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authorEric Anholt <anholt@freebsd.org>2003-10-17 05:13:48 +0000
committerEric Anholt <anholt@freebsd.org>2003-10-17 05:13:48 +0000
commit2950f9e6823d43abae151966ae808d1a63e6659c (patch)
treeb7fbcbc101da31d02c5f3748568bc9caf54b13fa /linux-core
parentff58476011ba8fe72d65e884380d3d86710bfdd4 (diff)
- Move IRQ functions from drm_dma.h to new drm_irq.h and disentangle them
from __HAVE_DMA. This will be useful for adding vblank sync support to sis and tdfx. Rename dma_service to irq_handler, which is more accurately what it is. - Fix the #if _HAVE_DMA_IRQ in radeon, r128, mga, i810, i830, gamma to have the right number of underscores. This may have been a problem in the case that the server died without doing its DRM_IOCTL_CONTROL to uninit.
Diffstat (limited to 'linux-core')
-rw-r--r--linux-core/Doxyfile2
-rw-r--r--linux-core/drmP.h18
-rw-r--r--linux-core/drm_dma.c310
-rw-r--r--linux-core/drm_drv.c12
-rw-r--r--linux-core/drm_irq.c340
-rw-r--r--linux-core/i810_dma.c2
-rw-r--r--linux-core/i830_dma.c2
-rw-r--r--linux-core/i830_drv.c1
-rw-r--r--linux-core/i830_irq.c2
-rw-r--r--linux-core/mga_drv.c1
-rw-r--r--linux-core/r128_drv.c1
-rw-r--r--linux-core/radeon_drv.c1
12 files changed, 370 insertions, 322 deletions
diff --git a/linux-core/Doxyfile b/linux-core/Doxyfile
index 2d025898..4bef88f7 100644
--- a/linux-core/Doxyfile
+++ b/linux-core/Doxyfile
@@ -852,7 +852,7 @@ PREDEFINED = \
__HAVE_SG=0 \
__HAVE_PCI_DMA=0 \
__HAVE_DMA=1 \
- __HAVE_DMA_IRQ=1 \
+ __HAVE_IRQ=1 \
__HAVE_VBL_IRQ=1 \
__HAVE_SHARED_IRQ=1
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index f7137b25..ae499cae 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -102,8 +102,8 @@
#ifndef __HAVE_DMA
#define __HAVE_DMA 0
#endif
-#ifndef __HAVE_DMA_IRQ
-#define __HAVE_DMA_IRQ 0
+#ifndef __HAVE_IRQ
+#define __HAVE_IRQ 0
#endif
#ifndef __HAVE_DMA_WAITLIST
#define __HAVE_DMA_WAITLIST 0
@@ -937,12 +937,17 @@ extern int DRM(dma_setup)(drm_device_t *dev);
extern void DRM(dma_takedown)(drm_device_t *dev);
extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
extern void DRM(reclaim_buffers)( struct file *filp );
-#if __HAVE_DMA_IRQ
+#endif /* __HAVE_DMA */
+
+ /* IRQ support (drm_irq.h) */
+#if __HAVE_IRQ || __HAVE_DMA
extern int DRM(control)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg );
+#endif
+#if __HAVE_IRQ
extern int DRM(irq_install)( drm_device_t *dev, int irq );
extern int DRM(irq_uninstall)( drm_device_t *dev );
-extern irqreturn_t DRM(dma_service)( DRM_IRQ_ARGS );
+extern irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS );
extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
@@ -952,12 +957,11 @@ extern int DRM(wait_vblank)(struct inode *inode, struct file *filp,
extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq);
extern void DRM(vbl_send_signals)( drm_device_t *dev );
#endif
-#if __HAVE_DMA_IRQ_BH
-extern void DRM(dma_immediate_bh)( void *dev );
+#if __HAVE_IRQ_BH
+extern void DRM(irq_immediate_bh)( void *dev );
#endif
#endif
-#endif /* __HAVE_DMA */
#if __REALLY_HAVE_AGP
/* AGP/GART support (drm_agpsupport.h) */
diff --git a/linux-core/drm_dma.c b/linux-core/drm_dma.c
index aef84d4e..f36cd1c1 100644
--- a/linux-core/drm_dma.c
+++ b/linux-core/drm_dma.c
@@ -36,7 +36,6 @@
#define __NO_VERSION__
#include "drmP.h"
-#include <linux/interrupt.h> /* For task queue support */
#ifndef __HAVE_DMA_WAITQUEUE
#define __HAVE_DMA_WAITQUEUE 0
@@ -44,15 +43,6 @@
#ifndef __HAVE_DMA_RECLAIM
#define __HAVE_DMA_RECLAIM 0
#endif
-#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
#if __HAVE_DMA
@@ -215,303 +205,14 @@ void DRM(reclaim_buffers)( struct file *filp )
}
#endif
-
-
-
-#if __HAVE_DMA_IRQ
-
-/**
- * Install IRQ handler.
