luck/tmp_suning_uos_patched
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drm: reorganise minor number handling using backported modesetting code.

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rips out the head crap and replaces it with an idr and drm_minor structure

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2008-04-21 16:47:32 +10:00 committed by Dave Airlie
parent 7b832b56bd
commit 2c14f28be2
10 changed files with 230 additions and 184 deletions
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42
drivers/char/drm/drmP.h
View File

@ -379,13 +379,12 @@ struct drm_buf_entry {
struct drm_file {
int authenticated;
int master;
int minor;
pid_t pid;
uid_t uid;
drm_magic_t magic;
unsigned long ioctl_count;
struct list_head lhead;
struct drm_head *head;
struct drm_minor *minor;
int remove_auth_on_close;
unsigned long lock_count;
struct file *filp;
@ -630,16 +629,19 @@ struct drm_driver {
struct pci_driver pci_driver;
};
#define DRM_MINOR_UNASSIGNED 0
#define DRM_MINOR_LEGACY 1
/**
* DRM head structure. This structure represent a video head on a card
* that may contain multiple heads. Embed one per head of these in the
* private drm_device structure.
* DRM minor structure. This structure represents a drm minor number.
*/
struct drm_head {
int minor; /**< Minor device number */
struct drm_minor {
int index; /**< Minor device number */
int type; /**< Control or render */
dev_t device; /**< Device number for mknod */
struct device kdev; /**< Linux device */
struct drm_device *dev;
struct proc_dir_entry *dev_root; /**< proc directory entry */
dev_t device; /**< Device number for mknod */
};
/**
@ -647,7 +649,6 @@ struct drm_head {
* may contain multiple heads.
*/
struct drm_device {
struct device dev; /**< Linux device */
char *unique; /**< Unique identifier: e.g., busid */
int unique_len; /**< Length of unique field */
char *devname; /**< For /proc/interrupts */
@ -763,7 +764,7 @@ struct drm_device {
struct drm_driver *driver;
drm_local_map_t *agp_buffer_map;
unsigned int agp_buffer_token;
struct drm_head primary; /**< primary screen head */
struct drm_minor *primary; /**< render type primary screen head */
/** \name Drawable information */
/*@{ */
@ -1030,23 +1031,20 @@ extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
struct drm_driver *driver);
extern int drm_put_dev(struct drm_device *dev);
extern int drm_put_head(struct drm_head *head);
extern int drm_put_minor(struct drm_minor **minor);
extern unsigned int drm_debug;
extern unsigned int drm_cards_limit;
extern struct drm_head **drm_heads;
extern struct class *drm_class;
extern struct proc_dir_entry *drm_proc_root;
extern struct idr drm_minors_idr;
extern drm_local_map_t *drm_getsarea(struct drm_device *dev);
/* Proc support (drm_proc.h) */
extern int drm_proc_init(struct drm_device *dev,
int minor,
struct proc_dir_entry *root,
struct proc_dir_entry **dev_root);
extern int drm_proc_cleanup(int minor,
struct proc_dir_entry *root,
struct proc_dir_entry *dev_root);
extern int drm_proc_init(struct drm_minor *minor, int minor_id,
struct proc_dir_entry *root);
extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
/* Scatter Gather Support (drm_scatter.h) */
extern void drm_sg_cleanup(struct drm_sg_mem * entry);
@ -1071,8 +1069,8 @@ extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
extern void drm_sysfs_destroy(void);
extern int drm_sysfs_device_add(struct drm_device *dev, struct drm_head *head);
extern void drm_sysfs_device_remove(struct drm_device *dev);
extern int drm_sysfs_device_add(struct drm_minor *minor);
extern void drm_sysfs_device_remove(struct drm_minor *minor);
/*
* Basic memory manager support (drm_mm.c)

2
drivers/char/drm/drm_agpsupport.c
View File

@ -122,7 +122,7 @@ EXPORT_SYMBOL(drm_agp_acquire);
int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return drm_agp_acquire((struct drm_device *) file_priv->head->dev);
return drm_agp_acquire((struct drm_device *) file_priv->minor->dev);
}
/**

