[PATCH 5/5] drm/omap: kill omap_gem_helpers.c

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Signed-off-by: Rob Clark <robdclark@xxxxxxxxx>
---
 drivers/gpu/drm/omapdrm/Makefile           |   3 -
 drivers/gpu/drm/omapdrm/omap_gem.c         |   8 +-
 drivers/gpu/drm/omapdrm/omap_gem_helpers.c | 169 -----------------------------
 3 files changed, 4 insertions(+), 176 deletions(-)
 delete mode 100644 drivers/gpu/drm/omapdrm/omap_gem_helpers.c

diff --git a/drivers/gpu/drm/omapdrm/Makefile b/drivers/gpu/drm/omapdrm/Makefile
index d85e058..778372b 100644
--- a/drivers/gpu/drm/omapdrm/Makefile
+++ b/drivers/gpu/drm/omapdrm/Makefile
@@ -18,7 +18,4 @@ omapdrm-y := omap_drv.o \
 	omap_dmm_tiler.o \
 	tcm-sita.o
 
-# temporary:
-omapdrm-y += omap_gem_helpers.o
-
 obj-$(CONFIG_DRM_OMAP)	+= omapdrm.o
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index ebbdf41..1b5a724 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -236,7 +236,7 @@ static int omap_gem_attach_pages(struct drm_gem_object *obj)
 	 * mapping_gfp_mask(mapping) which conflicts w/ GFP_DMA32.. probably
 	 * we actually want CMA memory for it all anyways..
 	 */
-	pages = _drm_gem_get_pages(obj, GFP_KERNEL);
+	pages = drm_gem_get_pages(obj, GFP_KERNEL);
 	if (IS_ERR(pages)) {
 		dev_err(obj->dev->dev, "could not get pages: %ld\n", PTR_ERR(pages));
 		return PTR_ERR(pages);
@@ -270,7 +270,7 @@ static int omap_gem_attach_pages(struct drm_gem_object *obj)
 	return 0;
 
 free_pages:
-	_drm_gem_put_pages(obj, pages, true, false);
+	drm_gem_put_pages(obj, pages, true, false);
 
 	return ret;
 }
@@ -294,7 +294,7 @@ static void omap_gem_detach_pages(struct drm_gem_object *obj)
 	kfree(omap_obj->addrs);
 	omap_obj->addrs = NULL;
 
-	_drm_gem_put_pages(obj, omap_obj->pages, true, false);
+	drm_gem_put_pages(obj, omap_obj->pages, true, false);
 	omap_obj->pages = NULL;
 }
 
@@ -314,7 +314,7 @@ static uint64_t mmap_offset(struct drm_gem_object *obj)
 	if (!obj->map_list.map) {
 		/* Make it mmapable */
 		size_t size = omap_gem_mmap_size(obj);
-		int ret = _drm_gem_create_mmap_offset_size(obj, size);
+		int ret = drm_gem_create_mmap_offset_size(obj, size);
 
