/**
- * \file drm_agpsupport.h
+ * \file drm_agpsupport.c
* DRM support for AGP/GART backend
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
* Verifies the AGP device has been initialized and acquired and fills in the
* drm_agp_info structure with the information in drm_agp_head::agp_info.
*/
-int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info)
+int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info)
{
DRM_AGP_KERN *kern;
int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_agp_info_t info;
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
+ struct drm_agp_info info;
int err;
err = drm_agp_info(dev, &info);
if (err)
return err;
- if (copy_to_user((drm_agp_info_t __user *) arg, &info, sizeof(info)))
+ if (copy_to_user((struct drm_agp_info __user *) arg, &info, sizeof(info)))
return -EFAULT;
return 0;
}
/**
* Acquire the AGP device.
*
- * \param dev DRM device that is to acquire AGP
+ * \param dev DRM device that is to acquire AGP.
* \return zero on success or a negative number on failure.
*
* Verifies the AGP device hasn't been acquired before and calls
* \c agp_backend_acquire.
*/
-int drm_agp_acquire(drm_device_t * dev)
+int drm_agp_acquire(struct drm_device * dev)
{
if (!dev->agp)
return -ENODEV;
int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
- drm_file_t *priv = filp->private_data;
+ struct drm_file *priv = filp->private_data;
- return drm_agp_acquire((drm_device_t *) priv->head->dev);
+ return drm_agp_acquire((struct drm_device *) priv->head->dev);
}
/**
* Release the AGP device.
*
- * \param dev DRM device that is to release AGP
+ * \param dev DRM device that is to release AGP.
* \return zero on success or a negative number on failure.
*
* Verifies the AGP device has been acquired and calls \c agp_backend_release.
*/
-int drm_agp_release(drm_device_t * dev)
+int drm_agp_release(struct drm_device * dev)
{
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
dev->agp->acquired = 0;
return 0;
}
-
EXPORT_SYMBOL(drm_agp_release);
int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
return drm_agp_release(dev);
}
* Verifies the AGP device has been acquired but not enabled, and calls
* \c agp_enable.
*/
-int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode)
+int drm_agp_enable(struct drm_device * dev, struct drm_agp_mode mode)
{
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_agp_mode_t mode;
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
+ struct drm_agp_mode mode;
- if (copy_from_user(&mode, (drm_agp_mode_t __user *) arg, sizeof(mode)))
+ if (copy_from_user(&mode, (struct drm_agp_mode __user *) arg, sizeof(mode)))
return -EFAULT;
return drm_agp_enable(dev, mode);
* Verifies the AGP device is present and has been acquired, allocates the
* memory via alloc_agp() and creates a drm_agp_mem entry for it.
*/
-int drm_agp_alloc(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_agp_buffer_t request;
- drm_agp_mem_t *entry;
+ struct drm_agp_mem *entry;
DRM_AGP_MEM *memory;
unsigned long pages;
u32 type;
- drm_agp_buffer_t __user *argp = (void __user *)arg;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
- if (copy_from_user(&request, argp, sizeof(request)))
- return -EFAULT;
if (!(entry = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS)))
return -ENOMEM;
memset(entry, 0, sizeof(*entry));
- pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
- type = (u32) request.type;
-
+ pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE;
+ type = (u32) request->type;
if (!(memory = drm_alloc_agp(dev, pages, type))) {
drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
return -ENOMEM;
entry->memory = memory;
entry->bound = 0;
entry->pages = pages;
- entry->prev = NULL;
- entry->next = dev->agp->memory;
- if (dev->agp->memory)
- dev->agp->memory->prev = entry;
- dev->agp->memory = entry;
+ list_add(&entry->head, &dev->agp->memory);
- request.handle = entry->handle;
- request.physical = memory->physical;
+ request->handle = entry->handle;
+ request->physical = memory->physical;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_agp_alloc);
+
+int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
+ struct drm_agp_buffer request;
+ struct drm_agp_buffer __user *argp = (void __user *)arg;
+ int err;
+
+ if (copy_from_user(&request, argp, sizeof(request)))
+ return -EFAULT;
+
+ err = drm_agp_alloc(dev, &request);
+ if (err)
+ return err;
if (copy_to_user(argp, &request, sizeof(request))) {
- dev->agp->memory = entry->next;
- dev->agp->memory->prev = NULL;
- drm_free_agp(memory, pages);
+ struct drm_agp_mem *entry;
+ list_for_each_entry(entry, &dev->agp->memory, head) {
+ if (entry->handle == request.handle)
+ break;
+ }
+ list_del(&entry->head);
+ drm_free_agp(entry->memory, entry->pages);
drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
return -EFAULT;
}
+
return 0;
}
*
* Walks through drm_agp_head::memory until finding a matching handle.