60
drivers/char/drm/drm_drv.c
View File

@ -313,35 +313,36 @@ static void drm_cleanup(struct drm_device * dev)
drm_ht_remove(&dev->map_hash);
drm_ctxbitmap_cleanup(dev);
drm_put_head(&dev->primary);
drm_put_minor(&dev->primary);
if (drm_put_dev(dev))
DRM_ERROR("Cannot unload module\n");
}
int drm_minors_cleanup(int id, void *ptr, void *data)
{
struct drm_minor *minor = ptr;
struct drm_device *dev;
struct drm_driver *driver = data;
dev = minor->dev;
if (minor->dev->driver != driver)
return 0;
if (minor->type != DRM_MINOR_LEGACY)
return 0;
if (dev)
pci_dev_put(dev->pdev);
drm_cleanup(dev);
return 1;
}
void drm_exit(struct drm_driver *driver)
{
int i;
struct drm_device *dev = NULL;
struct drm_head *head;
DRM_DEBUG("\n");
for (i = 0; i < drm_cards_limit; i++) {
head = drm_heads[i];
if (!head)
continue;
if (!head->dev)
continue;
if (head->dev->driver != driver)
continue;
dev = head->dev;
if (dev) {
/* release the pci driver */
if (dev->pdev)
pci_dev_put(dev->pdev);
drm_cleanup(dev);
}
}
idr_for_each(&drm_minors_idr, &drm_minors_cleanup, driver);
DRM_INFO("Module unloaded\n");
}
@ -357,13 +358,7 @@ static int __init drm_core_init(void)
{
int ret = -ENOMEM;
drm_cards_limit =
(drm_cards_limit <
DRM_MAX_MINOR + 1 ? drm_cards_limit : DRM_MAX_MINOR + 1);
drm_heads =
drm_calloc(drm_cards_limit, sizeof(*drm_heads), DRM_MEM_STUB);
if (!drm_heads)
goto err_p1;
idr_init(&drm_minors_idr);
if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
goto err_p1;
@ -391,7 +386,8 @@ static int __init drm_core_init(void)
drm_sysfs_destroy();
err_p2:
unregister_chrdev(DRM_MAJOR, "drm");
drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB);
idr_destroy(&drm_minors_idr);
err_p1:
return ret;
}
@ -403,7 +399,7 @@ static void __exit drm_core_exit(void)
unregister_chrdev(DRM_MAJOR, "drm");
drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB);
idr_destroy(&drm_minors_idr);
}
module_init(drm_core_init);
@ -452,7 +448,7 @@ int drm_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->head->dev;
struct drm_device *dev = file_priv->minor->dev;
struct drm_ioctl_desc *ioctl;
drm_ioctl_t *func;
unsigned int nr = DRM_IOCTL_NR(cmd);
@ -465,7 +461,7 @@ int drm_ioctl(struct inode *inode, struct file *filp,
DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
task_pid_nr(current), cmd, nr,
(long)old_encode_dev(file_priv->head->device),
(long)old_encode_dev(file_priv->minor->device),
file_priv->authenticated);
if ((nr >= DRM_CORE_IOCTL_COUNT) &&

