Thomas Hellstrom
parent
05536a6478
commit
0d67356de4
|
|
@ -949,8 +949,9 @@ typedef struct drm_buffer_object{
|
|||
drm_device_t *dev;
|
||||
drm_user_object_t base;
|
||||
atomic_t usage;
|
||||
drm_map_list_t *ttm_maplist;
|
||||
drm_ttm_object_t *ttm_object;
|
||||
drm_ttm_backend_list_t *ttm_region;
|
||||
void __user *user_pages;
|
||||
|
||||
atomic_t mapped;
|
||||
|
||||
|
|
|
|||
|
|
@ -148,7 +148,7 @@ static int drm_move_tt_to_local(drm_buffer_object_t *buf, int lazy)
|
|||
}
|
||||
|
||||
|
||||
void destroy_buffer_object(drm_device_t *dev, drm_buffer_object_t *bo)
|
||||
static void drm_bo_destroy_locked(drm_device_t *dev, drm_buffer_object_t *bo)
|
||||
{
|
||||
|
||||
drm_buffer_manager_t *bm = &dev->bm;
|
||||
|
|
@ -189,6 +189,31 @@ void destroy_buffer_object(drm_device_t *dev, drm_buffer_object_t *bo)
|
|||
drm_free(bo, sizeof(*bo), DRM_MEM_BUFOBJ);
|
||||
}
|
||||
|
||||
|
||||
void drm_bo_usage_deref_locked(drm_device_t *dev, drm_buffer_object_t *bo)
|
||||
{
|
||||
if (atomic_dec_and_test(&bo->usage)) {
|
||||
drm_bo_destroy_locked(dev, bo);
|
||||
}
|
||||
}
|
||||
|
||||
void drm_bo_usage_deref_unlocked(drm_device_t *dev, drm_buffer_object_t *bo)
|
||||
{
|
||||
if (atomic_dec_and_test(&bo->usage)) {
|
||||
mutex_lock(&dev->struct_mutex);
|
||||
if (atomic_read(&bo->usage) == 0)
|
||||
drm_bo_destroy_locked(dev, bo);
|
||||
mutex_unlock(&dev->struct_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
static void drm_bo_base_deref_locked(drm_file_t *priv, drm_user_object_t *uo)
|
||||
{
|
||||
drm_bo_usage_deref_locked(priv->head->dev,
|
||||
drm_user_object_entry(uo, drm_buffer_object_t, base));
|
||||
}
|
||||
|
||||
|
||||
static int drm_bo_new_flags(uint32_t flags, uint32_t new_mask, uint32_t hint,
|
||||
int init, uint32_t *n_flags)
|
||||
{
|
||||
|
|
@ -399,6 +424,9 @@ static int drm_bo_busy(drm_device_t *dev, drm_buffer_object_t *bo)
|
|||
|
||||
/*
|
||||
* Wait for buffer idle and register that we've mapped the buffer.
|
||||
* Mapping is registered as a drm_ref_object with type _DRM_REF_TYPE1,
|
||||
* so that if the client dies, the mapping is automatically
|
||||
* unregistered.
|
||||
*/
|
||||
|
||||
|
||||
|
|
@ -421,13 +449,15 @@ static int drm_buffer_object_map(drm_file_t *priv, uint32_t handle, int wait)
|
|||
if ((atomic_read(&bo->mapped) == 0) &&
|
||||
drm_bo_busy(dev, bo)) {
|
||||
mutex_unlock(&bo->mutex);
|
||||
return -EBUSY;
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
} else {
|
||||
ret = drm_bo_wait(dev, bo, 0);
|
||||
if (ret) {
|
||||
mutex_unlock(&bo->mutex);
|
||||
return -EBUSY;
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
mutex_lock(&dev->struct_mutex);
|
||||
|
|
@ -438,11 +468,132 @@ static int drm_buffer_object_map(drm_file_t *priv, uint32_t handle, int wait)
|
|||
}
|
||||
mutex_unlock(&bo->mutex);
|
||||
|
||||
out:
|
||||
drm_bo_usage_deref_unlocked(dev,bo);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
static int drm_buffer_object_unmap(drm_file_t *priv, uint32_t handle)
|
||||
{
|
||||
drm_device_t *dev = priv->head->dev;
|
||||
drm_buffer_object_t *bo;
|
||||
drm_ref_object_t *ro;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&dev->struct_mutex);
|
||||
|
||||
bo = drm_lookup_buffer_object(priv, handle, 1);
|
||||
if (!bo) {
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
ro = drm_lookup_ref_object(priv, &bo->base, _DRM_REF_TYPE1);
|
||||
if (!ro) {
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
drm_remove_ref_object(priv, ro);
|
||||
drm_bo_usage_deref_locked(dev, bo);
|
||||
out:
|
||||
mutex_unlock(&dev->struct_mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Call struct-sem locked.
