1 files changed, 237 insertions, 12 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 1c1b13e29223..59c796b46ee7 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -104,6 +104,7 @@ struct drm_device;
 #define DRIVER_DMA_QUEUE   0x200
 #define DRIVER_FB_DMA      0x400
 #define DRIVER_IRQ_VBL2    0x800
+#define DRIVER_GEM         0x1000
 
 /***********************************************************************/
 /** \name Begin the DRM... */
@@ -387,6 +388,10 @@ struct drm_file {
         struct drm_minor *minor;
         int remove_auth_on_close;
         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;
 };
@@ -558,6 +563,56 @@ struct drm_ati_pcigart_info {
 };
 
 /**
+ * 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 */
+        struct kref handlecount;
+
+        /** Related drm device */
+        struct drm_device *dev;
+
+        /** File representing the shmem storage */
+        struct file *filp;
+
+        /**
+         * 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;
+};
+
+/**
  * 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
@@ -580,11 +635,54 @@ struct drm_driver {
         int (*kernel_context_switch) (struct drm_device *dev, int old,
                                       int new);
         void (*kernel_context_switch_unlock) (struct drm_device *dev);
-        int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence);
-        int (*vblank_wait2) (struct drm_device *dev, unsigned int *sequence);
         int (*dri_library_name) (struct drm_device *dev, char *buf);
 
         /**
+         * 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.
          *
@@ -601,7 +699,7 @@ struct drm_driver {
 
         irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
         void (*irq_preinstall) (struct drm_device *dev);
-        void (*irq_postinstall) (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);
@@ -614,6 +712,18 @@ struct drm_driver {
         void (*set_version) (struct drm_device *dev,
                              struct drm_set_version *sv);
 
+        int (*proc_init)(struct drm_minor *minor);
+        void (*proc_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 major;
         int minor;
         int patchlevel;
@@ -714,7 +824,6 @@ struct drm_device {
 
         /** \name Context support */
         /*@{ */
-        int irq;                        /**< Interrupt used by board */
         int irq_enabled;                /**< True if irq handler is enabled */
         __volatile__ long context_flag; /**< Context swapping flag */
         __volatile__ long interrupt_flag; /**< Interruption handler flag */
@@ -730,13 +839,28 @@ struct drm_device {
         /** \name VBLANK IRQ support */
         /*@{ */
 
-        wait_queue_head_t vbl_queue;    /**< VBLANK wait queue */
-        atomic_t vbl_received;
-        atomic_t vbl_received2;         /**< number of secondary VBLANK interrupts */
+        /*
+         * 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) */
         spinlock_t vbl_lock;
-        struct list_head vbl_sigs;              /**< signal list to send on VBLANK */
-        struct list_head vbl_sigs2;     /**< signals to send on secondary VBLANK */
-        unsigned int vbl_pending;
+        struct list_head *vbl_sigs;     /**< signal list to send on VBLANK */
+        atomic_t vbl_signal_pending;    /* number of signals pending on all crtcs*/
+        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 */
+        struct timer_list vblank_disable_timer;
+
+        u32 max_vblank_count;           /**< size of vblank counter register */
         spinlock_t tasklet_lock;        /**< For drm_locked_tasklet */
         void (*locked_tasklet_func)(struct drm_device *dev);
 
@@ -757,6 +881,7 @@ struct drm_device {
         struct pci_controller *hose;
 #endif
         struct drm_sg_mem *sg;  /**< Scatter gather memory */
+        int num_crtcs;                  /**< Number of CRTCs on this device */
         void *dev_private;              /**< device private data */
         struct drm_sigdata sigdata;        /**< For block_all_signals */
         sigset_t sigmask;
@@ -771,8 +896,29 @@ struct drm_device {
         spinlock_t drw_lock;
         struct idr drw_idr;
         /*@} */
+
+        /** \name GEM information */
+        /*@{ */
+        spinlock_t object_name_lock;
+        struct idr object_name_idr;
+        atomic_t object_count;
+        atomic_t object_memory;
+        atomic_t pin_count;
+        atomic_t pin_memory;
+        atomic_t gtt_count;
+        atomic_t gtt_memory;
+        uint32_t gtt_total;
+        uint32_t invalidate_domains;    /* domains pending invalidation */
+        uint32_t flush_domains;         /* domains pending flush */
+        /*@} */
+
 };
 
+static inline int drm_dev_to_irq(struct drm_device *dev)
+{
+        return dev->pdev->irq;
+}
+
 static __inline__ int drm_core_check_feature(struct drm_device *dev,
                                              int feature)
 {
@@ -867,6 +1013,11 @@ extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
 extern DRM_AGP_MEM *drm_alloc_agp(struct drm_device *dev, int pages, u32 type);
 extern int 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) */
@@ -929,6 +1080,9 @@ extern int drm_getmagic(struct drm_device *dev, void *data,
 extern int drm_authmagic(struct drm_device *dev, void *data,
                          struct drm_file *file_priv);
 
+/* 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);
@@ -985,15 +1139,25 @@ extern void drm_core_reclaim_buffers(struct drm_device *dev,
 extern int drm_control(struct drm_device *dev, void *data,
                        struct drm_file *file_priv);
 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
+extern int drm_irq_install(struct drm_device *dev);
 extern int drm_irq_uninstall(struct drm_device *dev);
 extern void drm_driver_irq_preinstall(struct drm_device *dev);
 extern void drm_driver_irq_postinstall(struct drm_device *dev);
 extern void drm_driver_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 *file_priv);
+                           struct drm_file *filp);
 extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
-extern void drm_vbl_send_signals(struct drm_device *dev);
+extern void drm_locked_tasklet(struct drm_device *dev,
+                               void(*func)(struct drm_device *));
+extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
+extern void 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);
+/* Modesetting support */
+extern int drm_modeset_ctl(struct drm_device *dev, void *data,
+                           struct drm_file *file_priv);
 extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
 
                                 /* AGP/GART support (drm_agpsupport.h) */
@@ -1026,6 +1190,7 @@ extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge, size
 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
+extern void drm_agp_chipset_flush(struct drm_device *dev);
 
                                 /* Stub support (drm_stub.h) */
 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
@@ -1088,6 +1253,66 @@ extern unsigned long drm_mm_tail_space(struct drm_mm *mm);
 extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, unsigned long size);
 extern int drm_mm_add_space_to_tail(struct drm_mm *mm, unsigned long size);
 
+/* Graphics Execution Manager library functions (drm_gem.c) */
+int drm_gem_init(struct drm_device *dev);
+void drm_gem_object_free(struct kref *kref);
+struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
+                                            size_t size);
+void drm_gem_object_handle_free(struct kref *kref);
+
+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)
+                return;
+
+        kref_put(&obj->refcount, drm_gem_object_free);
+}
+
+int drm_gem_handle_create(struct drm_file *file_priv,
+                          struct drm_gem_object *obj,
+                          int *handlep);
+
+static inline void
+drm_gem_object_handle_reference(struct drm_gem_object *obj)
+{
+        drm_gem_object_reference(obj);
+        kref_get(&obj->handlecount);
+}
+
+static inline void
+drm_gem_object_handle_unreference(struct drm_gem_object *obj)
+{
+        if (obj == NULL)
+                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
+         */
+        kref_put(&obj->handlecount, drm_gem_object_handle_free);
+        drm_gem_object_unreference(obj);
+}
+
+struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
+                                             struct drm_file *filp,
+                                             int 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_map *map, struct drm_device *dev);
 extern void drm_core_ioremap_wc(struct drm_map *map, struct drm_device *dev);
 extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);