*/
#include <linux/debugfs.h>
+#include <linux/slab.h>
#include "drmP.h"
#include "drm_core.h"
DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER),
DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, 0),
- DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH),
-
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
+
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED)
};
#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
if (entry->bound)
drm_unbind_agp(entry->memory);
drm_free_agp(entry->memory, entry->pages);
- drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
+ kfree(entry);
}
INIT_LIST_HEAD(&dev->agp->memory);
/* Clear vma list (only built for debugging) */
list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) {
list_del(&vma->head);
- drm_free(vma, sizeof(*vma), DRM_MEM_VMAS);
+ kfree(vma);
}
if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
for (i = 0; i < dev->queue_count; i++) {
- if (dev->queuelist[i]) {
- drm_free(dev->queuelist[i],
- sizeof(*dev->queuelist[0]),
- DRM_MEM_QUEUES);
- dev->queuelist[i] = NULL;
- }
+ kfree(dev->queuelist[i]);
+ dev->queuelist[i] = NULL;
}
- drm_free(dev->queuelist,
- dev->queue_slots * sizeof(*dev->queuelist),
- DRM_MEM_QUEUES);
+ kfree(dev->queuelist);
dev->queuelist = NULL;
}
dev->queue_count = 0;
int drm_init(struct drm_driver *driver)
{
struct pci_dev *pdev = NULL;
- struct pci_device_id *pid;
+ const struct pci_device_id *pid;
int i;
DRM_DEBUG("\n");
INIT_LIST_HEAD(&driver->device_list);
+ if (driver->driver_features & DRIVER_MODESET)
+ return pci_register_driver(&driver->pci_driver);
+
+ /* If not using KMS, fall back to stealth mode manual scanning. */
for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
- pid = (struct pci_device_id *)&driver->pci_driver.id_table[i];
+ pid = &driver->pci_driver.id_table[i];
/* Loop around setting up a DRM device for each PCI device
* matching our ID and device class. If we had the internal
EXPORT_SYMBOL(drm_init);
-/**
- * Called via cleanup_module() at module unload time.
- *
- * Cleans up all DRM device, calling drm_lastclose().
- *
- * \sa drm_init
- */
-static void drm_cleanup(struct drm_device * dev)
-{
- struct drm_map_list *r_list, *list_temp;
- DRM_DEBUG("\n");
-
- if (!dev) {
- DRM_ERROR("cleanup called no dev\n");
- return;
- }
-
- drm_vblank_cleanup(dev);
-
- drm_lastclose(dev);
-
- if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
- dev->agp && dev->agp->agp_mtrr >= 0) {
- int retval;
- retval = mtrr_del(dev->agp->agp_mtrr,
- dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size * 1024 * 1024);
- DRM_DEBUG("mtrr_del=%d\n", retval);
- }
-
- if (dev->driver->unload)
- dev->driver->unload(dev);
-
- if (drm_core_has_AGP(dev) && dev->agp) {
- drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS);
- dev->agp = NULL;
- }
-
- drm_ht_remove(&dev->map_hash);
- drm_ctxbitmap_cleanup(dev);
-
- list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
- drm_rmmap(dev, r_list->map);
-
- if (drm_core_check_feature(dev, DRIVER_MODESET))
- drm_put_minor(&dev->control);
-
- if (dev->driver->driver_features & DRIVER_GEM)
- drm_gem_destroy(dev);
-
- drm_put_minor(&dev->primary);
- if (drm_put_dev(dev))
- DRM_ERROR("Cannot unload module\n");
-}
-
void drm_exit(struct drm_driver *driver)
{
struct drm_device *dev, *tmp;
DRM_DEBUG("\n");
- list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
- drm_cleanup(dev);
+ if (driver->driver_features & DRIVER_MODESET) {
+ pci_unregister_driver(&driver->pci_driver);
+ } else {
+ list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item)
+ drm_put_dev(dev);
+ }
DRM_INFO("Module unloaded\n");
}
drm_debugfs_root = debugfs_create_dir("dri", NULL);
if (!drm_debugfs_root) {
- DRM_ERROR("Cannot create /debugfs/dri\n");
+ DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
ret = -1;
goto err_p3;
}
- drm_mem_init();
-
DRM_INFO("Initialized %s %d.%d.%d %s\n",
CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
return 0;
module_exit(drm_core_exit);
/**
+ * Copy and IOCTL return string to user space
+ */
+static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
+{
+ int len;
+
+ /* don't overflow userbuf */
+ len = strlen(value);
+ if (len > *buf_len)
+ len = *buf_len;
+
+ /* let userspace know exact length of driver value (which could be
+ * larger than the userspace-supplied buffer) */
+ *buf_len = strlen(value);
+
+ /* finally, try filling in the userbuf */
+ if (len && buf)
+ if (copy_to_user(buf, value, len))
+ return -EFAULT;
+ return 0;
+}
+
+/**
* Get version information
*
* \param inode device inode.