37
drivers/char/drm/drm_fops.c
View File

@ -129,16 +129,15 @@ static int drm_setup(struct drm_device * dev)
int drm_open(struct inode *inode, struct file *filp)
{
struct drm_device *dev = NULL;
int minor = iminor(inode);
int minor_id = iminor(inode);
struct drm_minor *minor;
int retcode = 0;
if (!((minor >= 0) && (minor < drm_cards_limit)))
minor = idr_find(&drm_minors_idr, minor_id);
if (!minor)
return -ENODEV;
if (!drm_heads[minor])
return -ENODEV;
if (!(dev = drm_heads[minor]->dev))
if (!(dev = minor->dev))
return -ENODEV;
retcode = drm_open_helper(inode, filp, dev);
@ -168,19 +167,18 @@ EXPORT_SYMBOL(drm_open);
int drm_stub_open(struct inode *inode, struct file *filp)
{
struct drm_device *dev = NULL;
int minor = iminor(inode);
struct drm_minor *minor;
int minor_id = iminor(inode);
int err = -ENODEV;
const struct file_operations *old_fops;
DRM_DEBUG("\n");
if (!((minor >= 0) && (minor < drm_cards_limit)))
minor = idr_find(&drm_minors_idr, minor_id);
if (!minor)
return -ENODEV;
if (!drm_heads[minor])
return -ENODEV;
if (!(dev = drm_heads[minor]->dev))
if (!(dev = minor->dev))
return -ENODEV;
old_fops = filp->f_op;
@ -225,7 +223,7 @@ static int drm_cpu_valid(void)
static int drm_open_helper(struct inode *inode, struct file *filp,
struct drm_device * dev)
{
int minor = iminor(inode);
int minor_id = iminor(inode);
struct drm_file *priv;
int ret;
@ -234,7 +232,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
if (!drm_cpu_valid())
return -EINVAL;
DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor);
DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);
priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES);
if (!priv)
@ -245,8 +243,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
priv->filp = filp;
priv->uid = current->euid;
priv->pid = task_pid_nr(current);
priv->minor = minor;
priv->head = drm_heads[minor];
priv->minor = idr_find(&drm_minors_idr, minor_id);
priv->ioctl_count = 0;
/* for compatibility root is always authenticated */
priv->authenticated = capable(CAP_SYS_ADMIN);
@ -297,11 +294,11 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
int drm_fasync(int fd, struct file *filp, int on)
{
struct drm_file *priv = filp->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
int retcode;
DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
(long)old_encode_dev(priv->head->device));
(long)old_encode_dev(priv->minor->device));
retcode = fasync_helper(fd, filp, on, &dev->buf_async);
if (retcode < 0)
return retcode;
@ -324,7 +321,7 @@ EXPORT_SYMBOL(drm_fasync);
int drm_release(struct inode *inode, struct file *filp)
{
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->head->dev;
struct drm_device *dev = file_priv->minor->dev;
int retcode = 0;
unsigned long irqflags;
@ -341,7 +338,7 @@ int drm_release(struct inode *inode, struct file *filp)
DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
task_pid_nr(current),
(long)old_encode_dev(file_priv->head->device),
(long)old_encode_dev(file_priv->minor->device),
dev->open_count);
if (dev->driver->reclaim_buffers_locked && dev->lock.hw_lock) {

