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helping
2D operations.
Ups radeon to version 1.12.0, Vladimir, you might want to add any extra
pciids...
Approved-by: Dave Airlie <airlied@linux.ie>
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weren't Lindent's because their comments didn't convert very well. A
bunch of other minor clean up with no code implact included.
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dev_priv live always, and add AGP detection in kernel patch:
radeon-pre-2.patch From: Jon Smirl
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GL_EXT_blend_func_separate and GL_EXT_blend_equation_separate on r200
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allows the mesa drivers to use a single definition of the DRM
sarea/IOCTLS located in the drm driver directory. Adjustments were made
to the 2D drivers to not include these changes. Changes to the mesa
copy of DRM were copied to the DRI copy. XFree86 bug: Reported by:
Submitted by: Reviewed by: Obtained from:
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the 2D driver initializes MC_FB_LOCATION and related registers sanely
the DRM deduces the layout from these registers
clients use the new SETPARAM ioctl to tell the DRM where they think the
framebuffer is located in the card's address space
the DRM uses all this information to check client state and fix it up if
necessary
This is a prerequisite for things like direct rendering with IGP chips and
video capturing.
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appropriate
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added.
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pageflipping after a mode switch
take current page into account in AdjustFrame(); writing the CRTC offset
via the CP was probably a bad idea as this can happen asynchronously,
reverted
take frame offset into account when flipping pages
handle CRTC2 as well for pageflipping (untested)
preserve GEN_INT_CNTL on mode switches to prevent interrupts from getting
disabled
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ioctl. The DRM reads them from memory addresses the chip writes to on
updates. Fall back to reading the registers directly with an old DRM.
(Tim Smith, cleanups by myself)
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* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#include "drmP.h"
int drm_add_user_object(drm_file_t * priv, drm_user_object_t * item,
int shareable)
{
drm_device_t *dev = priv->head->dev;
int ret;
atomic_set(&item->refcount, 1);
item->shareable = shareable;
item->owner = priv;
ret = drm_ht_just_insert_please(&dev->object_hash, &item->hash,
(unsigned long)item, 32, 0, 0);
if (ret)
return ret;
list_add_tail(&item->list, &priv->user_objects);
return 0;
}
drm_user_object_t *drm_lookup_user_object(drm_file_t * priv, uint32_t key)
{
drm_device_t *dev = priv->head->dev;
drm_hash_item_t *hash;
int ret;
drm_user_object_t *item;
ret = drm_ht_find_item(&dev->object_hash, key, &hash);
if (ret) {
return NULL;
}
item = drm_hash_entry(hash, drm_user_object_t, hash);
if (priv != item->owner) {
drm_open_hash_t *ht = &priv->refd_object_hash[_DRM_REF_USE];
ret = drm_ht_find_item(ht, (unsigned long)item, &hash);
if (ret) {
DRM_ERROR("Object not registered for usage\n");
return NULL;
}
}
return item;
}
static void drm_deref_user_object(drm_file_t * priv, drm_user_object_t * item)
{
drm_device_t *dev = priv->head->dev;
int ret;
if (atomic_dec_and_test(&item->refcount)) {
ret = drm_ht_remove_item(&dev->object_hash, &item->hash);
BUG_ON(ret);
list_del_init(&item->list);
item->remove(priv, item);
}
}
int drm_remove_user_object(drm_file_t * priv, drm_user_object_t * item)
{
if (item->owner != priv) {
DRM_ERROR("Cannot destroy object not owned by you.\n");
return -EINVAL;
}
item->owner = 0;
item->shareable = 0;
list_del_init(&item->list);
drm_deref_user_object(priv, item);
return 0;
}
static int drm_object_ref_action(drm_file_t * priv, drm_user_object_t * ro,
drm_ref_t action)
{
int ret = 0;
switch (action) {
case _DRM_REF_USE:
atomic_inc(&ro->refcount);
break;
default:
if (!ro->ref_struct_locked) {
break;
} else {
ro->ref_struct_locked(priv, ro, action);
}
}
return ret;
}
int drm_add_ref_object(drm_file_t * priv, drm_user_object_t * referenced_object,
drm_ref_t ref_action)
{
int ret = 0;
drm_ref_object_t *item;
drm_open_hash_t *ht = &priv->refd_object_hash[ref_action];
if (!referenced_object->shareable && priv != referenced_object->owner) {
DRM_ERROR("Not allowed to reference this object\n");
return -EINVAL;
}
/*
* If this is not a usage reference, Check that usage has been registered
* first. Otherwise strange things may happen on destruction.
