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fix for drm in /proc - from Jon Smirl

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This commit is contained in:
Dave Airlie 2004-08-03 09:21:11 +00:00
parent 33b740ad99
commit 4f8f02a192
8 changed files with 66 additions and 62 deletions
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8
linux-core/drmP.h
View file

@ -927,10 +927,10 @@ int DRM(stub_register)(const char *name,
int DRM(stub_unregister)(int minor);
/* Proc support (drm_proc.h) */
extern struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev,
int minor,
struct proc_dir_entry *root,
struct proc_dir_entry **dev_root);
extern int DRM(proc_init)(drm_device_t *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);

3
linux-core/drm_drv.c
View file

@ -153,6 +153,7 @@ struct drm_stub_info {
int (*info_unregister)(int minor);
struct class_simple *drm_class;
int *info_count;
struct proc_dir_entry *proc_root;
};
extern struct drm_stub_info DRM(stub_info);
@ -775,7 +776,7 @@ static void __exit drm_cleanup( drm_device_t *dev )
}
#endif
class_simple_device_remove(MKDEV(DRM_MAJOR, 0));
class_simple_device_remove(MKDEV(DRM_MAJOR, dev->minor));
}
static void __exit drm_exit (void)

17
linux-core/drm_proc.c
View file

@ -87,7 +87,7 @@ struct drm_proc_list {
* "/proc/dri/%minor%/", and each entry in proc_list as
* "/proc/dri/%minor%/%name%".
*/
struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
int DRM(proc_init)(drm_device_t *dev, int minor,
struct proc_dir_entry *root,
struct proc_dir_entry **dev_root)
{
@ -95,17 +95,11 @@ struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
int i, j;
char name[64];
if (!minor) root = create_proc_entry("dri", S_IFDIR, NULL);
if (!root) {
DRM_ERROR("Cannot create /proc/dri\n");
return NULL;
}
sprintf(name, "%d", minor);
*dev_root = create_proc_entry(name, S_IFDIR, root);
if (!*dev_root) {
DRM_ERROR("Cannot create /proc/dri/%s\n", name);
return NULL;
return -1;
}
for (i = 0; i < DRM_PROC_ENTRIES; i++) {
@ -118,14 +112,12 @@ struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
remove_proc_entry(DRM(proc_list)[i].name,
*dev_root);
remove_proc_entry(name, root);
if (!minor) remove_proc_entry("dri", NULL);
return NULL;
return -1;
}
ent->read_proc = DRM(proc_list)[i].f;
ent->data = dev;
}
return root;
return 0;
}
@ -151,7 +143,6 @@ int DRM(proc_cleanup)(int minor, struct proc_dir_entry *root,
remove_proc_entry(DRM(proc_list)[i].name, dev_root);
sprintf(name, "%d", minor);
remove_proc_entry(name, root);
if (!minor) remove_proc_entry("dri", NULL);
return 0;
}

