[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/include/drm/drmP.h b/ap/os/linux/linux-3.4.x/include/drm/drmP.h
new file mode 100644
index 0000000..dd73104
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/include/drm/drmP.h
@@ -0,0 +1,1778 @@
+/**
+ * \file drmP.h
+ * Private header for Direct Rendering Manager
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DRM_P_H_
+#define _DRM_P_H_
+
+#ifdef __KERNEL__
+#ifdef __alpha__
+/* add include of current.h so that "current" is defined
+ * before static inline funcs in wait.h. Doing this so we
+ * can build the DRM (part of PI DRI). 4/21/2000 S + B */
+#include <asm/current.h>
+#endif /* __alpha__ */
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/file.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/jiffies.h>
+#include <linux/dma-mapping.h>
+#include <linux/mm.h>
+#include <linux/cdev.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#if defined(__alpha__) || defined(__powerpc__)
+#include <asm/pgtable.h> /* For pte_wrprotect */
+#endif
+#include <asm/io.h>
+#include <asm/mman.h>
+#include <asm/uaccess.h>
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
+#include <linux/types.h>
+#include <linux/agp_backend.h>
+#endif
+#include <linux/workqueue.h>
+#include <linux/poll.h>
+#include <asm/pgalloc.h>
+#include "drm.h"
+
+#include <linux/idr.h>
+
+#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
+#define __OS_HAS_MTRR (defined(CONFIG_MTRR))
+
+struct module;
+
+struct drm_file;
+struct drm_device;
+
+#include "drm_os_linux.h"
+#include "drm_hashtab.h"
+#include "drm_mm.h"
+
+#define DRM_UT_CORE 0x01
+#define DRM_UT_DRIVER 0x02
+#define DRM_UT_KMS 0x04
+#define DRM_UT_PRIME 0x08
+/*
+ * Three debug levels are defined.
+ * drm_core, drm_driver, drm_kms
+ * drm_core level can be used in the generic drm code. For example:
+ * drm_ioctl, drm_mm, drm_memory
+ * The macro definition of DRM_DEBUG is used.
+ * DRM_DEBUG(fmt, args...)
+ * The debug info by using the DRM_DEBUG can be obtained by adding
+ * the boot option of "drm.debug=1".
+ *
+ * drm_driver level can be used in the specific drm driver. It is used
+ * to add the debug info related with the drm driver. For example:
+ * i915_drv, i915_dma, i915_gem, radeon_drv,
+ * The macro definition of DRM_DEBUG_DRIVER can be used.
+ * DRM_DEBUG_DRIVER(fmt, args...)
+ * The debug info by using the DRM_DEBUG_DRIVER can be obtained by
+ * adding the boot option of "drm.debug=0x02"
+ *
+ * drm_kms level can be used in the KMS code related with specific drm driver.
+ * It is used to add the debug info related with KMS mode. For example:
+ * the connector/crtc ,
+ * The macro definition of DRM_DEBUG_KMS can be used.
+ * DRM_DEBUG_KMS(fmt, args...)
+ * The debug info by using the DRM_DEBUG_KMS can be obtained by
+ * adding the boot option of "drm.debug=0x04"
+ *
+ * If we add the boot option of "drm.debug=0x06", we can get the debug info by
+ * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
+ * If we add the boot option of "drm.debug=0x05", we can get the debug info by
+ * using the DRM_DEBUG_KMS and DRM_DEBUG.
+ */
+
+extern __printf(4, 5)
+void drm_ut_debug_printk(unsigned int request_level,
+ const char *prefix,
+ const char *function_name,
+ const char *format, ...);
+extern __printf(2, 3)
+int drm_err(const char *func, const char *format, ...);
+
+/***********************************************************************/
+/** \name DRM template customization defaults */
+/*@{*/
+
+/* driver capabilities and requirements mask */
+#define DRIVER_USE_AGP 0x1
+#define DRIVER_REQUIRE_AGP 0x2
+#define DRIVER_USE_MTRR 0x4
+#define DRIVER_PCI_DMA 0x8
+#define DRIVER_SG 0x10
+#define DRIVER_HAVE_DMA 0x20
+#define DRIVER_HAVE_IRQ 0x40
+#define DRIVER_IRQ_SHARED 0x80
+#define DRIVER_IRQ_VBL 0x100
+#define DRIVER_DMA_QUEUE 0x200
+#define DRIVER_FB_DMA 0x400
+#define DRIVER_IRQ_VBL2 0x800
+#define DRIVER_GEM 0x1000
+#define DRIVER_MODESET 0x2000
+#define DRIVER_PRIME 0x4000
+
+#define DRIVER_BUS_PCI 0x1
+#define DRIVER_BUS_PLATFORM 0x2
+#define DRIVER_BUS_USB 0x3
+
+/***********************************************************************/
+/** \name Begin the DRM... */
+/*@{*/
+
+#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
+ also include looping detection. */
+
+#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
+#define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
+#define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
+#define DRM_LOOPING_LIMIT 5000000
+#define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
+#define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
+
+#define DRM_FLAG_DEBUG 0x01
+
+#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
+#define DRM_MAP_HASH_OFFSET 0x10000000
+
+/*@}*/
+
+/***********************************************************************/
+/** \name Macros to make printk easier */
+/*@{*/
+
+/**
+ * Error output.
+ *
+ * \param fmt printf() like format string.
+ * \param arg arguments
+ */
+#define DRM_ERROR(fmt, ...) \
+ drm_err(__func__, fmt, ##__VA_ARGS__)
+
+#define DRM_INFO(fmt, ...) \
+ printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
+
+/**
+ * Debug output.
+ *
+ * \param fmt printf() like format string.
+ * \param arg arguments
+ */
+#if DRM_DEBUG_CODE
+#define DRM_DEBUG(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME, \
+ __func__, fmt, ##args); \
+ } while (0)
+
+#define DRM_DEBUG_DRIVER(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME, \
+ __func__, fmt, ##args); \
+ } while (0)
+#define DRM_DEBUG_KMS(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, \
+ __func__, fmt, ##args); \
+ } while (0)
+#define DRM_DEBUG_PRIME(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_PRIME, DRM_NAME, \
+ __func__, fmt, ##args); \
+ } while (0)
+#define DRM_LOG(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_CORE, NULL, \
+ NULL, fmt, ##args); \
+ } while (0)
+#define DRM_LOG_KMS(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_KMS, NULL, \
+ NULL, fmt, ##args); \
+ } while (0)
+#define DRM_LOG_MODE(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_MODE, NULL, \
+ NULL, fmt, ##args); \
+ } while (0)
+#define DRM_LOG_DRIVER(fmt, args...) \
+ do { \
+ drm_ut_debug_printk(DRM_UT_DRIVER, NULL, \
+ NULL, fmt, ##args); \
+ } while (0)
+#else
+#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
+#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
+#define DRM_DEBUG_PRIME(fmt, args...) do { } while (0)
+#define DRM_DEBUG(fmt, arg...) do { } while (0)
+#define DRM_LOG(fmt, arg...) do { } while (0)
+#define DRM_LOG_KMS(fmt, args...) do { } while (0)
+#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
+#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
+
+#endif
+
+/*@}*/
+
+/***********************************************************************/
+/** \name Internal types and structures */
+/*@{*/
+
+#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
+
+#define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
+#define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
+
+#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
+
+/**
+ * Test that the hardware lock is held by the caller, returning otherwise.