61
drivers/char/drm/drm_proc.c
View File

@ -87,34 +87,35 @@ static struct drm_proc_list {
* "/proc/dri/%minor%/", and each entry in proc_list as
* "/proc/dri/%minor%/%name%".
*/
int drm_proc_init(struct drm_device * dev, int minor,
struct proc_dir_entry *root, struct proc_dir_entry **dev_root)
int drm_proc_init(struct drm_minor *minor, int minor_id,
struct proc_dir_entry *root)
{
struct proc_dir_entry *ent;
int i, j;
char name[64];
sprintf(name, "%d", minor);
*dev_root = proc_mkdir(name, root);
if (!*dev_root) {
sprintf(name, "%d", minor_id);
minor->dev_root = proc_mkdir(name, root);
if (!minor->dev_root) {
DRM_ERROR("Cannot create /proc/dri/%s\n", name);
return -1;
}
for (i = 0; i < DRM_PROC_ENTRIES; i++) {
ent = create_proc_entry(drm_proc_list[i].name,
S_IFREG | S_IRUGO, *dev_root);
S_IFREG | S_IRUGO, minor->dev_root);
if (!ent) {
DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
name, drm_proc_list[i].name);
for (j = 0; j < i; j++)
remove_proc_entry(drm_proc_list[i].name,
*dev_root);
minor->dev_root);
remove_proc_entry(name, root);
minor->dev_root = NULL;
return -1;
}
ent->read_proc = drm_proc_list[i].f;
ent->data = dev;
ent->data = minor;
}
return 0;
@ -130,18 +131,17 @@ int drm_proc_init(struct drm_device * dev, int minor,
*
* Remove all proc entries created by proc_init().
*/
int drm_proc_cleanup(int minor, struct proc_dir_entry *root,
struct proc_dir_entry *dev_root)
int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
{
int i;
char name[64];
if (!root || !dev_root)
if (!root || !minor->dev_root)
return 0;
for (i = 0; i < DRM_PROC_ENTRIES; i++)
remove_proc_entry(drm_proc_list[i].name, dev_root);
sprintf(name, "%d", minor);
remove_proc_entry(drm_proc_list[i].name, minor->dev_root);
sprintf(name, "%d", minor->index);
remove_proc_entry(name, root);
return 0;
@ -163,7 +163,8 @@ int drm_proc_cleanup(int minor, struct proc_dir_entry *root,
static int drm_name_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int len = 0;
if (offset > DRM_PROC_LIMIT) {
@ -205,7 +206,8 @@ static int drm_name_info(char *buf, char **start, off_t offset, int request,
static int drm__vm_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int len = 0;
struct drm_map *map;
struct drm_map_list *r_list;
@ -261,7 +263,8 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
static int drm_vm_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int ret;
mutex_lock(&dev->struct_mutex);
@ -284,7 +287,8 @@ static int drm_vm_info(char *buf, char **start, off_t offset, int request,
static int drm__queues_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int len = 0;
int i;
struct drm_queue *q;
@ -334,7 +338,8 @@ static int drm__queues_info(char *buf, char **start, off_t offset,
static int drm_queues_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int ret;
mutex_lock(&dev->struct_mutex);
@ -357,7 +362,8 @@ static int drm_queues_info(char *buf, char **start, off_t offset, int request,
static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int len = 0;
struct drm_device_dma *dma = dev->dma;
int i;
@ -406,7 +412,8 @@ static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int ret;
mutex_lock(&dev->struct_mutex);
@ -429,7 +436,8 @@ static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
static int drm__clients_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int len = 0;
struct drm_file *priv;
@ -445,7 +453,7 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
list_for_each_entry(priv, &dev->filelist, lhead) {
DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
priv->authenticated ? 'y' : 'n',
priv->minor,
priv->minor->index,
priv->pid,
priv->uid, priv->magic, priv->ioctl_count);
}
@ -462,7 +470,8 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
static int drm_clients_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int ret;
mutex_lock(&dev->struct_mutex);
@ -476,7 +485,8 @@ static int drm_clients_info(char *buf, char **start, off_t offset,
static int drm__vma_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int len = 0;
struct drm_vma_entry *pt;
struct vm_area_struct *vma;
@ -535,7 +545,8 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request,
static int drm_vma_info(char *buf, char **start, off_t offset, int request,
int *eof, void *data)
{
struct drm_device *dev = (struct drm_device *) data;
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
int ret;
mutex_lock(&dev->struct_mutex);

