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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2012-09-25 11:57:02 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-10-02 09:26:17 +1000 |
| commit | 259a290e78d639bd02d0e408ceb72967318abb13 (patch) | |
| tree | f217ae8df6efa4b6febebbcbcef5367bd0d66f42 | |
| parent | 27796b465d25bc48f785c235be33cdc334a624e6 (diff) | |
| download | linux-259a290e78d639bd02d0e408ceb72967318abb13.tar.bz2 | |
gpu/drm/ttm: use copy_highpage
Use copy_highpage() to copy from one page to another.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index fa09daf9a50c..11c9369d4208 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -290,8 +290,6 @@ int ttm_tt_swapin(struct ttm_tt *ttm) struct file *swap_storage; struct page *from_page; struct page *to_page; - void *from_virtual; - void *to_virtual; int i; int ret = -ENOMEM; @@ -311,11 +309,7 @@ int ttm_tt_swapin(struct ttm_tt *ttm) goto out_err; preempt_disable(); - from_virtual = kmap_atomic(from_page); - to_virtual = kmap_atomic(to_page); - memcpy(to_virtual, from_virtual, PAGE_SIZE); - kunmap_atomic(to_virtual); - kunmap_atomic(from_virtual); + copy_highpage(to_page, from_page); preempt_enable(); page_cache_release(from_page); } @@ -336,8 +330,6 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage) struct file *swap_storage; struct page *from_page; struct page *to_page; - void *from_virtual; - void *to_virtual; int i; int ret = -ENOMEM; @@ -367,11 +359,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage) goto out_err; } preempt_disable(); - from_virtual = kmap_atomic(from_page); - to_virtual = kmap_atomic(to_page); - memcpy(to_virtual, from_virtual, PAGE_SIZE); - kunmap_atomic(to_virtual); - kunmap_atomic(from_virtual); + copy_highpage(to_page, from_page); preempt_enable(); set_page_dirty(to_page); mark_page_accessed(to_page); |