- *
- * \param dev DRM device.
- * \param irq IRQ number.
- *
- * Initializes the IRQ related data, and setups drm_device::vbl_queue. 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)( drm_device_t *dev, int irq )
-{
- int ret;
-
- if ( !irq )
- return -EINVAL;
-
- down( &dev->struct_sem );
-
- /* Driver must have been initialized */
- if ( !dev->dev_private ) {
- up( &dev->struct_sem );
- return -EINVAL;
- }
-
- if ( dev->irq ) {
- up( &dev->struct_sem );
- return -EBUSY;
- }
- dev->irq = irq;
- up( &dev->struct_sem );
-
- DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
-
- dev->context_flag = 0;
- dev->interrupt_flag = 0;
- dev->dma_flag = 0;
-
- dev->dma->next_buffer = NULL;
- dev->dma->next_queue = NULL;
- dev->dma->this_buffer = NULL;
-
-#if __HAVE_DMA_IRQ_BH
-#if !HAS_WORKQUEUE
- INIT_LIST_HEAD( &dev->tq.list );
- dev->tq.sync = 0;
- dev->tq.routine = DRM(dma_immediate_bh);
- dev->tq.data = dev;
-#else
- INIT_WORK(&dev->work, DRM(dma_immediate_bh), dev);
-#endif
-#endif
-
-#if __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
-
- /* Before installing handler */
- DRM(driver_irq_preinstall)(dev);
-
- /* Install handler */
- ret = request_irq( dev->irq, DRM(dma_service),
- DRM_IRQ_TYPE, dev->devname, dev );
- if ( ret < 0 ) {
- down( &dev->struct_sem );
- dev->irq = 0;
- up( &dev->struct_sem );
- return ret;
- }
-
- /* After installing handler */
- DRM(driver_irq_postinstall)(dev);
-
- return 0;
-}
-
-/**
- * Uninstall the IRQ handler.
- *
- * \param dev DRM device.
- *
- * Calls the driver's \c DRM(driver_irq_uninstall)() function, and stops the irq.
- */
-int DRM(irq_uninstall)( drm_device_t *dev )
-{
- int irq;
-
- down( &dev->struct_sem );
- irq = dev->irq;
- dev->irq = 0;
- up( &dev->struct_sem );
-
- if ( !irq )
- return -EINVAL;
-
- DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
-
- DRM(driver_irq_uninstall)( dev );
-
- free_irq( irq, dev );
-
- return 0;
-}
-
-/**
- * IRQ control ioctl.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg user argument, pointing to a drm_control structure.
- * \return zero on success or a negative number on failure.
- *
- * Calls irq_install() or irq_uninstall() according to \p arg.
+#if !__HAVE_IRQ
+/* This stub DRM_IOCTL_CONTROL handler is for the drivers that used to require
+ * IRQs for DMA but no longer do. It maintains compatibility with the X Servers
+ * that try to use the control ioctl by simply returning success.
