[AGPGART] compat ioctl
The following video card requires the agpgart driver ioctl interface in order to detect video memory. 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03) Tested on a Thinkpad Z61t, Xorg.0.log from a 32bit debian Xorg is at; http://montezuma.homeunix.net/Xorg.0.log Signed-off-by: Zwane Mwaikambo <zwane@infradead.org> Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
parent
ce35a81a71
commit
0316fe8319
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@ -1,6 +1,7 @@
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agpgart-y := backend.o frontend.o generic.o isoch.o
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obj-$(CONFIG_AGP) += agpgart.o
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obj-$(CONFIG_COMPAT) += compat_ioctl.o
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obj-$(CONFIG_AGP_ALI) += ali-agp.o
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obj-$(CONFIG_AGP_ATI) += ati-agp.o
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obj-$(CONFIG_AGP_AMD) += amd-k7-agp.o
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@ -288,6 +288,8 @@ extern struct aper_size_info_16 agp3_generic_sizes[];
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extern int agp_off;
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extern int agp_try_unsupported_boot;
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long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
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/* Chipset independant registers (from AGP Spec) */
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#define AGP_APBASE 0x10
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282
drivers/char/agp/compat_ioctl.c
Normal file
282
drivers/char/agp/compat_ioctl.c
Normal file
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@ -0,0 +1,282 @@
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/*
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* AGPGART driver frontend compatibility ioctls
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* Copyright (C) 2004 Silicon Graphics, Inc.
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* Copyright (C) 2002-2003 Dave Jones
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* Copyright (C) 1999 Jeff Hartmann
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* Copyright (C) 1999 Precision Insight, Inc.
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* Copyright (C) 1999 Xi Graphics, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/agpgart.h>
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#include <asm/uaccess.h>
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#include "agp.h"
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#include "compat_ioctl.h"
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static int compat_agpioc_info_wrap(struct agp_file_private *priv, void __user *arg)
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{
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struct agp_info32 userinfo;
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struct agp_kern_info kerninfo;
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agp_copy_info(agp_bridge, &kerninfo);
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userinfo.version.major = kerninfo.version.major;
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userinfo.version.minor = kerninfo.version.minor;
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userinfo.bridge_id = kerninfo.device->vendor |
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(kerninfo.device->device << 16);
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userinfo.agp_mode = kerninfo.mode;
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userinfo.aper_base = (compat_long_t)kerninfo.aper_base;
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userinfo.aper_size = kerninfo.aper_size;
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userinfo.pg_total = userinfo.pg_system = kerninfo.max_memory;
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userinfo.pg_used = kerninfo.current_memory;
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if (copy_to_user(arg, &userinfo, sizeof(userinfo)))
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return -EFAULT;
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return 0;
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}
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static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
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{
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struct agp_region32 ureserve;
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struct agp_region kreserve;
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struct agp_client *client;
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struct agp_file_private *client_priv;
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DBG("");
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if (copy_from_user(&ureserve, arg, sizeof(ureserve)))
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return -EFAULT;
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if ((unsigned) ureserve.seg_count >= ~0U/sizeof(struct agp_segment32))
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return -EFAULT;
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kreserve.pid = ureserve.pid;
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kreserve.seg_count = ureserve.seg_count;
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client = agp_find_client_by_pid(kreserve.pid);
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if (kreserve.seg_count == 0) {
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/* remove a client */
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client_priv = agp_find_private(kreserve.pid);
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if (client_priv != NULL) {
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set_bit(AGP_FF_IS_CLIENT, &client_priv->access_flags);
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set_bit(AGP_FF_IS_VALID, &client_priv->access_flags);
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}
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if (client == NULL) {
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/* client is already removed */
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return 0;
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}
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return agp_remove_client(kreserve.pid);
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} else {
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struct agp_segment32 *usegment;
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struct agp_segment *ksegment;
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int seg;
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if (ureserve.seg_count >= 16384)
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return -EINVAL;
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usegment = kmalloc(sizeof(*usegment) * ureserve.seg_count, GFP_KERNEL);
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if (!usegment)
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return -ENOMEM;
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ksegment = kmalloc(sizeof(*ksegment) * kreserve.seg_count, GFP_KERNEL);
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if (!ksegment) {
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kfree(usegment);
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return -ENOMEM;
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}
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if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
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sizeof(*usegment) * ureserve.seg_count)) {
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kfree(usegment);
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kfree(ksegment);
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return -EFAULT;
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}
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for (seg = 0; seg < ureserve.seg_count; seg++) {
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ksegment[seg].pg_start = usegment[seg].pg_start;
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ksegment[seg].pg_count = usegment[seg].pg_count;
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ksegment[seg].prot = usegment[seg].prot;
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}
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kfree(usegment);
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kreserve.seg_list = ksegment;
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if (client == NULL) {
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/* Create the client and add the segment */
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client = agp_create_client(kreserve.pid);
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if (client == NULL) {
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kfree(ksegment);
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return -ENOMEM;
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}
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client_priv = agp_find_private(kreserve.pid);
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if (client_priv != NULL) {
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set_bit(AGP_FF_IS_CLIENT, &client_priv->access_flags);