+ *
+ * \param dev DRM device.
+ * \param filp file pointer of the caller.
+ */
+#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
+do { \
+ if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
+ _file_priv->master->lock.file_priv != _file_priv) { \
+ DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
+ __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
+ _file_priv->master->lock.file_priv, _file_priv); \
+ return -EINVAL; \
+ } \
+} while (0)
+
+/**
+ * Ioctl function type.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private pointer.
+ * \param cmd command.
+ * \param arg argument.
+ */
+typedef int drm_ioctl_t(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
+ unsigned long arg);
+
+#define DRM_IOCTL_NR(n) _IOC_NR(n)
+#define DRM_MAJOR 226
+
+#define DRM_AUTH 0x1
+#define DRM_MASTER 0x2
+#define DRM_ROOT_ONLY 0x4
+#define DRM_CONTROL_ALLOW 0x8
+#define DRM_UNLOCKED 0x10
+
+struct drm_ioctl_desc {
+ unsigned int cmd;
+ int flags;
+ drm_ioctl_t *func;
+ unsigned int cmd_drv;
+};
+
+/**
+ * Creates a driver or general drm_ioctl_desc array entry for the given
+ * ioctl, for use by drm_ioctl().
+ */
+
+#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
+ [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl}
+
+struct drm_magic_entry {
+ struct list_head head;
+ struct drm_hash_item hash_item;
+ struct drm_file *priv;
+};
+
+struct drm_vma_entry {
+ struct list_head head;
+ struct vm_area_struct *vma;
+ pid_t pid;
+};
+
+/**
+ * DMA buffer.
+ */
+struct drm_buf {
+ int idx; /**< Index into master buflist */
+ int total; /**< Buffer size */
+ int order; /**< log-base-2(total) */
+ int used; /**< Amount of buffer in use (for DMA) */
+ unsigned long offset; /**< Byte offset (used internally) */
+ void *address; /**< Address of buffer */
+ unsigned long bus_address; /**< Bus address of buffer */
+ struct drm_buf *next; /**< Kernel-only: used for free list */
+ __volatile__ int waiting; /**< On kernel DMA queue */
+ __volatile__ int pending; /**< On hardware DMA queue */
+ wait_queue_head_t dma_wait; /**< Processes waiting */
+ struct drm_file *file_priv; /**< Private of holding file descr */
+ int context; /**< Kernel queue for this buffer */
+ int while_locked; /**< Dispatch this buffer while locked */
+ enum {
+ DRM_LIST_NONE = 0,
+ DRM_LIST_FREE = 1,
+ DRM_LIST_WAIT = 2,
+ DRM_LIST_PEND = 3,
+ DRM_LIST_PRIO = 4,
+ DRM_LIST_RECLAIM = 5
+ } list; /**< Which list we're on */
+
+ int dev_priv_size; /**< Size of buffer private storage */
+ void *dev_private; /**< Per-buffer private storage */
+};
+
+/** bufs is one longer than it has to be */
+struct drm_waitlist {
+ int count; /**< Number of possible buffers */
+ struct drm_buf **bufs; /**< List of pointers to buffers */
+ struct drm_buf **rp; /**< Read pointer */
+ struct drm_buf **wp; /**< Write pointer */
+ struct drm_buf **end; /**< End pointer */
+ spinlock_t read_lock;
+ spinlock_t write_lock;
+};
+
+struct drm_freelist {
+ int initialized; /**< Freelist in use */
+ atomic_t count; /**< Number of free buffers */
+ struct drm_buf *next; /**< End pointer */
+
+ wait_queue_head_t waiting; /**< Processes waiting on free bufs */
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+ atomic_t wfh; /**< If waiting for high mark */
+ spinlock_t lock;
+};
+
+typedef struct drm_dma_handle {
+ dma_addr_t busaddr;
+ void *vaddr;
+ size_t size;
+} drm_dma_handle_t;
+
+/**
+ * Buffer entry. There is one of this for each buffer size order.
+ */
+struct drm_buf_entry {
+ int buf_size; /**< size */
+ int buf_count; /**< number of buffers */
+ struct drm_buf *buflist; /**< buffer list */
+ int seg_count;
+ int page_order;
+ struct drm_dma_handle **seglist;
+
+ struct drm_freelist freelist;
+};
+
+/* Event queued up for userspace to read */
+struct drm_pending_event {
+ struct drm_event *event;
+ struct list_head link;
+ struct drm_file *file_priv;
+ pid_t pid; /* pid of requester, no guarantee it's valid by the time
+ we deliver the event, for tracing only */
+ void (*destroy)(struct drm_pending_event *event);
+};
+
+/* initial implementaton using a linked list - todo hashtab */
+struct drm_prime_file_private {
+ struct list_head head;
+ struct mutex lock;
+};
+
+/** File private data */
+struct drm_file {
+ int authenticated;
+ pid_t pid;
+ uid_t uid;
+ drm_magic_t magic;
+ unsigned long ioctl_count;
+ struct list_head lhead;
+ struct drm_minor *minor;
+ unsigned long lock_count;
+
+ /** Mapping of mm object handles to object pointers. */
+ struct idr object_idr;
+ /** Lock for synchronization of access to object_idr. */
+ spinlock_t table_lock;
+
+ struct file *filp;
+ void *driver_priv;
+
+ int is_master; /* this file private is a master for a minor */
+ struct drm_master *master; /* master this node is currently associated with
+ N.B. not always minor->master */
+ struct list_head fbs;
+
+ wait_queue_head_t event_wait;
+ struct list_head event_list;
+ int event_space;
+
+ struct drm_prime_file_private prime;
+};
+
+/** Wait queue */
+struct drm_queue {
+ atomic_t use_count; /**< Outstanding uses (+1) */
+ atomic_t finalization; /**< Finalization in progress */
+ atomic_t block_count; /**< Count of processes waiting */
+ atomic_t block_read; /**< Queue blocked for reads */
+ wait_queue_head_t read_queue; /**< Processes waiting on block_read */
+ atomic_t block_write; /**< Queue blocked for writes */
+ wait_queue_head_t write_queue; /**< Processes waiting on block_write */
+ atomic_t total_queued; /**< Total queued statistic */
+ atomic_t total_flushed; /**< Total flushes statistic */
+ atomic_t total_locks; /**< Total locks statistics */
+ enum drm_ctx_flags flags; /**< Context preserving and 2D-only */
+ struct drm_waitlist waitlist; /**< Pending buffers */
+ wait_queue_head_t flush_queue; /**< Processes waiting until flush */
+};
+
+/**
+ * Lock data.
