#include <asm/pgtable.h>
#include "agp.h"
-static struct agp_front_data agp_fe;
+struct agp_front_data agp_fe;
-static struct agp_memory *agp_find_mem_by_key(int key)
+struct agp_memory *agp_find_mem_by_key(int key)
{
struct agp_memory *curr;
client->segments = seg;
}
-/* Originally taken from linux/mm/mmap.c from the array
- * protection_map.
- * The original really should be exported to modules, or
- * some routine which does the conversion for you
- */
-
-static const pgprot_t my_protect_map[16] =
-{
- __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
- __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
-};
-
static pgprot_t agp_convert_mmap_flags(int prot)
{
-#define _trans(x,bit1,bit2) \
-((bit1==bit2)?(x&bit1):(x&bit1)?bit2:0)
-
unsigned long prot_bits;
- pgprot_t temp;
-
- prot_bits = _trans(prot, PROT_READ, VM_READ) |
- _trans(prot, PROT_WRITE, VM_WRITE) |
- _trans(prot, PROT_EXEC, VM_EXEC);
-
- prot_bits |= VM_SHARED;
- temp = my_protect_map[prot_bits & 0x0000000f];
-
- return temp;
+ prot_bits = calc_vm_prot_bits(prot) | VM_SHARED;
+ return vm_get_page_prot(prot_bits);
}
-static int agp_create_segment(struct agp_client *client, struct agp_region *region)
+int agp_create_segment(struct agp_client *client, struct agp_region *region)
{
struct agp_segment_priv **ret_seg;
struct agp_segment_priv *seg;
struct agp_segment *user_seg;
size_t i;
- seg = kmalloc((sizeof(struct agp_segment_priv) * region->seg_count), GFP_KERNEL);
+ seg = kzalloc((sizeof(struct agp_segment_priv) * region->seg_count), GFP_KERNEL);
if (seg == NULL) {
kfree(region->seg_list);
region->seg_list = NULL;
return -ENOMEM;
}
- memset(seg, 0, (sizeof(struct agp_segment_priv) * region->seg_count));
user_seg = region->seg_list;
for (i = 0; i < region->seg_count; i++) {
/* File private list routines */
-static struct agp_file_private *agp_find_private(pid_t pid)
+struct agp_file_private *agp_find_private(pid_t pid)
{
struct agp_file_private *curr;
* 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;
{
struct agp_controller *controller;
- controller = kmalloc(sizeof(struct agp_controller), GFP_KERNEL);
-
+ controller = kzalloc(sizeof(struct agp_controller), GFP_KERNEL);
if (controller == NULL)
return NULL;
- memset(controller, 0, sizeof(struct agp_controller));
controller->pid = id;
-
return controller;
}
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;
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;
- new_client = kmalloc(sizeof(struct agp_client), GFP_KERNEL);
-
+ new_client = kzalloc(sizeof(struct agp_client), GFP_KERNEL);
if (new_client == NULL)
return NULL;
- memset(new_client, 0, sizeof(struct agp_client));
new_client->pid = id;
agp_insert_client(new_client);
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;
struct agp_file_private *priv = file->private_data;
struct agp_kern_info kerninfo;
- down(&(agp_fe.agp_mutex));
+ mutex_lock(&(agp_fe.agp_mutex));
if (agp_fe.backend_acquired != TRUE)
goto out_eperm;
size, vma->vm_page_prot)) {
goto out_again;
}
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return 0;
}
size, vma->vm_page_prot)) {
goto out_again;
}
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return 0;
}
out_eperm:
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return -EPERM;
out_inval:
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return -EINVAL;
out_again:
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return -EAGAIN;
}
{
struct agp_file_private *priv = file->private_data;
- down(&(agp_fe.agp_mutex));
+ mutex_lock(&(agp_fe.agp_mutex));
DBG("priv=%p", priv);
agp_remove_file_private(priv);
kfree(priv);
file->private_data = NULL;
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return 0;
}
struct agp_client *client;
int rc = -ENXIO;
- down(&(agp_fe.agp_mutex));
+ mutex_lock(&(agp_fe.agp_mutex));
if (minor != AGPGART_MINOR)
goto err_out;
- priv = kmalloc(sizeof(struct agp_file_private), GFP_KERNEL);
+ priv = kzalloc(sizeof(struct agp_file_private), GFP_KERNEL);
if (priv == NULL)
goto err_out_nomem;
- memset(priv, 0, sizeof(struct agp_file_private));
set_bit(AGP_FF_ALLOW_CLIENT, &priv->access_flags);
priv->my_pid = current->pid;
file->private_data = (void *) priv;
agp_insert_file_private(priv);
DBG("private=%p, client=%p", priv, client);
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return 0;
err_out_nomem:
rc = -ENOMEM;
err_out:
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return rc;
}
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;
if (agp_fe.current_controller != NULL)
return -EBUSY;
- if(!agp_bridge)
+ if (!agp_bridge)
return -ENODEV;
if (atomic_read(&agp_bridge->agp_in_use))
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;
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 */
if (copy_from_user(&alloc, arg, sizeof(struct agp_allocate)))
return -EFAULT;
+ if (alloc.type >= AGP_USER_TYPES)
+ return -EINVAL;
+
memory = agp_allocate_memory_wrap(alloc.pg_count, alloc.type);
if (memory == NULL)
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;
int ret_val = -ENOTTY;
DBG("priv=%p, cmd=%x", curr_priv, cmd);
- down(&(agp_fe.agp_mutex));
+ mutex_lock(&(agp_fe.agp_mutex));
if ((agp_fe.current_controller == NULL) &&
(cmd != AGPIOC_ACQUIRE)) {
ioctl_out:
DBG("ioctl returns %d\n", ret_val);
- up(&(agp_fe.agp_mutex));
+ mutex_unlock(&(agp_fe.agp_mutex));
return ret_val;
}
-static struct file_operations agp_fops =
+static const struct file_operations agp_fops =
{
.owner = THIS_MODULE,
.llseek = no_llseek,
.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,
int agp_frontend_initialize(void)
{
memset(&agp_fe, 0, sizeof(struct agp_front_data));
- sema_init(&(agp_fe.agp_mutex), 1);
+ mutex_init(&(agp_fe.agp_mutex));
if (misc_register(&agp_miscdev)) {
printk(KERN_ERR PFX "unable to get minor: %d\n", AGPGART_MINOR);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff