Add the code for the DRM, based on the code from the drm-kmod port.

This is not hooked up yet, that will come later.

Approved by:	des

1 files changed, 323 insertions, 0 deletions

diff --git a/sys/dev/drm/drm_ioctl.h b/sys/dev/drm/drm_ioctl.h
new file mode 100644
index 0000000..24e55e9
--- /dev/null
+++ b/sys/dev/drm/drm_ioctl.h
@@ -0,0 +1,323 @@
+/* drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*-
+ * Created: Fri Jan  8 09:01:26 1999 by faith@valinux.com
+ *
+ * Copyright 1999 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.
+ *
+ * Authors:
+ *    Rickard E. (Rik) Faith <faith@valinux.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ *
+ * $FreeBSD$
+ */
+
+#define __NO_VERSION__
+#include "dev/drm/drmP.h"
+#ifdef __FreeBSD__
+#include <sys/bus.h>
+#include <pci/pcivar.h>
+#endif /* __FreeBSD__ */
+
+int DRM(irq_busid)( DRM_OS_IOCTL )
+{
+	drm_irq_busid_t id;
+#ifdef __linux__
+	struct pci_dev	*dev;
+#endif /* __linux__ */
+#ifdef __FreeBSD__
+	devclass_t pci;
+	device_t bus, dev;
+	device_t *kids;
+	int error, i, num_kids;
+#endif /* __FreeBSD__ */
+
+	DRM_OS_KRNFROMUSR( id, (drm_irq_busid_t *)data, sizeof(id) );
+
+#ifdef __linux__
+	dev = pci_find_slot(id.busnum, PCI_DEVFN(id.devnum, id.funcnum));
+	if (dev) id.irq = dev->irq;
+	else	 id.irq = 0;
+#endif /* __linux__ */
+#ifdef __FreeBSD__
+	pci = devclass_find("pci");
+	if (!pci)
+		return ENOENT;
+	bus = devclass_get_device(pci, id.busnum);
+	if (!bus)
+		return ENOENT;
+	error = device_get_children(bus, &kids, &num_kids);
+	if (error)
+		return error;
+
+	dev = 0;
+	for (i = 0; i < num_kids; i++) {
+		dev = kids[i];
+		if (pci_get_slot(dev) == id.devnum
+		    && pci_get_function(dev) == id.funcnum)
+			break;
+	}
+
+	free(kids, M_TEMP);
+
+	if (i != num_kids)
+		id.irq = pci_get_irq(dev);
+	else
+		id.irq = 0;
+#endif /* __FreeBSD__ */
+	DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+		  id.busnum, id.devnum, id.funcnum, id.irq);
+	
+	DRM_OS_KRNTOUSR( (drm_irq_busid_t *)data, id, sizeof(id) );
+
+	return 0;
+}
+
+int DRM(getunique)( DRM_OS_IOCTL )
+{
+	DRM_OS_DEVICE;
+	drm_unique_t	 u;
+
+	DRM_OS_KRNFROMUSR( u, (drm_unique_t *)data, sizeof(u) );
+
+	if (u.unique_len >= dev->unique_len) {
+		if (DRM_OS_COPYTOUSR(u.unique, dev->unique, dev->unique_len))
+			DRM_OS_RETURN(EFAULT);
+	}
+	u.unique_len = dev->unique_len;
+
+	DRM_OS_KRNTOUSR( (drm_unique_t *)data, u, sizeof(u) );
+
+	return 0;
+}
+
+int DRM(setunique)( DRM_OS_IOCTL )
+{
+	DRM_OS_DEVICE;
+	drm_unique_t	 u;
+
+	if (dev->unique_len || dev->unique)
+		DRM_OS_RETURN(EBUSY);
+
+	DRM_OS_KRNFROMUSR( u, (drm_unique_t *)data, sizeof(u) );
+
+	if (!u.unique_len || u.unique_len > 1024)
+		DRM_OS_RETURN(EINVAL);
+
+	dev->unique_len = u.unique_len;
+	dev->unique	= DRM(alloc)(u.unique_len + 1, DRM_MEM_DRIVER);
+
+	if(!dev->unique) DRM_OS_RETURN(ENOMEM);
+
+	if (DRM_OS_COPYFROMUSR(dev->unique, u.unique, dev->unique_len))
+		DRM_OS_RETURN(EFAULT);
+
+	dev->unique[dev->unique_len] = '\0';
+
+	dev->devname = DRM(alloc)(strlen(dev->name) + strlen(dev->unique) + 2,
+				  DRM_MEM_DRIVER);
+	if(!dev->devname) {
+		DRM(free)(dev->devname, sizeof(*dev->devname), DRM_MEM_DRIVER);
+		DRM_OS_RETURN(ENOMEM);
+	}
+	sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
+
+#ifdef __linux__
+	do {
+		struct pci_dev *pci_dev;
+                int b, d, f;
+                char *p;
+ 
+                for(p = dev->unique; p && *p && *p != ':'; p++);
+                if (!p || !*p) break;
+                b = (int)simple_strtoul(p+1, &p, 10);
+                if (*p != ':') break;