struct drm_file *file_priv)
{
struct drm_version *version = data;
- int len;
+ int err;
version->version_major = dev->driver->major;
version->version_minor = dev->driver->minor;
version->version_patchlevel = dev->driver->patchlevel;
- DRM_COPY(version->name, dev->driver->name);
- DRM_COPY(version->date, dev->driver->date);
- DRM_COPY(version->desc, dev->driver->desc);
-
- return 0;
+ err = drm_copy_field(version->name, &version->name_len,
+ dev->driver->name);
+ if (!err)
+ err = drm_copy_field(version->date, &version->date_len,
+ dev->driver->date);
+ if (!err)
+ err = drm_copy_field(version->desc, &version->desc_len,
+ dev->driver->desc);
+
+ return err;
}
/**
* Looks up the ioctl function in the ::ioctls table, checking for root
* previleges if so required, and dispatches to the respective function.
*/
-int drm_ioctl(struct inode *inode, struct file *filp,
+long drm_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct drm_file *file_priv = filp->private_data;
- struct drm_device *dev = file_priv->minor->dev;
+ struct drm_device *dev;
struct drm_ioctl_desc *ioctl;
drm_ioctl_t *func;
unsigned int nr = DRM_IOCTL_NR(cmd);
int retcode = -EINVAL;
+ char stack_kdata[128];
char *kdata = NULL;
+ dev = file_priv->minor->dev;
atomic_inc(&dev->ioctl_count);
atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
++file_priv->ioctl_count;
retcode = -EINVAL;
} else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
- ((ioctl->flags & DRM_MASTER) && !file_priv->is_master)) {
+ ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
+ (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) {
retcode = -EACCES;
} else {
if (cmd & (IOC_IN | IOC_OUT)) {
- kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
- if (!kdata) {
- retcode = -ENOMEM;
- goto err_i1;
+ if (_IOC_SIZE(cmd) <= sizeof(stack_kdata)) {
+ kdata = stack_kdata;
+ } else {
+ kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
+ if (!kdata) {
+ retcode = -ENOMEM;
+ goto err_i1;
+ }
}
}
goto err_i1;
}
}
- retcode = func(dev, kdata, file_priv);
+ if (ioctl->flags & DRM_UNLOCKED)
+ retcode = func(dev, kdata, file_priv);
+ else {
+ lock_kernel();
+ retcode = func(dev, kdata, file_priv);
+ unlock_kernel();
+ }
- if ((retcode == 0) && (cmd & IOC_OUT)) {
+ if (cmd & IOC_OUT) {
if (copy_to_user((void __user *)arg, kdata,
_IOC_SIZE(cmd)) != 0)
retcode = -EFAULT;
}
err_i1:
- if (kdata)
+ if (kdata != stack_kdata)
kfree(kdata);
atomic_dec(&dev->ioctl_count);
if (retcode)
EXPORT_SYMBOL(drm_ioctl);
-drm_local_map_t *drm_getsarea(struct drm_device *dev)
+struct drm_local_map *drm_getsarea(struct drm_device *dev)
{
struct drm_map_list *entry;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff