diff options
Diffstat (limited to 'drivers/gpu/drm/drm_agpsupport.c')
| -rw-r--r-- | drivers/gpu/drm/drm_agpsupport.c | 56 |
1 files changed, 46 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c index 0cb2ba50af5..dde205cef38 100644 --- a/drivers/gpu/drm/drm_agpsupport.c +++ b/drivers/gpu/drm/drm_agpsupport.c @@ -31,7 +31,7 @@ * OTHER DEALINGS IN THE SOFTWARE. */ -#include "drmP.h" +#include <drm/drmP.h> #include <linux/module.h> #include <linux/slab.h> @@ -53,7 +53,7 @@ */ int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info) { - DRM_AGP_KERN *kern; + struct agp_kern_info *kern; if (!dev->agp || !dev->agp->acquired) return -EINVAL; @@ -198,17 +198,15 @@ int drm_agp_enable_ioctl(struct drm_device *dev, void *data, int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request) { struct drm_agp_mem *entry; - DRM_AGP_MEM *memory; + struct agp_memory *memory; unsigned long pages; u32 type; if (!dev->agp || !dev->agp->acquired) return -EINVAL; - if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL))) + if (!(entry = kzalloc(sizeof(*entry), GFP_KERNEL))) return -ENOMEM; - memset(entry, 0, sizeof(*entry)); - pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE; type = (u32) request->type; if (!(memory = agp_allocate_memory(dev->agp->bridge, pages, type))) { @@ -393,14 +391,16 @@ int drm_agp_free_ioctl(struct drm_device *dev, void *data, * 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. + * + * Note that final cleanup of the kmalloced structure is directly done in + * drm_pci_agp_destroy. */ struct drm_agp_head *drm_agp_init(struct drm_device *dev) { struct drm_agp_head *head = NULL; - if (!(head = kmalloc(sizeof(*head), GFP_KERNEL))) + if (!(head = kzalloc(sizeof(*head), GFP_KERNEL))) return NULL; - memset((void *)head, 0, sizeof(*head)); head->bridge = agp_find_bridge(dev->pdev); if (!head->bridge) { if (!(head->bridge = agp_backend_acquire(dev->pdev))) { @@ -424,20 +424,56 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev) } /** + * drm_agp_clear - Clear AGP resource list + * @dev: DRM device + * + * Iterate over all AGP resources and remove them. But keep the AGP head + * intact so it can still be used. It is safe to call this if AGP is disabled or + * was already removed. + * + * If DRIVER_MODESET is active, nothing is done to protect the modesetting + * resources from getting destroyed. Drivers are responsible of cleaning them up + * during device shutdown. + */ +void drm_agp_clear(struct drm_device *dev) +{ + struct drm_agp_mem *entry, *tempe; + + if (!dev->agp) + return; + if (drm_core_check_feature(dev, DRIVER_MODESET)) + return; + + list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { + if (entry->bound) + drm_unbind_agp(entry->memory); + drm_free_agp(entry->memory, entry->pages); + kfree(entry); + } + INIT_LIST_HEAD(&dev->agp->memory); + + if (dev->agp->acquired) + drm_agp_release(dev); + + dev->agp->acquired = 0; + dev->agp->enabled = 0; +} + +/** * Binds a collection of pages into AGP memory at the given offset, returning * the AGP memory structure containing them. * * No reference is held on the pages during this time -- it is up to the * caller to handle that. */ -DRM_AGP_MEM * +struct agp_memory * drm_agp_bind_pages(struct drm_device *dev, struct page **pages, unsigned long num_pages, uint32_t gtt_offset, u32 type) { - DRM_AGP_MEM *mem; + struct agp_memory *mem; int ret, i; DRM_DEBUG("\n"); |