diff options
Diffstat (limited to 'include/linux/nvhost.h')
| -rw-r--r-- | include/linux/nvhost.h | 126 |
1 files changed, 96 insertions, 30 deletions
diff --git a/include/linux/nvhost.h b/include/linux/nvhost.h index faa183d40d6d..cde63fa6abb7 100644 --- a/include/linux/nvhost.h +++ b/include/linux/nvhost.h @@ -3,7 +3,7 @@ * * Tegra graphics host driver * - * Copyright (c) 2009-2012, NVIDIA Corporation. + * Copyright (c) 2009-2012, NVIDIA Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -28,10 +28,44 @@ struct nvhost_master; -#define NVHOST_MODULE_MAX_CLOCKS 3 -#define NVHOST_MODULE_MAX_POWERGATE_IDS 2 -#define NVHOST_MODULE_NO_POWERGATE_IDS .powergate_ids = {-1, -1} -#define NVHOST_DEFAULT_CLOCKGATE_DELAY .clockgate_delay = 25 +struct nvhost_device_power_attr; + +#define NVHOST_MODULE_MAX_CLOCKS 3 +#define NVHOST_MODULE_MAX_POWERGATE_IDS 2 +#define NVHOST_MODULE_NO_POWERGATE_IDS .powergate_ids = {-1, -1} +#define NVHOST_DEFAULT_CLOCKGATE_DELAY .clockgate_delay = 25 +#define NVHOST_NAME_SIZE 24 +#define NVSYNCPT_INVALID (-1) + +/* FIXME: + * Sync point ids are now split into 2 files. + * 1 if this one and other is in + * drivers/video/tegra/host/host1x/host1x_syncpt.h + * So if someone decides to add new sync point in future + * please check both the header files + */ +#define NVSYNCPT_DISP0_A (8) +#define NVSYNCPT_DISP1_A (9) +#define NVSYNCPT_AVP_0 (10) +#define NVSYNCPT_DISP0_B (20) +#define NVSYNCPT_DISP1_B (21) +#define NVSYNCPT_DISP0_C (24) +#define NVSYNCPT_DISP1_C (25) +#define NVSYNCPT_VBLANK0 (26) +#define NVSYNCPT_VBLANK1 (27) +#define NVSYNCPT_DSI (31) + +enum nvhost_power_sysfs_attributes { + NVHOST_POWER_SYSFS_ATTRIB_CLOCKGATE_DELAY = 0, + NVHOST_POWER_SYSFS_ATTRIB_POWERGATE_DELAY, + NVHOST_POWER_SYSFS_ATTRIB_REFCOUNT, + NVHOST_POWER_SYSFS_ATTRIB_MAX +}; + +struct nvhost_device_id { + char name[NVHOST_NAME_SIZE]; + unsigned long version; +}; struct nvhost_clock { char *name; @@ -46,7 +80,8 @@ enum nvhost_device_powerstate_t { }; struct nvhost_device { - const char *name; /* Device name */ + const char *name; /* device name */ + int version; /* ip version number of device */ struct device dev; /* Linux device struct */ int id; /* Separates clients of same hw */ int index; /* Hardware channel number */ @@ -65,6 +100,7 @@ struct nvhost_device { bool keepalive; /* Do not power gate when opened */ bool waitbasesync; /* Force sync of wait bases */ bool powerup_reset; /* Do a reset after power un-gating */ + bool serialize; /* Serialize submits in the channel */ int powergate_ids[NVHOST_MODULE_MAX_POWERGATE_IDS]; bool can_powergate; /* True if module can be power gated */ @@ -82,26 +118,18 @@ struct nvhost_device { struct list_head client_list; /* List of clients and rate requests */ struct nvhost_channel *channel; /* Channel assigned for the module */ + struct kobject *power_kobj; /* kobject to hold power sysfs entries */ + struct nvhost_device_power_attr *power_attrib; /* sysfs attributes */ +}; - /* Allocates a context handler for the device */ - struct nvhost_hwctx_handler *(*alloc_hwctx_handler)(u32 syncpt, - u32 waitbase, struct nvhost_channel *ch); - /* Preparing for power off. Used for context save. */ - int (*prepare_poweroff)(struct nvhost_device *dev); - /* Finalize power on. Can be used for context restore. */ - void (*finalize_poweron)(struct nvhost_device *dev); - /* Device is busy. */ - void (*busy)(struct nvhost_device *); - /* Device is idle. */ - void (*idle)(struct nvhost_device *); - /* Device is going to be suspended */ - void (*suspend)(struct