+ */
+struct drm_lock_data {
+ struct drm_hw_lock *hw_lock; /**< Hardware lock */
+ /** Private of lock holder's file (NULL=kernel) */
+ struct drm_file *file_priv;
+ wait_queue_head_t lock_queue; /**< Queue of blocked processes */
+ unsigned long lock_time; /**< Time of last lock in jiffies */
+ spinlock_t spinlock;
+ uint32_t kernel_waiters;
+ uint32_t user_waiters;
+ int idle_has_lock;
+};
+
+/**
+ * DMA data.
+ */
+struct drm_device_dma {
+
+ struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
+ int buf_count; /**< total number of buffers */
+ struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
+ int seg_count;
+ int page_count; /**< number of pages */
+ unsigned long *pagelist; /**< page list */
+ unsigned long byte_count;
+ enum {
+ _DRM_DMA_USE_AGP = 0x01,
+ _DRM_DMA_USE_SG = 0x02,
+ _DRM_DMA_USE_FB = 0x04,
+ _DRM_DMA_USE_PCI_RO = 0x08
+ } flags;
+
+};
+
+/**
+ * AGP memory entry. Stored as a doubly linked list.
+ */
+struct drm_agp_mem {
+ unsigned long handle; /**< handle */
+ DRM_AGP_MEM *memory;
+ unsigned long bound; /**< address */
+ int pages;
+ struct list_head head;
+};
+
+/**
+ * AGP data.
+ *
+ * \sa drm_agp_init() and drm_device::agp.
+ */
+struct drm_agp_head {
+ DRM_AGP_KERN agp_info; /**< AGP device information */
+ struct list_head memory;
+ unsigned long mode; /**< AGP mode */
+ struct agp_bridge_data *bridge;
+ int enabled; /**< whether the AGP bus as been enabled */
+ int acquired; /**< whether the AGP device has been acquired */
+ unsigned long base;
+ int agp_mtrr;
+ int cant_use_aperture;
+ unsigned long page_mask;
+};
+
+/**
+ * Scatter-gather memory.
+ */
+struct drm_sg_mem {
+ unsigned long handle;
+ void *virtual;
+ int pages;
+ struct page **pagelist;
+ dma_addr_t *busaddr;
+};
+
+struct drm_sigdata {
+ int context;
+ struct drm_hw_lock *lock;
+};
+
+
+/**
+ * Kernel side of a mapping
+ */
+struct drm_local_map {
+ resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
+ unsigned long size; /**< Requested physical size (bytes) */
+ enum drm_map_type type; /**< Type of memory to map */
+ enum drm_map_flags flags; /**< Flags */
+ void *handle; /**< User-space: "Handle" to pass to mmap() */
+ /**< Kernel-space: kernel-virtual address */
+ int mtrr; /**< MTRR slot used */
+};
+
+typedef struct drm_local_map drm_local_map_t;
+
+/**
+ * Mappings list
+ */
+struct drm_map_list {
+ struct list_head head; /**< list head */
+ struct drm_hash_item hash;
+ struct drm_local_map *map; /**< mapping */
+ uint64_t user_token;
+ struct drm_master *master;
+ struct drm_mm_node *file_offset_node; /**< fake offset */
+};
+
+/**
+ * Context handle list
+ */
+struct drm_ctx_list {
+ struct list_head head; /**< list head */
+ drm_context_t handle; /**< context handle */
+ struct drm_file *tag; /**< associated fd private data */
+};
+
+/* location of GART table */
+#define DRM_ATI_GART_MAIN 1
+#define DRM_ATI_GART_FB 2
+
+#define DRM_ATI_GART_PCI 1
+#define DRM_ATI_GART_PCIE 2
+#define DRM_ATI_GART_IGP 3
+
+struct drm_ati_pcigart_info {
+ int gart_table_location;
+ int gart_reg_if;
+ void *addr;
+ dma_addr_t bus_addr;
+ dma_addr_t table_mask;
+ struct drm_dma_handle *table_handle;
+ struct drm_local_map mapping;
+ int table_size;
+};
+
+/**
+ * GEM specific mm private for tracking GEM objects
+ */
+struct drm_gem_mm {
+ struct drm_mm offset_manager; /**< Offset mgmt for buffer objects */
+ struct drm_open_hash offset_hash; /**< User token hash table for maps */
+};
+
+/**
+ * This structure defines the drm_mm memory object, which will be used by the
+ * DRM for its buffer objects.
+ */
+struct drm_gem_object {
+ /** Reference count of this object */
+ struct kref refcount;
+
+ /** Handle count of this object. Each handle also holds a reference */
+ atomic_t handle_count; /* number of handles on this object */
+
+ /** Related drm device */
+ struct drm_device *dev;
+
+ /** File representing the shmem storage */
+ struct file *filp;
+
+ /* Mapping info for this object */
+ struct drm_map_list map_list;
+
+ /**
+ * Size of the object, in bytes. Immutable over the object's
+ * lifetime.
+ */
+ size_t size;
+
+ /**
+ * Global name for this object, starts at 1. 0 means unnamed.
+ * Access is covered by the object_name_lock in the related drm_device
+ */
+ int name;
+
+ /**
+ * Memory domains. These monitor which caches contain read/write data
+ * related to the object. When transitioning from one set of domains
+ * to another, the driver is called to ensure that caches are suitably
+ * flushed and invalidated
+ */
+ uint32_t read_domains;
+ uint32_t write_domain;
+
+ /**
+ * While validating an exec operation, the
+ * new read/write domain values are computed here.
