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.
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);
/** \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);
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;
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) */
projects / linux-2.6-block.git / blobdiff