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-rw-r--r--linux-core/drmP.h89
-rw-r--r--linux-core/drm_drv.c4
-rw-r--r--linux-core/drm_irq.c353
-rw-r--r--linux-core/i915_drv.c8
-rw-r--r--linux-core/mga_drv.c7
-rw-r--r--linux-core/r128_drv.c7
-rw-r--r--linux-core/radeon_drv.c8
7 files changed, 384 insertions, 92 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index ac3ca4d2..332ee1cd 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -102,10 +102,8 @@ struct drm_file;
#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_DMA_QUEUE 0x100
+#define DRIVER_FB_DMA 0x200
/*@}*/
@@ -638,8 +636,50 @@ 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);
+ /**
+ * 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);
int (*dri_library_name) (struct drm_device * dev, char * buf);
/**
@@ -658,7 +698,7 @@ struct drm_driver {
/* these have to be filled in */
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);
@@ -795,13 +835,19 @@ 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 */
+ 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 interrupts per crtc */
+ u32 *last_vblank; /* protected by dev->vbl_lock, used */
+ /* for wraparound handling */
+ u32 *vblank_offset; /* used to track how many vblanks */
+ u32 *vblank_premodeset; /* were lost during modeset */
+ struct timer_list vblank_disable_timer;
+
+ unsigned long max_vblank_count; /**< size of vblank counter register */
spinlock_t tasklet_lock; /**< For drm_locked_tasklet */
void (*locked_tasklet_func)(struct drm_device *dev);
@@ -821,6 +867,7 @@ struct drm_device {
#ifdef __alpha__
struct pci_controller *hose;
#endif
+ int num_crtcs; /**< Number of CRTCs on this device */
struct drm_sg_mem *sg; /**< Scatter gather memory */
void *dev_private; /**< device private data */
struct drm_sigdata sigdata; /**< For block_all_signals */
@@ -1092,11 +1139,19 @@ 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_wait_vblank(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
-extern void drm_vbl_send_signals(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 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_update_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);
/* AGP/GART support (drm_agpsupport.h) */
extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 47d17651..296a3268 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -115,14 +115,12 @@ static struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-
DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0),
- // DRM_IOCTL_DEF(DRM_IOCTL_BUFOBJ, drm_bo_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-
DRM_IOCTL_DEF(DRM_IOCTL_MM_INIT, drm_mm_init_ioctl,
DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_MM_TAKEDOWN, drm_mm_takedown_ioctl,
diff --git a/linux-core/drm_irq.c b/linux-core/drm_irq.c
index 25166b6f..e917e7eb 100644
--- a/linux-core/drm_irq.c
+++ b/linux-core/drm_irq.c
@@ -71,18 +71,102 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
return 0;
}
+static void vblank_disable_fn(unsigned long arg)
+{
+ struct drm_device *dev = (struct drm_device *)arg;
+ int i;
+
+ for (i = 0; i < dev->num_crtcs; i++)
+ if (atomic_read(&dev->vblank_refcount[i]) == 0)
+ dev->driver->disable_vblank(dev, i);
+}
+
+int drm_vblank_init(struct drm_device *dev, int num_crtcs)
+{
+ int i, ret = -ENOMEM;
+
+ setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,\
+ (unsigned long)dev);
+ spin_lock_init(&dev->vbl_lock);
+ atomic_set(&dev->vbl_signal_pending, 0);
+ dev->num_crtcs = num_crtcs;
+
+ dev->vbl_queue = drm_alloc(sizeof(wait_queue_head_t) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->vbl_queue)
+ goto err;
+
+ dev->vbl_sigs = drm_alloc(sizeof(struct list_head) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->vbl_sigs)
+ goto err;
+
+ dev->_vblank_count = drm_alloc(sizeof(atomic_t) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->_vblank_count)
+ goto err;
+
+ dev->vblank_refcount = drm_alloc(sizeof(atomic_t) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->vblank_refcount)
+ goto err;
+
+ dev->last_vblank = drm_calloc(1, sizeof(u32) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->last_vblank)
+ goto err;
+
+ dev->vblank_premodeset = drm_calloc(1, sizeof(u32) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->vblank_premodeset)
+ goto err;
+
+ dev->vblank_offset = drm_calloc(1, sizeof(u32) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->vblank_offset)
+ goto err;
+
+ /* Zero per-crtc vblank stuff */
+ for (i = 0; i < num_crtcs; i++) {
+ init_waitqueue_head(&dev->vbl_queue[i]);
+ INIT_LIST_HEAD(&dev->vbl_sigs[i]);
+ atomic_set(&dev->_vblank_count[i], 0);
+ atomic_set(&dev->vblank_refcount[i], 0);
+ }
+
+ return 0;
+
+err:
+ drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * num_crtcs,
+ DRM_MEM_DRIVER);
+ drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * num_crtcs,
+ DRM_MEM_DRIVER);
+ drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) * num_crtcs,
+ DRM_MEM_DRIVER);
+ drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
+ num_crtcs, DRM_MEM_DRIVER);
+ drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * num_crtcs,
+ DRM_MEM_DRIVER);
+ drm_free(dev->vblank_premodeset, sizeof(*dev->vblank_premodeset) *
+ num_crtcs, DRM_MEM_DRIVER);
+ drm_free(dev->vblank_offset, sizeof(*dev->vblank_offset) * num_crtcs,
+ DRM_MEM_DRIVER);
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_init);
+
/**
* Install IRQ handler.
