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Diffstat (limited to 'linux/drm_drv.h')
-rw-r--r--linux/drm_drv.h217
1 files changed, 98 insertions, 119 deletions
diff --git a/linux/drm_drv.h b/linux/drm_drv.h
index d62156b3..801118e3 100644
--- a/linux/drm_drv.h
+++ b/linux/drm_drv.h
@@ -159,15 +159,8 @@ __setup( DRIVER_NAME "=", DRM_OPTIONS_FUNC );
#undef DRM_OPTIONS_FUNC
#endif
-/**
- * The default number of instances (minor numbers) to initialize.
- */
-#ifndef DRIVER_NUM_CARDS
-#define DRIVER_NUM_CARDS 1
-#endif
-
-static drm_device_t *DRM(device);
-static int *DRM(minor);
+#define MAX_DEVICES 4
+static drm_device_t DRM(device)[MAX_DEVICES];
static int DRM(numdevs) = 0;
DRIVER_FOPS;
@@ -534,52 +527,112 @@ static int DRM(takedown)( drm_device_t *dev )
return 0;
}
-/**
- * Figure out how many instances to initialize.
- *
- * \return number of cards found.
- *
- * Searches for every PCI card in \c DRIVER_CARD_LIST with matching vendor and device ids.
- */
-static int drm_count_cards(void)
+static drm_pci_id_list_t DRM(pciidlist)[] = {
+ DRIVER_PCI_IDS
+};
+
+static int probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
- int num = 0;
-#if defined(DRIVER_CARD_LIST)
- int i;
- drm_pci_list_t *l;
- u16 device, vendor;
- struct pci_dev *pdev = NULL;
+ drm_device_t *dev;
+#if __HAVE_CTX_BITMAP
+ int retcode;
#endif
+ int i;
+ char *desc = NULL;
DRM_DEBUG( "\n" );
-#if defined(DRIVER_COUNT_CARDS)
- num = DRIVER_COUNT_CARDS();
-#elif defined(DRIVER_CARD_LIST)
- for (i = 0, l = DRIVER_CARD_LIST; l[i].vendor != 0; i++) {
- pdev = NULL;
- vendor = l[i].vendor;
- device = l[i].device;
- if(device == 0xffff) device = PCI_ANY_ID;
- if(vendor == 0xffff) vendor = PCI_ANY_ID;
- while ((pdev = pci_find_device(vendor, device, pdev))) {
- num++;
+ for (i = 0; DRM(pciidlist)[i].vendor != 0; i++) {
+ if ((DRM(pciidlist)[i].vendor == pdev->vendor) &&
+ (DRM(pciidlist)[i].device == pdev->device)) {
+ desc = DRM(pciidlist)[i].name;
}
}
-#else
- num = DRIVER_NUM_CARDS;
+ if (desc == NULL)
+ return -ENODEV;
+
+ if (DRM(numdevs) >= MAX_DEVICES)
+ return -ENODEV;
+
+ dev = &(DRM(device)[DRM(numdevs)]);
+
+ memset( (void *)dev, 0, sizeof(*dev) );
+ dev->count_lock = SPIN_LOCK_UNLOCKED;
+ init_timer( &dev->timer );
+ sema_init( &dev->struct_sem, 1 );
+
+ if ((dev->minor = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0)
+ return -EPERM;
+ dev->device = MKDEV(DRM_MAJOR, dev->minor );
+ dev->name = DRIVER_NAME;
+ dev->pdev = pdev;
+#ifdef __alpha__
+ dev->hose = pdev->sysdata;
#endif
- DRM_DEBUG("numdevs = %d\n", num);
- return num;
+
+ DRIVER_PREINIT();
+
+#if __REALLY_HAVE_AGP
+ dev->agp = DRM(agp_init)();
+#if __MUST_HAVE_AGP
+ if ( dev->agp == NULL ) {
+ DRM_ERROR( "Cannot initialize the agpgart module.\n" );
+ DRM(stub_unregister)(dev->minor);
+ DRM(takedown)( dev );
+ return -ENOMEM;
+ }
+#endif
+#if __REALLY_HAVE_MTRR
+ if (dev->agp)
+ dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024,
+ MTRR_TYPE_WRCOMB,
+ 1 );
+#endif
+#endif
+
+#if __HAVE_CTX_BITMAP
+ retcode = DRM(ctxbitmap_init)( dev );
+ if( retcode ) {
+ DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
+ DRM(stub_unregister)(dev->minor);
+ DRM(takedown)( dev );
+ return retcode;
+ }
+#endif
+ DRM(numdevs)++; /* no errors, mark it reserved */
+
+ DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n",
+ DRIVER_NAME,
+ DRIVER_MAJOR,
+ DRIVER_MINOR,
+ DRIVER_PATCHLEVEL,
+ DRIVER_DATE,
+ dev->minor );
+
+ DRIVER_POSTINIT();
+
+ return 0;
+}
+
+static void __exit remove(struct pci_dev *dev)
+{
}
+static struct pci_driver driver = {
+ .name = DRIVER_NAME,
+ .id_table = NULL,
+ .probe = probe,
+ .remove = remove,
+};
+
/**
* Module initialization. Called via init_module at module load time, or via
* linux/init/main.c (this is not currently supported).
