clk); @@ -196,46 +192,24 @@ static int __init tegra_host1x_init(void) { int err; - err = platform_driver_register(&tegra_host1x_driver); + err = host1x_bus_init(); if (err < 0) return err; -#ifdef CONFIG_DRM_TEGRA - 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; -#endif + err = platform_driver_register(&tegra_host1x_driver); + if (err < 0) { + host1x_bus_exit(); + return err; + } return 0; - -#ifdef CONFIG_DRM_TEGRA -unregister_hdmi: - platform_driver_unregister(&tegra_hdmi_driver); -unregister_dc: - platform_driver_unregister(&tegra_dc_driver); -unregister_host1x: - platform_driver_unregister(&tegra_host1x_driver); - return err; -#endif } module_init(tegra_host1x_init); static void __exit tegra_host1x_exit(void) { -#ifdef CONFIG_DRM_TEGRA - platform_driver_unregister(&tegra_gr2d_driver); - platform_driver_unregister(&tegra_hdmi_driver); - platform_driver_unregister(&tegra_dc_driver); -#endif platform_driver_unregister(&tegra_host1x_driver); + host1x_bus_exit(); } module_exit(tegra_host1x_exit); diff --git a/drivers/gpu/host1x/dev.h b/drivers/gpu/host1x/dev.h index bed90a8131b..6cf689b9e17 100644 --- a/drivers/gpu/host1x/dev.h +++ b/drivers/gpu/host1x/dev.h @@ -125,7 +125,10 @@ struct host1x { struct dentry *debugfs; - void *drm_data; + struct mutex devices_lock; + struct list_head devices; + + struct list_head list; }; void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v); @@ -301,8 +304,4 @@ static inline void host1x_hw_show_mlocks(struct host1x *host, struct output *o) host->debug_op->show_mlocks(host, o); } -extern struct platform_driver tegra_dc_driver; -extern struct platform_driver tegra_hdmi_driver; -extern struct platform_driver tegra_gr2d_driver; - #endif diff --git a/drivers/gpu/host1x/drm/bus.c b/drivers/gpu/host1x/drm/bus.c new file mode 100644 index 00000000000..565f8f7b9a4 --- /dev/null +++ b/drivers/gpu/host1x/drm/bus.c @@ -0,0 +1,76 @@ +/* + * 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 "drm.h" + +static int drm_host1x_set_busid(struct drm_device *dev, + struct drm_master *master) +{ + const char *device = dev_name(dev->dev); + const char *driver = dev->driver->name; + const char *bus = dev->dev->bus->name; + int length; + + master->unique_len = strlen(bus) + 1 + strlen(device); + master->unique_size = master->unique_len; + + master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL); + if (!master->unique) + return -ENOMEM; + + snprintf(master->unique, master->unique_len + 1, "%s:%s", bus, device); + + length = strlen(driver) + 1 + master->unique_len; + + dev->devname = kmalloc(length + 1, GFP_KERNEL); + if (!dev->devname) + return -ENOMEM; + + snprintf(dev->devname, length + 1, "%s@%s", driver, master->unique); + + return 0; +} + +static struct drm_bus drm_host1x_bus = { + .bus_type = DRIVER_BUS_HOST1X, + .set_busid = drm_host1x_set_busid, +}; + +int drm_host1x_init(struct drm_driver *driver, struct host1x_device *device) +{ + struct drm_device *drm; + int ret; + + INIT_LIST_HEAD(&driver->device_list); + driver->bus = &drm_host1x_bus; + + drm = drm_dev_alloc(driver, &device->dev); + if (!drm) + return -ENOMEM; + + ret = drm_dev_register(drm, 0); + if (ret) + goto err_free; + + DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", driver->name, + driver->major, driver->minor, driver->patchlevel, + driver->date, drm->primary->index); + + return 0; + +err_free: + drm_dev_free(drm); + return ret; +} + +void drm_host1x_exit(struct drm_driver *driver, struct host1x_device *device) +{ + struct tegra_drm *tegra = dev_get_drvdata(&device->dev); + + drm_put_dev(tegra->drm); +} diff --git a/drivers/gpu/host1x/drm/dc.c b/drivers/gpu/host1x/drm/dc.c index 5106df08f04..588d4ba0d8c 100644 --- a/drivers/gpu/host1x/drm/dc.c +++ b/drivers/gpu/host1x/drm/dc.c @@ -11,7 +11,6 @@ #include #include -#include "host1x_client.h" #include "dc.h" #include "drm.h" #include "gem.h" @@ -1040,28 +1039,28 @@ static int tegra_dc_debugfs_exit(struct tegra_dc *dc) static int tegra_dc_init(struct host1x_client *client) { - struct tegra_drm_client *drm = to_tegra_drm_client(client); - struct tegra_dc *dc = tegra_drm_client_to_dc(drm); + struct tegra_drm *tegra = dev_get_drvdata(client->parent); + struct tegra_dc *dc = host1x_client_to_dc(client); int err; - dc->pipe = drm->drm->mode_config.num_crtc; + dc->pipe = tegra->drm->mode_config.num_crtc; - drm_crtc_init(drm->drm, &dc->base, &tegra_crtc_funcs); + drm_crtc_init(tegra->drm, &dc->base, &tegra_crtc_funcs); drm_mode_crtc_set_gamma_size(&dc->base, 256); drm_crtc_helper_add(&dc->base, &tegra_crtc_helper_funcs); - err = tegra_dc_rgb_init(drm->drm, dc); + err = tegra_dc_rgb_init(tegra->drm, dc); if (err < 0 && err != -ENODEV) { dev_err(dc->dev, "failed to initialize RGB output: %d\n", err); return err; } - err = tegra_dc_add_planes(drm->drm, dc); + err = tegra_dc_add_planes(tegra->drm, dc); if (err < 0) return err; if (IS_ENABLED(CONFIG_DEBUG_FS)) { - err = tegra_dc_debugfs_init(dc, drm->drm->primary); + err = tegra_dc_debugfs_init(dc, tegra->drm->primary); if (err < 0) dev_err(dc->dev, "debugfs setup failed: %d\n", err); } @@ -1079,8 +1078,7 @@ static int tegra_dc_init(struct host1x_client *client) static int tegra_dc_exit(struct host1x_client *client) { - struct tegra_drm_client *drm = to_tegra_drm_client(client); - struct tegra_dc *dc = tegra_drm_client_to_dc(drm); + struct tegra_dc *dc = host1x_client_to_dc(client); int err; devm_free_irq(dc->dev, dc->irq, dc); @@ -1107,7 +1105,6 @@ static const struct host1x_client_ops dc_client_ops = { static int tegra_dc_probe(struct platform_device *pdev) { - struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct resource *regs; struct tegra_dc *dc; int err; @@ -1141,9 +1138,9 @@ static