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freebsd/sys/dev/drm/drm_ioctl.h
Eric Anholt 81dc97109d Update from DRI CVS. Includes locking fixes (including PR 59202), changes for
Radeon IGP support (still lacking PCI IDs), and DRM interface 1.2 updates which
include finally tying the DRM instances to specific devices rather than relying
on the X Server.
2003-11-12 20:56:30 +00:00

281 lines
6.6 KiB
C

/* 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>
*
* $FreeBSD$
*/
#include "dev/drm/drmP.h"
/*
* Beginning in revision 1.1 of the DRM interface, getunique will return
* a unique in the form pci:oooo:bb:dd.f (o=domain, b=bus, d=device, f=function)
* before setunique has been called. The format for the bus-specific part of
* the unique is not defined for any other bus.
*/
int DRM(getunique)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_unique_t u;
DRM_COPY_FROM_USER_IOCTL( u, (drm_unique_t *)data, sizeof(u) );
if (u.unique_len >= dev->unique_len) {
if (DRM_COPY_TO_USER(u.unique, dev->unique, dev->unique_len))
return DRM_ERR(EFAULT);
}
u.unique_len = dev->unique_len;
DRM_COPY_TO_USER_IOCTL( (drm_unique_t *)data, u, sizeof(u) );
return 0;
}
/* Deprecated in DRM version 1.1, and will return EBUSY when setversion has
* requested version 1.1 or greater.
*/
int DRM(setunique)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_unique_t u;
int domain, bus, slot, func, ret;
if (dev->unique_len || dev->unique)
return DRM_ERR(EBUSY);
DRM_COPY_FROM_USER_IOCTL( u, (drm_unique_t *)data, sizeof(u) );
if (!u.unique_len || u.unique_len > 1024)
return DRM_ERR(EINVAL);
dev->unique_len = u.unique_len;
dev->unique = DRM(alloc)(u.unique_len + 1, DRM_MEM_DRIVER);
if (dev->unique == NULL)
return DRM_ERR(ENOMEM);
if (DRM_COPY_FROM_USER(dev->unique, u.unique, dev->unique_len))
return DRM_ERR(EFAULT);
dev->unique[dev->unique_len] = '\0';
/* Return error if the busid submitted doesn't match the device's actual
* busid.
*/
ret = sscanf(dev->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
if (ret != 3)
return DRM_ERR(EINVAL);
domain = bus >> 8;
bus &= 0xff;
if ((domain != dev->pci_domain) ||
(bus != dev->pci_bus) ||
(slot != dev->pci_slot) ||
(func != dev->pci_func))
return DRM_ERR(EINVAL);
return 0;
}
static int
DRM(set_busid)(drm_device_t *dev)
{
if (dev->unique != NULL)
return EBUSY;
dev->unique_len = 20;
dev->unique = DRM(alloc)(dev->unique_len + 1, DRM_MEM_DRIVER);
if (dev->unique == NULL)
return ENOMEM;
snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%1x",
dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func);
return 0;
}
int DRM(getmap)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_map_t map;
drm_local_map_t *mapinlist;
drm_map_list_entry_t *list;
int idx;
int i = 0;
DRM_COPY_FROM_USER_IOCTL( map, (drm_map_t *)data, sizeof(map) );
idx = map.offset;
DRM_LOCK();
if (idx < 0) {
DRM_UNLOCK();
return DRM_ERR(EINVAL);
}
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++;
}
DRM_UNLOCK();
if (!list)
return EINVAL;
DRM_COPY_TO_USER_IOCTL( (drm_map_t *)data, map, sizeof(map) );
return 0;
}
int DRM(getclient)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_client_t client;
drm_file_t *pt;
int idx;
int i = 0;
DRM_COPY_FROM_USER_IOCTL( client, (drm_client_t *)data, sizeof(client) );
idx = client.idx;
DRM_LOCK();
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_UNLOCK();
*(drm_client_t *)data = client;
return 0;
}
i++;
}
DRM_UNLOCK();
DRM_COPY_TO_USER_IOCTL( (drm_client_t *)data, client, sizeof(client) );
return 0;
}
int DRM(getstats)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_stats_t stats;
int i;
memset(&stats, 0, sizeof(stats));
DRM_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_UNLOCK();
DRM_COPY_TO_USER_IOCTL( (drm_stats_t *)data, stats, sizeof(stats) );
return 0;
}
#define DRM_IF_MAJOR 1
#define DRM_IF_MINOR 2
int DRM(setversion)(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_set_version_t sv;
drm_set_version_t retv;
int if_version;
DRM_COPY_FROM_USER_IOCTL(sv, (drm_set_version_t *)data, sizeof(sv));
retv.drm_di_major = DRM_IF_MAJOR;
retv.drm_di_minor = DRM_IF_MINOR;
retv.drm_dd_major = DRIVER_MAJOR;
retv.drm_dd_minor = DRIVER_MINOR;
DRM_COPY_TO_USER_IOCTL((drm_set_version_t *)data, retv, sizeof(sv));
if (sv.drm_di_major != -1) {
if (sv.drm_di_major != DRM_IF_MAJOR ||
sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR)
return EINVAL;
if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_dd_minor);
dev->if_version = DRM_MAX(if_version, dev->if_version);
if (sv.drm_di_minor >= 1) {
/*
* Version 1.1 includes tying of DRM to specific device
*/
DRM(set_busid)(dev);
}
}
if (sv.drm_dd_major != -1) {
if (sv.drm_dd_major != DRIVER_MAJOR ||
sv.drm_dd_minor < 0 || sv.drm_dd_minor > DRIVER_MINOR)
return EINVAL;
#ifdef DRIVER_SETVERSION
DRIVER_SETVERSION(dev, &sv);
#endif
}
return 0;
}
int DRM(noop)(DRM_IOCTL_ARGS)
{
DRM_DEBUG("\n");
return 0;
}