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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>
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@ -290,8 +290,6 @@ int ttm_tt_swapin(struct ttm_tt *ttm)
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struct file *swap_storage;
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struct page *from_page;
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struct page *to_page;
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void *from_virtual;
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void *to_virtual;
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int i;
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int ret = -ENOMEM;
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@ -311,11 +309,7 @@ int ttm_tt_swapin(struct ttm_tt *ttm)
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goto out_err;
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preempt_disable();
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from_virtual = kmap_atomic(from_page);
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to_virtual = kmap_atomic(to_page);
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memcpy(to_virtual, from_virtual, PAGE_SIZE);
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kunmap_atomic(to_virtual);
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kunmap_atomic(from_virtual);
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copy_highpage(to_page, from_page);
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preempt_enable();
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page_cache_release(from_page);
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}
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@ -336,8 +330,6 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
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struct file *swap_storage;
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struct page *from_page;
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struct page *to_page;
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void *from_virtual;
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void *to_virtual;
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int i;
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int ret = -ENOMEM;
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@ -367,11 +359,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
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goto out_err;
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}
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preempt_disable();
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from_virtual = kmap_atomic(from_page);
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to_virtual = kmap_atomic(to_page);
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memcpy(to_virtual, from_virtual, PAGE_SIZE);
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kunmap_atomic(to_virtual);
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kunmap_atomic(from_virtual);
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copy_highpage(to_page, from_page);
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preempt_enable();
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set_page_dirty(to_page);
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mark_page_accessed(to_page);
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