drm: update support for drm pci buffers

The DRM needs to change the drm_pci interface for FreeBSD compatiblity,
this patch introduces the drm_dma_handle_t and uses it in the Linux code.

From: Tonnerre Lombard, Eric Anholt, and Sergey Vlasov
Signed-off-by: David Airlie <airlied@linux.ie>

1 files changed, 10 insertions, 6 deletions

diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 804e622436a9..7e633a9ce933 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -527,6 +527,12 @@ typedef struct drm_sigdata {
         drm_hw_lock_t *lock;
 } drm_sigdata_t;
 
+typedef struct drm_dma_handle {
+        dma_addr_t busaddr;
+        void *vaddr;
+        size_t size;
+} drm_dma_handle_t;
+
 /**
  * Mappings list
  */
@@ -978,12 +984,10 @@ extern int            drm_ati_pcigart_cleanup(drm_device_t *dev,
                                                unsigned long addr,
                                                dma_addr_t bus_addr);
 
-extern void *drm_pci_alloc(drm_device_t * dev, size_t size,
-                           size_t align, dma_addr_t maxaddr,
-                           dma_addr_t * busaddr);
-
-extern void drm_pci_free(drm_device_t * dev, size_t size,
-                         void *vaddr, dma_addr_t busaddr);
+extern drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size,
+                                       size_t align, dma_addr_t maxaddr);
+extern void __drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah);
+extern void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah);
 
                                /* sysfs support (drm_sysfs.c) */
 struct drm_sysfs_class;