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Diffstat (limited to 'linux/drm_irq.h')
-rw-r--r--linux/drm_irq.h88
1 files changed, 43 insertions, 45 deletions
diff --git a/linux/drm_irq.h b/linux/drm_irq.h
index aac0b1b0..73a62e68 100644
--- a/linux/drm_irq.h
+++ b/linux/drm_irq.h
@@ -38,16 +38,6 @@
#include <linux/interrupt.h> /* For task queue support */
-#ifndef __HAVE_SHARED_IRQ
-#define __HAVE_SHARED_IRQ 0
-#endif
-
-#if __HAVE_SHARED_IRQ
-#define DRM_IRQ_TYPE SA_SHIRQ
-#else
-#define DRM_IRQ_TYPE 0
-#endif
-
/**
* Get interrupt from bus id.
*
@@ -69,6 +59,9 @@ int DRM(irq_by_busid)(struct inode *inode, struct file *filp,
drm_irq_busid_t __user *argp = (void __user *)arg;
drm_irq_busid_t p;
+ if (!(dev->driver_features & DRIVER_HAVE_IRQ))
+ return -EINVAL;
+
if (copy_from_user(&p, argp, sizeof(p)))
return -EFAULT;
@@ -87,8 +80,6 @@ int DRM(irq_by_busid)(struct inode *inode, struct file *filp,
return 0;
}
-#if __HAVE_IRQ
-
/**
* Install IRQ handler.
*
@@ -102,7 +93,11 @@ int DRM(irq_by_busid)(struct inode *inode, struct file *filp,
int DRM(irq_install)( drm_device_t *dev )
{
int ret;
-
+ unsigned long sh_flags=0;
+
+ if (!(dev->driver_features & DRIVER_HAVE_IRQ ))
+ return -EINVAL;
+
if ( dev->irq == 0 )
return -EINVAL;
@@ -123,39 +118,29 @@ int DRM(irq_install)( drm_device_t *dev )
DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq );
-#if __HAVE_DMA
dev->dma->next_buffer = NULL;
dev->dma->next_queue = NULL;
dev->dma->this_buffer = NULL;
-#endif
-
-#ifdef __HAVE_IRQ_BH
-#if !HAS_WORKQUEUE
- INIT_LIST_HEAD( &dev->tq.list );
- dev->tq.sync = 0;
- dev->tq.routine = DRM(irq_immediate_bh);
- dev->tq.data = dev;
-#else
- INIT_WORK(&dev->work, DRM(irq_immediate_bh), dev);
-#endif
-#endif
-
-#ifdef __HAVE_VBL_IRQ
- init_waitqueue_head(&dev->vbl_queue);
- spin_lock_init( &dev->vbl_lock );
-
- INIT_LIST_HEAD( &dev->vbl_sigs.head );
-
- dev->vbl_pending = 0;
-#endif
+ if (dev->driver_features & DRIVER_IRQ_VBL) {
+ init_waitqueue_head(&dev->vbl_queue);
+
+ spin_lock_init( &dev->vbl_lock );
+
+ INIT_LIST_HEAD( &dev->vbl_sigs.head );
+
+ dev->vbl_pending = 0;
+ }
/* Before installing handler */
- DRM(driver_irq_preinstall)(dev);
+ dev->fn_tbl.irq_preinstall(dev);
/* Install handler */
- ret = request_irq( dev->irq, DRM(irq_handler),
- DRM_IRQ_TYPE, dev->devname, dev );
+ if (dev->driver_features & DRIVER_IRQ_SHARED)
+ sh_flags = SA_SHIRQ;
+
+ ret = request_irq( dev->irq, dev->fn_tbl.irq_handler,
+ sh_flags, dev->devname, dev );
if ( ret < 0 ) {
down( &dev->struct_sem );
dev->irq_enabled = 0;
@@ -164,7 +149,7 @@ int DRM(irq_install)( drm_device_t *dev )
}
/* After installing handler */
- DRM(driver_irq_postinstall)(dev);
+ dev->fn_tbl.irq_postinstall(dev);
return 0;
}
@@ -180,6 +165,9 @@ int DRM(irq_uninstall)( drm_device_t *dev )
{
int irq_enabled;
+ if (!(dev->driver_features & DRIVER_HAVE_IRQ ))
+ return -EINVAL;
+
down( &dev->struct_sem );
irq_enabled = dev->irq_enabled;
dev->irq_enabled = 0;
@@ -190,7 +178,7 @@ int DRM(irq_uninstall)( drm_device_t *dev )
DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq );
- DRM(driver_irq_uninstall)( dev );
+ dev->fn_tbl.irq_uninstall(dev);
free_irq( dev->irq, dev );
@@ -214,25 +202,33 @@ int DRM(control)( struct inode *inode, struct file *filp,
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_control_t ctl;
+
+ /* if we haven't dma then no need for this control */
+ if (!(dev->driver_features & DRIVER_HAVE_DMA))
+ return -EINVAL;
+
+ /* 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, (drm_control_t __user *)arg, sizeof(ctl) ) )
return -EFAULT;
switch ( ctl.func ) {
case DRM_INST_HANDLER:
+ if (!(dev->driver_features & DRIVER_HAVE_IRQ))
+ return 0;
if (dev->if_version < DRM_IF_VERSION(1, 2) &&
ctl.irq != dev->irq)
return -EINVAL;
return DRM(irq_install)( dev );
case DRM_UNINST_HANDLER:
+ if (!(dev->driver_features & DRIVER_HAVE_IRQ))
+ return 0;
return DRM(irq_uninstall)( dev );
default:
return -EINVAL;
}
}
-#ifdef __HAVE_VBL_IRQ
-
/**
* Wait for VBLANK.
*
@@ -262,6 +258,9 @@ int DRM(wait_vblank)( DRM_IOCTL_ARGS )
int ret = 0;
unsigned int flags;
+ if (!(dev->driver_features & DRIVER_IRQ_VBL))
+ return -EINVAL;
+
if (!dev->irq)
return -EINVAL;
@@ -326,7 +325,8 @@ int DRM(wait_vblank)( DRM_IOCTL_ARGS )
spin_unlock_irqrestore( &dev->vbl_lock, irqflags );
} else {
- ret = DRM(vblank_wait)( dev, &vblwait.request.sequence );
+ if (dev->fn_tbl.vblank_wait)
+ ret = dev->fn_tbl.vblank_wait( dev, &vblwait.request.sequence );
do_gettimeofday( &now );
vblwait.reply.tval_sec = now.tv_sec;
@@ -374,6 +374,4 @@ void DRM(vbl_send_signals)( drm_device_t *dev )
spin_unlock_irqrestore( &dev->vbl_lock, flags );
}
-#endif /* __HAVE_VBL_IRQ */
-#endif /* __HAVE_IRQ */