 		if (ret) {
 			dev_err(dev->dev, "could not allocate mmap offset\n");
diff --git a/drivers/gpu/drm/omapdrm/omap_gem_helpers.c b/drivers/gpu/drm/omapdrm/omap_gem_helpers.c
deleted file mode 100644
index f9eb679..0000000
--- a/drivers/gpu/drm/omapdrm/omap_gem_helpers.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * drivers/gpu/drm/omapdrm/omap_gem_helpers.c
- *
- * Copyright (C) 2011 Texas Instruments
- * Author: Rob Clark <rob.clark@xxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* temporary copy of drm_gem_{get,put}_pages() until the
- * "drm/gem: add functions to get/put pages" patch is merged..
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/shmem_fs.h>
-
-#include <drm/drmP.h>
-
-/**
- * drm_gem_get_pages - helper to allocate backing pages for a GEM object
- * @obj: obj in question
- * @gfpmask: gfp mask of requested pages
- */
-struct page **_drm_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask)
-{
-	struct inode *inode;
-	struct address_space *mapping;
-	struct page *p, **pages;
-	int i, npages;
-
-	/* This is the shared memory object that backs the GEM resource */
-	inode = file_inode(obj->filp);
-	mapping = inode->i_mapping;
-
-	npages = obj->size >> PAGE_SHIFT;
-
-	pages = drm_malloc_ab(npages, sizeof(struct page *));
-	if (pages == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	gfpmask |= mapping_gfp_mask(mapping);
-
-	for (i = 0; i < npages; i++) {
-		p = shmem_read_mapping_page_gfp(mapping, i, gfpmask);
-		if (IS_ERR(p))
-			goto fail;
-		pages[i] = p;
-
-		/* There is a hypothetical issue w/ drivers that require
-		 * buffer memory in the low 4GB.. if the pages are un-
-		 * pinned, and swapped out, they can end up swapped back
-		 * in above 4GB.  If pages are already in memory, then
-		 * shmem_read_mapping_page_gfp will ignore the gfpmask,
-		 * even if the already in-memory page disobeys the mask.
-		 *
-		 * It is only a theoretical issue today, because none of
-		 * the devices with this limitation can be populated with
-		 * enough memory to trigger the issue.  But this BUG_ON()
-		 * is here as a reminder in case the problem with
-		 * shmem_read_mapping_page_gfp() isn't solved by the time
-		 * it does become a real issue.
-		 *
-		 * See this thread: http://lkml.org/lkml/2011/7/11/238
-		 */
-		BUG_ON((gfpmask & __GFP_DMA32) &&
-				(page_to_pfn(p) >= 0x00100000UL));
-	}
-
-	return pages;
-
-fail:
-	while (i--)
-		page_cache_release(pages[i]);
-
-	drm_free_large(pages);
-	return ERR_CAST(p);
-}
-
-/**
- * drm_gem_put_pages - helper to free backing pages for a GEM object
- * @obj: obj in question
- * @pages: pages to free
- */
-void _drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
-		bool dirty, bool accessed)
-{
-	int i, npages;
-
-	npages = obj->size >> PAGE_SHIFT;
-
-	for (i = 0; i < npages; i++) {
-		if (dirty)
-			set_page_dirty(pages[i]);
-
-		if (accessed)
-			mark_page_accessed(pages[i]);
-
-		/* Undo the reference we took when populating the table */
-		page_cache_release(pages[i]);
-	}
-
-	drm_free_large(pages);
-}
-
-int
-_drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size)
-{
-	struct drm_device *dev = obj->dev;
-	struct drm_gem_mm *mm = dev->mm_private;
-	struct drm_map_list *list;
-	struct drm_local_map *map;
-	int ret = 0;
-
-	/* Set the object up for mmap'ing */
-	list = &obj->map_list;
-	list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL);
-	if (!list->map)
-		return -ENOMEM;
-
-	map = list->map;
-	map->type = _DRM_GEM;
-	map->size = size;
-	map->handle = obj;
-
-	/* Get a DRM GEM mmap offset allocated... */
-	list->file_offset_node = drm_mm_search_free(&mm->offset_manager,
-			size / PAGE_SIZE, 0, 0);
-
-	if (!list->file_offset_node) {
-		DRM_ERROR("failed to allocate offset for bo %d\n", obj->name);
-		ret = -ENOSPC;
-		goto out_free_list;
-	}
-
-	list->file_offset_node = drm_mm_get_block(list->file_offset_node,
-			size / PAGE_SIZE, 0);
-	if (!list->file_offset_node) {
-		ret = -ENOMEM;
-		goto out_free_list;
-	}
-
-	list->hash.key = list->file_offset_node->start;
-	ret = drm_ht_insert_item(&mm->offset_hash, &list->hash);
-	if (ret) {
-		DRM_ERROR("failed to add to map hash\n");
-		goto out_free_mm;
-	}
-
-	return 0;
-
-out_free_mm:
-	drm_mm_put_block(list->file_offset_node);
-out_free_list:
-	kfree(list->map);
-	list->map = NULL;
-
-	return ret;
-}
-- 
1.8.1.4

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