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path: root/drivers/gpu/drm/drm_agpsupport.c
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Diffstat (limited to 'drivers/gpu/drm/drm_agpsupport.c')
-rw-r--r--drivers/gpu/drm/drm_agpsupport.c104
1 files changed, 52 insertions, 52 deletions
diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c
index 3d33b8252b5..dde205cef38 100644
--- a/drivers/gpu/drm/drm_agpsupport.c
+++ b/drivers/gpu/drm/drm_agpsupport.c
@@ -31,12 +31,14 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
-#include "drmP.h"
+#include <drm/drmP.h>
#include <linux/module.h>
-#include <asm/agp.h>
+#include <linux/slab.h>
#if __OS_HAS_AGP
+#include <asm/agp.h>
+
/**
* Get AGP information.
*
@@ -51,7 +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;
@@ -191,26 +193,24 @@ int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
* \return zero on success or a negative number on failure.
*
* 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.
+ * memory via agp_allocate_memory() and creates a drm_agp_mem entry for it.
*/
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 = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS)))
+ 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 = drm_alloc_agp(dev, pages, type))) {
- drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
+ if (!(memory = agp_allocate_memory(dev->agp->bridge, pages, type))) {
+ kfree(entry);
return -ENOMEM;
}
@@ -368,7 +368,7 @@ int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
list_del(&entry->head);
drm_free_agp(entry->memory, entry->pages);
- drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
+ kfree(entry);
return 0;
}
EXPORT_SYMBOL(drm_agp_free);
@@ -391,18 +391,20 @@ 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 = drm_alloc(sizeof(*head), DRM_MEM_AGPLISTS)))
+ 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))) {
- drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS);
+ kfree(head);
return NULL;
}
agp_copy_info(head->bridge, &head->agp_info);
@@ -411,7 +413,7 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev)
agp_copy_info(head->bridge, &head->agp_info);
}
if (head->agp_info.chipset == NOT_SUPPORTED) {
- drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS);
+ kfree(head);
return NULL;
}
INIT_LIST_HEAD(&head->memory);
@@ -421,36 +423,40 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev)
return head;
}
-/** Calls agp_allocate_memory() */
-DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data * bridge,
- size_t pages, u32 type)
+/**
+ * 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)
{
- return agp_allocate_memory(bridge, pages, type);
-}
+ struct drm_agp_mem *entry, *tempe;
-/** Calls agp_free_memory() */
-int drm_agp_free_memory(DRM_AGP_MEM * handle)
-{
- if (!handle)
- return 0;
- agp_free_memory(handle);
- return 1;
-}
+ 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);
-/** Calls agp_bind_memory() */
-int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start)
-{
- if (!handle)
- return -EINVAL;
- return agp_bind_memory(handle, start);
-}
+ if (dev->agp->acquired)
+ drm_agp_release(dev);
-/** Calls agp_unbind_memory() */
-int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
-{
- if (!handle)
- return -EINVAL;
- return agp_unbind_memory(handle);
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
}
/**
@@ -460,19 +466,19 @@ int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
* 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");
- mem = drm_agp_allocate_memory(dev->agp->bridge, num_pages,
+ mem = agp_allocate_memory(dev->agp->bridge, num_pages,
type);
if (mem == NULL) {
DRM_ERROR("Failed to allocate memory for %ld pages\n",
@@ -481,11 +487,11 @@ drm_agp_bind_pages(struct drm_device *dev,
}
for (i = 0; i < num_pages; i++)
- mem->memory[i] = phys_to_gart(page_to_phys(pages[i]));
+ mem->pages[i] = pages[i];
mem->page_count = num_pages;
mem->is_flushed = true;
- ret = drm_agp_bind_memory(mem, gtt_offset / PAGE_SIZE);
+ ret = agp_bind_memory(mem, gtt_offset / PAGE_SIZE);
if (ret != 0) {
DRM_ERROR("Failed to bind AGP memory: %d\n", ret);
agp_free_memory(mem);
@@ -496,10 +502,4 @@ drm_agp_bind_pages(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_agp_bind_pages);
-void drm_agp_chipset_flush(struct drm_device *dev)
-{
- agp_flush_chipset(dev->agp->bridge);
-}
-EXPORT_SYMBOL(drm_agp_chipset_flush);
-
#endif /* __OS_HAS_AGP */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 13:29:28 +0000