+ * They will be transferred to the above values
+ * at the point that any cache flushing occurs
+ */
+ uint32_t pending_read_domains;
+ uint32_t pending_write_domain;
+
+ void *driver_private;
+
+ /* dma buf exported from this GEM object */
+ struct dma_buf *export_dma_buf;
+
+ /* dma buf attachment backing this object */
+ struct dma_buf_attachment *import_attach;
+};
+
+#include "drm_crtc.h"
+
+/* per-master structure */
+struct drm_master {
+
+ struct kref refcount; /* refcount for this master */
+
+ struct list_head head; /**< each minor contains a list of masters */
+ struct drm_minor *minor; /**< link back to minor we are a master for */
+
+ char *unique; /**< Unique identifier: e.g., busid */
+ int unique_len; /**< Length of unique field */
+ int unique_size; /**< amount allocated */
+
+ int blocked; /**< Blocked due to VC switch? */
+
+ /** \name Authentication */
+ /*@{ */
+ struct drm_open_hash magiclist;
+ struct list_head magicfree;
+ /*@} */
+
+ struct drm_lock_data lock; /**< Information on hardware lock */
+
+ void *driver_priv; /**< Private structure for driver to use */
+};
+
+/* Size of ringbuffer for vblank timestamps. Just double-buffer
+ * in initial implementation.
+ */
+#define DRM_VBLANKTIME_RBSIZE 2
+
+/* Flags and return codes for get_vblank_timestamp() driver function. */
+#define DRM_CALLED_FROM_VBLIRQ 1
+#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
+#define DRM_VBLANKTIME_INVBL (1 << 1)
+
+/* get_scanout_position() return flags */
+#define DRM_SCANOUTPOS_VALID (1 << 0)
+#define DRM_SCANOUTPOS_INVBL (1 << 1)
+#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
+
+struct drm_bus {
+ int bus_type;
+ int (*get_irq)(struct drm_device *dev);
+ const char *(*get_name)(struct drm_device *dev);
+ int (*set_busid)(struct drm_device *dev, struct drm_master *master);
+ int (*set_unique)(struct drm_device *dev, struct drm_master *master,
+ struct drm_unique *unique);
+ int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
+ /* hooks that are for PCI */
+ int (*agp_init)(struct drm_device *dev);
+
+};
+
+/**
+ * DRM driver structure. This structure represent the common code for
+ * a family of cards. There will one drm_device for each card present
+ * in this family
+ */
+struct drm_driver {
+ int (*load) (struct drm_device *, unsigned long flags);
+ int (*firstopen) (struct drm_device *);
+ int (*open) (struct drm_device *, struct drm_file *);
+ void (*preclose) (struct drm_device *, struct drm_file *file_priv);
+ void (*postclose) (struct drm_device *, struct drm_file *);
+ void (*lastclose) (struct drm_device *);
+ int (*unload) (struct drm_device *);
+ int (*suspend) (struct drm_device *, pm_message_t state);
+ int (*resume) (struct drm_device *);
+ int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
+ int (*dma_quiescent) (struct drm_device *);
+ int (*context_dtor) (struct drm_device *dev, int context);
+
+ /**
+ * get_vblank_counter - get raw hardware vblank counter
+ * @dev: DRM device
+ * @crtc: counter to fetch
+ *
+ * Driver callback for fetching a raw hardware vblank counter
+ * for @crtc. If a device doesn't have a hardware counter, the
+ * driver can simply return the value of drm_vblank_count and
+ * make the enable_vblank() and disable_vblank() hooks into no-ops,
+ * leaving interrupts enabled at all times.
+ *
+ * Wraparound handling and loss of events due to modesetting is dealt
+ * with in the DRM core code.
+ *
+ * RETURNS
+ * Raw vblank counter value.
+ */
+ u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
+
+ /**
+ * enable_vblank - enable vblank interrupt events
+ * @dev: DRM device
+ * @crtc: which irq to enable
+ *
+ * Enable vblank interrupts for @crtc. If the device doesn't have
+ * a hardware vblank counter, this routine should be a no-op, since
+ * interrupts will have to stay on to keep the count accurate.
+ *
+ * RETURNS
+ * Zero on success, appropriate errno if the given @crtc's vblank
+ * interrupt cannot be enabled.
+ */
+ int (*enable_vblank) (struct drm_device *dev, int crtc);
+
+ /**
+ * disable_vblank - disable vblank interrupt events
+ * @dev: DRM device
+ * @crtc: which irq to enable
+ *
+ * Disable vblank interrupts for @crtc. If the device doesn't have
+ * a hardware vblank counter, this routine should be a no-op, since
+ * interrupts will have to stay on to keep the count accurate.
+ */
+ void (*disable_vblank) (struct drm_device *dev, int crtc);
+
+ /**
+ * Called by \c drm_device_is_agp. Typically used to determine if a
+ * card is really attached to AGP or not.
+ *
+ * \param dev DRM device handle
+ *
+ * \returns
+ * One of three values is returned depending on whether or not the
+ * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
+ * (return of 1), or may or may not be AGP (return of 2).
+ */
+ int (*device_is_agp) (struct drm_device *dev);
+
+ /**
+ * Called by vblank timestamping code.
+ *
+ * Return the current display scanout position from a crtc.
+ *
+ * \param dev DRM device.
+ * \param crtc Id of the crtc to query.
+ * \param *vpos Target location for current vertical scanout position.
+ * \param *hpos Target location for current horizontal scanout position.
+ *
+ * Returns vpos as a positive number while in active scanout area.
+ * Returns vpos as a negative number inside vblank, counting the number
+ * of scanlines to go until end of vblank, e.g., -1 means "one scanline
+ * until start of active scanout / end of vblank."
+ *
+ * \return Flags, or'ed together as follows:
+ *
+ * DRM_SCANOUTPOS_VALID = Query successful.
+ * DRM_SCANOUTPOS_INVBL = Inside vblank.
+ * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
+ * this flag means that returned position may be offset by a constant
+ * but unknown small number of scanlines wrt. real scanout position.
+ *
+ */
+ int (*get_scanout_position) (struct drm_device *dev, int crtc,
+ int *vpos, int *hpos);
+
+ /**
+ * Called by \c drm_get_last_vbltimestamp. Should return a precise
+ * timestamp when the most recent VBLANK interval ended or will end.
+ *
+ * Specifically, the timestamp in @vblank_time should correspond as
+ * closely as possible to the time when the first video scanline of
+ * the video frame after the end of VBLANK will start scanning out,
+ * the time immediately after end of the VBLANK interval. If the
+ * @crtc is currently inside VBLANK, this will be a time in the future.
+ * If the @crtc is currently scanning out a frame, this will be the
+ * past start time of the current scanout. This is meant to adhere
+ * to the OpenML OML_sync_control extension specification.
