{
struct drm_device *dev = (struct drm_device *)arg;
struct vmw_private *dev_priv = vmw_priv(dev);
- uint32_t status;
+ uint32_t status, masked_status;
spin_lock(&dev_priv->irq_lock);
status = inl(dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
+ masked_status = status & dev_priv->irq_mask;
spin_unlock(&dev_priv->irq_lock);
- if (status & SVGA_IRQFLAG_ANY_FENCE)
+ if (likely(status))
+ outl(status, dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
+
+ if (!masked_status)
+ return IRQ_NONE;
+
+ if (masked_status & (SVGA_IRQFLAG_ANY_FENCE |
+ SVGA_IRQFLAG_FENCE_GOAL)) {
+ vmw_fences_update(dev_priv->fman);
wake_up_all(&dev_priv->fence_queue);
- if (status & SVGA_IRQFLAG_FIFO_PROGRESS)
+ }
+
+ if (masked_status & SVGA_IRQFLAG_FIFO_PROGRESS)
wake_up_all(&dev_priv->fifo_queue);
- if (likely(status)) {
- outl(status, dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
- return IRQ_HANDLED;
- }
- return IRQ_NONE;
+ return IRQ_HANDLED;
}
-static bool vmw_fifo_idle(struct vmw_private *dev_priv, uint32_t sequence)
+static bool vmw_fifo_idle(struct vmw_private *dev_priv, uint32_t seqno)
{
uint32_t busy;
return (busy == 0);
}
-void vmw_update_sequence(struct vmw_private *dev_priv,
+void vmw_update_seqno(struct vmw_private *dev_priv,
struct vmw_fifo_state *fifo_state)
{
__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
+ uint32_t seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE);
- uint32_t sequence = ioread32(fifo_mem + SVGA_FIFO_FENCE);
-
- if (dev_priv->last_read_sequence != sequence) {
- dev_priv->last_read_sequence = sequence;
- vmw_fence_pull(&fifo_state->fence_queue, sequence);
+ if (dev_priv->last_read_seqno != seqno) {
+ dev_priv->last_read_seqno = seqno;
+ vmw_marker_pull(&fifo_state->marker_queue, seqno);
+ vmw_fences_update(dev_priv->fman);
}
}
-bool vmw_fence_signaled(struct vmw_private *dev_priv,
- uint32_t sequence)
+bool vmw_seqno_passed(struct vmw_private *dev_priv,
+ uint32_t seqno)
{
struct vmw_fifo_state *fifo_state;
bool ret;
- if (likely(dev_priv->last_read_sequence - sequence < VMW_FENCE_WRAP))
+ if (likely(dev_priv->last_read_seqno - seqno < VMW_FENCE_WRAP))
return true;
fifo_state = &dev_priv->fifo;
- vmw_update_sequence(dev_priv, fifo_state);
- if (likely(dev_priv->last_read_sequence - sequence < VMW_FENCE_WRAP))
+ vmw_update_seqno(dev_priv, fifo_state);
+ if (likely(dev_priv->last_read_seqno - seqno < VMW_FENCE_WRAP))
return true;
if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE) &&
- vmw_fifo_idle(dev_priv, sequence))
+ vmw_fifo_idle(dev_priv, seqno))
return true;
/**
- * Then check if the sequence is higher than what we've actually
+ * Then check if the seqno is higher than what we've actually
* emitted. Then the fence is stale and signaled.
*/
- ret = ((atomic_read(&dev_priv->fence_seq) - sequence)
+ ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
> VMW_FENCE_WRAP);
return ret;
int vmw_fallback_wait(struct vmw_private *dev_priv,
bool lazy,
bool fifo_idle,
- uint32_t sequence,
+ uint32_t seqno,
bool interruptible,
unsigned long timeout)
{
DEFINE_WAIT(__wait);
wait_condition = (fifo_idle) ? &vmw_fifo_idle :
- &vmw_fence_signaled;
+ &vmw_seqno_passed;
/**
* Block command submission while waiting for idle.
if (fifo_idle)
down_read(&fifo_state->rwsem);
- signal_seq = atomic_read(&dev_priv->fence_seq);
+ signal_seq = atomic_read(&dev_priv->marker_seq);
ret = 0;
for (;;) {
prepare_to_wait(&dev_priv->fence_queue, &__wait,
(interruptible) ?
TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
- if (wait_condition(dev_priv, sequence))
+ if (wait_condition(dev_priv, seqno))
break;
if (time_after_eq(jiffies, end_jiffies)) {
DRM_ERROR("SVGA device lockup.\n");
return ret;
}
-int vmw_wait_fence(struct vmw_private *dev_priv,
- bool lazy, uint32_t sequence,
- bool interruptible, unsigned long timeout)
+void vmw_seqno_waiter_add(struct vmw_private *dev_priv)
+{
+ mutex_lock(&dev_priv->hw_mutex);
+ if (dev_priv->fence_queue_waiters++ == 0) {
+ unsigned long irq_flags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irq_flags);
+ outl(SVGA_IRQFLAG_ANY_FENCE,
+ dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
+ dev_priv->irq_mask |= SVGA_IRQFLAG_ANY_FENCE;
+ vmw_write(dev_priv, SVGA_REG_IRQMASK, dev_priv->irq_mask);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irq_flags);
+ }
+ mutex_unlock(&dev_priv->hw_mutex);
+}
+
+void vmw_seqno_waiter_remove(struct vmw_private *dev_priv)
+{
+ mutex_lock(&dev_priv->hw_mutex);
+ if (--dev_priv->fence_queue_waiters == 0) {
+ unsigned long irq_flags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irq_flags);
+ dev_priv->irq_mask &= ~SVGA_IRQFLAG_ANY_FENCE;
+ vmw_write(dev_priv, SVGA_REG_IRQMASK, dev_priv->irq_mask);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irq_flags);
+ }
+ mutex_unlock(&dev_priv->hw_mutex);
+}
+
+
+void vmw_goal_waiter_add(struct vmw_private *dev_priv)
+{
+ mutex_lock(&dev_priv->hw_mutex);
+ if (dev_priv->goal_queue_waiters++ == 0) {
+ unsigned long irq_flags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irq_flags);
+ outl(SVGA_IRQFLAG_FENCE_GOAL,
+ dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
+ dev_priv->irq_mask |= SVGA_IRQFLAG_FENCE_GOAL;
+ vmw_write(dev_priv, SVGA_REG_IRQMASK, dev_priv->irq_mask);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irq_flags);
+ }
+ mutex_unlock(&dev_priv->hw_mutex);
+}
+
+void vmw_goal_waiter_remove(struct vmw_private *dev_priv)
+{
+ mutex_lock(&dev_priv->hw_mutex);
+ if (--dev_priv->goal_queue_waiters == 0) {
+ unsigned long irq_flags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irq_flags);
+ dev_priv->irq_mask &= ~SVGA_IRQFLAG_FENCE_GOAL;
+ vmw_write(dev_priv, SVGA_REG_IRQMASK, dev_priv->irq_mask);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irq_flags);
+ }
+ mutex_unlock(&dev_priv->hw_mutex);
+}
+
+int vmw_wait_seqno(struct vmw_private *dev_priv,
+ bool lazy, uint32_t seqno,
+ bool interruptible, unsigned long timeout)
{
long ret;
- unsigned long irq_flags;
struct vmw_fifo_state *fifo = &dev_priv->fifo;
- if (likely(dev_priv->last_read_sequence - sequence < VMW_FENCE_WRAP))
+ if (likely(dev_priv->last_read_seqno - seqno < VMW_FENCE_WRAP))
return 0;
- if (likely(vmw_fence_signaled(dev_priv, sequence)))
+ if (likely(vmw_seqno_passed(dev_priv, seqno)))
return 0;
vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
if (!(fifo->capabilities & SVGA_FIFO_CAP_FENCE))
- return vmw_fallback_wait(dev_priv, lazy, true, sequence,
+ return vmw_fallback_wait(dev_priv, lazy, true, seqno,
interruptible, timeout);
if (!(dev_priv->capabilities & SVGA_CAP_IRQMASK))
- return vmw_fallback_wait(dev_priv, lazy, false, sequence,
+ return vmw_fallback_wait(dev_priv, lazy, false, seqno,
interruptible, timeout);
- mutex_lock(&dev_priv->hw_mutex);
- if (atomic_add_return(1, &dev_priv->fence_queue_waiters) > 0) {
- spin_lock_irqsave(&dev_priv->irq_lock, irq_flags);
- outl(SVGA_IRQFLAG_ANY_FENCE,
- dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
- vmw_write(dev_priv, SVGA_REG_IRQMASK,
- vmw_read(dev_priv, SVGA_REG_IRQMASK) |
- SVGA_IRQFLAG_ANY_FENCE);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irq_flags);
- }
- mutex_unlock(&dev_priv->hw_mutex);
+ vmw_seqno_waiter_add(dev_priv);
if (interruptible)
ret = wait_event_interruptible_timeout
(dev_priv->fence_queue,
- vmw_fence_signaled(dev_priv, sequence),
+ vmw_seqno_passed(dev_priv, seqno),
timeout);
else
ret = wait_event_timeout
(dev_priv->fence_queue,
- vmw_fence_signaled(dev_priv, sequence),
+ vmw_seqno_passed(dev_priv, seqno),
timeout);
+ vmw_seqno_waiter_remove(dev_priv);
+
if (unlikely(ret == 0))
ret = -EBUSY;
else if (likely(ret > 0))
ret = 0;
- mutex_lock(&dev_priv->hw_mutex);
- if (atomic_dec_and_test(&dev_priv->fence_queue_waiters)) {
- spin_lock_irqsave(&dev_priv->irq_lock, irq_flags);
- vmw_write(dev_priv, SVGA_REG_IRQMASK,
- vmw_read(dev_priv, SVGA_REG_IRQMASK) &
- ~SVGA_IRQFLAG_ANY_FENCE);
- spin_unlock_irqrestore(&dev_priv->irq_lock, irq_flags);
- }
- mutex_unlock(&dev_priv->hw_mutex);
-
return ret;
}
status = inl(dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
outl(status, dev_priv->io_start + VMWGFX_IRQSTATUS_PORT);
}
-
-#define VMW_FENCE_WAIT_TIMEOUT 3*HZ;
-
-int vmw_fence_wait_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_vmw_fence_wait_arg *arg =
- (struct drm_vmw_fence_wait_arg *)data;
- unsigned long timeout;
-
- if (!arg->cookie_valid) {
- arg->cookie_valid = 1;
- arg->kernel_cookie = jiffies + VMW_FENCE_WAIT_TIMEOUT;
- }
-
- timeout = jiffies;
- if (time_after_eq(timeout, (unsigned long)arg->kernel_cookie))
- return -EBUSY;
-
- timeout = (unsigned long)arg->kernel_cookie - timeout;
- return vmw_wait_fence(vmw_priv(dev), true, arg->sequence, true, timeout);
-}
git.openpandora.org / pandora-kernel.git / blobdiff