Added missing tegra files.HEADmaster

1 files changed, 145 insertions, 0 deletions

diff --git a/include/linux/nvhost.h b/include/linux/nvhost.h
new file mode 100644
index 00000000000..da5e1e6862c
--- /dev/null
+++ b/include/linux/nvhost.h
@@ -0,0 +1,145 @@
+/*
+ * include/linux/nvhost.h
+ *
+ * Tegra graphics host driver
+ *
+ * Copyright (c) 2009-2012, NVIDIA Corporation.
+ *
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __LINUX_NVHOST_H
+#define __LINUX_NVHOST_H
+
+#include <linux/device.h>
+#include <linux/types.h>
+
+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_clock {
+        char *name;
+        long default_rate;
+};
+
+enum nvhost_device_powerstate_t {
+        NVHOST_POWER_STATE_DEINIT,
+        NVHOST_POWER_STATE_RUNNING,
+        NVHOST_POWER_STATE_CLOCKGATED,
+        NVHOST_POWER_STATE_POWERGATED
+};
+
+struct nvhost_device {
+        const char      *name;          /* Device name */
+        struct device   dev;            /* Linux device struct */
+        int             id;             /* Separates clients of same hw */
+        int             index;          /* Hardware channel number */
+        u32             num_resources;  /* Number of resources following */
+        struct resource *resource;      /* Resources (IOMEM in particular) */
+        struct resource *reg_mem;
+        void __iomem    *aperture;      /* Iomem mapped to kernel */
+
+        u32             syncpts;        /* Bitfield of sync points used */
+        u32             waitbases;      /* Bit field of wait bases */
+        u32             modulemutexes;  /* Bit field of module mutexes */
+        u32             moduleid;       /* Module id for user space API */
+
+        u32             class;          /* Device class */
+        bool            exclusive;      /* True if only one user at a time */
+        bool            keepalive;      /* Do not power gate when opened */
+        bool            waitbasesync;   /* Force sync of wait bases */
+
+        int             powergate_ids[NVHOST_MODULE_MAX_POWERGATE_IDS];
+        bool            can_powergate;  /* True if module can be power gated */
+        int             clockgate_delay;/* Delay before clock gated */
+        int             powergate_delay;/* Delay before power gated */
+        struct nvhost_clock clocks[NVHOST_MODULE_MAX_CLOCKS];/* Clock names */
+
+        struct delayed_work powerstate_down;/* Power state management */
+        int             num_clks;       /* Number of clocks opened for dev */
+        struct clk      *clk[NVHOST_MODULE_MAX_CLOCKS];
+        struct mutex    lock;           /* Power management lock */
+        int             powerstate;     /* Current power state */
+        int             refcount;       /* Number of tasks active */
+        wait_queue_head_t idle_wq;      /* Work queue for idle */
+        struct list_head client_list;   /* List of clients and rate requests */
+
+        struct nvhost_channel *channel; /* Channel assigned for the module */
+
+        /* 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);
+};
+
+/* Register device to nvhost bus */
+extern int nvhost_device_register(struct nvhost_device *);
+
+/* Deregister device from nvhost bus */
+extern void nvhost_device_unregister(struct nvhost_device *);
+
+extern struct bus_type nvhost_bus_type;
+
+struct nvhost_driver {
+        int (*probe)(struct nvhost_device *);
+        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;
+};
+
+extern int nvhost_driver_register(struct nvhost_driver *);
+extern void nvhost_driver_unregister(struct nvhost_driver *);
+extern struct resource *nvhost_get_resource(struct nvhost_device *,
+                unsigned int, unsigned int);
+extern int nvhost_get_irq(struct nvhost_device *, unsigned int);
+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_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)
+{
+        return (_dev->dev.parent) ? \
+                ((struct nvhost_master *) dev_get_drvdata(_dev->dev.parent)) : \
+                ((struct nvhost_master *) dev_get_drvdata(&(_dev->dev)));
+}
+
+int nvhost_bus_add_host(struct nvhost_master *host);
+
+#endif