36
linux-core/drm_stub.c
View file

@ -43,8 +43,6 @@ static struct drm_stub_list {
struct proc_dir_entry *dev_root; /**< proc directory entry */
} *DRM(stub_list);
static struct proc_dir_entry *DRM(stub_root);
/**
* File \c open operation.
*
@ -175,9 +173,8 @@ static int DRM(stub_getminor)(const char *name, struct file_operations *fops,
if (!DRM(stub_list)[i].fops) {
DRM(stub_list)[i].name = name;
DRM(stub_list)[i].fops = fops;
DRM(stub_root) = DRM(proc_init)(dev, i, DRM(stub_root),
&DRM(stub_list)[i]
.dev_root);
DRM(proc_init)(dev, i, DRM(stub_info).proc_root,
&DRM(stub_list)[i].dev_root);
(*DRM(stub_info).info_count)++;
DRM_DEBUG("info count increased %d\n", *DRM(stub_info).info_count);
return i;
@ -201,13 +198,13 @@ static int DRM(stub_putminor)(int minor)
if (minor < 0 || minor >= DRM_STUB_MAXCARDS) return -1;
DRM(stub_list)[minor].name = NULL;
DRM(stub_list)[minor].fops = NULL;
DRM(proc_cleanup)(minor, DRM(stub_root),
DRM(proc_cleanup)(minor, DRM(stub_info).proc_root,
DRM(stub_list)[minor].dev_root);
(*DRM(stub_info).info_count)--;
if ((*DRM(stub_info).info_count)!=0) {
if (DRM(numdevs)==0) {
if ((*DRM(stub_info).info_count) != 0) {
if (DRM(numdevs) == 0) {
DRM_DEBUG("inter_module_put called %d\n", *DRM(stub_info).info_count);
inter_module_put("drm");
}
@ -217,6 +214,7 @@ static int DRM(stub_putminor)(int minor)
DRM(free)(DRM(stub_list),
sizeof(*DRM(stub_list)) * DRM_STUB_MAXCARDS,
DRM_MEM_STUB);
remove_proc_entry("dri", NULL);
class_simple_destroy(DRM(stub_info).drm_class);
unregister_chrdev(DRM_MAJOR, "drm");
}
@ -269,27 +267,38 @@ int DRM(stub_register)(const char *name, struct file_operations *fops,
}
DRM(stub_info).drm_class = class_simple_create(THIS_MODULE, "drm");
class_simple_set_hotplug(DRM(stub_info).drm_class, drm_hotplug);
if (IS_ERR(DRM(stub_info).drm_class)) {
printk (KERN_ERR "Error creating drm class.\n");
unregister_chrdev(DRM_MAJOR, "drm");
return PTR_ERR(DRM(stub_info).drm_class);
}
class_simple_set_hotplug(DRM(stub_info).drm_class, drm_hotplug);
DRM_DEBUG("calling inter_module_register\n");
inter_module_register("drm", THIS_MODULE, &DRM(stub_info));
DRM(stub_info).proc_root = create_proc_entry("dri", S_IFDIR, NULL);
if (!DRM(stub_info).proc_root) {
DRM_ERROR("Cannot create /proc/dri\n");
inter_module_unregister("drm");
unregister_chrdev(DRM_MAJOR, "drm");
class_simple_destroy(DRM(stub_info).drm_class);
return -1;
}
}
}
else
} else
DRM_DEBUG("already retrieved inter_module information\n");
if (DRM(stub_info).info_register) {
ret2 = DRM(stub_info).info_register(name, fops, dev);
if (ret2 < 0) {
if (DRM(numdevs)==0 && !i) {
if (DRM(numdevs) == 0 && !i) {
inter_module_unregister("drm");
unregister_chrdev(DRM_MAJOR, "drm");
class_simple_destroy(DRM(stub_info).drm_class);
DRM_DEBUG("info_register failed deregistered everything\n");
remove_proc_entry("dri", NULL);
DRM_DEBUG("info_register failed, deregistered everything\n");
}
DRM_DEBUG("info_register failed\n");
}
@ -321,4 +330,5 @@ struct drm_stub_info DRM(stub_info) = {
.info_unregister = DRM(stub_putminor),
.drm_class = NULL,
.info_count = &DRM(stub_count),
.proc_root = NULL,
};

8
linux/drmP.h
View file

@ -927,10 +927,10 @@ int DRM(stub_register)(const char *name,
int DRM(stub_unregister)(int minor);
/* Proc support (drm_proc.h) */
extern struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev,
int minor,
struct proc_dir_entry *root,
struct proc_dir_entry **dev_root);
extern int DRM(proc_init)(drm_device_t *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);

3
linux/drm_drv.h
View file

@ -153,6 +153,7 @@ struct drm_stub_info {
int (*info_unregister)(int minor);
struct class_simple *drm_class;
int *info_count;
struct proc_dir_entry *proc_root;
};
extern struct drm_stub_info DRM(stub_info);
@ -775,7 +776,7 @@ static void __exit drm_cleanup( drm_device_t *dev )
}
#endif
class_simple_device_remove(MKDEV(DRM_MAJOR, 0));
class_simple_device_remove(MKDEV(DRM_MAJOR, dev->minor));
}
static void __exit drm_exit (void)

17
linux/drm_proc.h
View file

@ -87,7 +87,7 @@ struct drm_proc_list {
* "/proc/dri/%minor%/", and each entry in proc_list as
* "/proc/dri/%minor%/%name%".
*/
struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
int DRM(proc_init)(drm_device_t *dev, int minor,
struct proc_dir_entry *root,
struct proc_dir_entry **dev_root)
{
@ -95,17 +95,11 @@ struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
int i, j;
char name[64];
if (!minor) root = create_proc_entry("dri", S_IFDIR, NULL);
if (!root) {
DRM_ERROR("Cannot create /proc/dri\n");
return NULL;
}
sprintf(name, "%d", minor);
*dev_root = create_proc_entry(name, S_IFDIR, root);
if (!*dev_root) {
DRM_ERROR("Cannot create /proc/dri/%s\n", name);
return NULL;
return -1;
}
for (i = 0; i < DRM_PROC_ENTRIES; i++) {
@ -118,14 +112,12 @@ struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
remove_proc_entry(DRM(proc_list)[i].name,
*dev_root);
remove_proc_entry(name, root);
if (!minor) remove_proc_entry("dri", NULL);
return NULL;
return -1;
}
ent->read_proc = DRM(proc_list)[i].f;
ent->data = dev;
}
return root;
return 0;
}
@ -151,7 +143,6 @@ int DRM(proc_cleanup)(int minor, struct proc_dir_entry *root,
remove_proc_entry(DRM(proc_list)[i].name, dev_root);
sprintf(name, "%d", minor);
remove_proc_entry(name, root);
if (!minor) remove_proc_entry("dri", NULL);
return 0;
}