*/
int DRM(control)( struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg )
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_control_t ctl;
-
- if ( copy_from_user( &ctl, (drm_control_t *)arg, sizeof(ctl) ) )
- return -EFAULT;
-
- switch ( ctl.func ) {
- case DRM_INST_HANDLER:
- return DRM(irq_install)( dev, ctl.irq );
- case DRM_UNINST_HANDLER:
- return DRM(irq_uninstall)( dev );
- default:
- return -EINVAL;
- }
-}
-
-#if __HAVE_VBL_IRQ
-
-/**
- * Wait for VBLANK.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param data user argument, pointing to a drm_wait_vblank structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the IRQ is installed.
- *
- * If a signal is requested checks if this task has already scheduled the same signal
- * for the same vblank sequence number - nothing to be done in
- * that case. If the number of tasks waiting for the interrupt exceeds 100 the
- * function fails. Otherwise adds a new entry to drm_device::vbl_sigs for this
- * task.
- *
- * If a signal is not requested, then calls vblank_wait().
- */
-int DRM(wait_vblank)( DRM_IOCTL_ARGS )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_wait_vblank_t vblwait;
- struct timeval now;
- int ret = 0;
- unsigned int flags;
-
- if (!dev->irq)
- return -EINVAL;
-
- DRM_COPY_FROM_USER_IOCTL( vblwait, (drm_wait_vblank_t *)data,
- sizeof(vblwait) );
-
- switch ( vblwait.request.type & ~_DRM_VBLANK_FLAGS_MASK ) {
- case _DRM_VBLANK_RELATIVE:
- vblwait.request.sequence += atomic_read( &dev->vbl_received );
- vblwait.request.type &= ~_DRM_VBLANK_RELATIVE;
- case _DRM_VBLANK_ABSOLUTE:
- break;
- default:
- return -EINVAL;
- }
-
- flags = vblwait.request.type & _DRM_VBLANK_FLAGS_MASK;
-
- if ( flags & _DRM_VBLANK_SIGNAL ) {
- unsigned long irqflags;
- drm_vbl_sig_t *vbl_sig;
-
- vblwait.reply.sequence = atomic_read( &dev->vbl_received );
-
- spin_lock_irqsave( &dev->vbl_lock, irqflags );
-
- /* Check if this task has already scheduled the same signal
- * for the same vblank sequence number; nothing to be done in
- * that case
- */
- list_for_each_entry( vbl_sig, &dev->vbl_sigs.head, head ) {
- 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 );
- goto done;
- }
- }
-
- if ( dev->vbl_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_MALLOC( sizeof( drm_vbl_sig_t ) ) ) ) {
- return -ENOMEM;
- }
-
- memset( (void *)vbl_sig, 0, sizeof(*vbl_sig) );
-
- 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 );
-
- list_add_tail( (struct list_head *) vbl_sig, &dev->vbl_sigs.head );
-
- spin_unlock_irqrestore( &dev->vbl_lock, irqflags );
- } else {
- ret = DRM(vblank_wait)( dev, &vblwait.request.sequence );
-
- do_gettimeofday( &now );
- vblwait.reply.tval_sec = now.tv_sec;
- vblwait.reply.tval_usec = now.tv_usec;
- }
-
-done:
- DRM_COPY_TO_USER_IOCTL( (drm_wait_vblank_t *)data, vblwait,
- sizeof(vblwait) );
-
- return ret;
-}
-
-/**
- * Send the VBLANK signals.
- *
- * \param dev DRM device.