*
* \param dev DRM device.
*
- * Initializes the IRQ related data, and setups drm_device::vbl_queue. Installs the handler, calling the driver
+ * Initializes the IRQ related data. Installs the handler, calling the driver
* \c drm_driver_irq_preinstall() and \c drm_driver_irq_postinstall() functions
* before and after the installation.
*/
int drm_irq_install(struct drm_device * dev)
{
- int ret;
+ int ret = 0;
unsigned long sh_flags = 0;
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
@@ -108,17 +192,6 @@ int drm_irq_install(struct drm_device * dev)
DRM_DEBUG("%s: irq=%d\n", __FUNCTION__, dev->irq);
- if (drm_core_check_feature(dev, DRIVER_IRQ_VBL)) {
- init_waitqueue_head(&dev->vbl_queue);
-
- spin_lock_init(&dev->vbl_lock);
-
- INIT_LIST_HEAD(&dev->vbl_sigs);
- INIT_LIST_HEAD(&dev->vbl_sigs2);
-
- dev->vbl_pending = 0;
- }
-
/* Before installing handler */
dev->driver->irq_preinstall(dev);
@@ -136,9 +209,9 @@ int drm_irq_install(struct drm_device * dev)
}
/* After installing handler */
- dev->driver->irq_postinstall(dev);
+ ret = dev->driver->irq_postinstall(dev);
- return 0;
+ return ret;
}
EXPORT_SYMBOL(drm_irq_install);
@@ -213,6 +286,149 @@ int drm_control(struct drm_device *dev, void *data,
}
/**
+ * drm_vblank_count - retrieve "cooked" vblank counter value
+ * @dev: DRM device
+ * @crtc: which counter to retrieve
+ *
+ * Fetches the "cooked" vblank count value that represents the number of
+ * vblank events since the system was booted, including lost events due to
+ * modesetting activity.
+ */
+u32 drm_vblank_count(struct drm_device *dev, int crtc)
+{
+ return atomic_read(&dev->_vblank_count[crtc]) +
+ dev->vblank_offset[crtc];
+}
+EXPORT_SYMBOL(drm_vblank_count);
+
+/**
+ * drm_update_vblank_count - update the master vblank counter
+ * @dev: DRM device
+ * @crtc: counter to update
+ *
+ * Call back into the driver to update the appropriate vblank counter
+ * (specified by @crtc). Deal with wraparound, if it occurred, and
+ * update the last read value so we can deal with wraparound on the next
+ * call if necessary.
+ */
+void drm_update_vblank_count(struct drm_device *dev, int crtc)
+{
+ unsigned long irqflags;
+ u32 cur_vblank, diff;
+
+ /*
+ * Interrupts were disabled prior to this call, so deal with counter
+ * wrap if needed.
+ * NOTE! It's possible we lost a full dev->max_vblank_count events
+ * here if the register is small or we had vblank interrupts off for
+ * a long time.
+ */
+ cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
+ spin_lock_irqsave(&dev->vbl_lock, irqflags);
+ if (cur_vblank < dev->last_vblank[crtc]) {
+ diff = dev->max_vblank_count -
+ dev->last_vblank[crtc];
+ diff += cur_vblank;
+ } else {
+ diff = cur_vblank - dev->last_vblank[crtc];
+ }
+ dev->last_vblank[crtc] = cur_vblank;
+ spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ atomic_add(diff, &dev->_vblank_count[crtc]);
+}
+EXPORT_SYMBOL(drm_update_vblank_count);
+
+/**
+ * drm_vblank_get - get a reference count on vblank events
+ * @dev: DRM device
+ * @crtc: which CRTC to own
+ *
+ * Acquire a reference count on vblank events to avoid having them disabled
+ * while in use. Note callers will probably want to update the master counter
+ * using drm_update_vblank_count() above before calling this routine so that
+ * wakeups occur on the right vblank event.