138
drivers/char/drm/drm_stub.c
View File

@ -36,23 +36,49 @@
#include "drmP.h"
#include "drm_core.h"
unsigned int drm_cards_limit = 16; /* Enough for one machine */
unsigned int drm_debug = 0; /* 1 to enable debug output */
EXPORT_SYMBOL(drm_debug);
MODULE_AUTHOR(CORE_AUTHOR);
MODULE_DESCRIPTION(CORE_DESC);
MODULE_LICENSE("GPL and additional rights");
MODULE_PARM_DESC(cards_limit, "Maximum number of graphics cards");
MODULE_PARM_DESC(debug, "Enable debug output");
module_param_named(cards_limit, drm_cards_limit, int, 0444);
module_param_named(debug, drm_debug, int, 0600);
struct drm_head **drm_heads;
struct idr drm_minors_idr;
struct class *drm_class;
struct proc_dir_entry *drm_proc_root;
static int drm_minor_get_id(struct drm_device *dev, int type)
{
int new_id;
int ret;
int base = 0, limit = 63;
again:
if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
DRM_ERROR("Out of memory expanding drawable idr\n");
return -ENOMEM;
}
mutex_lock(&dev->struct_mutex);
ret = idr_get_new_above(&drm_minors_idr, NULL,
base, &new_id);
mutex_unlock(&dev->struct_mutex);
if (ret == -EAGAIN) {
goto again;
} else if (ret) {
return ret;
}
if (new_id >= limit) {
idr_remove(&drm_minors_idr, new_id);
return -EINVAL;
}
return new_id;
}
static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
const struct pci_device_id *ent,
struct drm_driver *driver)
@ -145,48 +171,60 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
* create the proc init entry via proc_init(). This routines assigns
* minor numbers to secondary heads of multi-headed cards
*/
static int drm_get_head(struct drm_device * dev, struct drm_head * head)
static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type)
{
struct drm_head **heads = drm_heads;
struct drm_minor *new_minor;
int ret;
int minor;
int minor_id;
DRM_DEBUG("\n");
for (minor = 0; minor < drm_cards_limit; minor++, heads++) {
if (!*heads) {
minor_id = drm_minor_get_id(dev, type);
if (minor_id < 0)
return minor_id;
*head = (struct drm_head) {
.dev = dev,.device =
MKDEV(DRM_MAJOR, minor),.minor = minor,};
if ((ret =
drm_proc_init(dev, minor, drm_proc_root,
&head->dev_root))) {
printk(KERN_ERR
"DRM: Failed to initialize /proc/dri.\n");
goto err_g1;
}
ret = drm_sysfs_device_add(dev, head);
if (ret) {
printk(KERN_ERR
"DRM: Error sysfs_device_add.\n");
goto err_g2;
}
*heads = head;
DRM_DEBUG("new minor assigned %d\n", minor);
return 0;
}
new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
if (!new_minor) {
ret = -ENOMEM;
goto err_idr;
}
DRM_ERROR("out of minors\n");
return -ENOMEM;
err_g2:
drm_proc_cleanup(minor, drm_proc_root, head->dev_root);
err_g1:
*head = (struct drm_head) {
.dev = NULL};
new_minor->type = type;
new_minor->device = MKDEV(DRM_MAJOR, minor_id);
new_minor->dev = dev;
new_minor->index = minor_id;
idr_replace(&drm_minors_idr, new_minor, minor_id);
if (type == DRM_MINOR_LEGACY) {
ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
if (ret) {
DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
goto err_mem;
}
} else
new_minor->dev_root = NULL;
ret = drm_sysfs_device_add(new_minor);
if (ret) {
printk(KERN_ERR
"DRM: Error sysfs_device_add.\n");
goto err_g2;
}
*minor = new_minor;
DRM_DEBUG("new minor assigned %d\n", minor_id);
return 0;
err_g2:
if (new_minor->type == DRM_MINOR_LEGACY)
drm_proc_cleanup(new_minor, drm_proc_root);
err_mem:
kfree(new_minor);
err_idr:
idr_remove(&drm_minors_idr, minor_id);
*minor = NULL;
return ret;
}
@ -222,12 +260,12 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
goto err_g2;
}
if ((ret = drm_get_head(dev, &dev->primary)))
if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY)))
goto err_g2;
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
driver->name, driver->major, driver->minor, driver->patchlevel,
driver->date, dev->primary.minor);
driver->date, dev->primary->index);
return 0;
@ -276,18 +314,18 @@ int drm_put_dev(struct drm_device * dev)
* last minor released.
*
*/
int drm_put_head(struct drm_head * head)
int drm_put_minor(struct drm_minor **minor_p)
{
int minor = head->minor;
struct drm_minor *minor = *minor_p;
DRM_DEBUG("release secondary minor %d\n", minor->index);
DRM_DEBUG("release secondary minor %d\n", minor);
if (minor->type == DRM_MINOR_LEGACY)
drm_proc_cleanup(minor, drm_proc_root);
drm_sysfs_device_remove(minor);
drm_proc_cleanup(minor, drm_proc_root, head->dev_root);
drm_sysfs_device_remove(head->dev);
*head = (struct drm_head) {.dev = NULL};
drm_heads[minor] = NULL;
idr_remove(&drm_minors_idr, minor->index);
kfree(minor);
*minor_p = NULL;
return 0;
}

