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drm/ttm: use drm calloc large and free large

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Now that the drm core can do this, lets just use it, split the code out
so TTM doesn't have to drag all of drmP.h in.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2010-03-09 06:33:26 +00:00
parent d424b925f7
commit 72e942dd84
4 changed files with 69 additions and 54 deletions
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drivers/gpu/drm/ttm/ttm_tt.c
+3 -20
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@@ -28,13 +28,13 @@
* Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
*/
#include <linux/vmalloc.h>
#include <linux/sched.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/file.h>
#include <linux/swap.h>
#include "drm_cache.h"
#include "drm_mem_util.h"
#include "ttm/ttm_module.h"
#include "ttm/ttm_bo_driver.h"
#include "ttm/ttm_placement.h"
@@ -43,32 +43,15 @@ static int ttm_tt_swapin(struct ttm_tt *ttm);
/**
* Allocates storage for pointers to the pages that back the ttm.
*
* Uses kmalloc if possible. Otherwise falls back to vmalloc.
*/
static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
{
unsigned long size = ttm->num_pages * sizeof(*ttm->pages);
ttm->pages = NULL;
if (size <= PAGE_SIZE)
ttm->pages = kzalloc(size, GFP_KERNEL);
if (!ttm->pages) {
ttm->pages = vmalloc_user(size);
if (ttm->pages)
ttm->page_flags |= TTM_PAGE_FLAG_VMALLOC;
}
ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(*ttm->pages));
}
static void ttm_tt_free_page_directory(struct ttm_tt *ttm)
{
if (ttm->page_flags & TTM_PAGE_FLAG_VMALLOC) {
vfree(ttm->pages);
ttm->page_flags &= ~TTM_PAGE_FLAG_VMALLOC;
} else {
kfree(ttm->pages);
}
drm_free_large(ttm->pages);
ttm->pages = NULL;
}