+ *
+ * \param dev dev DRM device handle.
+ * \param crtc crtc for which timestamp should be returned.
+ * \param *max_error Maximum allowable timestamp error in nanoseconds.
+ * Implementation should strive to provide timestamp
+ * with an error of at most *max_error nanoseconds.
+ * Returns true upper bound on error for timestamp.
+ * \param *vblank_time Target location for returned vblank timestamp.
+ * \param flags 0 = Defaults, no special treatment needed.
+ * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank
+ * irq handler. Some drivers need to apply some workarounds
+ * for gpu-specific vblank irq quirks if flag is set.
+ *
+ * \returns
+ * Zero if timestamping isn't supported in current display mode or a
+ * negative number on failure. A positive status code on success,
+ * which describes how the vblank_time timestamp was computed.
+ */
+ int (*get_vblank_timestamp) (struct drm_device *dev, int crtc,
+ int *max_error,
+ struct timeval *vblank_time,
+ unsigned flags);
+
+ /* these have to be filled in */
+
+ irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
+ void (*irq_preinstall) (struct drm_device *dev);
+ int (*irq_postinstall) (struct drm_device *dev);
+ void (*irq_uninstall) (struct drm_device *dev);
+ void (*reclaim_buffers) (struct drm_device *dev,
+ struct drm_file * file_priv);
+ void (*reclaim_buffers_locked) (struct drm_device *dev,
+ struct drm_file *file_priv);
+ void (*reclaim_buffers_idlelocked) (struct drm_device *dev,
+ struct drm_file *file_priv);
+ void (*set_version) (struct drm_device *dev,
+ struct drm_set_version *sv);
+
+ /* Master routines */
+ int (*master_create)(struct drm_device *dev, struct drm_master *master);
+ void (*master_destroy)(struct drm_device *dev, struct drm_master *master);
+ /**
+ * master_set is called whenever the minor master is set.
+ * master_drop is called whenever the minor master is dropped.
+ */
+
+ int (*master_set)(struct drm_device *dev, struct drm_file *file_priv,
+ bool from_open);
+ void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv,
+ bool from_release);
+
+ int (*debugfs_init)(struct drm_minor *minor);
+ void (*debugfs_cleanup)(struct drm_minor *minor);
+
+ /**
+ * Driver-specific constructor for drm_gem_objects, to set up
+ * obj->driver_private.
+ *
+ * Returns 0 on success.
+ */
+ int (*gem_init_object) (struct drm_gem_object *obj);
+ void (*gem_free_object) (struct drm_gem_object *obj);
+ int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
+ void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
+
+ /* prime: */
+ /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
+ int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
+ uint32_t handle, uint32_t flags, int *prime_fd);
+ /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
+ int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
+ int prime_fd, uint32_t *handle);
+ /* export GEM -> dmabuf */
+ struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
+ struct drm_gem_object *obj, int flags);
+ /* import dmabuf -> GEM */
+ struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
+ struct dma_buf *dma_buf);
+
+ /* vga arb irq handler */
+ void (*vgaarb_irq)(struct drm_device *dev, bool state);
+
+ /* dumb alloc support */
+ int (*dumb_create)(struct drm_file *file_priv,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args);
+ int (*dumb_map_offset)(struct drm_file *file_priv,
+ struct drm_device *dev, uint32_t handle,
+ uint64_t *offset);
+ int (*dumb_destroy)(struct drm_file *file_priv,
+ struct drm_device *dev,
+ uint32_t handle);
+
+ /* Driver private ops for this object */
+ struct vm_operations_struct *gem_vm_ops;
+
+ int major;
+ int minor;
+ int patchlevel;
+ char *name;
+ char *desc;
+ char *date;
+
+ u32 driver_features;
+ int dev_priv_size;
+ struct drm_ioctl_desc *ioctls;
+ int num_ioctls;
+ const struct file_operations *fops;
+ union {
+ struct pci_driver *pci;
+ struct platform_device *platform_device;
+ struct usb_driver *usb;
+ } kdriver;
+ struct drm_bus *bus;
+
+ /* List of devices hanging off this driver */
+ struct list_head device_list;
+};
+
+#define DRM_MINOR_UNASSIGNED 0
+#define DRM_MINOR_LEGACY 1
+#define DRM_MINOR_CONTROL 2
+#define DRM_MINOR_RENDER 3
+
+
+/**
+ * debugfs node list. This structure represents a debugfs file to
+ * be created by the drm core
+ */
+struct drm_debugfs_list {
+ const char *name; /** file name */
+ int (*show)(struct seq_file*, void*); /** show callback */
+ u32 driver_features; /**< Required driver features for this entry */
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_debugfs_node {
+ struct list_head list;
+ struct drm_minor *minor;
+ struct drm_debugfs_list *debugfs_ent;
+ struct dentry *dent;
+};
+
+/**
+ * Info file list entry. This structure represents a debugfs or proc file to
+ * be created by the drm core
+ */
+struct drm_info_list {
+ const char *name; /** file name */
+ int (*show)(struct seq_file*, void*); /** show callback */
+ u32 driver_features; /**< Required driver features for this entry */
+ void *data;
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_info_node {
+ struct list_head list;
+ struct drm_minor *minor;
+ struct drm_info_list *info_ent;
+ struct dentry *dent;
+};
+
+/**
+ * DRM minor structure. This structure represents a drm minor number.
+ */
+struct drm_minor {
+ int index; /**< Minor device number */
+ int type; /**< Control or render */
+ dev_t device; /**< Device number for mknod */
+ struct device kdev; /**< Linux device */
+ struct drm_device *dev;
+
+ struct proc_dir_entry *proc_root; /**< proc directory entry */
+ struct drm_info_node proc_nodes;
+ struct dentry *debugfs_root;
+
+ struct list_head debugfs_list;
+ struct mutex debugfs_lock; /* Protects debugfs_list. */
+
+ struct drm_master *master; /* currently active master for this node */
+ struct list_head master_list;
+ struct drm_mode_group mode_group;
+};
+
+/* mode specified on the command line */
+struct drm_cmdline_mode {
+ bool specified;
+ bool refresh_specified;
+ bool bpp_specified;
+ int xres, yres;
+ int bpp;
+ int refresh;
+ bool rb;
+ bool interlace;
+ bool cvt;
+ bool margins;
+ enum drm_connector_force force;
+};
+
+
+struct drm_pending_vblank_event {
+ struct drm_pending_event base;
+ int pipe;
+ struct drm_event_vblank event;
+};
+
+/**
+ * DRM device structure. This structure represent a complete card that
+ * may contain multiple heads.
