aboutsummaryrefslogtreecommitdiff
path: root/drivers/char
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/drm/drmP.h42
-rw-r--r--drivers/char/drm/drm_agpsupport.c2
-rw-r--r--drivers/char/drm/drm_drv.c60
-rw-r--r--drivers/char/drm/drm_fops.c37
-rw-r--r--drivers/char/drm/drm_proc.c61
-rw-r--r--drivers/char/drm/drm_stub.c138
-rw-r--r--drivers/char/drm/drm_sysfs.c46
-rw-r--r--drivers/char/drm/drm_vm.c20
-rw-r--r--drivers/char/drm/i810_dma.c4
-rw-r--r--drivers/char/drm/i830_dma.c4
10 files changed, 230 insertions, 184 deletions
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 6540948d517..5446235094d 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -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)
diff --git a/drivers/char/drm/drm_agpsupport.c b/drivers/char/drm/drm_agpsupport.c
index 9468c7889ff..aefa5ac4c0b 100644
--- a/drivers/char/drm/drm_agpsupport.c
+++ b/drivers/char/drm/drm_agpsupport.c
@@ -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);
}
/**
diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c
index 0e7af53c87d..fc54140551a 100644
--- a/drivers/char/drm/drm_drv.c
+++ b/drivers/char/drm/drm_drv.c
@@ -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");
}
-void drm_exit(struct drm_driver *driver)
+int drm_minors_cleanup(int id, void *ptr, void *data)
{
- int i;
- struct drm_device *dev = NULL;
- struct drm_head *head;
+ 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)
+{
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 @@ err_p3:
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) &&
diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c
index f09d4b5002b..df7bf48be69 100644
--- a/drivers/char/drm/drm_fops.c
+++ b/drivers/char/drm/drm_fops.c
@@ -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)))
- return -ENODEV;
-
- if (!drm_heads[minor])
+ minor = idr_find(&drm_minors_idr, minor_id);
+ if (!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) {
diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c
index d9b560fe9bb..93b1e0475c9 100644
--- a/drivers/char/drm/drm_proc.c
+++ b/drivers/char/drm/drm_proc.c
@@ -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);
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index d93a217f856..c2f584f3b46 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -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) {
-
- *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;
+ minor_id = drm_minor_get_id(dev, type);
+ if (minor_id < 0)
+ return minor_id;
+
+ new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
+ if (!new_minor) {
+ ret = -ENOMEM;
+ goto err_idr;
+ }
+
+ 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;
}
- 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};
+ *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;
-
- DRM_DEBUG("release secondary minor %d\n", minor);
-
- drm_proc_cleanup(minor, drm_proc_root, head->dev_root);
- drm_sysfs_device_remove(head->dev);
+ struct drm_minor *minor = *minor_p;
+ DRM_DEBUG("release secondary minor %d\n", minor->index);
- *head = (struct drm_head) {.dev = NULL};
+ if (minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(minor, drm_proc_root);
+ drm_sysfs_device_remove(minor);
- drm_heads[minor] = NULL;
+ idr_remove(&drm_minors_idr, minor->index);
+ kfree(minor);
+ *minor_p = NULL;
return 0;
}
diff --git a/drivers/char/drm/drm_sysfs.c b/drivers/char/drm/drm_sysfs.c
index 05ed5043254..7a1d9a782dd 100644
--- a/drivers/char/drm/drm_sysfs.c
+++ b/drivers/char/drm/drm_sysfs.c
@@ -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 @@ err_out:
* 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);
}
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index b20c1e950d3..c234c6f24a8 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -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);
diff --git a/drivers/char/drm/i810_dma.c b/drivers/char/drm/i810_dma.c
index 8d7ea81c4b6..e5de8ea4154 100644
--- a/drivers/char/drm/i810_dma.c
+++ b/drivers/char/drm/i810_dma.c
@@ -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;
diff --git a/drivers/char/drm/i830_dma.c b/drivers/char/drm/i830_dma.c
index 9df08105f4f..60c9376be48 100644
--- a/drivers/char/drm/i830_dma.c
+++ b/drivers/char/drm/i830_dma.c
@@ -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;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 09:11:30 +0000