*/
if ((ref_action != _DRM_REF_USE) && priv != referenced_object->owner) {
item =
drm_lookup_ref_object(priv, referenced_object,
_DRM_REF_USE);
if (!item) {
DRM_ERROR
("Object not registered for usage by this client\n");
return -EINVAL;
}
}
if (NULL !=
(item =
drm_lookup_ref_object(priv, referenced_object, ref_action))) {
atomic_inc(&item->refcount);
return drm_object_ref_action(priv, referenced_object,
ref_action);
}
item = drm_ctl_calloc(1, sizeof(*item), DRM_MEM_OBJECTS);
if (item == NULL) {
DRM_ERROR("Could not allocate reference object\n");
return -ENOMEM;
}
atomic_set(&item->refcount, 1);
item->hash.key = (unsigned long)referenced_object;
ret = drm_ht_insert_item(ht, &item->hash);
item->unref_action = ref_action;
if (ret)
goto out;
list_add(&item->list, &priv->refd_objects);
ret = drm_object_ref_action(priv, referenced_object, ref_action);
out:
return ret;
}
drm_ref_object_t *drm_lookup_ref_object(drm_file_t * priv,
drm_user_object_t * referenced_object,
drm_ref_t ref_action)
{
drm_hash_item_t *hash;
int ret;
ret = drm_ht_find_item(&priv->refd_object_hash[ref_action],
(unsigned long)referenced_object, &hash);
if (ret)
return NULL;
return drm_hash_entry(hash, drm_ref_object_t, hash);
}
static void drm_remove_other_references(drm_file_t * priv,
drm_user_object_t * ro)
{
int i;
drm_open_hash_t *ht;
drm_hash_item_t *hash;
drm_ref_object_t *item;
for (i = _DRM_REF_USE + 1; i < _DRM_NO_REF_TYPES; ++i) {
ht = &priv->refd_object_hash[i];
while (!drm_ht_find_item(ht, (unsigned long)ro, &hash)) {
item = drm_hash_entry(hash, drm_ref_object_t, hash);
drm_remove_ref_object(priv, item);
}
}
}
void drm_remove_ref_object(drm_file_t * priv, drm_ref_object_t * item)
{
int ret;
drm_user_object_t *user_object = (drm_user_object_t *) item->hash.key;
drm_open_hash_t *ht = &priv->refd_object_hash[item->unref_action];
drm_ref_t unref_action;
unref_action = item->unref_action;
if (atomic_dec_and_test(&item->refcount)) {
ret = drm_ht_remove_item(ht, &item->hash);
BUG_ON(ret);
list_del_init(&item->list);
if (unref_action == _DRM_REF_USE)
drm_remove_other_references(priv, user_object);
drm_ctl_free(item, sizeof(*item), DRM_MEM_OBJECTS);
}
switch (unref_action) {
case _DRM_REF_USE:
drm_deref_user_object(priv, user_object);
break;
default:
BUG_ON(!user_object->unref);
user_object->unref(priv, user_object, unref_action);
break;
}
}
int drm_user_object_ref(drm_file_t * priv, uint32_t user_token,
drm_object_type_t type, drm_user_object_t ** object)
{
drm_device_t *dev = priv->head->dev;
drm_user_object_t *uo;
drm_hash_item_t *hash;
int ret;
mutex_lock(&dev->struct_mutex);
ret = drm_ht_find_item(&dev->object_hash, user_token, &hash);
if (ret) {
DRM_ERROR("Could not find user object to reference.\n");
goto out_err;
}
uo = drm_hash_entry(hash, drm_user_object_t, hash);
if (uo->type != type) {
ret = -EINVAL;
goto out_err;
}
ret = drm_add_ref_object(priv, uo, _DRM_REF_USE);
if (ret)
goto out_err;
mutex_unlock(&dev->struct_mutex);
*object = uo;
return 0;
out_err:
mutex_unlock(&dev->struct_mutex);
return ret;
}
int drm_user_object_unref(drm_file_t * priv, uint32_t user_token,
drm_object_type_t type)
{
drm_device_t *dev = priv->head->dev;
drm_user_object_t *uo;
drm_ref_object_t *ro;
int ret;
mutex_lock(&dev->struct_mutex);
uo = drm_lookup_user_object(priv, user_token);
if (!uo || (uo->type != type)) {
ret = -EINVAL;
goto out_err;
}
ro = drm_lookup_ref_object(priv, uo, _DRM_REF_USE);
if (!ro) {
ret = -EINVAL;
goto out_err;
}
drm_remove_ref_object(priv, ro);
mutex_unlock(&dev->struct_mutex);
return 0;
out_err:
mutex_unlock(&dev->struct_mutex);
return ret;
}