nvhost_device *); - /* Device is initialized */ - void (*init)(struct nvhost_device *dev); - /* Device is de-initialized. */ - void (*deinit)(struct nvhost_device *dev); +struct nvhost_device_power_attr { + struct nvhost_device *ndev; + struct kobj_attribute power_attr[NVHOST_POWER_SYSFS_ATTRIB_MAX]; }; +/* Register devices to nvhost bus */ +extern int nvhost_add_devices(struct nvhost_device **, int num); + /* Register device to nvhost bus */ extern int nvhost_device_register(struct nvhost_device *); @@ -111,12 +139,39 @@ extern void nvhost_device_unregister(struct nvhost_device *); extern struct bus_type nvhost_bus_type; struct nvhost_driver { - int (*probe)(struct nvhost_device *); + int (*probe)(struct nvhost_device *, struct nvhost_device_id *); int (*remove)(struct nvhost_device *); void (*shutdown)(struct nvhost_device *); int (*suspend)(struct nvhost_device *, pm_message_t state); int (*resume)(struct nvhost_device *); struct device_driver driver; + + struct nvhost_device_id *id_table; + + /* Finalize power on. Can be used for context restore. */ + void (*finalize_poweron)(struct nvhost_device *dev); + + /* Device is busy. */ + void (*busy)(struct nvhost_device *); + + /* Device is idle. */ + void (*idle)(struct nvhost_device *); + + /* Device is going to be suspended */ + void (*suspend_ndev)(struct nvhost_device *); + + /* Device is initialized */ + void (*init)(struct nvhost_device *dev); + + /* Device is de-initialized. */ + void (*deinit)(struct nvhost_device *dev); + + /* Preparing for power off. Used for context save. */ + int (*prepare_poweroff)(struct nvhost_device *dev); + + /* Allocates a context handler for the device */ + struct nvhost_hwctx_handler *(*alloc_hwctx_handler)(u32 syncpt, + u32 waitbase, struct nvhost_channel *ch); }; extern int nvhost_driver_register(struct nvhost_driver *); @@ -128,19 +183,30 @@ extern struct resource *nvhost_get_resource_byname(struct nvhost_device *, unsigned int, const char *); extern int nvhost_get_irq_byname(struct nvhost_device *, const char *); -#define to_nvhost_device(x) container_of((x), struct nvhost_device, dev) +#define to_nvhost_device(x) container_of((x), struct nvhost_device, dev) #define to_nvhost_driver(drv) (container_of((drv), struct nvhost_driver, \ driver)) #define nvhost_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev) #define nvhost_set_drvdata(_dev, data) dev_set_drvdata(&(_dev)->dev, (data)) -static inline struct nvhost_master *nvhost_get_host(struct nvhost_device *_dev) + +int nvhost_bus_add_host(struct nvhost_master *host); + +static inline struct nvhost_device *nvhost_get_parent(struct nvhost_device *_dev) { - return (_dev->dev.parent) ? \ - ((struct nvhost_master *) dev_get_drvdata(_dev->dev.parent)) : \ - ((struct nvhost_master *) dev_get_drvdata(&(_dev->dev))); + return _dev->dev.parent ? to_nvhost_device(_dev->dev.parent) : NULL; } -int nvhost_bus_add_host(struct nvhost_master *host); +/* public host1x power management APIs */ +bool nvhost_module_powered_ext(struct nvhost_device *dev); +void nvhost_module_busy_ext(struct nvhost_device *dev); +void nvhost_module_idle_ext(struct nvhost_device *dev); + +/* public host1x sync-point management APIs */ +u32 nvhost_syncpt_incr_max_ext(struct nvhost_device *dev, u32 id, u32 incrs); +void nvhost_syncpt_cpu_incr_ext(struct nvhost_device *dev, u32 id); +u32 nvhost_syncpt_read_ext(struct nvhost_device *dev, u32 id); +int nvhost_syncpt_wait_timeout_ext(struct nvhost_device *dev, u32 id, u32 thresh, + u32 timeout, u32 *value); #endif |