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@@ -1,124 +0,0 @@
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-/*
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- * drivers/gpu/drm/omapdrm/omap_gem_helpers.c
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- *
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- * Copyright (C) 2011 Texas Instruments
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- * Author: Rob Clark <rob.clark@linaro.org>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program. If not, see <http://www.gnu.org/licenses/>.
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- */
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-
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-/* temporary copy of drm_gem_{get,put}_pages() until the
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- * "drm/gem: add functions to get/put pages" patch is merged..
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- */
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-
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-#include <linux/module.h>
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-#include <linux/types.h>
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-#include <linux/shmem_fs.h>
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-
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-#include <drm/drmP.h>
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-
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-/**
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- * drm_gem_get_pages - helper to allocate backing pages for a GEM object
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- * @obj: obj in question
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- * @gfpmask: gfp mask of requested pages
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- */
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-struct page **_drm_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask)
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-{
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- struct inode *inode;
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- struct address_space *mapping;
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- struct page *p, **pages;
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- int i, npages;
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-
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- /* This is the shared memory object that backs the GEM resource */
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- inode = file_inode(obj->filp);
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- mapping = inode->i_mapping;
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-
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- npages = obj->size >> PAGE_SHIFT;
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-
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- pages = drm_malloc_ab(npages, sizeof(struct page *));
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- if (pages == NULL)
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- return ERR_PTR(-ENOMEM);
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-
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- gfpmask |= mapping_gfp_mask(mapping);
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-
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- for (i = 0; i < npages; i++) {
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- p = shmem_read_mapping_page_gfp(mapping, i, gfpmask);
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- if (IS_ERR(p))
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- goto fail;
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- pages[i] = p;
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-
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- /* There is a hypothetical issue w/ drivers that require
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- * buffer memory in the low 4GB.. if the pages are un-
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- * pinned, and swapped out, they can end up swapped back
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- * in above 4GB. If pages are already in memory, then
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- * shmem_read_mapping_page_gfp will ignore the gfpmask,
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- * even if the already in-memory page disobeys the mask.
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- *
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- * It is only a theoretical issue today, because none of
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- * the devices with this limitation can be populated with
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- * enough memory to trigger the issue. But this BUG_ON()
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- * is here as a reminder in case the problem with
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- * shmem_read_mapping_page_gfp() isn't solved by the time
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- * it does become a real issue.
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- *
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- * See this thread: http://lkml.org/lkml/2011/7/11/238
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- */
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- BUG_ON((gfpmask & __GFP_DMA32) &&
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- (page_to_pfn(p) >= 0x00100000UL));
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- }
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-
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- return pages;
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-
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-fail:
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- while (i--)
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- page_cache_release(pages[i]);
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-
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- drm_free_large(pages);
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- return ERR_CAST(p);
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-}
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-
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-/**
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- * drm_gem_put_pages - helper to free backing pages for a GEM object
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- * @obj: obj in question
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- * @pages: pages to free
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- */
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-void _drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
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- bool dirty, bool accessed)
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-{
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- int i, npages;
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-
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- npages = obj->size >> PAGE_SHIFT;
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-
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- for (i = 0; i < npages; i++) {
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- if (dirty)
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- set_page_dirty(pages[i]);
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-
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- if (accessed)
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- mark_page_accessed(pages[i]);
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-
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- /* Undo the reference we took when populating the table */
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- page_cache_release(pages[i]);
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- }
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-
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- drm_free_large(pages);
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-}
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-
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-int
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-_drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size)
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-{
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- struct drm_device *dev = obj->dev;
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- struct drm_gem_mm *mm = dev->mm_private;
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-
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- return drm_vma_offset_add(&mm->vma_manager, &obj->vma_node,
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- size / PAGE_SIZE);
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-}
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Rob Clark