- *
- * 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)( drm_device_t *dev )
-{
- struct list_head *list, *tmp;
- drm_vbl_sig_t *vbl_sig;
- unsigned int vbl_seq = atomic_read( &dev->vbl_received );
- unsigned long flags;
-
- spin_lock_irqsave( &dev->vbl_lock, flags );
-
- list_for_each_safe( list, tmp, &dev->vbl_sigs.head ) {
- vbl_sig = list_entry( list, drm_vbl_sig_t, 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 );
-
- list_del( list );
-
- DRM_FREE( vbl_sig, sizeof(*vbl_sig) );
-
- dev->vbl_pending--;
- }
- }
-
- spin_unlock_irqrestore( &dev->vbl_lock, flags );
-}
-
-#endif /* __HAVE_VBL_IRQ */
-
-#else
-
-int DRM(control)( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
drm_control_t ctl;
if ( copy_from_user( &ctl, (drm_control_t *)arg, sizeof(ctl) ) )
@@ -525,7 +226,6 @@ int DRM(control)( struct inode *inode, struct file *filp,
return -EINVAL;
}
}
-
-#endif /* __HAVE_DMA_IRQ */
+#endif
#endif /* __HAVE_DMA */
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 801118e3..d1bad56a 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -58,8 +58,8 @@
#ifndef __HAVE_CTX_BITMAP
#define __HAVE_CTX_BITMAP 0
#endif
-#ifndef __HAVE_DMA_IRQ
-#define __HAVE_DMA_IRQ 0
+#ifndef __HAVE_IRQ
+#define __HAVE_IRQ 0
#endif
#ifndef __HAVE_DMA_QUEUE
#define __HAVE_DMA_QUEUE 0
@@ -215,9 +215,9 @@ static drm_ioctl_desc_t DRM(ioctls)[] = {
[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 },
-
- /* The DRM_IOCTL_DMA ioctl should be defined by the driver.
- */
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
+#endif
+#if __HAVE_IRQ || __HAVE_DMA
[DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 },
#endif
@@ -384,7 +384,7 @@ static int DRM(takedown)( drm_device_t *dev )
DRM_DEBUG( "\n" );
DRIVER_PRETAKEDOWN();
-#if __HAVE_DMA_IRQ
+#if __HAVE_IRQ
if ( dev->irq ) DRM(irq_uninstall)( dev );
#endif
diff --git a/linux-core/drm_irq.c b/linux-core/drm_irq.c
new file mode 100644
index 00000000..322e5717
--- /dev/null
+++ b/linux-core/drm_irq.c
@@ -0,0 +1,340 @@
+/**
+ * \file drm_irq.h
+ * IRQ support
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#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
+
+#if __HAVE_IRQ
+
+/**
+ * Install IRQ handler.
+ *
+ * \param dev DRM device.
+ * \param irq IRQ number.
+ *
+ * Initializes the IRQ related data, and setups drm_device::vbl_queue. 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)( drm_device_t *dev, int irq )
+{
+ int ret;
+
+ if ( !irq )
+ return -EINVAL;
+
+ down( &dev->struct_sem );
+
+ /* Driver must have been initialized */
+ if ( !dev->dev_private ) {
+ up( &dev->struct_sem );
+ return -EINVAL;
+ }
+
+ if ( dev->irq ) {
+ up( &dev->struct_sem );
+ return -EBUSY;
+ }
+ dev->irq = irq;
+ up( &dev->struct_sem );
+
+ DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
+
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+
+ dev->dma->next_buffer = NULL;
+ dev->dma->next_queue = NULL;
+ dev->dma->this_buffer = NULL;
+
+#if __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
+
+#if __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
+
+ /* Before installing handler */
+ DRM(driver_irq_preinstall)(dev);
+
+ /* Install handler */
+ ret = request_irq( dev->irq, DRM(irq_handler),
+ DRM_IRQ_TYPE, dev->devname, dev );
+ if ( ret < 0 ) {
+ down( &dev->struct_sem );
+ dev->irq = 0;
+ up( &dev->struct_sem );
+ return ret;
+ }
+
+ /* After installing handler */
+ DRM(driver_irq_postinstall)(dev);
+
+ return 0;
+}
+
+/**
+ * Uninstall the IRQ handler.
+ *
+ * \param dev DRM device.
+ *
+ * Calls the driver's \c DRM(driver_irq_uninstall)() function, and stops the irq.
