summaryrefslogtreecommitdiff
path: root/drivers/char/agp/compat_ioctl.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/agp/compat_ioctl.c')
-rw-r--r--drivers/char/agp/compat_ioctl.c291
1 files changed, 0 insertions, 291 deletions
diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
deleted file mode 100644
index 52ffe1706ce0..000000000000
--- a/drivers/char/agp/compat_ioctl.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * AGPGART driver frontend compatibility ioctls
- * Copyright (C) 2004 Silicon Graphics, Inc.
- * Copyright (C) 2002-2003 Dave Jones
- * Copyright (C) 1999 Jeff Hartmann
- * Copyright (C) 1999 Precision Insight, Inc.
- * Copyright (C) 1999 Xi Graphics, Inc.
- *
- * 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 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
- * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS 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.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/agpgart.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include "agp.h"
-#include "compat_ioctl.h"
-
-static int compat_agpioc_info_wrap(struct agp_file_private *priv, void __user *arg)
-{
- struct agp_info32 userinfo;
- struct agp_kern_info kerninfo;
-
- agp_copy_info(agp_bridge, &kerninfo);
-
- userinfo.version.major = kerninfo.version.major;
- userinfo.version.minor = kerninfo.version.minor;
- userinfo.bridge_id = kerninfo.device->vendor |
- (kerninfo.device->device << 16);
- userinfo.agp_mode = kerninfo.mode;
- userinfo.aper_base = (compat_long_t)kerninfo.aper_base;
- userinfo.aper_size = kerninfo.aper_size;
- userinfo.pg_total = userinfo.pg_system = kerninfo.max_memory;
- userinfo.pg_used = kerninfo.current_memory;
-
- if (copy_to_user(arg, &userinfo, sizeof(userinfo)))
- return -EFAULT;
-
- return 0;
-}
-
-static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
-{
- struct agp_region32 ureserve;
- struct agp_region kreserve;
- struct agp_client *client;
- struct agp_file_private *client_priv;
-
- DBG("");
- if (copy_from_user(&ureserve, arg, sizeof(ureserve)))
- return -EFAULT;
-
- if ((unsigned) ureserve.seg_count >= ~0U/sizeof(struct agp_segment32))
- return -EFAULT;
-
- kreserve.pid = ureserve.pid;
- kreserve.seg_count = ureserve.seg_count;
-
- client = agp_find_client_by_pid(kreserve.pid);
-
- if (kreserve.seg_count == 0) {
- /* remove a client */
- client_priv = agp_find_private(kreserve.pid);
-
- if (client_priv != NULL) {
- set_bit(AGP_FF_IS_CLIENT, &client_priv->access_flags);
- set_bit(AGP_FF_IS_VALID, &client_priv->access_flags);
- }
- if (client == NULL) {
- /* client is already removed */
- return 0;
- }
- return agp_remove_client(kreserve.pid);
- } else {
- struct agp_segment32 *usegment;
- struct agp_segment *ksegment;
- int seg;
-
- if (ureserve.seg_count >= 16384)
- return -EINVAL;
-
- usegment = kmalloc_array(ureserve.seg_count,
- sizeof(*usegment),
- GFP_KERNEL);
- if (!usegment)
- return -ENOMEM;
-
- ksegment = kmalloc_array(kreserve.seg_count,
- sizeof(*ksegment),
- GFP_KERNEL);
- if (!ksegment) {
- kfree(usegment);
- return -ENOMEM;
- }
-
- if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
- sizeof(*usegment) * ureserve.seg_count)) {
- kfree(usegment);
- kfree(ksegment);
- return -EFAULT;
- }
-
- for (seg = 0; seg < ureserve.seg_count; seg++) {
- ksegment[seg].pg_start = usegment[seg].pg_start;
- ksegment[seg].pg_count = usegment[seg].pg_count;
- ksegment[seg].prot = usegment[seg].prot;
- }
-
- kfree(usegment);
- kreserve.seg_list = ksegment;
-
- if (client == NULL) {
- /* Create the client and add the segment */
