| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/nge/@/dev/drm2/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/nge/@/dev/drm2/drm_ioctl.c |
/*-
* 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>
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/drm2/drm_ioctl.c 235783 2012-05-22 11:07:44Z kib $");
/** @file drm_ioctl.c
* Varios minor DRM ioctls not applicable to other files, such as versioning
* information and reporting DRM information to userland.
*/
#include <dev/drm2/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(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_unique *u = data;
if (u->unique_len >= dev->unique_len) {
if (DRM_COPY_TO_USER(u->unique, dev->unique, dev->unique_len))
return EFAULT;
}
u->unique_len = dev->unique_len;
return 0;
}
/* Deprecated in DRM version 1.1, and will return EBUSY when setversion has
* requested version 1.1 or greater.
*/
int drm_setunique(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_unique *u = data;
int domain, bus, slot, func, ret;
char *busid;
/* Check and copy in the submitted Bus ID */
if (!u->unique_len || u->unique_len > 1024)
return EINVAL;
busid = malloc(u->unique_len + 1, DRM_MEM_DRIVER, M_WAITOK);
if (busid == NULL)
return ENOMEM;
if (DRM_COPY_FROM_USER(busid, u->unique, u->unique_len)) {
free(busid, DRM_MEM_DRIVER);
return EFAULT;
}
busid[u->unique_len] = '\0';
/* Return error if the busid submitted doesn't match the device's actual
* busid.
*/
ret = sscanf(busid, "PCI:%d:%d:%d", &bus, &slot, &func);
if (ret != 3) {
free(busid, DRM_MEM_DRIVER);
return EINVAL;
}
domain = bus >> 8;
bus &= 0xff;
if ((domain != dev->pci_domain) ||
(bus != dev->pci_bus) ||
(slot != dev->pci_slot) ||
(func != dev->pci_func)) {
free(busid, DRM_MEM_DRIVER);
return EINVAL;
}
/* Actually set the device's busid now. */
DRM_LOCK(dev);
if (dev->unique_len || dev->unique) {
DRM_UNLOCK(dev);
return EBUSY;
}
dev->unique_len = u->unique_len;
dev->unique = busid;
DRM_UNLOCK(dev);
return 0;
}
static int
drm_set_busid(struct drm_device *dev)
{
DRM_LOCK(dev);
if (dev->unique != NULL) {
DRM_UNLOCK(dev);
return EBUSY;
}
dev->unique_len = 20;
dev->unique = malloc(dev->unique_len + 1, DRM_MEM_DRIVER, M_NOWAIT);
if (dev->unique == NULL) {
DRM_UNLOCK(dev);
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);
DRM_UNLOCK(dev);
return 0;
}
int drm_getmap(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
struct drm_map *map = data;
drm_local_map_t *mapinlist;
int idx;
int i = 0;
idx = map->offset;
DRM_LOCK(dev);
if (idx < 0) {
DRM_UNLOCK(dev);
return EINVAL;
}
TAILQ_FOREACH(mapinlist, &dev->maplist, link) {
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(dev);
if (mapinlist == NULL)
return EINVAL;
return 0;
}
int drm_getclient(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_client *client = data;
struct drm_file *pt;
int idx;
int i = 0;
idx = client->idx;
DRM_LOCK(dev);
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(dev);
return 0;
}
i++;
}
DRM_UNLOCK(dev);
return EINVAL;
}
int drm_getstats(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
struct drm_stats *stats = data;
int i;
memset(stats, 0, sizeof(struct drm_stats));
DRM_LOCK(dev);
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(dev);
return 0;
}
int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
struct drm_get_cap *req = data;
req->value = 0;
switch (req->capability) {
case DRM_CAP_DUMB_BUFFER:
if (dev->driver->dumb_create)
req->value = 1;
break;
case DRM_CAP_VBLANK_HIGH_CRTC:
req->value = 1;
break;
case DRM_CAP_DUMB_PREFERRED_DEPTH:
req->value = dev->mode_config.preferred_depth;
break;
case DRM_CAP_DUMB_PREFER_SHADOW:
req->value = dev->mode_config.prefer_shadow;
break;
default:
return EINVAL;
}
return 0;
}
#define DRM_IF_MAJOR 1
#define DRM_IF_MINOR 2
int drm_setversion(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_set_version *sv = data;
struct drm_set_version ver;
int if_version;
/* Save the incoming data, and set the response before continuing
* any further.
*/
ver = *sv;
sv->drm_di_major = DRM_IF_MAJOR;
sv->drm_di_minor = DRM_IF_MINOR;
sv->drm_dd_major = dev->driver->major;
sv->drm_dd_minor = dev->driver->minor;
DRM_DEBUG("ver.drm_di_major %d ver.drm_di_minor %d "
"ver.drm_dd_major %d ver.drm_dd_minor %d\n",
ver.drm_di_major, ver.drm_di_minor, ver.drm_dd_major,
ver.drm_dd_minor);
DRM_DEBUG("sv->drm_di_major %d sv->drm_di_minor %d "
"sv->drm_dd_major %d sv->drm_dd_minor %d\n",
sv->drm_di_major, sv->drm_di_minor, sv->drm_dd_major,
sv->drm_dd_minor);
if (ver.drm_di_major != -1) {
if (ver.drm_di_major != DRM_IF_MAJOR ||
ver.drm_di_minor < 0 || ver.drm_di_minor > DRM_IF_MINOR) {
return EINVAL;
}
if_version = DRM_IF_VERSION(ver.drm_di_major,
ver.drm_dd_minor);
dev->if_version = DRM_MAX(if_version, dev->if_version);
if (ver.drm_di_minor >= 1) {
/*
* Version 1.1 includes tying of DRM to specific device
*/
drm_set_busid(dev);
}
}
if (ver.drm_dd_major != -1) {
if (ver.drm_dd_major != dev->driver->major ||
ver.drm_dd_minor < 0 ||
ver.drm_dd_minor > dev->driver->minor)
{
return EINVAL;
}
}
return 0;
}
int drm_noop(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
DRM_DEBUG("\n");
return 0;
}