+ *
+ * RETURNS
+ * Zero on success, nonzero on failure.
+ */
+int drm_vblank_get(struct drm_device *dev, int crtc)
+{
+ int ret = 0;
+
+ /* Going from 0->1 means we have to enable interrupts again */
+ if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1) {
+ ret = dev->driver->enable_vblank(dev, crtc);
+ if (ret)
+ atomic_dec(&dev->vblank_refcount[crtc]);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_vblank_get);
+
+/**
+ * drm_vblank_put - give up ownership of vblank events
+ * @dev: DRM device
+ * @crtc: which counter to give up
+ *
+ * Release ownership of a given vblank counter, turning off interrupts
+ * if possible.
+ */
+void drm_vblank_put(struct drm_device *dev, int crtc)
+{
+ /* Last user schedules interrupt disable */
+ if (atomic_dec_and_test(&dev->vblank_refcount[crtc]))
+ mod_timer(&dev->vblank_disable_timer,
+ round_jiffies_relative(DRM_HZ));
+}
+EXPORT_SYMBOL(drm_vblank_put);
+
+/**
+ * drm_modeset_ctl - handle vblank event counter changes across mode switch
+ * @DRM_IOCTL_ARGS: standard ioctl arguments
+ *
+ * Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET
+ * ioctls around modesetting so that any lost vblank events are accounted for.
+ */
+int drm_modeset_ctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_modeset_ctl_t __user *argp = (void __user *)data;
+ drm_modeset_ctl_t modeset;
+ int crtc, ret = 0;
+ u32 new;
+
+ if (copy_from_user(&modeset, argp, sizeof(modeset))) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ crtc = modeset.arg;
+ if (crtc >= dev->num_crtcs) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (modeset.cmd) {
+ case _DRM_PRE_MODESET:
+ dev->vblank_premodeset[crtc] =
+ dev->driver->get_vblank_counter(dev, crtc);
+ break;
+ case _DRM_POST_MODESET:
+ new = dev->driver->get_vblank_counter(dev, crtc);
+ dev->vblank_offset[crtc] = dev->vblank_premodeset[crtc] - new;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ return ret;
+}
+
+/**
* Wait for VBLANK.
*
* \param inode device inode.
@@ -231,12 +447,13 @@ int drm_control(struct drm_device *dev, void *data,
*
* If a signal is not requested, then calls vblank_wait().
*/
-int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv)
+int drm_wait_vblank(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
union drm_wait_vblank *vblwait = data;
struct timeval now;
int ret = 0;
- unsigned int flags, seq;
+ unsigned int flags, seq, crtc;
if ((!dev->irq) || (!dev->irq_enabled))
return -EINVAL;
@@ -250,13 +467,13 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
}
flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
+ crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
- if (!drm_core_check_feature(dev, (flags & _DRM_VBLANK_SECONDARY) ?
- DRIVER_IRQ_VBL2 : DRIVER_IRQ_VBL))
+ if (crtc >= dev->num_crtcs)
return -EINVAL;
- seq = atomic_read((flags & _DRM_VBLANK_SECONDARY) ? &dev->vbl_received2
- : &dev->vbl_received);
+ drm_update_vblank_count(dev, crtc);
+ seq = drm_vblank_count(dev, crtc);
switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
case _DRM_VBLANK_RELATIVE:
@@ -275,8 +492,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
if (flags & _DRM_VBLANK_SIGNAL) {
unsigned long irqflags;
- struct list_head *vbl_sigs = (flags & _DRM_VBLANK_SECONDARY)
- ? &dev->vbl_sigs2 : &dev->vbl_sigs;
+ struct list_head *vbl_sigs = &dev->vbl_sigs[crtc];
struct drm_vbl_sig *vbl_sig;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
@@ -297,22 +513,26 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
}
}
- if (dev->vbl_pending >= 100) {
+ if (atomic_read(&dev->vbl_signal_pending) >= 100) {
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
return -EBUSY;
}
- dev->vbl_pending++;
-
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
- if (!