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set_bit(AGP_FF_IS_VALID, &client_priv->access_flags);
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}
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}
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return agp_create_segment(client, &kreserve);
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}
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/* Will never really happen */
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return -EINVAL;
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}
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static int compat_agpioc_allocate_wrap(struct agp_file_private *priv, void __user *arg)
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{
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struct agp_memory *memory;
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struct agp_allocate32 alloc;
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DBG("");
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if (copy_from_user(&alloc, arg, sizeof(alloc)))
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return -EFAULT;
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memory = agp_allocate_memory_wrap(alloc.pg_count, alloc.type);
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if (memory == NULL)
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return -ENOMEM;
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alloc.key = memory->key;
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alloc.physical = memory->physical;
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if (copy_to_user(arg, &alloc, sizeof(alloc))) {
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agp_free_memory_wrap(memory);
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return -EFAULT;
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}
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return 0;
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}
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static int compat_agpioc_bind_wrap(struct agp_file_private *priv, void __user *arg)
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{
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struct agp_bind32 bind_info;
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struct agp_memory *memory;
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DBG("");
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if (copy_from_user(&bind_info, arg, sizeof(bind_info)))
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return -EFAULT;
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memory = agp_find_mem_by_key(bind_info.key);
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if (memory == NULL)
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return -EINVAL;
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return agp_bind_memory(memory, bind_info.pg_start);
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}
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static int compat_agpioc_unbind_wrap(struct agp_file_private *priv, void __user *arg)
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{
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struct agp_memory *memory;
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struct agp_unbind32 unbind;
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DBG("");
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if (copy_from_user(&unbind, arg, sizeof(unbind)))
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return -EFAULT;
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memory = agp_find_mem_by_key(unbind.key);
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if (memory == NULL)
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return -EINVAL;
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return agp_unbind_memory(memory);
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}
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long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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{
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struct agp_file_private *curr_priv = file->private_data;
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int ret_val = -ENOTTY;
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mutex_lock(&(agp_fe.agp_mutex));
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if ((agp_fe.current_controller == NULL) &&
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(cmd != AGPIOC_ACQUIRE32)) {
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ret_val = -EINVAL;
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goto ioctl_out;
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}
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if ((agp_fe.backend_acquired != TRUE) &&
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(cmd != AGPIOC_ACQUIRE32)) {
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ret_val = -EBUSY;
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goto ioctl_out;
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}
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if (cmd != AGPIOC_ACQUIRE32) {
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if (!(test_bit(AGP_FF_IS_CONTROLLER, &curr_priv->access_flags))) {
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ret_val = -EPERM;
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goto ioctl_out;
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}
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/* Use the original pid of the controller,
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* in case it's threaded */
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if (agp_fe.current_controller->pid != curr_priv->my_pid) {
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ret_val = -EBUSY;
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goto ioctl_out;
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}
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}
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switch (cmd) {
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case AGPIOC_INFO32:
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ret_val = compat_agpioc_info_wrap(curr_priv, (void __user *) arg);
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break;
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case AGPIOC_ACQUIRE32:
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ret_val = agpioc_acquire_wrap(curr_priv);
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break;
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case AGPIOC_RELEASE32:
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ret_val = agpioc_release_wrap(curr_priv);
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break;
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case AGPIOC_SETUP32:
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ret_val = agpioc_setup_wrap(curr_priv, (void __user *) arg);
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break;
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case AGPIOC_RESERVE32:
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ret_val = compat_agpioc_reserve_wrap(curr_priv, (void __user *) arg);
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break;
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case AGPIOC_PROTECT32:
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ret_val = agpioc_protect_wrap(curr_priv);
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break;
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case AGPIOC_ALLOCATE32:
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ret_val = compat_agpioc_allocate_wrap(curr_priv, (void __user *) arg);
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break;
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case AGPIOC_DEALLOCATE32:
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ret_val = agpioc_deallocate_wrap(curr_priv, (int) arg);
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break;
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case AGPIOC_BIND32:
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ret_val = compat_agpioc_bind_wrap(curr_priv, (void __user *) arg);
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break;
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case AGPIOC_UNBIND32:
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ret_val = compat_agpioc_unbind_wrap(curr_priv, (void __user *) arg);
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break;
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}
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ioctl_out:
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DBG("ioctl returns %d\n", ret_val);
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mutex_unlock(&(agp_fe.agp_mutex));
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return ret_val;
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}
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105
drivers/char/agp/compat_ioctl.h
Normal file
105
drivers/char/agp/compat_ioctl.h
Normal file
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@ -0,0 +1,105 @@
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/*
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* Copyright (C) 1999 Jeff Hartmann
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* Copyright (C) 1999 Precision Insight, Inc.