int tegra_dc_probe(struct platform_device *pdev) return -ENXIO; } - INIT_LIST_HEAD(&dc->client.base.list); - dc->client.base.ops = &dc_client_ops; - dc->client.base.dev = &pdev->dev; + INIT_LIST_HEAD(&dc->client.list); + dc->client.ops = &dc_client_ops; + dc->client.dev = &pdev->dev; err = tegra_dc_rgb_probe(dc); if (err < 0 && err != -ENODEV) { @@ -1151,7 +1148,7 @@ static int tegra_dc_probe(struct platform_device *pdev) return err; } - err = host1x_register_client(tegra, &dc->client.base); + err = host1x_client_register(&dc->client); if (err < 0) { dev_err(&pdev->dev, "failed to register host1x client: %d\n", err); @@ -1165,11 +1162,10 @@ static int tegra_dc_probe(struct platform_device *pdev) static int tegra_dc_remove(struct platform_device *pdev) { - struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct tegra_dc *dc = platform_get_drvdata(pdev); int err; - err = host1x_unregister_client(tegra, &dc->client.base); + err = host1x_client_unregister(&dc->client); if (err < 0) { dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", err); diff --git a/drivers/gpu/host1x/drm/drm.c b/drivers/gpu/host1x/drm/drm.c index 1abcdbc7f4c..c2db409bbd6 100644 --- a/drivers/gpu/host1x/drm/drm.c +++ b/drivers/gpu/host1x/drm/drm.c @@ -7,7 +7,8 @@ * published by the Free Software Foundation. */ -#include "host1x_client.h" +#include + #include "drm.h" #include "gem.h" @@ -22,239 +23,25 @@ struct tegra_drm_file { struct list_head contexts; }; -struct host1x_subdev { - struct host1x_client *client; - struct device_node *np; - struct list_head list; -}; - -static int host1x_subdev_add(struct tegra_drm *tegra, struct device_node *np) -{ - struct host1x_subdev *subdev; - - subdev = kzalloc(sizeof(*subdev), GFP_KERNEL); - if (!subdev) - return -ENOMEM; - - INIT_LIST_HEAD(&subdev->list); - subdev->np = of_node_get(np); - - list_add_tail(&subdev->list, &tegra->subdevs); - - return 0; -} - -static int host1x_subdev_register(struct tegra_drm *tegra, - struct host1x_subdev *subdev, - struct host1x_client *client) -{ - mutex_lock(&tegra->subdevs_lock); - list_del_init(&subdev->list); - list_add_tail(&subdev->list, &tegra->active); - subdev->client = client; - mutex_unlock(&tegra->subdevs_lock); - - return 0; -} - -static int host1x_subdev_unregister(struct tegra_drm *tegra, - struct host1x_subdev *subdev) -{ - mutex_lock(&tegra->subdevs_lock); - list_del_init(&subdev->list); - mutex_unlock(&tegra->subdevs_lock); - - of_node_put(subdev->np); - kfree(subdev); - - return 0; -} - -static int tegra_parse_dt(struct tegra_drm *tegra) -{ - 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(tegra->dev->of_node, np) { - if (of_device_is_compatible(np, compat[i]) && - of_device_is_available(np)) { - err = host1x_subdev_add(tegra, np); - if (err < 0) - return err; - } - } - } - - return 0; -} - -int tegra_drm_alloc(struct platform_device *pdev) +static int tegra_drm_load(struct drm_device *drm, unsigned long flags) { + struct host1x_device *device = to_host1x_device(drm->dev); struct tegra_drm *tegra; int err; - tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL); + tegra = kzalloc(sizeof(*tegra), GFP_KERNEL); if (!tegra) return -ENOMEM; - mutex_init(&tegra->subdevs_lock); - INIT_LIST_HEAD(&tegra->subdevs); - INIT_LIST_HEAD(&tegra->active); + dev_set_drvdata(drm->dev, tegra); mutex_init(&tegra->clients_lock); INIT_LIST_HEAD(&tegra->clients); - tegra->dev = &pdev->dev; - - err = tegra_parse_dt(tegra); - if (err < 0) { - dev_err(&pdev->dev, "failed to parse DT: %d\n", err); - return err; - } - - host1x_set_drm_data(&pdev->dev, tegra); - - return 0; -} - -int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm) -{ - struct host1x_client *client; - int err; - - mutex_lock(&tegra->clients_lock); - - list_for_each_entry(client, &tegra->clients, list) { - struct tegra_drm_client *tdc = to_tegra_drm_client(client); - - /* associate client with DRM device */ - tdc->drm = drm; - - if (client->ops && client->ops->init) { - err = client->ops->init(client); - if (err < 0) { - dev_err(tegra->dev, - "DRM setup failed for %s: %d\n", - dev_name(client->dev), err); - mutex_unlock(&tegra->clients_lock); - return err; - } - } - } - - mutex_unlock(&tegra->clients_lock); - - return 0; -} - -int tegra_drm_exit(struct tegra_drm *tegra) -{ - struct host1x_client *client; - struct platform_device *pdev; - int err; - - if (!tegra->drm) - return 0; - - mutex_lock(&tegra->clients_lock); - - list_for_each_entry_reverse(client, &tegra->clients, list) { - if (client->ops && client->ops->exit) { - err = client->ops->exit(client); - if (err < 0) { - dev_err(tegra->dev, - "DRM cleanup failed for %s: %d\n", - dev_name(client->dev), err); - mutex_unlock(&tegra->clients_lock); - return err; - } - } - } - - mutex_unlock(&tegra->clients_lock); - - pdev = to_platform_device(tegra->dev); - drm_platform_exit(&tegra_drm_driver, pdev); - tegra->drm = NULL; - - return 0; -} - -int host1x_register_client(struct tegra_drm *tegra, - struct host1x_client *client) -{ - struct host1x_subdev *subdev, *tmp; - int err; - - mutex_lock(&tegra->clients_lock); - list_add_tail(&client->list, &tegra->clients); - mutex_unlock(&tegra->clients_lock); - - list_for_each_entry_safe(subdev, tmp, &tegra->subdevs, list) - if (subdev->np == client->dev->of_node) - host1x_subdev_register(tegra, subdev, client); - - if (list_empty(&tegra->subdevs)) { - struct platform_device *pdev = to_platform_device(tegra->dev); - - err = drm_platform_init(&tegra_drm_driver, pdev); - if (err < 0) { - dev_err(tegra->dev, "drm_platform_init(): %d\n", err); - return err; - } - } - - return 0; -} - -int host1x_unregister_client(struct tegra_drm *tegra, - struct host1x_client *client) -{ - struct host1x_subdev *subdev, *tmp; - int err; - - list_for_each_entry_safe(subdev, tmp, &tegra->active, list) { - if (subdev->client == client) { - err = tegra_drm_exit(tegra); - if (err < 0) { - dev_err(tegra->dev, "tegra_drm_exit(): %d\n", - err); - return err; - } - - host1x_subdev_unregister(tegra, subdev); - break; - } - } - - mutex_lock(&tegra->clients_lock); - list_del_init(&client->list); - mutex_unlock(&tegra->clients_lock); - - return 0; -} - -static int tegra_drm_load(struct drm_device *drm, unsigned long flags) -{ - struct tegra_drm *tegra; - int err; - - tegra = host1x_get_drm_data(drm->dev); drm->dev_private = tegra; tegra->drm = drm; drm_mode_config_init(drm); - err = tegra_drm_init(tegra, drm); + err = host1x_device_init(device); if (err < 0) return err; @@ -280,9 +67,16 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags) 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; @@ -370,10 +164,11 @@ static int tegra_gem_mmap(struct drm_device *drm, void *data, 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; @@ -384,10 +179,11 @@ static int tegra_syncpt_read(struct drm_device *drm, void *data, 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; @@ -397,10 +193,11 @@ static int tegra_syncpt_incr(struct drm_device *drm, void *data, 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; @@ -422,7 +219,7 @@ static int tegra_open_channel(struct drm_device *drm, void *data, if (!context) return -ENOMEM; - list_for_each_entry(client, &tegra->clients, base.list) + list_for_each_entry(client, &tegra->clients, list) if (client->base.class == args->client) { err = client->ops->open_channel(client, context); if (err) @@ -441,8 +238,8 @@ static int tegra_open_channel(struct drm_device *drm, void *data, static int tegra_close_channel(struct drm_device *drm, void *data, struct drm_file *file) { - struct drm_tegra_close_channel *args = data; struct tegra_drm_file *fpriv = file->driver_priv; + struct drm_tegra_close_channel *args = data; struct tegra_drm_context *context; context = tegra_drm_get_context(args->context); @@ -652,3 +449,97 @@ struct drm_driver tegra_drm_driver = { .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 "); +MODULE_DESCRIPTION("NVIDIA Tegra DRM driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/host1x/drm/drm.h b/drivers/gpu/host1x/drm/drm.h index 8c26c6b1f5e..25522e23c7b 100644 --- a/drivers/gpu/host1x/drm/drm.h +++ b/drivers/gpu/host1x/drm/drm.h @@ -32,11 +32,6 @@ struct tegra_fbdev { struct tegra_drm { struct drm_device *drm; - struct device *dev; - - struct mutex subdevs_lock; - struct list_head subdevs; - struct list_head active; struct mutex clients_lock; struct list_head clients; @@ -63,29 +58,29 @@ struct tegra_drm_client_ops { struct tegra_drm_client { struct host1x_client base; - struct drm_device *drm; + struct list_head list; const struct tegra_drm_client_ops *ops; }; static inline struct tegra_drm_client * -to_tegra_drm_client(struct host1x_client *client) +host1x_to_drm_client(struct host1x_client *client) { return container_of(client, struct tegra_drm_client, base); } +extern int tegra_drm_register_client(struct tegra_drm *tegra, + struct tegra_drm_client *client); +extern int tegra_drm_unregister_client(struct tegra_drm *tegra, + struct tegra_drm_client *client); + extern int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); extern int tegra_drm_exit(struct tegra_drm *tegra); -extern int host1x_register_client(struct tegra_drm *tegra, - struct host1x_client *client); -extern int host1x_unregister_client(struct tegra_drm *tegra, - struct host1x_client *client); - struct tegra_output; struct tegra_dc { - struct tegra_drm_client client; + struct host1x_client client; struct device *dev; spinlock_t lock; @@ -109,7 +104,7 @@ struct tegra_dc { }; static inline struct tegra_dc * -tegra_drm_client_to_dc(struct tegra_drm_client *client) +host1x_client_to_dc(struct host1x_client *client) { return container_of(client, struct tegra_dc, client); } @@ -235,6 +230,10 @@ static inline int tegra_output_check_mode(struct tegra_output *output, return output ? -ENOSYS : -EINVAL; } +/* from bus.c */ +int drm_host1x_init(struct drm_driver *driver, struct host1x_device *device); +void drm_host1x_exit(struct drm_driver *driver, struct host1x_device *device); + /* from rgb.c */ extern int tegra_dc_rgb_probe(struct tegra_dc *dc); extern int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); @@ -252,6 +251,8 @@ extern int tegra_drm_fb_init(struct drm_device *drm); extern void tegra_drm_fb_exit(struct drm_device *drm); extern void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); -extern struct drm_driver tegra_drm_driver; +extern struct platform_driver tegra_dc_driver; +extern struct platform_driver tegra_hdmi_driver; +extern struct platform_driver tegra_gr2d_driver; #endif /* HOST1X_DRM_H */ diff --git a/drivers/gpu/host1x/drm/gr2d.c b/drivers/gpu/host1x/drm/gr2d.c index dfb822428ca..4e407e30da1 100644 --- a/drivers/gpu/host1x/drm/gr2d.c +++ b/drivers/gpu/host1x/drm/gr2d.c @@ -16,7 +16,6 @@ #include -#include "host1x_client.h" #include "drm.h" #include "gem.h" @@ -35,19 +34,45 @@ static inline struct gr2d *to_gr2d(struct tegra_drm_client *client) return container_of(client, struct gr2d, client); } -static int gr2d_client_init(struct host1x_client *client) +static int gr2d_init(struct host1x_client *client) { - return 0; + struct tegra_drm_client *drm = host1x_to_drm_client(client); + struct tegra_drm *tegra = dev_get_drvdata(client->parent); + struct gr2d *gr2d = to_gr2d(drm); + + gr2d->channel = host1x_channel_request(client->dev); + if (!gr2d->channel) + return -ENOMEM; + + client->syncpts[0] = host1x_syncpt_request(client->dev, false); + if (!client->syncpts[0]) { + host1x_channel_free(gr2d->channel); + return -ENOMEM; + } + + return tegra_drm_register_client(tegra, drm); } -static int gr2d_client_exit(struct host1x_client *client) +static int gr2d_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 gr2d *gr2d = to_gr2d(drm); + int err; + + err = tegra_drm_unregister_client(tegra, drm); + if (err < 0) + return err; + + host1x_syncpt_free(client->syncpts[0]); + host1x_channel_free(gr2d->channel); + return 0; } static const struct host1x_client_ops gr2d_client_ops = { - .init = gr2d_client_init, - .exit = gr2d_client_exit, + .init = gr2d_init, + .exit = gr2d_exit, }; static int gr2d_open_channel(struct tegra_drm_client *client, @@ -240,7 +265,6 @@ static const u32 gr2d_addr_regs[] = { static int gr2d_probe(struct platform_device *pdev) { - struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct device *dev = &pdev->dev; struct host1x_syncpt **syncpts; struct gr2d *gr2d; @@ -267,25 +291,17 @@ static int gr2d_probe(struct platform_device *pdev) return err; } - gr2d->channel = host1x_channel_request(dev); - if (!gr2d->channel) - return -ENOMEM; - - *syncpts = host1x_syncpt_request(dev, false); - if (!(*syncpts)) { - host1x_channel_free(gr2d->channel); - return -ENOMEM; - } - INIT_LIST_HEAD(&gr2d->client.base.list); gr2d->client.base.ops = &gr2d_client_ops; gr2d->client.base.dev = dev; gr2d->client.base.class = HOST1X_CLASS_GR2D; gr2d->client.base.syncpts = syncpts; gr2d->client.base.num_syncpts = 1; + + INIT_LIST_HEAD(&gr2d->client.list); gr2d->client.ops = &gr2d_ops; - err = host1x_register_client(tegra, &gr2d->client.base); + err = host1x_client_register(&gr2d->client.base); if (err < 0) { dev_err(dev, "failed to register host1x client: %d\n", err); return err; @@ -302,22 +318,16 @@ static int gr2d_probe(struct platform_device *pdev) static int gr2d_remove(struct platform_device *pdev) { - struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct gr2d *gr2d = platform_get_drvdata(pdev); - unsigned int i; int err; - err = host1x_unregister_client(tegra, &gr2d->client.base); + err = host1x_client_unregister(&gr2d->client.base); if (err < 0) { dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", err); return err; } - for (i = 0; i < gr2d->client.base.num_syncpts; i++) - host1x_syncpt_free(gr2d->client.base.syncpts[i]); - - host1x_channel_free(gr2d->channel); clk_disable_unprepare(gr2d->clk); return 0; diff --git a/drivers/gpu/host1x/drm/hdmi.c b/drivers/gpu/host1x/drm/hdmi.c index a2370045993..f5663d15670 100644 --- a/drivers/gpu/host1x/drm/hdmi.c +++ b/drivers/gpu/host1x/drm/hdmi.c @@ -13,13 +13,12 @@ #include #include -#include "host1x_client.h" #include "hdmi.h" #include "drm.h" #include "dc.h" struct tegra_hdmi { - struct tegra_drm_client client; + struct host1x_client client; struct tegra_output output; struct device *dev; @@ -43,7 +42,7 @@ struct tegra_hdmi { }; static inline struct tegra_hdmi * -tegra_drm_client_to_hdmi(struct tegra_drm_client *client) +host1x_client_to_hdmi(struct host1x_client *client) { return container_of(client, struct tegra_hdmi, client); } @@ -1118,22 +1117,22 @@ static int tegra_hdmi_debugfs_exit(struct tegra_hdmi *hdmi) static int tegra_hdmi_init(struct host1x_client *client) { - struct tegra_drm_client *drm = to_tegra_drm_client(client); - struct tegra_hdmi *hdmi = tegra_drm_client_to_hdmi(drm); + struct tegra_drm *tegra = dev_get_drvdata(client->parent); + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); int err; hdmi->output.type = TEGRA_OUTPUT_HDMI; hdmi->output.dev = client->dev; hdmi->output.ops = &hdmi_ops; - err = tegra_output_init(drm->drm, &hdmi->output); + err = tegra_output_init(tegra->drm, &hdmi->output); if (err < 0) { dev_err(client->dev, "output setup failed: %d\n", err); return err; } if (IS_ENABLED(CONFIG_DEBUG_FS)) { - err = tegra_hdmi_debugfs_init(hdmi, drm->drm->primary); + err = tegra_hdmi_debugfs_init(hdmi, tegra->drm->primary); if (err < 0) dev_err(client->dev, "debugfs setup failed: %d\n", err); } @@ -1143,8 +1142,7 @@ static int tegra_hdmi_init(struct host1x_client *client) static int tegra_hdmi_exit(struct host1x_client *client) { - struct tegra_drm_client *drm = to_tegra_drm_client(client); - struct tegra_hdmi *hdmi = tegra_drm_client_to_hdmi(drm); + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); int err; if (IS_ENABLED(CONFIG_DEBUG_FS)) { @@ -1176,7 +1174,6 @@ static const struct host1x_client_ops hdmi_client_ops = { static int tegra_hdmi_probe(struct platform_device *pdev) { - struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct tegra_hdmi *hdmi; struct resource *regs; int err; @@ -1247,11 +1244,11 @@ static int tegra_hdmi_probe(struct platform_device *pdev) hdmi->irq = err; - INIT_LIST_HEAD(&hdmi->client.base.list); - hdmi->client.base.ops = &hdmi_client_ops; - hdmi->client.base.dev = &pdev->dev; + INIT_LIST_HEAD(&hdmi->client.list); + hdmi->client.ops = &hdmi_client_ops; + hdmi->client.dev = &pdev->dev; - err = host1x_register_client(tegra, &hdmi->client.base); + err = host1x_client_register(&hdmi->client); if (err < 0) { dev_err(&pdev->dev, "failed to register host1x client: %d\n", err); @@ -1265,11 +1262,10 @@ static int tegra_hdmi_probe(struct platform_device *pdev) static int tegra_hdmi_remove(struct platform_device *pdev) { - struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct tegra_hdmi *hdmi = platform_get_drvdata(pdev); int err; - err = host1x_unregister_client(tegra, &hdmi->client.base); + err = host1x_client_unregister(&hdmi->client); if (err < 0) { dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", err); diff --git a/drivers/gpu/host1x/host1x_client.h b/drivers/gpu/host1x/host1x_client.h deleted file mode 100644 index 6a0bd026804..00000000000 --- a/drivers/gpu/host1x/host1x_client.