- (vbl_sig =
- drm_alloc(sizeof(struct drm_vbl_sig), DRM_MEM_DRIVER))) {
+ vbl_sig = drm_calloc(1, sizeof(struct drm_vbl_sig),
+ DRM_MEM_DRIVER);
+ if (!vbl_sig)
return -ENOMEM;
+
+ ret = drm_vblank_get(dev, crtc);
+ if (ret) {
+ drm_free(vbl_sig, sizeof(struct drm_vbl_sig),
+ DRM_MEM_DRIVER);
+ return ret;
}
- memset((void *)vbl_sig, 0, sizeof(*vbl_sig));
+ atomic_inc(&dev->vbl_signal_pending);
vbl_sig->sequence = vblwait->request.sequence;
vbl_sig->info.si_signo = vblwait->request.signal;
@@ -326,17 +546,20 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
vblwait->reply.sequence = seq;
} else {
- if (flags & _DRM_VBLANK_SECONDARY) {
- if (dev->driver->vblank_wait2)
- ret = dev->driver->vblank_wait2(dev, &vblwait->request.sequence);
- } else if (dev->driver->vblank_wait)
- ret =
- dev->driver->vblank_wait(dev,
- &vblwait->request.sequence);
-
+ unsigned long cur_vblank;
+
+ ret = drm_vblank_get(dev, crtc);
+ if (ret)
+ return ret;
+ DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ,
+ (((cur_vblank = drm_vblank_count(dev, crtc))
+ - vblwait->request.sequence) <= (1 << 23)));
+ drm_vblank_put(dev, crtc);
do_gettimeofday(&now);
+
vblwait->reply.tval_sec = now.tv_sec;
vblwait->reply.tval_usec = now.tv_usec;
+ vblwait->reply.sequence = cur_vblank;
}
done:
@@ -347,43 +570,57 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
* Send the VBLANK signals.
*
* \param dev DRM device.
+ * \param crtc CRTC where the vblank event occurred
*
* Sends a signal for each task in drm_device::vbl_sigs and empties the list.
*
* If a signal is not requested, then calls vblank_wait().
*/
-void drm_vbl_send_signals(struct drm_device * dev)
+static void drm_vbl_send_signals(struct drm_device * dev, int crtc)
{
+ struct drm_vbl_sig *vbl_sig, *tmp;
+ struct list_head *vbl_sigs;
+ unsigned int vbl_seq;
unsigned long flags;
- int i;
spin_lock_irqsave(&dev->vbl_lock, flags);
- for (i = 0; i < 2; i++) {
- struct drm_vbl_sig *vbl_sig, *tmp;
- struct list_head *vbl_sigs = i ? &dev->vbl_sigs2 : &dev->vbl_sigs;
- unsigned int vbl_seq = atomic_read(i ? &dev->vbl_received2 :
- &dev->vbl_received);
-
- list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) {
- if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) {
- vbl_sig->info.si_code = vbl_seq;
- send_sig_info(vbl_sig->info.si_signo,
- &vbl_sig->info, vbl_sig->task);
+ vbl_sigs = &dev->vbl_sigs[crtc];
+ vbl_seq = drm_vblank_count(dev, crtc);
- list_del(&vbl_sig->head);
+ list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) {
+ if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) {
+ vbl_sig->info.si_code = vbl_seq;
+ send_sig_info(vbl_sig->info.si_signo,
+ &vbl_sig->info, vbl_sig->task);
- drm_free(vbl_sig, sizeof(*vbl_sig),
- DRM_MEM_DRIVER);
+ list_del(&vbl_sig->head);
- dev->vbl_pending--;
- }
- }
+ drm_free(vbl_sig, sizeof(*vbl_sig),
+ DRM_MEM_DRIVER);
+ atomic_dec(&dev->vbl_signal_pending);
+ drm_vblank_put(dev, crtc);
+ }
}
spin_unlock_irqrestore(&dev->vbl_lock, flags);
}
-EXPORT_SYMBOL(drm_vbl_send_signals);
+
+/**
+ * drm_handle_vblank - handle a vblank event
+ * @dev: DRM device
+ * @crtc: where this event occurred
+ *
+ * Drivers should call this routine in their vblank interrupt handlers to
+ * update the vblank counter and send any signals that may be pending.