46
drivers/char/drm/drm_sysfs.c
View File

@ -19,7 +19,7 @@
#include "drm_core.h"
#include "drmP.h"
#define to_drm_device(d) container_of(d, struct drm_device, dev)
#define to_drm_minor(d) container_of(d, struct drm_minor, kdev)
/**
* drm_sysfs_suspend - DRM class suspend hook
@ -31,7 +31,8 @@
*/
static int drm_sysfs_suspend(struct device *dev, pm_message_t state)
{
struct drm_device *drm_dev = to_drm_device(dev);
struct drm_minor *drm_minor = to_drm_minor(dev);
struct drm_device *drm_dev = drm_minor->dev;
printk(KERN_ERR "%s\n", __FUNCTION__);
@ -50,7 +51,8 @@ static int drm_sysfs_suspend(struct device *dev, pm_message_t state)
*/
static int drm_sysfs_resume(struct device *dev)
{
struct drm_device *drm_dev = to_drm_device(dev);
struct drm_minor *drm_minor = to_drm_minor(dev);
struct drm_device *drm_dev = drm_minor->dev;
if (drm_dev->driver->resume)
return drm_dev->driver->resume(drm_dev);
@ -120,10 +122,11 @@ void drm_sysfs_destroy(void)
static ssize_t show_dri(struct device *device, struct device_attribute *attr,
char *buf)
{
struct drm_device *dev = to_drm_device(device);
if (dev->driver->dri_library_name)
return dev->driver->dri_library_name(dev, buf);
return snprintf(buf, PAGE_SIZE, "%s\n", dev->driver->pci_driver.name);
struct drm_minor *drm_minor = to_drm_minor(device);
struct drm_device *drm_dev = drm_minor->dev;
if (drm_dev->driver->dri_library_name)
return drm_dev->driver->dri_library_name(drm_dev, buf);
return snprintf(buf, PAGE_SIZE, "%s\n", drm_dev->driver->pci_driver.name);
}
static struct device_attribute device_attrs[] = {
@ -152,25 +155,28 @@ static void drm_sysfs_device_release(struct device *dev)
* as the parent for the Linux device, and make sure it has a file containing
* the driver we're using (for userspace compatibility).
*/
int drm_sysfs_device_add(struct drm_device *dev, struct drm_head *head)
int drm_sysfs_device_add(struct drm_minor *minor)
{
int err;
int i, j;
char *minor_str;
dev->dev.parent = &dev->pdev->dev;
dev->dev.class = drm_class;
dev->dev.release = drm_sysfs_device_release;
dev->dev.devt = head->device;
snprintf(dev->dev.bus_id, BUS_ID_SIZE, "card%d", head->minor);
minor->kdev.parent = &minor->dev->pdev->dev;
minor->kdev.class = drm_class;
minor->kdev.release = drm_sysfs_device_release;
minor->kdev.devt = minor->device;
minor_str = "card%d";
err = device_register(&dev->dev);
snprintf(minor->kdev.bus_id, BUS_ID_SIZE, minor_str, minor->index);
err = device_register(&minor->kdev);
if (err) {
DRM_ERROR("device add failed: %d\n", err);
goto err_out;
}
for (i = 0; i < ARRAY_SIZE(device_attrs); i++) {
err = device_create_file(&dev->dev, &device_attrs[i]);
err = device_create_file(&minor->kdev, &device_attrs[i]);
if (err)
goto err_out_files;
}
@ -180,8 +186,8 @@ int drm_sysfs_device_add(struct drm_device *dev, struct drm_head *head)
err_out_files:
if (i > 0)
for (j = 0; j < i; j++)
device_remove_file(&dev->dev, &device_attrs[i]);
device_unregister(&dev->dev);
device_remove_file(&minor->kdev, &device_attrs[i]);
device_unregister(&minor->kdev);
err_out:
return err;
@ -194,11 +200,11 @@ int drm_sysfs_device_add(struct drm_device *dev, struct drm_head *head)
* This call unregisters and cleans up a class device that was created with a
* call to drm_sysfs_device_add()
*/
void drm_sysfs_device_remove(struct drm_device *dev)
void drm_sysfs_device_remove(struct drm_minor *minor)
{
int i;
for (i = 0; i < ARRAY_SIZE(device_attrs); i++)
device_remove_file(&dev->dev, &device_attrs[i]);
device_unregister(&dev->dev);
device_remove_file(&minor->kdev, &device_attrs[i]);
device_unregister(&minor->kdev);
}