*
* \return zero on success or a negative number on failure.
*
- * Allocates and initialize an array of drm_device structures, and attempts to
+ * Initializes an array of drm_device structures, and attempts to
* initialize all available devices, using consecutive minors, registering the
* stubs and initializing the AGP device.
*
@@ -588,89 +641,15 @@ static int drm_count_cards(void)
*/
static int __init drm_init( void )
{
-
- drm_device_t *dev;
- int i;
-#if __HAVE_CTX_BITMAP
- int retcode;
-#endif
DRM_DEBUG( "\n" );
#ifdef MODULE
DRM(parse_options)( drm_opts );
#endif
- DRM(numdevs) = drm_count_cards();
- /* Force at least one instance. */
- if (DRM(numdevs) <= 0)
- DRM(numdevs) = 1;
-
- DRM(device) = kmalloc(sizeof(*DRM(device)) * DRM(numdevs), GFP_KERNEL);
- if (!DRM(device)) {
- return -ENOMEM;
- }
- DRM(minor) = kmalloc(sizeof(*DRM(minor)) * DRM(numdevs), GFP_KERNEL);
- if (!DRM(minor)) {
- kfree(DRM(device));
- return -ENOMEM;
- }
-
- DRIVER_PREINIT();
-
DRM(mem_init)();
- for (i = 0; i < DRM(numdevs); i++) {
- dev = &(DRM(device)[i]);
- memset( (void *)dev, 0, sizeof(*dev) );
- dev->count_lock = SPIN_LOCK_UNLOCKED;
- init_timer( &dev->timer );
- sema_init( &dev->struct_sem, 1 );
-
- if ((DRM(minor)[i] = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0)
- return -EPERM;
- dev->device = MKDEV(DRM_MAJOR, DRM(minor)[i] );
- dev->name = DRIVER_NAME;
-
-#if __REALLY_HAVE_AGP
- dev->agp = DRM(agp_init)();
-#if __MUST_HAVE_AGP
- if ( dev->agp == NULL ) {
- DRM_ERROR( "Cannot initialize the agpgart module.\n" );
- DRM(stub_unregister)(DRM(minor)[i]);
- DRM(takedown)( dev );
- return -ENOMEM;
- }
-#endif
-#if __REALLY_HAVE_MTRR
- if (dev->agp)
- dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size*1024*1024,
- MTRR_TYPE_WRCOMB,
- 1 );
-#endif
-#endif
-
-#if __HAVE_CTX_BITMAP
- retcode = DRM(ctxbitmap_init)( dev );
- if( retcode ) {
- DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
- DRM(stub_unregister)(DRM(minor)[i]);
- DRM(takedown)( dev );
- return retcode;
- }
-#endif
- DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n",
- DRIVER_NAME,
- DRIVER_MAJOR,
- DRIVER_MINOR,
- DRIVER_PATCHLEVEL,
- DRIVER_DATE,
- DRM(minor)[i] );
- }
-
- DRIVER_POSTINIT();
-
- return 0;
+ return pci_module_init (&driver);;
}
/**
@@ -687,12 +666,14 @@ static void __exit drm_cleanup( void )
DRM_DEBUG( "\n" );
+ pci_unregister_driver (&driver);
+
for (i = DRM(numdevs) - 1; i >= 0; i--) {
dev = &(DRM(device)[i]);
- if ( DRM(stub_unregister)(DRM(minor)[i]) ) {
+ if ( DRM(stub_unregister)(dev->minor) ) {
DRM_ERROR( "Cannot unload module\n" );
} else {
- DRM_DEBUG("minor %d unregistered\n", DRM(minor)[i]);
+ DRM_DEBUG("minor %d unregistered\n", dev->minor);
if (i == 0) {
DRM_INFO( "Module unloaded\n" );
}
@@ -722,8 +703,6 @@ static void __exit drm_cleanup( void )
#endif
}
DRIVER_POSTCLEANUP();
- kfree(DRM(minor));
- kfree(DRM(device));
DRM(numdevs) = 0;
}
@@ -795,7 +774,7 @@ int DRM(open)( struct inode *inode, struct file *filp )
int i;
for (i = 0; i < DRM(numdevs); i++) {
- if (minor(inode->i_rdev) == DRM(minor)[i]) {
+ if (minor(inode->i_rdev) == DRM(device)[i].minor) {
dev = &(DRM(device)[i]);
break;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 14:24:26 +0000