+ */
+struct drm_device {
+ struct list_head driver_item; /**< list of devices per driver */
+ char *devname; /**< For /proc/interrupts */
+ int if_version; /**< Highest interface version set */
+
+ /** \name Locks */
+ /*@{ */
+ spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
+ struct mutex struct_mutex; /**< For others */
+ /*@} */
+
+ /** \name Usage Counters */
+ /*@{ */
+ int open_count; /**< Outstanding files open */
+ atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
+ atomic_t vma_count; /**< Outstanding vma areas open */
+ int buf_use; /**< Buffers in use -- cannot alloc */
+ atomic_t buf_alloc; /**< Buffer allocation in progress */
+ /*@} */
+
+ /** \name Performance counters */
+ /*@{ */
+ unsigned long counters;
+ enum drm_stat_type types[15];
+ atomic_t counts[15];
+ /*@} */
+
+ struct list_head filelist;
+
+ /** \name Memory management */
+ /*@{ */
+ struct list_head maplist; /**< Linked list of regions */
+ int map_count; /**< Number of mappable regions */
+ struct drm_open_hash map_hash; /**< User token hash table for maps */
+
+ /** \name Context handle management */
+ /*@{ */
+ struct list_head ctxlist; /**< Linked list of context handles */
+ int ctx_count; /**< Number of context handles */
+ struct mutex ctxlist_mutex; /**< For ctxlist */
+
+ struct idr ctx_idr;
+
+ struct list_head vmalist; /**< List of vmas (for debugging) */
+
+ /*@} */
+
+ /** \name DMA queues (contexts) */
+ /*@{ */
+ int queue_count; /**< Number of active DMA queues */
+ int queue_reserved; /**< Number of reserved DMA queues */
+ int queue_slots; /**< Actual length of queuelist */
+ struct drm_queue **queuelist; /**< Vector of pointers to DMA queues */
+ struct drm_device_dma *dma; /**< Optional pointer for DMA support */
+ /*@} */
+
+ /** \name Context support */
+ /*@{ */
+ int irq_enabled; /**< True if irq handler is enabled */
+ __volatile__ long context_flag; /**< Context swapping flag */
+ __volatile__ long interrupt_flag; /**< Interruption handler flag */
+ __volatile__ long dma_flag; /**< DMA dispatch flag */
+ wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
+ int last_checked; /**< Last context checked for DMA */
+ int last_context; /**< Last current context */
+ unsigned long last_switch; /**< jiffies at last context switch */
+ /*@} */
+
+ struct work_struct work;
+ /** \name VBLANK IRQ support */
+ /*@{ */
+
+ /*
+ * At load time, disabling the vblank interrupt won't be allowed since
+ * old clients may not call the modeset ioctl and therefore misbehave.
+ * Once the modeset ioctl *has* been called though, we can safely
+ * disable them when unused.
+ */
+ int vblank_disable_allowed;
+
+ wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
+ atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
+ struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
+ spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
+ spinlock_t vbl_lock;
+ atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
+ u32 *last_vblank; /* protected by dev->vbl_lock, used */
+ /* for wraparound handling */
+ int *vblank_enabled; /* so we don't call enable more than
+ once per disable */
+ int *vblank_inmodeset; /* Display driver is setting mode */
+ u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
+ struct timer_list vblank_disable_timer;
+
+ u32 max_vblank_count; /**< size of vblank counter register */
+
+ /**
+ * List of events
+ */
+ struct list_head vblank_event_list;
+ spinlock_t event_lock;
+
+ /*@} */
+ cycles_t ctx_start;
+ cycles_t lck_start;
+
+ struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
+ wait_queue_head_t buf_readers; /**< Processes waiting to read */
+ wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
+
+ struct drm_agp_head *agp; /**< AGP data */
+
+ struct device *dev; /**< Device structure */
+ struct pci_dev *pdev; /**< PCI device structure */
+ int pci_vendor; /**< PCI vendor id */
+ int pci_device; /**< PCI device id */
+#ifdef __alpha__
+ struct pci_controller *hose;
+#endif
+
+ struct platform_device *platformdev; /**< Platform device struture */
+ struct usb_device *usbdev;
+
+ struct drm_sg_mem *sg; /**< Scatter gather memory */
+ unsigned int num_crtcs; /**< Number of CRTCs on this device */
+ void *dev_private; /**< device private data */
+ void *mm_private;
+ struct address_space *dev_mapping;
+ struct drm_sigdata sigdata; /**< For block_all_signals */
+ sigset_t sigmask;
+
+ struct drm_driver *driver;
+ struct drm_local_map *agp_buffer_map;
+ unsigned int agp_buffer_token;
+ struct drm_minor *control; /**< Control node for card */
+ struct drm_minor *primary; /**< render type primary screen head */
+
+ struct drm_mode_config mode_config; /**< Current mode config */
+
+ /** \name GEM information */
+ /*@{ */
+ spinlock_t object_name_lock;
+ struct idr object_name_idr;
+ /*@} */
+ int switch_power_state;
+
+ atomic_t unplugged; /* device has been unplugged or gone away */
+};
+
+#define DRM_SWITCH_POWER_ON 0
+#define DRM_SWITCH_POWER_OFF 1
+#define DRM_SWITCH_POWER_CHANGING 2
+
+static __inline__ int drm_core_check_feature(struct drm_device *dev,
+ int feature)
+{
+ return ((dev->driver->driver_features & feature) ? 1 : 0);
+}
+
+static inline int drm_dev_to_irq(struct drm_device *dev)
+{
+ return dev->driver->bus->get_irq(dev);
+}
+
+
+#if __OS_HAS_AGP
+static inline int drm_core_has_AGP(struct drm_device *dev)
+{
+ return drm_core_check_feature(dev, DRIVER_USE_AGP);
+}
+#else
+#define drm_core_has_AGP(dev) (0)
+#endif
+
+#if __OS_HAS_MTRR
+static inline int drm_core_has_MTRR(struct drm_device *dev)
+{
+ return drm_core_check_feature(dev, DRIVER_USE_MTRR);
+}
+
+#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
+
+static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
+ unsigned int flags)
+{
+ return mtrr_add(offset, size, flags, 1);
+}
+
+static inline int drm_mtrr_del(int handle, unsigned long offset,
+ unsigned long size, unsigned int flags)
+{
+ return mtrr_del(handle, offset, size);
+}
+
+#else
+#define drm_core_has_MTRR(dev) (0)
+
+#define DRM_MTRR_WC 0
+
+static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
+ unsigned int flags)
+{
+ return 0;
+}
+
+static inline int drm_mtrr_del(int handle, unsigned long offset,
+ unsigned long size, unsigned int flags)
+{
+ return 0;
+}
+#endif
+
+static inline void drm_device_set_unplugged(struct drm_device *dev)
+{
+ smp_wmb();
+ atomic_set(&dev->unplugged, 1);
+}
+
+static inline int drm_device_is_unplugged(struct drm_device *dev)
+{
+ int ret = atomic_read(&dev->unplugged);
+ smp_rmb();
+ return ret;
+}
+
+/******************************************************************/
+/** \name Internal function definitions */
+/*@{*/
+
+ /* Driver support (drm_drv.h) */
+extern long drm_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern long drm_compat_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg);
+extern int drm_lastclose(struct drm_device *dev);
+
+ /* Device support (drm_fops.h) */
+extern struct mutex drm_global_mutex;
+extern int drm_open(struct inode *inode, struct file *filp);
+extern int drm_stub_open(struct inode *inode, struct file *filp);
+extern int drm_fasync(int fd, struct file *filp, int on);
+extern ssize_t drm_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset);
+extern int drm_release(struct inode *inode, struct file *filp);
+
+ /* Mapping support (drm_vm.h) */
+extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
+extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