+ */
+int DRM(irq_uninstall)( drm_device_t *dev )
+{
+ int irq;
+
+ down( &dev->struct_sem );
+ irq = dev->irq;
+ dev->irq = 0;
+ up( &dev->struct_sem );
+
+ if ( !irq )
+ return -EINVAL;
+
+ DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
+
+ DRM(driver_irq_uninstall)( dev );
+
+ free_irq( irq, dev );
+
+ return 0;
+}
+
+/**
+ * IRQ control ioctl.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_control structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Calls irq_install() or irq_uninstall() according to \p arg.
+ */
+int DRM(control)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_control_t ctl;
+
+ if ( copy_from_user( &ctl, (drm_control_t *)arg, sizeof(ctl) ) )
+ return -EFAULT;
+
+ switch ( ctl.func ) {
+ case DRM_INST_HANDLER:
+ return DRM(irq_install)( dev, ctl.irq );
+ case DRM_UNINST_HANDLER:
+ return DRM(irq_uninstall)( dev );
+ default:
+ return -EINVAL;
+ }
+}
+
+#if __HAVE_VBL_IRQ
+
+/**
+ * Wait for VBLANK.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param data user argument, pointing to a drm_wait_vblank structure.
+ * \return zero on success or a negative number on failure.
+ *
+ * Verifies the IRQ is installed.
+ *
+ * If a signal is requested checks if this task has already scheduled the same signal
+ * for the same vblank sequence number - nothing to be done in
+ * that case. If the number of tasks waiting for the interrupt exceeds 100 the
+ * function fails. Otherwise adds a new entry to drm_device::vbl_sigs for this
+ * task.
+ *
+ * If a signal is not requested, then calls vblank_wait().
+ */
+int DRM(wait_vblank)( DRM_IOCTL_ARGS )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_wait_vblank_t vblwait;
+ struct timeval now;
+ int ret = 0;
+ unsigned int flags;
+
+ if (!dev->irq)
+ return -EINVAL;
+
+ DRM_COPY_FROM_USER_IOCTL( vblwait, (drm_wait_vblank_t *)data,
+ sizeof(vblwait) );
+
+ switch ( vblwait.request.type & ~_DRM_VBLANK_FLAGS_MASK ) {
+ case _DRM_VBLANK_RELATIVE:
+ vblwait.request.sequence += atomic_read( &dev->vbl_received );
+ vblwait.request.type &= ~_DRM_VBLANK_RELATIVE;
+ case _DRM_VBLANK_ABSOLUTE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ flags = vblwait.request.type & _DRM_VBLANK_FLAGS_MASK;
+
+ if ( flags & _DRM_VBLANK_SIGNAL ) {
+ unsigned long irqflags;
+ drm_vbl_sig_t *vbl_sig;
+
+ vblwait.reply.sequence = atomic_read( &dev->vbl_received );
+
+ spin_lock_irqsave( &dev->vbl_lock, irqflags );
+
+ /* Check if this task has already scheduled the same signal
+ * for the same vblank sequence number; nothing to be done in
+ * that case
+ */
+ list_for_each_entry( vbl_sig, &dev->vbl_sigs.head, head ) {
+ 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 );
+ goto done;
+ }
+ }
+
+ if ( dev->vbl_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_MALLOC( sizeof( drm_vbl_sig_t ) ) ) ) {
+ return -ENOMEM;
+ }
+
+ memset( (void *)vbl_sig, 0, sizeof(*vbl_sig) );
+
+ 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 );
+
+ list_add_tail( (struct list_head *) vbl_sig, &dev->vbl_sigs.head );
+
+ spin_unlock_irqrestore( &dev->vbl_lock, irqflags );
+ } else {
+ ret = DRM(vblank_wait)( dev, &vblwait.request.sequence );
+
+ do_gettimeofday( &now );
+ vblwait.reply.tval_sec = now.tv_sec;
+ vblwait.reply.tval_usec = now.tv_usec;
+ }
+
+done:
+ DRM_COPY_TO_USER_IOCTL( (drm_wait_vblank_t *)data, vblwait,
+ sizeof(vblwait) );
+
+ return ret;
+}
+
+/**
+ * Send the VBLANK signals.
+ *
+ * \param dev DRM device.