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Copyright (c) 2013, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#ifndef HOST1X_CLIENT_H -#define HOST1X_CLIENT_H - -struct device; -struct platform_device; - -#ifdef CONFIG_DRM_TEGRA -int tegra_drm_alloc(struct platform_device *pdev); -#else -static inline int tegra_drm_alloc(struct platform_device *pdev) -{ - return 0; -} -#endif - -void host1x_set_drm_data(struct device *dev, void *data); -void *host1x_get_drm_data(struct device *dev); - -#endif diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 2b954adf5bd..ffd8ad92cdf 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -150,6 +150,7 @@ int drm_err(const char *func, const char *format, ...); #define DRIVER_BUS_PCI 0x1 #define DRIVER_BUS_PLATFORM 0x2 #define DRIVER_BUS_USB 0x3 +#define DRIVER_BUS_HOST1X 0x4 /***********************************************************************/ /** \name Begin the DRM... */ diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 7442f2a5703..e62c61a4afa 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -19,7 +19,7 @@ #ifndef __LINUX_HOST1X_H #define __LINUX_HOST1X_H -#include +#include #include enum host1x_class { @@ -37,6 +37,7 @@ struct host1x_client_ops { struct host1x_client { struct list_head list; + struct device *parent; struct device *dev; const struct host1x_client_ops *ops; @@ -230,4 +231,46 @@ void host1x_job_put(struct host1x_job *job); int host1x_job_pin(struct host1x_job *job, struct device *dev); void host1x_job_unpin(struct host1x_job *job); +/* + * subdevice probe infrastructure + */ + +struct host1x_device; + +struct host1x_driver { + const struct of_device_id *subdevs; + struct list_head list; + const char *name; + + int (*probe)(struct host1x_device *device); + int (*remove)(struct host1x_device *device); +}; + +int host1x_driver_register(struct host1x_driver *driver); +void host1x_driver_unregister(struct host1x_driver *driver); + +struct host1x_device { + struct host1x_driver *driver; + struct list_head list; + struct device dev; + + struct mutex subdevs_lock; + struct list_head subdevs; + struct list_head active; + + struct mutex clients_lock; + struct list_head clients; +}; + +static inline struct host1x_device *to_host1x_device(struct device *dev) +{ + return container_of(dev, struct host1x_device, dev); +} + +int host1x_device_init(struct host1x_device *device); +int host1x_device_exit(struct host1x_device *device); + +int host1x_client_register(struct host1x_client *client); +int host1x_client_unregister(struct host1x_client *client); + #endif -- cgit v1.2.3-70-g09d2 From 5407f31bd37d1289dfd0a2a23a45c5ff2aec8e58 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 30 Sep 2013 14:17:39 +0200 Subject: gpu: host1x: Add support for Tegra114 Tegra114 uses a slightly updated version of host1x with an additional syncpoint. Signed-off-by: Thierry Reding --- drivers/gpu/host1x/Makefile | 3 +- drivers/gpu/host1x/dev.c | 11 ++ drivers/gpu/host1x/hw/host1x02.c | 42 +++++ drivers/gpu/host1x/hw/host1x02.h | 26 +++ drivers/gpu/host1x/hw/hw_host1x02_channel.h | 121 ++++++++++++++ drivers/gpu/host1x/hw/hw_host1x02_sync.h | 243 ++++++++++++++++++++++++++++ drivers/gpu/host1x/hw/hw_host1x02_uclass.h | 175 ++++++++++++++++++++ 7 files changed, 620 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/host1x/hw/host1x02.c create mode 100644 drivers/gpu/host1x/hw/host1x02.h create mode 100644 drivers/gpu/host1x/hw/hw_host1x02_channel.h create mode 100644 drivers/gpu/host1x/hw/hw_host1x02_sync.h create mode 100644 drivers/gpu/host1x/hw/hw_host1x02_uclass.h (limited to 'drivers/gpu/host1x/dev.c') diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile index 889217cfb79..afa1e9e4e51 100644 --- a/drivers/gpu/host1x/Makefile +++ b/drivers/gpu/host1x/Makefile @@ -7,6 +7,7 @@ host1x-y = \ channel.o \ job.o \ debug.o \ - hw/host1x01.o + hw/host1x01.o \ + hw/host1x02.o obj-$(CONFIG_TEGRA_HOST1X) += host1x.o diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index de0fd552710..ab402a56284 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -33,6 +33,7 @@ #include "channel.h" #include "debug.h" #include "hw/host1x01.h" +#include "hw/host1x02.h" void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r) { @@ -67,7 +68,17 @@ static const struct host1x_info host1x01_info = { .sync_offset = 0x3000, }; +static const struct host1x_info host1x02_info = { + .nb_channels = 9, + .nb_pts = 32, + .nb_mlocks = 16, + .nb_bases = 12, + .init = host1x02_init, + .sync_offset = 0x3000, +}; + static struct of_device_id host1x_of_match[] = { + { .compatible = "nvidia,tegra114-host1x", .data = &host1x02_info, }, { .compatible = "nvidia,tegra30-host1x", .data = &host1x01_info, }, { .compatible = "nvidia,tegra20-host1x", .data = &host1x01_info, }, { }, diff --git a/drivers/gpu/host1x/hw/host1x02.c b/drivers/gpu/host1x/hw/host1x02.c new file mode 100644 index 00000000000..e98caca0ca4 --- /dev/null +++ b/drivers/gpu/host1x/hw/host1x02.c @@ -0,0 +1,42 @@ +/* + * Host1x init for Tegra114 SoCs + * + * Copyright (c) 2013 NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/* include hw specification */ +#include "host1x01.h" +#include "host1x01_hardware.h" + +/* include code */ +#include "cdma_hw.c" +#include "channel_hw.c" +#include "debug_hw.c" +#include "intr_hw.c" +#include "syncpt_hw.c" + +#include "../dev.h" + +int host1x02_init(struct host1x *host) +{ + host->channel_op = &host1x_channel_ops; + host->cdma_op = &host1x_cdma_ops; + host->cdma_pb_op = &host1x_pushbuffer_ops; + host->syncpt_op = &host1x_syncpt_ops; + host->intr_op = &host1x_intr_ops; + host->debug_op = &host1x_debug_ops; + + return 