+extern void drm_vm_open_locked(struct vm_area_struct *vma);
+extern void drm_vm_close_locked(struct vm_area_struct *vma);
+extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
+
+ /* Memory management support (drm_memory.h) */
+#include "drm_memory.h"
+extern void drm_free_agp(DRM_AGP_MEM * handle, int pages);
+extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
+extern DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
+ struct page **pages,
+ unsigned long num_pages,
+ uint32_t gtt_offset,
+ uint32_t type);
+extern int drm_unbind_agp(DRM_AGP_MEM * handle);
+
+ /* Misc. IOCTL support (drm_ioctl.h) */
+extern int drm_irq_by_busid(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_setunique(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getmap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getclient(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getstats(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getcap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_setversion(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_noop(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+ /* Context IOCTL support (drm_context.h) */
+extern int drm_resctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_addctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_modctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_switchctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_newctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_rmctx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+extern int drm_ctxbitmap_init(struct drm_device *dev);
+extern void drm_ctxbitmap_cleanup(struct drm_device *dev);
+extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
+
+extern int drm_setsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_getsareactx(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+ /* Authentication IOCTL support (drm_auth.h) */
+extern int drm_getmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_authmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
+
+/* Cache management (drm_cache.c) */
+void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
+
+ /* Locking IOCTL support (drm_lock.h) */
+extern int drm_lock(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_unlock(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
+extern void drm_idlelock_take(struct drm_lock_data *lock_data);
+extern void drm_idlelock_release(struct drm_lock_data *lock_data);
+
+/*
+ * These are exported to drivers so that they can implement fencing using
+ * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
+ */
+
+extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
+
+ /* Buffer management support (drm_bufs.h) */
+extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
+extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
+extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map **map_ptr);
+extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
+extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
+extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_addbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_infobufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_markbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_freebufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_mapbufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_order(unsigned long size);
+
+ /* DMA support (drm_dma.h) */
+extern int drm_dma_setup(struct drm_device *dev);
+extern void drm_dma_takedown(struct drm_device *dev);
+extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
+extern void drm_core_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *filp);
+
+ /* IRQ support (drm_irq.h) */
+extern int drm_control(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_irq_install(struct drm_device *dev);
+extern int drm_irq_uninstall(struct drm_device *dev);
+
+extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
+extern int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *filp);
+extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
+extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
+extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
+ struct timeval *vblanktime);
+extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
+extern int drm_vblank_get(struct drm_device *dev, int crtc);
+extern void drm_vblank_put(struct drm_device *dev, int crtc);
+extern void drm_vblank_off(struct drm_device *dev, int crtc);
+extern void drm_vblank_cleanup(struct drm_device *dev);
+extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
+ struct timeval *tvblank, unsigned flags);
+extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
+ int crtc, int *max_error,
+ struct timeval *vblank_time,
+ unsigned flags,
+ struct drm_crtc *refcrtc);
+extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
+
+extern bool
+drm_mode_parse_command_line_for_connector(const char *mode_option,
+ struct drm_connector *connector,
+ struct drm_cmdline_mode *mode);
+
+extern struct drm_display_mode *
+drm_mode_create_from_cmdline_mode(struct drm_device *dev,
+ struct drm_cmdline_mode *cmd);
+
+/* Modesetting support */
+extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
+extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
+extern int drm_modeset_ctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+ /* AGP/GART support (drm_agpsupport.h) */
+extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
+extern int drm_agp_acquire(struct drm_device *dev);
+extern int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_release(struct drm_device *dev);
+extern int drm_agp_release_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
+extern int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
+extern int drm_agp_info_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
+extern int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
+extern int drm_agp_free_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
+extern int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
+extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+ /* Stub support (drm_stub.h) */
+extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+struct drm_master *drm_master_create(struct drm_minor *minor);
+extern struct drm_master *drm_master_get(struct drm_master *master);
+extern void drm_master_put(struct drm_master **master);
+
+extern void drm_put_dev(struct drm_device *dev);
+extern int drm_put_minor(struct drm_minor **minor);
+extern void drm_unplug_dev(struct drm_device *dev);
+extern unsigned int drm_debug;
+
+extern unsigned int drm_vblank_offdelay;
+extern unsigned int drm_timestamp_precision;
+
+extern struct class *drm_class;
+extern struct proc_dir_entry *drm_proc_root;
+extern struct dentry *drm_debugfs_root;
+
+extern struct idr drm_minors_idr;
+
+extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
+
+ /* Proc support (drm_proc.h) */
+extern int drm_proc_init(struct drm_minor *minor, int minor_id,
+ struct proc_dir_entry *root);
+extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
+
+ /* Debugfs support */
+#if defined(CONFIG_DEBUG_FS)
+extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+ struct dentry *root);
+extern int drm_debugfs_create_files(struct drm_info_list *files, int count,
+ struct dentry *root, struct drm_minor *minor);
+extern int drm_debugfs_remove_files(struct drm_info_list *files, int count,
+ struct drm_minor *minor);
+extern int drm_debugfs_cleanup(struct drm_minor *minor);