|
||||
*/
|
||||
|
||||
static void drm_buffer_user_object_unmap(drm_file_t *priv, drm_user_object_t *uo)
|
||||
{
|
||||
drm_device_t *dev = priv->head->dev;
|
||||
drm_buffer_object_t *bo = drm_user_object_entry(uo, drm_buffer_object_t, base);
|
||||
|
||||
if (atomic_dec_and_test(&bo->mapped)) {
|
||||
mutex_unlock(&dev->struct_mutex);
|
||||
mutex_lock(&bo->mutex);
|
||||
if (atomic_read(&bo->mapped) == 0) {
|
||||
DRM_WAKEUP(&bo->validate_queue);
|
||||
}
|
||||
mutex_unlock(&bo->mutex);
|
||||
mutex_lock(&dev->struct_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
static int drm_buffer_object_validate(drm_device_t *dev, drm_buffer_object_t *bo)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int drm_buffer_object_create(drm_file_t *priv,
|
||||
int size,
|
||||
drm_bo_type_t type,
|
||||
uint32_t ttm_handle,
|
||||
uint32_t mask,
|
||||
uint32_t hint,
|
||||
void __user *user_pages,
|
||||
drm_buffer_object_t **buf_obj)
|
||||
{
|
||||
drm_device_t *dev = priv->head->dev;
|
||||
drm_buffer_object_t *bo;
|
||||
int ret = 0;
|
||||
uint32_t ttm_flags = 0;
|
||||
|
||||
bo = drm_calloc(1, sizeof(*bo), DRM_MEM_BUFOBJ);
|
||||
|
||||
if (!bo)
|
||||
return -ENOMEM;
|
||||
|
||||
mutex_init(&bo->mutex);
|
||||
mutex_lock(&bo->mutex);
|
||||
|
||||
atomic_set(&bo->usage, 1);
|
||||
atomic_set(&bo->mapped, 0);
|
||||
DRM_INIT_WAITQUEUE(&bo->validate_queue);
|
||||
INIT_LIST_HEAD(&bo->head);
|
||||
INIT_LIST_HEAD(&bo->ddestroy);
|
||||
bo->dev = dev;
|
||||
|
||||
switch(type) {
|
||||
case drm_bo_type_dc:
|
||||
ret = drm_ttm_object_create(dev, size, ttm_flags, &bo->ttm_object);
|
||||
if (ret)
|
||||
goto out_err;
|
||||
break;
|
||||
case drm_bo_type_ttm:
|
||||
bo->ttm_object = drm_lookup_ttm_object(priv, ttm_handle, 1);
|
||||
if (ret)
|
||||
goto out_err;
|
||||
break;
|
||||
case drm_bo_type_user:
|
||||
bo->user_pages = user_pages;
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
bo->mask = mask;
|
||||
bo->mask_hint = hint;
|
||||
|
||||
ret = drm_buffer_object_validate(dev, bo);
|
||||
if (ret)
|
||||
goto out_err;
|
||||
|
||||
mutex_unlock(&bo->mutex);
|
||||
*buf_obj = bo;
|
||||
return 0;
|
||||
|
||||
out_err:
|
||||
mutex_unlock(&bo->mutex);
|
||||
drm_free(bo, sizeof(*bo), DRM_MEM_BUFOBJ);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int drm_bo_ioctl(DRM_IOCTL_ARGS)
|
||||
{
|
||||
|
|
@ -459,6 +610,9 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS)
|
|||
rep.ret = 0;
|
||||
rep.handled = 0;
|
||||
switch (req->op) {
|
||||
case drm_bo_unmap:
|
||||
rep.ret = drm_buffer_object_unmap(priv, req->handle);
|
||||
break;
|
||||
case drm_bo_map:
|
||||
rep.ret = drm_buffer_object_map(priv, req->handle,
|
||||
!(req->hint &
|
||||
|
|
|
|||
|
|
@ -752,7 +752,6 @@ int drm_user_create_region(drm_device_t * dev, unsigned long start, int len,
|
|||
/*
|
||||
* dev->struct_mutex locked.
