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drm: add _DRM_DRIVER flag, and re-order unload. 

Allow drivers to addmaps that won't be removed by lastclose or unload.
The unload needs to be re-ordered to avoid removing the hashs before
the driver has removed the final maps.

Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie 2007-12-17 09:41:56 +10:00
parent 77e27e9fe5
commit e3236a1173
3 changed files with 11 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/char/drm/drm.h
View File

@ -202,7 +202,8 @@ enum drm_map_flags {
_DRM_KERNEL = 0x08, /**< kernel requires access */
_DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */
_DRM_CONTAINS_LOCK = 0x20, /**< SHM page that contains lock */
_DRM_REMOVABLE = 0x40 /**< Removable mapping */
_DRM_REMOVABLE = 0x40, /**< Removable mapping */
_DRM_DRIVER = 0x80 /**< Managed by driver */
};
struct drm_ctx_priv_map {

13
drivers/char/drm/drm_drv.c
View File

@ -200,8 +200,10 @@ int drm_lastclose(struct drm_device * dev)
}
list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) {
drm_rmmap_locked(dev, r_list->map);
r_list = NULL;
if (!(r_list->map->flags & _DRM_DRIVER)) {
drm_rmmap_locked(dev, r_list->map);
r_list = NULL;
}
}
if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
@ -291,10 +293,6 @@ static void drm_cleanup(struct drm_device * dev)
drm_lastclose(dev);
drm_ht_remove(&dev->map_hash);
drm_ctxbitmap_cleanup(dev);
if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) &&
dev->agp && dev->agp->agp_mtrr >= 0) {
int retval;
@ -312,6 +310,9 @@ static void drm_cleanup(struct drm_device * dev)
if (dev->driver->unload)
dev->driver->unload(dev);
drm_ht_remove(&dev->map_hash);
drm_ctxbitmap_cleanup(dev);
drm_put_head(&dev->primary);
if (drm_put_dev(dev))
DRM_ERROR("Cannot unload module\n");

3
drivers/char/drm/i915_dma.c
View File

@ -778,7 +778,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
base = drm_get_resource_start(dev, mmio_bar);
size = drm_get_resource_len(dev, mmio_bar);
ret = drm_addmap(dev, base, size, _DRM_REGISTERS, _DRM_KERNEL,
ret = drm_addmap(dev, base, size, _DRM_REGISTERS,
_DRM_KERNEL | _DRM_DRIVER,
&dev_priv->mmio_map);
return ret;
}