+                d = (int)simple_strtoul(p+1, &p, 10);
+                if (*p != ':') break;
+                f = (int)simple_strtoul(p+1, &p, 10);
+                if (*p) break;
+ 
+                pci_dev = pci_find_slot(b, PCI_DEVFN(d,f));
+                if (pci_dev) {
+			dev->pdev = pci_dev;
+#ifdef __alpha__
+			dev->hose = pci_dev->sysdata;
+#endif
+		}
+        } while(0);
+#endif /* __linux__ */
+
+	return 0;
+}
+
+
+int DRM(getmap)( DRM_OS_IOCTL )
+{
+	DRM_OS_DEVICE;
+	drm_map_t    map;
+#ifdef __linux__
+	drm_map_list_t *r_list = NULL;
+	struct list_head *list;
+#endif /* __linux__ */
+#ifdef __FreeBSD__
+	drm_map_t    *mapinlist;
+	drm_map_list_entry_t *list;
+#endif /* __FreeBSD__ */
+	int          idx;
+	int	     i = 0;
+
+	DRM_OS_KRNFROMUSR( map, (drm_map_t *)data, sizeof(map) );
+
+	idx = map.offset;
+
+	DRM_OS_LOCK;
+	if (idx < 0 || idx >= dev->map_count) {
+		DRM_OS_UNLOCK;
+		DRM_OS_RETURN(EINVAL);
+	}
+
+#ifdef __linux__
+	list_for_each(list, &dev->maplist->head) {
+		if(i == idx) {
+			r_list = (drm_map_list_t *)list;
+			break;
+		}
+		i++;
+	}
+	if(!r_list || !r_list->map) {
+		DRM_OS_UNLOCK;
+		DRM_OS_RETURN(EINVAL);
+	}
+
+	map.offset = r_list->map->offset;
+	map.size   = r_list->map->size;
+	map.type   = r_list->map->type;
+	map.flags  = r_list->map->flags;
+	map.handle = r_list->map->handle;
+	map.mtrr   = r_list->map->mtrr;
+#endif /* __linux__ */
+#ifdef __FreeBSD__
+	TAILQ_FOREACH(list, dev->maplist, link) {
+		mapinlist = list->map;
+		if (i==idx) {
+			map.offset = mapinlist->offset;
+			map.size   = mapinlist->size;
+			map.type   = mapinlist->type;
+			map.flags  = mapinlist->flags;
+			map.handle = mapinlist->handle;
+			map.mtrr   = mapinlist->mtrr;
+			break;
+		}
+		i++;
+	}
+#endif /* __FreeBSD__ */
+
+	DRM_OS_UNLOCK;
+
+#ifdef __FreeBSD__
+ 	if (!list)
+		return EINVAL;
+#endif /* __FreeBSD__ */
+
+	DRM_OS_KRNTOUSR( (drm_map_t *)data, map, sizeof(map) );
+
+	return 0;
+}
+
+int DRM(getclient)( DRM_OS_IOCTL )
+{
+	DRM_OS_DEVICE;
+	drm_client_t client;
+	drm_file_t   *pt;
+	int          idx;
+	int          i = 0;
+
+	DRM_OS_KRNFROMUSR( client, (drm_client_t *)data, sizeof(client) );
+
+	idx = client.idx;
+	DRM_OS_LOCK;
+#ifdef __linux__
+	for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next)
+		;
+
+	if (!pt) {
+		DRM_OS_UNLOCK;
+		DRM_OS_RETURN(EINVAL);
+	}
+	client.auth  = pt->authenticated;
+	client.pid   = pt->pid;
+	client.uid   = pt->uid;
+	client.magic = pt->magic;
+	client.iocs  = pt->ioctl_count;
+#endif /* __linux__ */
+#ifdef __FreeBSD__
+	TAILQ_FOREACH(pt, &dev->files, link) {
+		if (i==idx)
+		{
+			client.auth  = pt->authenticated;
+			client.pid   = pt->pid;
+			client.uid   = pt->uid;
+			client.magic = pt->magic;
+			client.iocs  = pt->ioctl_count;
+			DRM_OS_UNLOCK;
+
+			*(drm_client_t *)data = client;
+			return 0;
+		}
+		i++;
+	}
+#endif /* __FreeBSD__ */
+	DRM_OS_UNLOCK;
+
+	DRM_OS_KRNTOUSR( (drm_client_t *)data, client, sizeof(client) );
+
+	return 0;
+}
+
+int DRM(getstats)( DRM_OS_IOCTL )
+{
+	DRM_OS_DEVICE;
+	drm_stats_t  stats;
+	int          i;
+
+	memset(&stats, 0, sizeof(stats));
+	
+	DRM_OS_LOCK;
+
+	for (i = 0; i < dev->counters; i++) {
+		if (dev->types[i] == _DRM_STAT_LOCK)
+			stats.data[i].value
+				= (dev->lock.hw_lock
+				   ? dev->lock.hw_lock->lock : 0);
+		else 
+			stats.data[i].value = atomic_read(&dev->counts[i]);
+		stats.data[i].type  = dev->types[i];
+	}
+	
+	stats.count = dev->counters;
+
+	DRM_OS_UNLOCK;
+
+	DRM_OS_KRNTOUSR( (drm_stats_t *)data, stats, sizeof(stats) );
+
+	return 0;
+}