|
||||
*/
|
||||
|
||||
static void drm_ttm_object_remove(drm_device_t *dev, drm_ttm_object_t *object)
|
||||
{
|
||||
drm_map_list_t *list = &object->map_list;
|
||||
|
|
@ -777,17 +776,24 @@ static void drm_ttm_object_remove(drm_device_t *dev, drm_ttm_object_t *object)
|
|||
drm_free(object, sizeof(*object), DRM_MEM_TTM);
|
||||
}
|
||||
|
||||
|
||||
void drm_ttm_object_deref_locked(drm_device_t *dev, drm_ttm_object_t *to)
|
||||
{
|
||||
if (atomic_dec_and_test(&to->usage)) {
|
||||
drm_ttm_object_remove(dev, to);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* dev->struct_mutex locked.
|
||||
*/
|
||||
static void drm_ttm_user_object_remove(drm_file_t *priv, drm_user_object_t *base)
|
||||
static void drm_ttm_user_deref_locked(drm_file_t *priv, drm_user_object_t *base)
|
||||
{
|
||||
drm_ttm_object_t *object;
|
||||
drm_device_t *dev = priv->head->dev;
|
||||
|
||||
object = drm_user_object_entry(base, drm_ttm_object_t, base);
|
||||
if (atomic_dec_and_test(&object->usage))
|
||||
drm_ttm_object_remove(dev, object);
|
||||
DRM_ERROR("User deref ttm\n");
|
||||
drm_ttm_object_deref_locked(priv->head->dev,
|
||||
drm_user_object_entry(base, drm_ttm_object_t,
|
||||
base));
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -840,16 +846,33 @@ int drm_ttm_object_create(drm_device_t *dev, unsigned long size,
|
|||
}
|
||||
|
||||
list->user_token = list->hash.key;
|
||||
object->base.remove = drm_ttm_user_object_remove;
|
||||
object->base.type = drm_ttm_type;
|
||||
object->base.ref_struct_locked = NULL;
|
||||
object->base.unref = NULL;
|
||||
|
||||
atomic_set(&object->usage, 1);
|
||||
*ttm_object = object;
|
||||
return 0;
|
||||
}
|
||||
|
||||
drm_ttm_object_t *drm_lookup_ttm_object(drm_file_t *priv, uint32_t handle,
|
||||
int check_owner)
|
||||
{
|
||||
drm_user_object_t *uo;
|
||||
drm_ttm_object_t *to;
|
||||
|
||||
uo = drm_lookup_user_object(priv, handle);
|
||||
|
||||
if (!uo || (uo->type != drm_ttm_type))
|
||||
return NULL;
|
||||
|
||||
if (check_owner && priv != uo->owner) {
|
||||
if (!drm_lookup_ref_object(priv, uo, _DRM_REF_USE))
|
||||
return NULL;
|
||||
}
|
||||
|
||||
to = drm_user_object_entry(uo, drm_ttm_object_t, base);
|
||||
atomic_inc(&to->usage);
|
||||
return to;
|
||||
}
|
||||
|
||||
|
||||
int drm_ttm_ioctl(DRM_IOCTL_ARGS)
|
||||
{
|
||||
|
|
@ -878,6 +901,10 @@ int drm_ttm_ioctl(DRM_IOCTL_ARGS)
|
|||
mutex_unlock(&dev->struct_mutex);
|
||||
return ret;
|
||||
}
|
||||
entry->base.remove = drm_ttm_user_deref_locked;