+#endif
+
+ /* Info file support */
+extern int drm_name_info(struct seq_file *m, void *data);
+extern int drm_vm_info(struct seq_file *m, void *data);
+extern int drm_queues_info(struct seq_file *m, void *data);
+extern int drm_bufs_info(struct seq_file *m, void *data);
+extern int drm_vblank_info(struct seq_file *m, void *data);
+extern int drm_clients_info(struct seq_file *m, void* data);
+extern int drm_gem_name_info(struct seq_file *m, void *data);
+
+
+extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
+ struct drm_file *file_priv, uint32_t handle, uint32_t flags,
+ int *prime_fd);
+extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
+ struct drm_file *file_priv, int prime_fd, uint32_t *handle);
+
+extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
+extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
+
+
+void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
+void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
+int drm_prime_add_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t handle);
+int drm_prime_lookup_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf, uint32_t *handle);
+void drm_prime_remove_imported_buf_handle(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
+
+int drm_prime_add_dma_buf(struct drm_device *dev, struct drm_gem_object *obj);
+int drm_prime_lookup_obj(struct drm_device *dev, struct dma_buf *buf,
+ struct drm_gem_object **obj);
+
+#if DRM_DEBUG_CODE
+extern int drm_vma_info(struct seq_file *m, void *data);
+#endif
+
+ /* Scatter Gather Support (drm_scatter.h) */
+extern void drm_sg_cleanup(struct drm_sg_mem * entry);
+extern int drm_sg_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+extern int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request);
+extern int drm_sg_free(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+
+ /* ATI PCIGART support (ati_pcigart.h) */
+extern int drm_ati_pcigart_init(struct drm_device *dev,
+ struct drm_ati_pcigart_info * gart_info);
+extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
+ struct drm_ati_pcigart_info * gart_info);
+
+extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
+ size_t align);
+extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
+extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
+
+ /* sysfs support (drm_sysfs.c) */
+struct drm_sysfs_class;
+extern struct class *drm_sysfs_create(struct module *owner, char *name);
+extern void drm_sysfs_destroy(void);
+extern int drm_sysfs_device_add(struct drm_minor *minor);
+extern void drm_sysfs_hotplug_event(struct drm_device *dev);
+extern void drm_sysfs_device_remove(struct drm_minor *minor);
+extern char *drm_get_connector_status_name(enum drm_connector_status status);
+extern int drm_sysfs_connector_add(struct drm_connector *connector);
+extern void drm_sysfs_connector_remove(struct drm_connector *connector);
+
+/* Graphics Execution Manager library functions (drm_gem.c) */
+int drm_gem_init(struct drm_device *dev);
+void drm_gem_destroy(struct drm_device *dev);
+void drm_gem_object_release(struct drm_gem_object *obj);
+void drm_gem_object_free(struct kref *kref);
+struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
+ size_t size);
+int drm_gem_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size);
+int drm_gem_private_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size);
+void drm_gem_object_handle_free(struct drm_gem_object *obj);
+void drm_gem_vm_open(struct vm_area_struct *vma);
+void drm_gem_vm_close(struct vm_area_struct *vma);
+int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
+
+#include "drm_global.h"
+
+static inline void
+drm_gem_object_reference(struct drm_gem_object *obj)
+{
+ kref_get(&obj->refcount);
+}
+
+static inline void
+drm_gem_object_unreference(struct drm_gem_object *obj)
+{
+ if (obj != NULL)
+ kref_put(&obj->refcount, drm_gem_object_free);
+}
+
+static inline void
+drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
+{
+ if (obj != NULL) {
+ struct drm_device *dev = obj->dev;
+ mutex_lock(&dev->struct_mutex);
+ kref_put(&obj->refcount, drm_gem_object_free);
+ mutex_unlock(&dev->struct_mutex);
+ }
+}
+
+int drm_gem_handle_create(struct drm_file *file_priv,
+ struct drm_gem_object *obj,
+ u32 *handlep);
+int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
+
+static inline void
+drm_gem_object_handle_reference(struct drm_gem_object *obj)
+{
+ drm_gem_object_reference(obj);
+ atomic_inc(&obj->handle_count);
+}
+
+static inline void
+drm_gem_object_handle_unreference(struct drm_gem_object *obj)
+{
+ if (obj == NULL)
+ return;
+
+ if (atomic_read(&obj->handle_count) == 0)
+ return;
+ /*
+ * Must bump handle count first as this may be the last
+ * ref, in which case the object would disappear before we
+ * checked for a name
+ */
+ if (atomic_dec_and_test(&obj->handle_count))
+ drm_gem_object_handle_free(obj);
+ drm_gem_object_unreference(obj);
+}
+
+static inline void
+drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
+{
+ if (obj == NULL)
+ return;
+
+ if (atomic_read(&obj->handle_count) == 0)
+ return;
+
+ /*
+ * Must bump handle count first as this may be the last
+ * ref, in which case the object would disappear before we
+ * checked for a name
+ */
+
+ if (atomic_dec_and_test(&obj->handle_count))
+ drm_gem_object_handle_free(obj);
+ drm_gem_object_unreference_unlocked(obj);
+}
+
+void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
+int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
+
+struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
+ struct drm_file *filp,
+ u32 handle);
+int drm_gem_close_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+int drm_gem_open_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
+void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
+
+extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
+extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
+extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
+
+static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
+ unsigned int token)
+{
+ struct drm_map_list *_entry;
+ list_for_each_entry(_entry, &dev->maplist, head)
+ if (_entry->user_token == token)
+ return _entry->map;
+ return NULL;
+}
+
+static __inline__ void drm_core_dropmap(struct drm_local_map *map)
+{
+}
+
+#include "drm_mem_util.h"
+
+extern int drm_fill_in_dev(struct drm_device *dev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver);
+int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
+/*@}*/
+
+/* PCI section */
+static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
+{
+ if (dev->driver->device_is_agp != NULL) {
+ int err = (*dev->driver->device_is_agp) (dev);
+
+ if (err != 2) {
+ return err;
+ }
+ }
+
+ return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
+}
+
+extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
+extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
+extern int drm_get_pci_dev(struct pci_dev *pdev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver);
+
+
+/* platform section */
+extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
+extern void drm_platform_exit(struct drm_driver *driver, struct platform_device *platform_device);
+
+extern int drm_get_platform_dev(struct platform_device *pdev,
+ struct drm_driver *driver);
+
+/* returns true if currently okay to sleep */
+static __inline__ bool drm_can_sleep(void)
+{
+ if (in_atomic() || in_dbg_master() || irqs_disabled())
+ return false;
+ return true;
+}
+
+#endif /* __KERNEL__ */
+#endif