diff options
Diffstat (limited to 'drivers/char/agp/compat_ioctl.c')
-rw-r--r-- | drivers/char/agp/compat_ioctl.c | 291 |
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; -} - |