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>
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index eb3cf55..be54efb 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -90,6 +90,7 @@
drm_map_t *map;
drm_map_t __user *argp = (void __user *)arg;
drm_map_list_t *list;
+ drm_dma_handle_t *dmah;
if ( !(filp->f_mode & 3) ) return -EACCES; /* Require read/write */
@@ -181,21 +182,19 @@
map->offset += dev->sg->handle;
break;
case _DRM_CONSISTENT:
- {
/* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G,
- * As we're limit the address to 2^32-1 (or lses),
+ * As we're limiting the address to 2^32-1 (or less),
* casting it down to 32 bits is no problem, but we
* need to point to a 64bit variable first. */
- dma_addr_t bus_addr;
- map->handle = drm_pci_alloc(dev, map->size, map->size,
- 0xffffffffUL, &bus_addr);
- map->offset = (unsigned long)bus_addr;
- if (!map->handle) {
+ dmah = drm_pci_alloc(dev, map->size, map->size, 0xffffffffUL);
+ if (!dmah) {
drm_free(map, sizeof(*map), DRM_MEM_MAPS);
return -ENOMEM;
}
+ map->handle = dmah->vaddr;
+ map->offset = (unsigned long)dmah->busaddr;
+ kfree(dmah);
break;
- }
default:
drm_free( map, sizeof(*map), DRM_MEM_MAPS );
return -EINVAL;
@@ -286,6 +285,8 @@
}
if(!found_maps) {
+ drm_dma_handle_t dmah;
+
switch (map->type) {
case _DRM_REGISTERS:
case _DRM_FRAME_BUFFER:
@@ -307,7 +308,10 @@
case _DRM_SCATTER_GATHER:
break;
case _DRM_CONSISTENT:
- drm_pci_free(dev, map->size, map->handle, map->offset);
+ dmah.vaddr = map->handle;
+ dmah.busaddr = map->offset;
+ dmah.size = map->size;
+ __drm_pci_free(dev, &dmah);
break;
}
drm_free(map, sizeof(*map), DRM_MEM_MAPS);