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* Copyright (C) 1999 Xi Graphics, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
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* and/or sell copies of the Software, and to permit persons to whom the
|
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* Software is furnished to do so, subject to the following conditions:
|
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*
|
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* The above copyright notice and this permission notice shall be included
|
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
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* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
|
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef _AGP_COMPAT_IOCTL_H
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#define _AGP_COMPAT_IOCTL_H
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#include <linux/compat.h>
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#include <linux/agpgart.h>
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#define AGPIOC_INFO32 _IOR (AGPIOC_BASE, 0, compat_uptr_t)
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#define AGPIOC_ACQUIRE32 _IO (AGPIOC_BASE, 1)
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#define AGPIOC_RELEASE32 _IO (AGPIOC_BASE, 2)
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#define AGPIOC_SETUP32 _IOW (AGPIOC_BASE, 3, compat_uptr_t)
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#define AGPIOC_RESERVE32 _IOW (AGPIOC_BASE, 4, compat_uptr_t)
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#define AGPIOC_PROTECT32 _IOW (AGPIOC_BASE, 5, compat_uptr_t)
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#define AGPIOC_ALLOCATE32 _IOWR(AGPIOC_BASE, 6, compat_uptr_t)
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#define AGPIOC_DEALLOCATE32 _IOW (AGPIOC_BASE, 7, compat_int_t)
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#define AGPIOC_BIND32 _IOW (AGPIOC_BASE, 8, compat_uptr_t)
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#define AGPIOC_UNBIND32 _IOW (AGPIOC_BASE, 9, compat_uptr_t)
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struct agp_info32 {
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struct agp_version version; /* version of the driver */
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u32 bridge_id; /* bridge vendor/device */
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u32 agp_mode; /* mode info of bridge */
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compat_long_t aper_base; /* base of aperture */
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compat_size_t aper_size; /* size of aperture */
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compat_size_t pg_total; /* max pages (swap + system) */
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compat_size_t pg_system; /* max pages (system) */
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compat_size_t pg_used; /* current pages used */
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};
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/*
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* The "prot" down below needs still a "sleep" flag somehow ...
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*/
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struct agp_segment32 {
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compat_off_t pg_start; /* starting page to populate */
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compat_size_t pg_count; /* number of pages */
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compat_int_t prot; /* prot flags for mmap */
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};
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struct agp_region32 {
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compat_pid_t pid; /* pid of process */
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compat_size_t seg_count; /* number of segments */
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struct agp_segment32 *seg_list;
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};
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struct agp_allocate32 {
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compat_int_t key; /* tag of allocation */
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compat_size_t pg_count; /* number of pages */
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u32 type; /* 0 == normal, other devspec */
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u32 physical; /* device specific (some devices
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* need a phys address of the
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* actual page behind the gatt
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* table) */
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};
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struct agp_bind32 {
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compat_int_t key; /* tag of allocation */
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compat_off_t pg_start; /* starting page to populate */
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};
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struct agp_unbind32 {
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compat_int_t key; /* tag of allocation */
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u32 priority; /* priority for paging out */
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};
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extern struct agp_front_data agp_fe;
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int agpioc_acquire_wrap(struct agp_file_private *priv);
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int agpioc_release_wrap(struct agp_file_private *priv);
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int agpioc_protect_wrap(struct agp_file_private *priv);
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int agpioc_setup_wrap(struct agp_file_private *priv, void __user *arg);
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int agpioc_deallocate_wrap(struct agp_file_private *priv, int arg);
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struct agp_file_private *agp_find_private(pid_t pid);
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struct agp_client *agp_create_client(pid_t id);
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int agp_remove_client(pid_t id);
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int agp_create_segment(struct agp_client *client, struct agp_region *region);
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void agp_free_memory_wrap(struct agp_memory *memory);
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struct agp_memory *agp_allocate_memory_wrap(size_t pg_count, u32 type);
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struct agp_memory *agp_find_mem_by_key(int key);
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struct agp_client *agp_find_client_by_pid(pid_t id);
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#endif /* _AGP_COMPAT_H */
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@ -41,9 +41,9 @@
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#include <asm/pgtable.h>
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#include "agp.h"
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static struct agp_front_data agp_fe;
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struct agp_front_data agp_fe;
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static struct agp_memory *agp_find_mem_by_key(int key)
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struct agp_memory *agp_find_mem_by_key(int key)
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{
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struct agp_memory *curr;
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|
@ -159,7 +159,7 @@ static pgprot_t agp_convert_mmap_flags(int prot)
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return vm_get_page_prot(prot_bits);
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}
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static int agp_create_segment(struct agp_client *client, struct agp_region *region)
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int agp_create_segment(struct agp_client *client, struct agp_region *region)
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{
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struct agp_segment_priv **ret_seg;
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struct agp_segment_priv *seg;
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|
@ -211,7 +211,7 @@ static void agp_insert_into_pool(struct agp_memory * temp)
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/* File private list routines */
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static struct agp_file_private *agp_find_private(pid_t pid)
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struct agp_file_private *agp_find_private(pid_t pid)
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{
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struct agp_file_private *curr;
|
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|
||||
|
@ -266,13 +266,13 @@ static void agp_remove_file_private(struct agp_file_private * priv)
|
|||
* Wrappers for agp_free_memory & agp_allocate_memory
|
||||
* These make sure that internal lists are kept updated.
