diff options
Diffstat (limited to 'drivers/char/drm/drm_agpsupport.c')
| -rw-r--r-- | drivers/char/drm/drm_agpsupport.c | 143 |
1 files changed, 81 insertions, 62 deletions
diff --git a/drivers/char/drm/drm_agpsupport.c b/drivers/char/drm/drm_agpsupport.c index 8d94c0b5fa44f..8c215adcb4b2b 100644 --- a/drivers/char/drm/drm_agpsupport.c +++ b/drivers/char/drm/drm_agpsupport.c @@ -37,7 +37,7 @@ #if __OS_HAS_AGP /** - * AGP information ioctl. + * Get AGP information. * * \param inode device inode. * \param filp file pointer. @@ -48,51 +48,56 @@ * 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(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +int drm_agp_info(drm_device_t *dev, drm_agp_info_t *info) { - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->head->dev; DRM_AGP_KERN *kern; - drm_agp_info_t info; if (!dev->agp || !dev->agp->acquired) return -EINVAL; kern = &dev->agp->agp_info; - info.agp_version_major = kern->version.major; - info.agp_version_minor = kern->version.minor; - info.mode = kern->mode; - info.aperture_base = kern->aper_base; - info.aperture_size = kern->aper_size * 1024 * 1024; - info.memory_allowed = kern->max_memory << PAGE_SHIFT; - info.memory_used = kern->current_memory << PAGE_SHIFT; - info.id_vendor = kern->device->vendor; - info.id_device = kern->device->device; - - if (copy_to_user((drm_agp_info_t __user *)arg, &info, sizeof(info))) + info->agp_version_major = kern->version.major; + info->agp_version_minor = kern->version.minor; + info->mode = kern->mode; + info->aperture_base = kern->aper_base; + info->aperture_size = kern->aper_size * 1024 * 1024; + info->memory_allowed = kern->max_memory << PAGE_SHIFT; + info->memory_used = kern->current_memory << PAGE_SHIFT; + info->id_vendor = kern->device->vendor; + info->id_device = kern->device->device; + + return 0; +} +EXPORT_SYMBOL(drm_agp_info); + +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; + 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))) return -EFAULT; return 0; } /** - * Acquire the AGP device (ioctl). + * Acquire the AGP device. * - * \param inode device inode. - * \param filp file pointer. - * \param cmd command. - * \param arg user argument. + * \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 - * agp_acquire(). + * \c agp_backend_acquire. */ -int drm_agp_acquire(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +int drm_agp_acquire(drm_device_t *dev) { - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->head->dev; - if (!dev->agp) return -ENODEV; if (dev->agp->acquired) @@ -102,9 +107,10 @@ int drm_agp_acquire(struct inode *inode, struct file *filp, dev->agp->acquired = 1; return 0; } +EXPORT_SYMBOL(drm_agp_acquire); /** - * Release the AGP device (ioctl). + * Acquire the AGP device (ioctl). * * \param inode device inode. * \param filp file pointer. @@ -112,63 +118,80 @@ int drm_agp_acquire(struct inode *inode, struct file *filp, * \param arg user argument. * \return zero on success or a negative number on failure. * - * Verifies the AGP device has been acquired and calls agp_backend_release(). + * Verifies the AGP device hasn't been acquired before and calls + * \c agp_backend_acquire. */ -int drm_agp_release(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +int drm_agp_acquire_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_file_t *priv = filp->private_data; + + return drm_agp_acquire( (drm_device_t *) priv->head->dev ); +} +/** + * Release the AGP device. + * + * \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) +{ if (!dev->agp || !dev->agp->acquired) return -EINVAL; agp_backend_release(dev->agp->bridge); dev->agp->acquired = 0; return 0; - } +EXPORT_SYMBOL(drm_agp_release); -/** - * Release the AGP device. - * - * Calls agp_backend_release(). - */ -void drm_agp_do_release(drm_device_t *dev) +int drm_agp_release_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) { - agp_backend_release(dev->agp->bridge); + drm_file_t *priv = filp->private_data; + drm_device_t *dev = priv->head->dev; + + return drm_agp_release(dev); } /** * Enable the AGP bus. * - * \param inode device inode. - * \param filp file pointer. - * \param cmd command. - * \param arg pointer to a drm_agp_mode structure. + * \param dev DRM device that has previously acquired AGP. + * \param mode Requested AGP mode. * \return zero on success or a negative number on failure. * * Verifies the AGP device has been acquired but not enabled, and calls - * agp_enable(). + * \c agp_enable. */ -int drm_agp_enable(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +int drm_agp_enable(drm_device_t *dev, drm_agp_mode_t mode) { - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->head->dev; - drm_agp_mode_t mode; - if (!dev->agp || !dev->agp->acquired) return -EINVAL; - if (copy_from_user(&mode, (drm_agp_mode_t __user *)arg, sizeof(mode))) - return -EFAULT; - dev->agp->mode = mode.mode; agp_enable(dev->agp->bridge, mode.mode); dev->agp->base = dev->agp->agp_info.aper_base; dev->agp->enabled = 1; return 0; } +EXPORT_SYMBOL(drm_agp_enable); + +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; + + + if (copy_from_user(&mode, (drm_agp_mode_t __user *) arg, sizeof(mode))) + return -EFAULT; + + return drm_agp_enable(dev, mode); +} /** * Allocate AGP memory. @@ -206,7 +229,7 @@ int drm_agp_alloc(struct inode *inode, struct file *filp, pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE; type = (u32) request.type; - if (!(memory = drm_alloc_agp(dev->agp->bridge, pages, type))) { + if (!(memory = drm_alloc_agp(dev, pages, type))) { drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return -ENOMEM; } @@ -403,13 +426,8 @@ drm_agp_head_t *drm_agp_init(drm_device_t *dev) return NULL; } head->memory = NULL; -#if LINUX_VERSION_CODE <= 0x020408 - head->cant_use_aperture = 0; - head->page_mask = ~(0xfff); -#else head->cant_use_aperture = head->agp_info.cant_use_aperture; head->page_mask = head->agp_info.page_mask; -#endif return head; } @@ -436,6 +454,7 @@ int drm_agp_bind_memory(DRM_AGP_MEM *handle, off_t start) return -EINVAL; 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) |