+ *
+ * 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)( drm_device_t *dev )
+{
+ struct list_head *list, *tmp;
+ drm_vbl_sig_t *vbl_sig;
+ unsigned int vbl_seq = atomic_read( &dev->vbl_received );
+ unsigned long flags;
+
+ spin_lock_irqsave( &dev->vbl_lock, flags );
+
+ list_for_each_safe( list, tmp, &dev->vbl_sigs.head ) {
+ vbl_sig = list_entry( list, drm_vbl_sig_t, 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 );
+
+ list_del( list );
+
+ DRM_FREE( vbl_sig, sizeof(*vbl_sig) );
+
+ dev->vbl_pending--;
+ }
+ }
+
+ spin_unlock_irqrestore( &dev->vbl_lock, flags );
+}
+
+#endif /* __HAVE_VBL_IRQ */
+
+#endif /* __HAVE_IRQ */
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index 430ee52d..1eeb4a3f 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -239,7 +239,7 @@ int i810_dma_cleanup(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
-#if _HAVE_DMA_IRQ
+#if __HAVE_IRQ
/* Make sure interrupts are disabled here because the uninstall ioctl
* may not have been called from userspace and after dev_private
* is freed, it's too late.
diff --git a/linux-core/i830_dma.c b/linux-core/i830_dma.c
index 48b64d7c..422f3ad5 100644
--- a/linux-core/i830_dma.c
+++ b/linux-core/i830_dma.c
@@ -238,7 +238,7 @@ int i830_dma_cleanup(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
-#if _HAVE_DMA_IRQ
+#if __HAVE_IRQ
/* Make sure interrupts are disabled here because the uninstall ioctl
* may not have been called from userspace and after dev_private
* is freed, it's too late.
diff --git a/linux-core/i830_drv.c b/linux-core/i830_drv.c
index 0735c94d..2f4e8157 100644
--- a/linux-core/i830_drv.c
+++ b/linux-core/i830_drv.c
@@ -50,6 +50,7 @@
#include "drm_fops.h"
#include "drm_init.h"
#include "drm_ioctl.h"
+#include "drm_irq.h"
#include "drm_lock.h"
#include "drm_memory.h"
#include "drm_proc.h"
diff --git a/linux-core/i830_irq.c b/linux-core/i830_irq.c
index d2aabf33..6d45cda8 100644
--- a/linux-core/i830_irq.c
+++ b/linux-core/i830_irq.c
@@ -36,7 +36,7 @@
#include <linux/delay.h>
-irqreturn_t DRM(dma_service)( DRM_IRQ_ARGS )
+irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS )
{
drm_device_t *dev = (drm_device_t *)arg;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
diff --git a/linux-core/mga_drv.c b/linux-core/mga_drv.c
index f0d4935d..6bcad048 100644
--- a/linux-core/mga_drv.c
+++ b/linux-core/mga_drv.c
@@ -45,6 +45,7 @@
#include "drm_fops.h"
#include "drm_init.h"
#include "drm_ioctl.h"
+#include "drm_irq.h"
#include "drm_lock.h"
#include "drm_memory.h"
#include "drm_proc.h"
diff --git a/linux-core/r128_drv.c b/linux-core/r128_drv.c
index e2e42690..1dee1615 100644
--- a/linux-core/r128_drv.c
+++ b/linux-core/r128_drv.c
@@ -47,6 +47,7 @@
#include "drm_fops.h"
#include "drm_init.h"
#include "drm_ioctl.h"
+#include "drm_irq.h"
#include "drm_lock.h"
#include "drm_memory.h"
#include "drm_proc.h"
diff --git a/linux-core/radeon_drv.c b/linux-core/radeon_drv.c
index 6152b8a5..74e32df0 100644
--- a/linux-core/radeon_drv.c
+++ b/linux-core/radeon_drv.c
@@ -48,6 +48,7 @@
#include "drm_fops.h"
#include "drm_init.h"
#include "drm_ioctl.h"
+#include "drm_irq.h"
#include "drm_lock.h"
#include "drm_memory.h"
#include "drm_proc.h"