|
||||
*/
|
||||
static void agp_free_memory_wrap(struct agp_memory *memory)
|
||||
void agp_free_memory_wrap(struct agp_memory *memory)
|
||||
{
|
||||
agp_remove_from_pool(memory);
|
||||
agp_free_memory(memory);
|
||||
}
|
||||
|
||||
static struct agp_memory *agp_allocate_memory_wrap(size_t pg_count, u32 type)
|
||||
struct agp_memory *agp_allocate_memory_wrap(size_t pg_count, u32 type)
|
||||
{
|
||||
struct agp_memory *memory;
|
||||
|
||||
|
@ -484,7 +484,7 @@ static struct agp_controller *agp_find_controller_for_client(pid_t id)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
static struct agp_client *agp_find_client_by_pid(pid_t id)
|
||||
struct agp_client *agp_find_client_by_pid(pid_t id)
|
||||
{
|
||||
struct agp_client *temp;
|
||||
|
||||
|
@ -509,7 +509,7 @@ static void agp_insert_client(struct agp_client *client)
|
|||
agp_fe.current_controller->num_clients++;
|
||||
}
|
||||
|
||||
static struct agp_client *agp_create_client(pid_t id)
|
||||
struct agp_client *agp_create_client(pid_t id)
|
||||
{
|
||||
struct agp_client *new_client;
|
||||
|
||||
|
@ -522,7 +522,7 @@ static struct agp_client *agp_create_client(pid_t id)
|
|||
return new_client;
|
||||
}
|
||||
|
||||
static int agp_remove_client(pid_t id)
|
||||
int agp_remove_client(pid_t id)
|
||||
{
|
||||
struct agp_client *client;
|
||||
struct agp_client *prev_client;
|
||||
|
@ -746,7 +746,7 @@ static int agpioc_info_wrap(struct agp_file_private *priv, void __user *arg)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int agpioc_acquire_wrap(struct agp_file_private *priv)
|
||||
int agpioc_acquire_wrap(struct agp_file_private *priv)
|
||||
{
|
||||
struct agp_controller *controller;
|
||||
|
||||
|
@ -789,14 +789,14 @@ static int agpioc_acquire_wrap(struct agp_file_private *priv)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int agpioc_release_wrap(struct agp_file_private *priv)
|
||||
int agpioc_release_wrap(struct agp_file_private *priv)
|
||||
{
|
||||
DBG("");
|
||||
agp_controller_release_current(agp_fe.current_controller, priv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int agpioc_setup_wrap(struct agp_file_private *priv, void __user *arg)
|
||||
int agpioc_setup_wrap(struct agp_file_private *priv, void __user *arg)
|
||||
{
|
||||
struct agp_setup mode;
|
||||
|
||||
|
@ -876,7 +876,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int agpioc_protect_wrap(struct agp_file_private *priv)
|
||||
int agpioc_protect_wrap(struct agp_file_private *priv)
|
||||
{
|
||||
DBG("");
|
||||
/* This function is not currently implemented */
|
||||
|
@ -907,7 +907,7 @@ static int agpioc_allocate_wrap(struct agp_file_private *priv, void __user *arg)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int agpioc_deallocate_wrap(struct agp_file_private *priv, int arg)
|
||||
int agpioc_deallocate_wrap(struct agp_file_private *priv, int arg)
|
||||
{
|
||||
struct agp_memory *memory;
|
||||
|
||||
|
@ -1043,6 +1043,9 @@ static const struct file_operations agp_fops =
|
|||
.read = agp_read,
|
||||
.write = agp_write,
|
||||
.ioctl = agp_ioctl,
|
||||
#ifdef CONFIG_COMPAT
|
||||
.compat_ioctl = compat_agp_ioctl,
|
||||
#endif
|
||||
.mmap = agp_mmap,
|
||||
.open = agp_open,
|
||||
.release = agp_release,
|
||||
|
|
Loading…
Reference in a new issue