*/
-static drm_agp_mem_t *drm_agp_lookup_entry(drm_device_t * dev,
+static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device * dev,
unsigned long handle)
{
- drm_agp_mem_t *entry;
+ struct drm_agp_mem *entry;
- for (entry = dev->agp->memory; entry; entry = entry->next) {
+ list_for_each_entry(entry, &dev->agp->memory, head) {
if (entry->handle == handle)
return entry;
}
* Verifies the AGP device is present and acquired, looks-up the AGP memory
* entry and passes it to the unbind_agp() function.
*/
-int drm_agp_unbind(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_agp_binding_t request;
- drm_agp_mem_t *entry;
+ struct drm_agp_mem *entry;
int ret;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
- if (copy_from_user
- (&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
- return -EFAULT;
- if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
return -EINVAL;
if (!entry->bound)
return -EINVAL;
entry->bound = 0;
return ret;
}
+EXPORT_SYMBOL(drm_agp_unbind);
+
+int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
+ struct drm_agp_binding request;
+
+ if (copy_from_user
+ (&request, (struct drm_agp_binding __user *) arg, sizeof(request)))
+ return -EFAULT;
+
+ return drm_agp_unbind(dev, &request);
+}
/**
* Bind AGP memory into the GATT (ioctl)
* is currently bound into the GATT. Looks-up the AGP memory entry and passes
* it to bind_agp() function.
*/
-int drm_agp_bind(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_agp_binding_t request;
- drm_agp_mem_t *entry;
+ struct drm_agp_mem *entry;
int retcode;
int page;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
- if (copy_from_user
- (&request, (drm_agp_binding_t __user *) arg, sizeof(request)))
- return -EFAULT;
- if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
return -EINVAL;
if (entry->bound)
return -EINVAL;
- page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
+ page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE;
if ((retcode = drm_bind_agp(entry->memory, page)))
return retcode;
entry->bound = dev->agp->base + (page << PAGE_SHIFT);
dev->agp->base, entry->bound);
return 0;
}
+EXPORT_SYMBOL(drm_agp_bind);
+
+int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
+ struct drm_agp_binding request;
+
+ if (copy_from_user
+ (&request, (struct drm_agp_binding __user *) arg, sizeof(request)))
+ return -EFAULT;
+
+ return drm_agp_bind(dev, &request);
+}
/**
* Free AGP memory (ioctl).
* unbind_agp(). Frees it via free_agp() as well as the entry itself
* and unlinks from the doubly linked list it's inserted in.
*/
-int drm_agp_free(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->head->dev;
- drm_agp_buffer_t request;
- drm_agp_mem_t *entry;
+ struct drm_agp_mem *entry;
if (!dev->agp || !dev->agp->acquired)
return -EINVAL;
- if (copy_from_user
- (&request, (drm_agp_buffer_t __user *) arg, sizeof(request)))
- return -EFAULT;
- if (!(entry = drm_agp_lookup_entry(dev, request.handle)))
+ if (!(entry = drm_agp_lookup_entry(dev, request->handle)))
return -EINVAL;
if (entry->bound)
drm_unbind_agp(entry->memory);
- if (entry->prev)
- entry->prev->next = entry->next;
- else
- dev->agp->memory = entry->next;
-
- if (entry->next)
- entry->next->prev = entry->prev;
+ list_del(&entry->head);
drm_free_agp(entry->memory, entry->pages);
drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
return 0;
}
+EXPORT_SYMBOL(drm_agp_free);
+
+int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev = priv->head->dev;
+ struct drm_agp_buffer request;
+
+ if (copy_from_user
+ (&request, (struct drm_agp_buffer __user *) arg, sizeof(request)))
+ return -EFAULT;
+
+ return drm_agp_free(dev, &request);
+}
/**
* Initialize the AGP resources.
*
* \return pointer to a drm_agp_head structure.
*
+ * Gets the drm_agp_t structure which is made available by the agpgart module
+ * via the inter_module_* functions. Creates and initializes a drm_agp_head
+ * structure.
*/
-drm_agp_head_t *drm_agp_init(drm_device_t * dev)
+struct drm_agp_head *drm_agp_init(struct drm_device *dev)
{
- drm_agp_head_t *head = NULL;
+ struct drm_agp_head *head = NULL;
if (!(head = drm_alloc(sizeof(*head), DRM_MEM_AGPLISTS)))
return NULL;
drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS);
return NULL;
}
- head->memory = NULL;
+ INIT_LIST_HEAD(&head->memory);
head->cant_use_aperture = head->agp_info.cant_use_aperture;
head->page_mask = head->agp_info.page_mask;
return agp_bind_memory(handle, start);
}
-EXPORT_SYMBOL(drm_agp_bind_memory);
-
/** Calls agp_unbind_memory() */
int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
{