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path: root/drivers/char/drm/drm_irq.c
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Diffstat (limited to 'drivers/char/drm/drm_irq.c')
-rw-r--r--drivers/char/drm/drm_irq.c89
1 files changed, 37 insertions, 52 deletions
diff --git a/drivers/char/drm/drm_irq.c b/drivers/char/drm/drm_irq.c
index 9fdc295..05eae63 100644
--- a/drivers/char/drm/drm_irq.c
+++ b/drivers/char/drm/drm_irq.c
@@ -50,29 +50,24 @@
* This IOCTL is deprecated, and will now return EINVAL for any busid not equal
* to that of the device that this DRM instance attached to.
*/
-int drm_irq_by_busid(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_irq_by_busid(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_irq_busid __user *argp = (void __user *)arg;
- struct drm_irq_busid p;
+ struct drm_irq_busid *p = data;
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return -EINVAL;
- if (copy_from_user(&p, argp, sizeof(p)))
- return -EFAULT;
-
- if ((p.busnum >> 8) != drm_get_pci_domain(dev) ||
- (p.busnum & 0xff) != dev->pdev->bus->number ||
- p.devnum != PCI_SLOT(dev->pdev->devfn) || p.funcnum != PCI_FUNC(dev->pdev->devfn))
+ if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
+ (p->busnum & 0xff) != dev->pdev->bus->number ||
+ p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
return -EINVAL;
- p.irq = dev->irq;
+ p->irq = dev->irq;
+
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
+ p->irq);
- DRM_DEBUG("%d:%d:%d => IRQ %d\n", p.busnum, p.devnum, p.funcnum, p.irq);
- if (copy_to_user(argp, &p, sizeof(p)))
- return -EFAULT;
return 0;
}
@@ -193,23 +188,20 @@ EXPORT_SYMBOL(drm_irq_uninstall);
*
* Calls irq_install() or irq_uninstall() according to \p arg.
*/
-int drm_control(struct inode *inode, struct drm_file *file_priv,
- unsigned int cmd, unsigned long arg)
+int drm_control(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- struct drm_control ctl;
+ struct drm_control *ctl = data;
/* if we haven't irq we fallback for compatibility reasons - this used to be a separate function in drm_dma.h */
- if (copy_from_user(&ctl, (struct drm_control __user *) arg, sizeof(ctl)))
- return -EFAULT;
- switch (ctl.func) {
+ switch (ctl->func) {
case DRM_INST_HANDLER:
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return 0;
if (dev->if_version < DRM_IF_VERSION(1, 2) &&
- ctl.irq != dev->irq)
+ ctl->irq != dev->irq)
return -EINVAL;
return drm_irq_install(dev);
case DRM_UNINST_HANDLER:
@@ -240,30 +232,25 @@ int drm_control(struct inode *inode, struct drm_file *file_priv,
*
* If a signal is not requested, then calls vblank_wait().
*/
-int drm_wait_vblank(DRM_IOCTL_ARGS)
+int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
- struct drm_device *dev = file_priv->head->dev;
- union drm_wait_vblank __user *argp = (void __user *)data;
- union drm_wait_vblank vblwait;
+ union drm_wait_vblank *vblwait = data;
struct timeval now;
int ret = 0;
unsigned int flags, seq;
- if (!dev->irq)
+ if ((!dev->irq) || (!dev->irq_enabled))
return -EINVAL;
- if (copy_from_user(&vblwait, argp, sizeof(vblwait)))
- return -EFAULT;
-
- if (vblwait.request.type &
+ if (vblwait->request.type &
~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) {
DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n",
- vblwait.request.type,
+ vblwait->request.type,
(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK));
return -EINVAL;
}
- flags = vblwait.request.type & _DRM_VBLANK_FLAGS_MASK;
+ flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
if (!drm_core_check_feature(dev, (flags & _DRM_VBLANK_SECONDARY) ?
DRIVER_IRQ_VBL2 : DRIVER_IRQ_VBL))
@@ -272,10 +259,10 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
seq = atomic_read((flags & _DRM_VBLANK_SECONDARY) ? &dev->vbl_received2
: &dev->vbl_received);
- switch (vblwait.request.type & _DRM_VBLANK_TYPES_MASK) {
+ switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
case _DRM_VBLANK_RELATIVE:
- vblwait.request.sequence += seq;
- vblwait.request.type &= ~_DRM_VBLANK_RELATIVE;
+ vblwait->request.sequence += seq;
+ vblwait->request.type &= ~_DRM_VBLANK_RELATIVE;
case _DRM_VBLANK_ABSOLUTE:
break;
default:
@@ -283,8 +270,8 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
}
if ((flags & _DRM_VBLANK_NEXTONMISS) &&
- (seq - vblwait.request.sequence) <= (1<<23)) {
- vblwait.request.sequence = seq + 1;
+ (seq - vblwait->request.sequence) <= (1<<23)) {
+ vblwait->request.sequence = seq + 1;
}
if (flags & _DRM_VBLANK_SIGNAL) {
@@ -300,12 +287,13 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
* that case
*/
list_for_each_entry(vbl_sig, vbl_sigs, head) {
- if (vbl_sig->sequence == vblwait.request.sequence
- && vbl_sig->info.si_signo == vblwait.request.signal
+ if (vbl_sig->sequence == vblwait->request.sequence
+ && vbl_sig->info.si_signo ==
+ vblwait->request.signal
&& vbl_sig->task == current) {
spin_unlock_irqrestore(&dev->vbl_lock,
irqflags);
- vblwait.reply.sequence = seq;
+ vblwait->reply.sequence = seq;
goto done;
}
}
@@ -327,8 +315,8 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
memset((void *)vbl_sig, 0, sizeof(*vbl_sig));
- vbl_sig->sequence = vblwait.request.sequence;
- vbl_sig->info.si_signo = vblwait.request.signal;
+ vbl_sig->sequence = vblwait->request.sequence;
+ vbl_sig->info.si_signo = vblwait->request.signal;
vbl_sig->task = current;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
@@ -337,25 +325,22 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
- vblwait.reply.sequence = seq;
+ vblwait->reply.sequence = seq;
} else {
if (flags & _DRM_VBLANK_SECONDARY) {
if (dev->driver->vblank_wait2)
- ret = dev->driver->vblank_wait2(dev, &vblwait.request.sequence);
+ ret = dev->driver->vblank_wait2(dev, &vblwait->request.sequence);
} else if (dev->driver->vblank_wait)
ret =
dev->driver->vblank_wait(dev,
- &vblwait.request.sequence);
+ &vblwait->request.sequence);
do_gettimeofday(&now);
- vblwait.reply.tval_sec = now.tv_sec;
- vblwait.reply.tval_usec = now.tv_usec;
+ vblwait->reply.tval_sec = now.tv_sec;
+ vblwait->reply.tval_usec = now.tv_usec;
}
done:
- if (copy_to_user(argp, &vblwait, sizeof(vblwait)))
- return -EFAULT;
-
return ret;
}
generated by cgit v1.1 at 2024-12-26 04:16:42 +0000