0; +} diff --git a/drivers/gpu/host1x/hw/host1x02.h b/drivers/gpu/host1x/hw/host1x02.h new file mode 100644 index 00000000000..f7486609a90 --- /dev/null +++ b/drivers/gpu/host1x/hw/host1x02.h @@ -0,0 +1,26 @@ +/* + * Host1x init for Tegra114 SoCs + * + * Copyright (c) 2013 NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef HOST1X_HOST1X02_H +#define HOST1X_HOST1X02_H + +struct host1x; + +int host1x02_init(struct host1x *host); + +#endif diff --git a/drivers/gpu/host1x/hw/hw_host1x02_channel.h b/drivers/gpu/host1x/hw/hw_host1x02_channel.h new file mode 100644 index 00000000000..e490bcde33f --- /dev/null +++ b/drivers/gpu/host1x/hw/hw_host1x02_channel.h @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2013 NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + */ + + /* + * Function naming determines intended use: + * + * _r(void) : Returns the offset for register . + * + * _w(void) : Returns the word offset for word (4 byte) element . + * + * __s(void) : Returns size of field of register in bits. + * + * __f(u32 v) : Returns a value based on 'v' which has been shifted + * and masked to place it at field of register . This value + * can be |'d with others to produce a full register value for + * register . + * + * __m(void) : Returns a mask for field of register . This + * value can be ~'d and then &'d to clear the value of field for + * register . + * + * ___f(void) : Returns the constant value after being shifted + * to place it at field of register . This value can be |'d + * with others to produce a full register value for . + * + * __v(u32 r) : Returns the value of field from a full register + * value 'r' after being shifted to place its LSB at bit 0. + * This value is suitable for direct comparison with other unshifted + * values appropriate for use in field of register . + * + * ___v(void) : Returns the constant value for defined for + * field of register . This value is suitable for direct + * comparison with unshifted values appropriate for use in field + * of register . + */ + +#ifndef HOST1X_HW_HOST1X02_CHANNEL_H +#define HOST1X_HW_HOST1X02_CHANNEL_H + +static inline u32 host1x_channel_fifostat_r(void) +{ + return 0x0; +} +#define HOST1X_CHANNEL_FIFOSTAT \ + host1x_channel_fifostat_r() +static inline u32 host1x_channel_fifostat_cfempty_v(u32 r) +{ + return (r >> 11) & 0x1; +} +#define HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(r) \ + host1x_channel_fifostat_cfempty_v(r) +static inline u32 host1x_channel_dmastart_r(void) +{ + return 0x14; +} +#define HOST1X_CHANNEL_DMASTART \ + host1x_channel_dmastart_r() +static inline u32 host1x_channel_dmaput_r(void) +{ + return 0x18; +} +#define HOST1X_CHANNEL_DMAPUT \ + host1x_channel_dmaput_r() +static inline u32 host1x_channel_dmaget_r(void) +{ + return 0x1c; +} +#define HOST1X_CHANNEL_DMAGET \ + host1x_channel_dmaget_r() +static inline u32 host1x_channel_dmaend_r(void) +{ + return 0x20; +} +#define HOST1X_CHANNEL_DMAEND \ + host1x_channel_dmaend_r() +static inline u32 host1x_channel_dmactrl_r(void) +{ + return 0x24; +} +#define HOST1X_CHANNEL_DMACTRL \ + host1x_channel_dmactrl_r() +static inline u32 host1x_channel_dmactrl_dmastop(void) +{ + return 1 << 0; +} +#define HOST1X_CHANNEL_DMACTRL_DMASTOP \ + host1x_channel_dmactrl_dmastop() +static inline u32 host1x_channel_dmactrl_dmastop_v(u32 r) +{ + return (r >> 0) & 0x1; +} +#define HOST1X_CHANNEL_DMACTRL_DMASTOP_V(r) \ + host1x_channel_dmactrl_dmastop_v(r) +static inline u32 host1x_channel_dmactrl_dmagetrst(void) +{ + return 1 << 1; +} +#define HOST1X_CHANNEL_DMACTRL_DMAGETRST \ + host1x_channel_dmactrl_dmagetrst() +static inline u32 host1x_channel_dmactrl_dmainitget(void) +{ + return 1 << 2; +} +#define HOST1X_CHANNEL_DMACTRL_DMAINITGET \ + host1x_channel_dmactrl_dmainitget() + +#endif diff --git a/drivers/gpu/host1x/hw/hw_host1x02_sync.h b/drivers/gpu/host1x/hw/hw_host1x02_sync.h new file mode 100644 index 00000000000..4495401525e --- /dev/null +++ b/drivers/gpu/host1x/hw/hw_host1x02_sync.h @@ -0,0 +1,243 @@ +/* + * Copyright (c) 2013 NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + */ + + /* + * Function naming determines intended use: + * + * _r(void) : Returns the offset for register . + * + * _w(void) : Returns the word offset for word (4 byte) element . + * + * __s(void) : Returns size of field of register in bits. + * + * __f(u32 v) : Returns a value based on 'v' which has been shifted + * and masked to place it at field of register . This value + * can be |'d with others to produce a full register value for + * register . + * + * __m(void) : Returns a mask for field of register . This + * value can be ~'d and then &'d to clear the value of field for + * register . + * + * ___f(void) : Returns the constant value after being shifted + * to place it at field of register . This value can be |'d + * with others to produce a full register value for . + * + * __v(u32 r) : Returns the value of field from a full register + * value 'r' after being shifted to place its LSB at bit 0. + * This value is suitable for direct comparison with other unshifted + * values appropriate for use in field of register . + * + * ___v(void) : Returns the constant value for defined for + * field of register . This value is suitable for direct + * comparison with unshifted values appropriate for use in field + * of register . + */ + +#ifndef HOST1X_HW_HOST1X02_SYNC_H +#define HOST1X_HW_HOST1X02_SYNC_H + +#define REGISTER_STRIDE 4 + +static inline u32 host1x_sync_syncpt_r(unsigned int id) +{ + return 0x400 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT(id) \ + host1x_sync_syncpt_r(id) +static inline u32 host1x_sync_syncpt_thresh_cpu0_int_status_r(unsigned int id) +{ + return 