- client = agp_create_client(kreserve.pid);
-
- if (client == NULL) {
- kfree(ksegment);
- return -ENOMEM;
- }
- client_priv = agp_find_private(kreserve.pid);
-
- if (client_priv != NULL) {
- set_bit(AGP_FF_IS_CLIENT, &client_priv->access_flags);
- set_bit(AGP_FF_IS_VALID, &client_priv->access_flags);
- }
- }
- return agp_create_segment(client, &kreserve);
- }
- /* Will never really happen */
- return -EINVAL;
-}
-
-static int compat_agpioc_allocate_wrap(struct agp_file_private *priv, void __user *arg)
-{
- struct agp_memory *memory;
- struct agp_allocate32 alloc;
-
- DBG("");
- if (copy_from_user(&alloc, arg, sizeof(alloc)))
- return -EFAULT;
-
- memory = agp_allocate_memory_wrap(alloc.pg_count, alloc.type);
-
- if (memory == NULL)
- return -ENOMEM;
-
- alloc.key = memory->key;
- alloc.physical = memory->physical;
-
- if (copy_to_user(arg, &alloc, sizeof(alloc))) {
- agp_free_memory_wrap(memory);
- return -EFAULT;
- }
- return 0;
-}
-
-static int compat_agpioc_bind_wrap(struct agp_file_private *priv, void __user *arg)
-{
- struct agp_bind32 bind_info;
- struct agp_memory *memory;
-
- DBG("");
- if (copy_from_user(&bind_info, arg, sizeof(bind_info)))
- return -EFAULT;
-
- memory = agp_find_mem_by_key(bind_info.key);
-
- if (memory == NULL)
- return -EINVAL;
-
- return agp_bind_memory(memory, bind_info.pg_start);
-}
-
-static int compat_agpioc_unbind_wrap(struct agp_file_private *priv, void __user *arg)
-{
- struct agp_memory *memory;
- struct agp_unbind32 unbind;
-
- DBG("");
- if (copy_from_user(&unbind, arg, sizeof(unbind)))
- return -EFAULT;
-
- memory = agp_find_mem_by_key(unbind.key);
-
- if (memory == NULL)
- return -EINVAL;
-
- return agp_unbind_memory(memory);
-}
-
-long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct agp_file_private *curr_priv = file->private_data;
- int ret_val = -ENOTTY;
-
- mutex_lock(&(agp_fe.agp_mutex));
-
- if ((agp_fe.current_controller == NULL) &&
- (cmd != AGPIOC_ACQUIRE32)) {
- ret_val = -EINVAL;
- goto ioctl_out;
- }
- if ((agp_fe.backend_acquired != true) &&
- (cmd != AGPIOC_ACQUIRE32)) {
- ret_val = -EBUSY;
- goto ioctl_out;
- }
- if (cmd != AGPIOC_ACQUIRE32) {
- if (!(test_bit(AGP_FF_IS_CONTROLLER, &curr_priv->access_flags))) {
- ret_val = -EPERM;
- goto ioctl_out;
- }
- /* Use the original pid of the controller,
- * in case it's threaded */
-
- if (agp_fe.current_controller->pid != curr_priv->my_pid) {
- ret_val = -EBUSY;
- goto ioctl_out;
- }
- }
-
- switch (cmd) {
- case AGPIOC_INFO32:
- ret_val = compat_agpioc_info_wrap(curr_priv, (void __user *) arg);
- break;
-
- case AGPIOC_ACQUIRE32:
- ret_val = agpioc_acquire_wrap(curr_priv);
- break;
-
- case AGPIOC_RELEASE32:
- ret_val = agpioc_release_wrap(curr_priv);
- break;
-
- case AGPIOC_SETUP32:
- ret_val = agpioc_setup_wrap(curr_priv, (void __user *) arg);
- break;
-
- case AGPIOC_RESERVE32:
- ret_val = compat_agpioc_reserve_wrap(curr_priv, (void __user *) arg);
- break;
-
- case AGPIOC_PROTECT32:
- ret_val = agpioc_protect_wrap(curr_priv);
- break;
-
- case AGPIOC_ALLOCATE32:
- ret_val = compat_agpioc_allocate_wrap(curr_priv, (void __user *) arg);
- break;
-
- case AGPIOC_DEALLOCATE32:
- ret_val = agpioc_deallocate_wrap(curr_priv, (int) arg);
- break;
-
- case AGPIOC_BIND32:
- ret_val = compat_agpioc_bind_wrap(curr_priv, (void __user *) arg);
- break;
-
- case AGPIOC_UNBIND32:
- ret_val = compat_agpioc_unbind_wrap(curr_priv, (void __user *) arg);
- break;
-
- case AGPIOC_CHIPSET_FLUSH32:
- break;
- }
-
-ioctl_out:
- DBG("ioctl returns %d\n", ret_val);
- mutex_unlock(&(agp_fe.agp_mutex));
- return ret_val;
-}
-