36
linux/drm_stub.h
View file

@ -43,8 +43,6 @@ static struct drm_stub_list {
struct proc_dir_entry *dev_root; /**< proc directory entry */
} *DRM(stub_list);
static struct proc_dir_entry *DRM(stub_root);
/**
* File \c open operation.
*
@ -175,9 +173,8 @@ static int DRM(stub_getminor)(const char *name, struct file_operations *fops,
if (!DRM(stub_list)[i].fops) {
DRM(stub_list)[i].name = name;
DRM(stub_list)[i].fops = fops;
DRM(stub_root) = DRM(proc_init)(dev, i, DRM(stub_root),
&DRM(stub_list)[i]
.dev_root);
DRM(proc_init)(dev, i, DRM(stub_info).proc_root,
&DRM(stub_list)[i].dev_root);
(*DRM(stub_info).info_count)++;
DRM_DEBUG("info count increased %d\n", *DRM(stub_info).info_count);
return i;
@ -201,13 +198,13 @@ static int DRM(stub_putminor)(int minor)
if (minor < 0 || minor >= DRM_STUB_MAXCARDS) return -1;
DRM(stub_list)[minor].name = NULL;
DRM(stub_list)[minor].fops = NULL;
DRM(proc_cleanup)(minor, DRM(stub_root),
DRM(proc_cleanup)(minor, DRM(stub_info).proc_root,
DRM(stub_list)[minor].dev_root);
(*DRM(stub_info).info_count)--;
if ((*DRM(stub_info).info_count)!=0) {
if (DRM(numdevs)==0) {
if ((*DRM(stub_info).info_count) != 0) {
if (DRM(numdevs) == 0) {
DRM_DEBUG("inter_module_put called %d\n", *DRM(stub_info).info_count);
inter_module_put("drm");
}
@ -217,6 +214,7 @@ static int DRM(stub_putminor)(int minor)
DRM(free)(DRM(stub_list),
sizeof(*DRM(stub_list)) * DRM_STUB_MAXCARDS,
DRM_MEM_STUB);
remove_proc_entry("dri", NULL);
class_simple_destroy(DRM(stub_info).drm_class);
unregister_chrdev(DRM_MAJOR, "drm");
}
@ -269,27 +267,38 @@ int DRM(stub_register)(const char *name, struct file_operations *fops,
}
DRM(stub_info).drm_class = class_simple_create(THIS_MODULE, "drm");
class_simple_set_hotplug(DRM(stub_info).drm_class, drm_hotplug);
if (IS_ERR(DRM(stub_info).drm_class)) {
printk (KERN_ERR "Error creating drm class.\n");
unregister_chrdev(DRM_MAJOR, "drm");
return PTR_ERR(DRM(stub_info).drm_class);
}
class_simple_set_hotplug(DRM(stub_info).drm_class, drm_hotplug);
DRM_DEBUG("calling inter_module_register\n");
inter_module_register("drm", THIS_MODULE, &DRM(stub_info));
DRM(stub_info).proc_root = create_proc_entry("dri", S_IFDIR, NULL);
if (!DRM(stub_info).proc_root) {
DRM_ERROR("Cannot create /proc/dri\n");
inter_module_unregister("drm");
unregister_chrdev(DRM_MAJOR, "drm");
class_simple_destroy(DRM(stub_info).drm_class);
return -1;
}
}
}
else
} else
DRM_DEBUG("already retrieved inter_module information\n");
if (DRM(stub_info).info_register) {
ret2 = DRM(stub_info).info_register(name, fops, dev);
if (ret2 < 0) {
if (DRM(numdevs)==0 && !i) {
if (DRM(numdevs) == 0 && !i) {
inter_module_unregister("drm");
unregister_chrdev(DRM_MAJOR, "drm");
class_simple_destroy(DRM(stub_info).drm_class);
DRM_DEBUG("info_register failed deregistered everything\n");
remove_proc_entry("dri", NULL);
DRM_DEBUG("info_register failed, deregistered everything\n");
}
DRM_DEBUG("info_register failed\n");
}
@ -321,4 +330,5 @@ struct drm_stub_info DRM(stub_info) = {
.info_unregister = DRM(stub_putminor),
.drm_class = NULL,
.info_count = &DRM(stub_count),
.proc_root = NULL,
};