+ */
+void drm_handle_vblank(struct drm_device *dev, int crtc)
+{
+ drm_update_vblank_count(dev, crtc);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
+ drm_vbl_send_signals(dev, crtc);
+}
+EXPORT_SYMBOL(drm_handle_vblank);
/**
* Tasklet wrapper function.
diff --git a/linux-core/i915_drv.c b/linux-core/i915_drv.c
index 124db68f..84df64a7 100644
--- a/linux-core/i915_drv.c
+++ b/linux-core/i915_drv.c
@@ -529,8 +529,7 @@ static struct drm_driver driver = {
*/
.driver_features =
DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR | */
- DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL |
- DRIVER_IRQ_VBL2,
+ DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.load = i915_driver_load,
.unload = i915_driver_unload,
.firstopen = i915_driver_firstopen,
@@ -539,8 +538,9 @@ static struct drm_driver driver = {
.suspend = i915_suspend,
.resume = i915_resume,
.device_is_agp = i915_driver_device_is_agp,
- .vblank_wait = i915_driver_vblank_wait,
- .vblank_wait2 = i915_driver_vblank_wait2,
+ .get_vblank_counter = i915_get_vblank_counter,
+ .enable_vblank = i915_enable_vblank,
+ .disable_vblank = i915_disable_vblank,
.irq_preinstall = i915_driver_irq_preinstall,
.irq_postinstall = i915_driver_irq_postinstall,
.irq_uninstall = i915_driver_irq_uninstall,
diff --git a/linux-core/mga_drv.c b/linux-core/mga_drv.c
index 1eb6d9e6..11796b01 100644
--- a/linux-core/mga_drv.c
+++ b/linux-core/mga_drv.c
@@ -46,15 +46,16 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
- DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
- DRIVER_IRQ_VBL,
+ DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.dev_priv_size = sizeof (drm_mga_buf_priv_t),
.load = mga_driver_load,
.unload = mga_driver_unload,
.lastclose = mga_driver_lastclose,
.dma_quiescent = mga_driver_dma_quiescent,
.device_is_agp = mga_driver_device_is_agp,
- .vblank_wait = mga_driver_vblank_wait,
+ .get_vblank_counter = mga_get_vblank_counter,
+ .enable_vblank = mga_enable_vblank,
+ .disable_vblank = mga_disable_vblank,
.irq_preinstall = mga_driver_irq_preinstall,
.irq_postinstall = mga_driver_irq_postinstall,
.irq_uninstall = mga_driver_irq_uninstall,
diff --git a/linux-core/r128_drv.c b/linux-core/r128_drv.c
index ef4a5cbd..7b6159b9 100644
--- a/linux-core/r128_drv.c
+++ b/linux-core/r128_drv.c
@@ -44,12 +44,13 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
- DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
- DRIVER_IRQ_VBL,
+ DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.dev_priv_size = sizeof(drm_r128_buf_priv_t),
.preclose = r128_driver_preclose,
.lastclose = r128_driver_lastclose,
- .vblank_wait = r128_driver_vblank_wait,
+ .get_vblank_counter = r128_get_vblank_counter,
+ .enable_vblank = r128_enable_vblank,
+ .disable_vblank = r128_disable_vblank,
.irq_preinstall = r128_driver_irq_preinstall,
.irq_postinstall = r128_driver_irq_postinstall,
.irq_uninstall = r128_driver_irq_uninstall,
diff --git a/linux-core/radeon_drv.c b/linux-core/radeon_drv.c
index 327a6a97..39c35134 100644
--- a/linux-core/radeon_drv.c
+++ b/linux-core/radeon_drv.c
@@ -60,8 +60,7 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
- DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED |
- DRIVER_IRQ_VBL | DRIVER_IRQ_VBL2,
+ DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
.dev_priv_size = sizeof(drm_radeon_buf_priv_t),
.load = radeon_driver_load,
.firstopen = radeon_driver_firstopen,
@@ -70,8 +69,9 @@ static struct drm_driver driver = {
.postclose = radeon_driver_postclose,
.lastclose = radeon_driver_lastclose,
.unload = radeon_driver_unload,
- .vblank_wait = radeon_driver_vblank_wait,
- .vblank_wait2 = radeon_driver_vblank_wait2,
+ .get_vblank_counter = radeon_get_vblank_counter,
+ .enable_vblank = radeon_enable_vblank,
+ .disable_vblank = radeon_disable_vblank,
.dri_library_name = dri_library_name,
.irq_preinstall = radeon_driver_irq_preinstall,
.irq_postinstall = radeon_driver_irq_postinstall,