0x40 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT_THRESH_CPU0_INT_STATUS(id) \ + host1x_sync_syncpt_thresh_cpu0_int_status_r(id) +static inline u32 host1x_sync_syncpt_thresh_int_disable_r(unsigned int id) +{ + return 0x60 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT_THRESH_INT_DISABLE(id) \ + host1x_sync_syncpt_thresh_int_disable_r(id) +static inline u32 host1x_sync_syncpt_thresh_int_enable_cpu0_r(unsigned int id) +{ + return 0x68 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT_THRESH_INT_ENABLE_CPU0(id) \ + host1x_sync_syncpt_thresh_int_enable_cpu0_r(id) +static inline u32 host1x_sync_cf_setup_r(unsigned int channel) +{ + return 0x80 + channel * REGISTER_STRIDE; +} +#define HOST1X_SYNC_CF_SETUP(channel) \ + host1x_sync_cf_setup_r(channel) +static inline u32 host1x_sync_cf_setup_base_v(u32 r) +{ + return (r >> 0) & 0x3ff; +} +#define HOST1X_SYNC_CF_SETUP_BASE_V(r) \ + host1x_sync_cf_setup_base_v(r) +static inline u32 host1x_sync_cf_setup_limit_v(u32 r) +{ + return (r >> 16) & 0x3ff; +} +#define HOST1X_SYNC_CF_SETUP_LIMIT_V(r) \ + host1x_sync_cf_setup_limit_v(r) +static inline u32 host1x_sync_cmdproc_stop_r(void) +{ + return 0xac; +} +#define HOST1X_SYNC_CMDPROC_STOP \ + host1x_sync_cmdproc_stop_r() +static inline u32 host1x_sync_ch_teardown_r(void) +{ + return 0xb0; +} +#define HOST1X_SYNC_CH_TEARDOWN \ + host1x_sync_ch_teardown_r() +static inline u32 host1x_sync_usec_clk_r(void) +{ + return 0x1a4; +} +#define HOST1X_SYNC_USEC_CLK \ + host1x_sync_usec_clk_r() +static inline u32 host1x_sync_ctxsw_timeout_cfg_r(void) +{ + return 0x1a8; +} +#define HOST1X_SYNC_CTXSW_TIMEOUT_CFG \ + host1x_sync_ctxsw_timeout_cfg_r() +static inline u32 host1x_sync_ip_busy_timeout_r(void) +{ + return 0x1bc; +} +#define HOST1X_SYNC_IP_BUSY_TIMEOUT \ + host1x_sync_ip_busy_timeout_r() +static inline u32 host1x_sync_mlock_owner_r(unsigned int id) +{ + return 0x340 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_MLOCK_OWNER(id) \ + host1x_sync_mlock_owner_r(id) +static inline u32 host1x_sync_mlock_owner_chid_f(u32 v) +{ + return (v & 0xf) << 8; +} +#define HOST1X_SYNC_MLOCK_OWNER_CHID_F(v) \ + host1x_sync_mlock_owner_chid_f(v) +static inline u32 host1x_sync_mlock_owner_cpu_owns_v(u32 r) +{ + return (r >> 1) & 0x1; +} +#define HOST1X_SYNC_MLOCK_OWNER_CPU_OWNS_V(r) \ + host1x_sync_mlock_owner_cpu_owns_v(r) +static inline u32 host1x_sync_mlock_owner_ch_owns_v(u32 r) +{ + return (r >> 0) & 0x1; +} +#define HOST1X_SYNC_MLOCK_OWNER_CH_OWNS_V(r) \ + host1x_sync_mlock_owner_ch_owns_v(r) +static inline u32 host1x_sync_syncpt_int_thresh_r(unsigned int id) +{ + return 0x500 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT_INT_THRESH(id) \ + host1x_sync_syncpt_int_thresh_r(id) +static inline u32 host1x_sync_syncpt_base_r(unsigned int id) +{ + return 0x600 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT_BASE(id) \ + host1x_sync_syncpt_base_r(id) +static inline u32 host1x_sync_syncpt_cpu_incr_r(unsigned int id) +{ + return 0x700 + id * REGISTER_STRIDE; +} +#define HOST1X_SYNC_SYNCPT_CPU_INCR(id) \ + host1x_sync_syncpt_cpu_incr_r(id) +static inline u32 host1x_sync_cbread_r(unsigned int channel) +{ + return 0x720 + channel * REGISTER_STRIDE; +} +#define HOST1X_SYNC_CBREAD(channel) \ + host1x_sync_cbread_r(channel) +static inline u32 host1x_sync_cfpeek_ctrl_r(void) +{ + return 0x74c; +} +#define HOST1X_SYNC_CFPEEK_CTRL \ + host1x_sync_cfpeek_ctrl_r() +static inline u32 host1x_sync_cfpeek_ctrl_addr_f(u32 v) +{ + return (v & 0x3ff) << 0; +} +#define HOST1X_SYNC_CFPEEK_CTRL_ADDR_F(v) \ + host1x_sync_cfpeek_ctrl_addr_f(v) +static inline u32 host1x_sync_cfpeek_ctrl_channr_f(u32 v) +{ + return (v & 0xf) << 16; +} +#define HOST1X_SYNC_CFPEEK_CTRL_CHANNR_F(v) \ + host1x_sync_cfpeek_ctrl_channr_f(v) +static inline u32 host1x_sync_cfpeek_ctrl_ena_f(u32 v) +{ + return (v & 0x1) << 31; +} +#define HOST1X_SYNC_CFPEEK_CTRL_ENA_F(v) \ + host1x_sync_cfpeek_ctrl_ena_f(v) +static inline u32 host1x_sync_cfpeek_read_r(void) +{ + return 0x750; +} +#define HOST1X_SYNC_CFPEEK_READ \ + host1x_sync_cfpeek_read_r() +static inline u32 host1x_sync_cfpeek_ptrs_r(void) +{ + return 0x754; +} +#define HOST1X_SYNC_CFPEEK_PTRS \ + host1x_sync_cfpeek_ptrs_r() +static inline u32 host1x_sync_cfpeek_ptrs_cf_rd_ptr_v(u32 r) +{ + return (r >> 0) & 0x3ff; +} +#define HOST1X_SYNC_CFPEEK_PTRS_CF_RD_PTR_V(r) \ + host1x_sync_cfpeek_ptrs_cf_rd_ptr_v(r) +static inline u32 host1x_sync_cfpeek_ptrs_cf_wr_ptr_v(u32 r) +{ + return (r >> 16) & 0x3ff; +} +#define HOST1X_SYNC_CFPEEK_PTRS_CF_WR_PTR_V(r) \ + host1x_sync_cfpeek_ptrs_cf_wr_ptr_v(r) +static inline u32 host1x_sync_cbstat_r(unsigned int channel) +{ + return 0x758 + channel * REGISTER_STRIDE; +} +#define HOST1X_SYNC_CBSTAT(channel) \ + host1x_sync_cbstat_r(channel) +static inline u32 host1x_sync_cbstat_cboffset_v(u32 r) +{ + return (r >> 0) & 0xffff; +} +#define HOST1X_SYNC_CBSTAT_CBOFFSET_V(r) \ + host1x_sync_cbstat_cboffset_v(r) +static inline u32 host1x_sync_cbstat_cbclass_v(u32 r) +{ + return (r >> 16) & 0x3ff; +} +#define HOST1X_SYNC_CBSTAT_CBCLASS_V(r) \ + host1x_sync_cbstat_cbclass_v(r) + +#endif diff --git a/drivers/gpu/host1x/hw/hw_host1x02_uclass.h b/drivers/gpu/host1x/hw/hw_host1x02_uclass.h new file mode 100644 index 00000000000..a3b3c987441 --- /dev/null +++ b/drivers/gpu/host1x/hw/hw_host1x02_uclass.h @@ -0,0 +1,175 @@ +/* + * Copyright (c) 2013 NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + * + */ + + /* + * Function naming determines intended use: + * + * _r(void) : Returns the offset for register . + * + * _w(void) : Returns the word offset for word (4 byte) element . + * + * __s(void) : Returns size of field of register in bits. + * + * __f(u32 v) : Returns a