20
drivers/char/drm/drm_vm.c
View File

@ -90,7 +90,7 @@ static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma)
static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_map *map = NULL;
struct drm_map_list *r_list;
struct drm_hash_item *hash;
@ -207,7 +207,7 @@ static int drm_do_vm_shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
static void drm_vm_shm_close(struct vm_area_struct *vma)
{
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_vma_entry *pt, *temp;
struct drm_map *map;
struct drm_map_list *r_list;
@ -286,7 +286,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_device_dma *dma = dev->dma;
unsigned long offset;
unsigned long page_nr;
@ -321,7 +321,7 @@ static int drm_do_vm_sg_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct drm_map *map = (struct drm_map *) vma->vm_private_data;
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_sg_mem *entry = dev->sg;
unsigned long offset;
unsigned long map_offset;
@ -402,7 +402,7 @@ static struct vm_operations_struct drm_vm_sg_ops = {
static void drm_vm_open_locked(struct vm_area_struct *vma)
{
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_vma_entry *vma_entry;
DRM_DEBUG("0x%08lx,0x%08lx\n",
@ -420,7 +420,7 @@ static void drm_vm_open_locked(struct vm_area_struct *vma)
static void drm_vm_open(struct vm_area_struct *vma)
{
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
mutex_lock(&dev->struct_mutex);
drm_vm_open_locked(vma);
@ -438,7 +438,7 @@ static void drm_vm_open(struct vm_area_struct *vma)
static void drm_vm_close(struct vm_area_struct *vma)
{
struct drm_file *priv = vma->vm_file->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_vma_entry *pt, *temp;
DRM_DEBUG("0x%08lx,0x%08lx\n",
@ -473,7 +473,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
struct drm_device_dma *dma;
unsigned long length = vma->vm_end - vma->vm_start;
dev = priv->head->dev;
dev = priv->minor->dev;
dma = dev->dma;
DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
vma->vm_start, vma->vm_end, vma->vm_pgoff);
@ -543,7 +543,7 @@ EXPORT_SYMBOL(drm_core_get_reg_ofs);
static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *priv = filp->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
struct drm_map *map = NULL;
unsigned long offset = 0;
struct drm_hash_item *hash;
@ -661,7 +661,7 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
int drm_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *priv = filp->private_data;
struct drm_device *dev = priv->head->dev;
struct drm_device *dev = priv->minor->dev;
int ret;
mutex_lock(&dev->struct_mutex);

4
drivers/char/drm/i810_dma.c
View File

@ -94,7 +94,7 @@ static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
drm_i810_buf_priv_t *buf_priv;
lock_kernel();
dev = priv->head->dev;
dev = priv->minor->dev;
dev_priv = dev->dev_private;
buf = dev_priv->mmap_buffer;
buf_priv = buf->dev_private;
@ -122,7 +122,7 @@ static const struct file_operations i810_buffer_fops = {
static int i810_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
{
struct drm_device *dev = file_priv->head->dev;
struct drm_device *dev = file_priv->minor->dev;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_private_t *dev_priv = dev->dev_private;
const struct file_operations *old_fops;

4
drivers/char/drm/i830_dma.c
View File

@ -96,7 +96,7 @@ static int i830_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
drm_i830_buf_priv_t *buf_priv;
lock_kernel();
dev = priv->head->dev;
dev = priv->minor->dev;
dev_priv = dev->dev_private;
buf = dev_priv->mmap_buffer;
buf_priv = buf->dev_private;
@ -124,7 +124,7 @@ static const struct file_operations i830_buffer_fops = {
static int i830_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
{
struct drm_device *dev = file_priv->head->dev;
struct drm_device *dev = file_priv->minor->dev;
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
drm_i830_private_t *dev_priv = dev->dev_private;
const struct file_operations *old_fops;