|
||||
entry->base.type = drm_ttm_type;
|
||||
entry->base.ref_struct_locked = NULL;
|
||||
entry->base.unref = NULL;
|
||||
atomic_inc(&entry->usage);
|
||||
break;
|
||||
case drm_ttm_reference:
|
||||
|
|
@ -885,8 +912,7 @@ int drm_ttm_ioctl(DRM_IOCTL_ARGS)
|
|||
if (ret)
|
||||
return ret;
|
||||
mutex_lock(&dev->struct_mutex);
|
||||
uo = drm_lookup_user_object(priv, arg.handle);
|
||||
entry = drm_user_object_entry(uo, drm_ttm_object_t, base);
|
||||
entry = drm_lookup_ttm_object(priv, arg.handle , 0);
|
||||
break;
|
||||
case drm_ttm_unreference:
|
||||
return drm_user_object_unref(priv, arg.handle, drm_ttm_type);
|
||||
|
|
@ -904,7 +930,7 @@ int drm_ttm_ioctl(DRM_IOCTL_ARGS)
|
|||
arg.handle = entry->base.hash.key;
|
||||
arg.user_token = entry->map_list.user_token;
|
||||
arg.size = drm_u64(entry->map_list.map->size);
|
||||
atomic_dec(&entry->usage);
|
||||
drm_ttm_object_deref_locked(dev, entry);
|
||||
mutex_unlock(&dev->struct_mutex);
|
||||
|
||||
DRM_COPY_TO_USER_IOCTL((void __user *)data, arg, sizeof(arg));
|
||||
|
|
|
|||
|
|
@ -108,6 +108,13 @@ typedef struct drm_ttm_object {
|
|||
drm_map_list_t map_list;
|
||||
} drm_ttm_object_t;
|
||||
|
||||
extern int drm_ttm_object_create(struct drm_device *dev, unsigned long size,
|
||||
uint32_t flags, drm_ttm_object_t **ttm_object);
|
||||
extern void drm_ttm_object_deref_locked(struct drm_device *dev, drm_ttm_object_t *to);
|
||||
extern drm_ttm_object_t *drm_lookup_ttm_object(drm_file_t *priv, uint32_t handle,
|
||||
int check_owner);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -695,18 +695,19 @@ typedef struct drm_ttm_arg {
|
|||
#define DRM_BO_HINT_AVOID_LOCAL 0x00000002
|
||||
#define DRM_BO_HINT_DONT_BLOCK 0x00000004
|
||||
|
||||
typedef enum {
|
||||
drm_bo_type_ttm,
|
||||
drm_bo_type_dc,
|
||||
drm_bo_type_user
|
||||
}drm_bo_type_t;
|
||||
|
||||
|
||||
typedef struct drm_bo_arg_request {
|
||||
unsigned handle; /* User space handle */
|
||||
unsigned mask;
|
||||
unsigned hint;
|
||||
drm_u64_t size;
|
||||
|
||||
enum {
|
||||
drm_bo_type_ttm,
|
||||
drm_bo_type_dc,
|
||||
drm_bo_type_user
|
||||
}type;
|
||||
drm_bo_type_t type;
|
||||
unsigned arg_handle;
|
||||
drm_u64_t user_pointer;
|
||||
drm_u64_t next;
|
||||
|
|
@ -714,6 +715,7 @@ typedef struct drm_bo_arg_request {
|
|||
drm_bo_create,
|
||||
drm_bo_validate,
|
||||
drm_bo_map,
|
||||
drm_bo_unmap,
|
||||
drm_bo_fence,
|
||||
drm_bo_destroy,
|
||||
drm_bo_reference,
|
||||
|
|
|
|||
Loading…
Reference in New Issue