value based on 'v' which has been shifted + * and masked to place it at field of register . This value + * can be |'d with others to produce a full register value for + * register . + * + * __m(void) : Returns a mask for field of register . This + * value can be ~'d and then &'d to clear the value of field for + * register . + * + * ___f(void) : Returns the constant value after being shifted + * to place it at field of register . This value can be |'d + * with others to produce a full register value for . + * + * __v(u32 r) : Returns the value of field from a full register + * value 'r' after being shifted to place its LSB at bit 0. + * This value is suitable for direct comparison with other unshifted + * values appropriate for use in field of register . + * + * ___v(void) : Returns the constant value for defined for + * field of register . This value is suitable for direct + * comparison with unshifted values appropriate for use in field + * of register . + */ + +#ifndef HOST1X_HW_HOST1X02_UCLASS_H +#define HOST1X_HW_HOST1X02_UCLASS_H + +static inline u32 host1x_uclass_incr_syncpt_r(void) +{ + return 0x0; +} +#define HOST1X_UCLASS_INCR_SYNCPT \ + host1x_uclass_incr_syncpt_r() +static inline u32 host1x_uclass_incr_syncpt_cond_f(u32 v) +{ + return (v & 0xff) << 8; +} +#define HOST1X_UCLASS_INCR_SYNCPT_COND_F(v) \ + host1x_uclass_incr_syncpt_cond_f(v) +static inline u32 host1x_uclass_incr_syncpt_indx_f(u32 v) +{ + return (v & 0xff) << 0; +} +#define HOST1X_UCLASS_INCR_SYNCPT_INDX_F(v) \ + host1x_uclass_incr_syncpt_indx_f(v) +static inline u32 host1x_uclass_wait_syncpt_r(void) +{ + return 0x8; +} +#define HOST1X_UCLASS_WAIT_SYNCPT \ + host1x_uclass_wait_syncpt_r() +static inline u32 host1x_uclass_wait_syncpt_indx_f(u32 v) +{ + return (v & 0xff) << 24; +} +#define HOST1X_UCLASS_WAIT_SYNCPT_INDX_F(v) \ + host1x_uclass_wait_syncpt_indx_f(v) +static inline u32 host1x_uclass_wait_syncpt_thresh_f(u32 v) +{ + return (v & 0xffffff) << 0; +} +#define HOST1X_UCLASS_WAIT_SYNCPT_THRESH_F(v) \ + host1x_uclass_wait_syncpt_thresh_f(v) +static inline u32 host1x_uclass_wait_syncpt_base_r(void) +{ + return 0x9; +} +#define HOST1X_UCLASS_WAIT_SYNCPT_BASE \ + host1x_uclass_wait_syncpt_base_r() +static inline u32 host1x_uclass_wait_syncpt_base_indx_f(u32 v) +{ + return (v & 0xff) << 24; +} +#define HOST1X_UCLASS_WAIT_SYNCPT_BASE_INDX_F(v) \ + host1x_uclass_wait_syncpt_base_indx_f(v) +static inline u32 host1x_uclass_wait_syncpt_base_base_indx_f(u32 v) +{ + return (v & 0xff) << 16; +} +#define HOST1X_UCLASS_WAIT_SYNCPT_BASE_BASE_INDX_F(v) \ + host1x_uclass_wait_syncpt_base_base_indx_f(v) +static inline u32 host1x_uclass_wait_syncpt_base_offset_f(u32 v) +{ + return (v & 0xffff) << 0; +} +#define HOST1X_UCLASS_WAIT_SYNCPT_BASE_OFFSET_F(v) \ + host1x_uclass_wait_syncpt_base_offset_f(v) +static inline u32 host1x_uclass_load_syncpt_base_base_indx_f(u32 v) +{ + return (v & 0xff) << 24; +} +#define HOST1X_UCLASS_LOAD_SYNCPT_BASE_BASE_INDX_F(v) \ + host1x_uclass_load_syncpt_base_base_indx_f(v) +static inline u32 host1x_uclass_load_syncpt_base_value_f(u32 v) +{ + return (v & 0xffffff) << 0; +} +#define HOST1X_UCLASS_LOAD_SYNCPT_BASE_VALUE_F(v) \ + host1x_uclass_load_syncpt_base_value_f(v) +static inline u32 host1x_uclass_incr_syncpt_base_base_indx_f(u32 v) +{ + return (v & 0xff) << 24; +} +#define HOST1X_UCLASS_INCR_SYNCPT_BASE_BASE_INDX_F(v) \ + host1x_uclass_incr_syncpt_base_base_indx_f(v) +static inline u32 host1x_uclass_incr_syncpt_base_offset_f(u32 v) +{ + return (v & 0xffffff) << 0; +} +#define HOST1X_UCLASS_INCR_SYNCPT_BASE_OFFSET_F(v) \ + host1x_uclass_incr_syncpt_base_offset_f(v) +static inline u32 host1x_uclass_indoff_r(void) +{ + return 0x2d; +} +#define HOST1X_UCLASS_INDOFF \ + host1x_uclass_indoff_r() +static inline u32 host1x_uclass_indoff_indbe_f(u32 v) +{ + return (v & 0xf) << 28; +} +#define HOST1X_UCLASS_INDOFF_INDBE_F(v) \ + host1x_uclass_indoff_indbe_f(v) +static inline u32 host1x_uclass_indoff_autoinc_f(u32 v) +{ + return (v & 0x1) << 27; +} +#define HOST1X_UCLASS_INDOFF_AUTOINC_F(v) \ + host1x_uclass_indoff_autoinc_f(v) +static inline u32 host1x_uclass_indoff_indmodid_f(u32 v) +{ + return (v & 0xff) << 18; +} +#define HOST1X_UCLASS_INDOFF_INDMODID_F(v) \ + host1x_uclass_indoff_indmodid_f(v) +static inline u32 host1x_uclass_indoff_indroffset_f(u32 v) +{ + return (v & 0xffff) << 2; +} +#define HOST1X_UCLASS_INDOFF_INDROFFSET_F(v) \ + host1x_uclass_indoff_indroffset_f(v) +static inline u32 host1x_uclass_indoff_rwn_read_v(void) +{ + return 1; +} +#define HOST1X_UCLASS_INDOFF_INDROFFSET_F(v) \ + host1x_uclass_indoff_indroffset_f(v) + +#endif -- cgit v1.2.3-70-g09d2 From 9c78c4c38e2c1889f2514c3c76ef190b99f2524a Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 21 Oct 2013 13:37:31 +0800 Subject: gpu: host1x: Disable clock on probe failure Add a missing clk_disable_unprepare() before returning from the driver's .probe() function on error. Signed-off-by: Wei Yongjun Reviewed-by: Terje Bergstrom Signed-off-by: Thierry Reding --- drivers/gpu/host1x/dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/host1x/dev.c') diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index ab402a56284..80da003d63d 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -154,7 +154,7 @@ static int host1x_probe(struct platform_device *pdev) err = host1x_syncpt_init(host); if (err) { dev_err(&pdev->dev, "failed to initialize syncpts\n"); - return err; + goto fail_unprepare_disable; } err = host1x_intr_init(host, syncpt_irq); @@ -175,6 +175,8 @@ fail_deinit_intr: host1x_intr_deinit(host); fail_deinit_syncpt: host1x_syncpt_deinit(host); +fail_unprepare_disable: + clk_disable_unprepare(host->clk); return err; } -- cgit v1.2.3-70-g09d2