1 files changed, 0 insertions, 288 deletions
diff --git a/drivers/gpu/drm/exynos_tmp/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos_tmp/exynos_drm_dmabuf.c
deleted file mode 100644
index 9b97057..0000000
--- a/drivers/gpu/drm/exynos_tmp/exynos_drm_dmabuf.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/* exynos_drm_dmabuf.c
- *
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- * Author: Inki Dae <inki.dae@samsung.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include "drmP.h"
-#include "drm.h"
-#include "exynos_drm_drv.h"
-#include "exynos_drm_gem.h"
-
-#include <linux/dma-buf.h>
-
-static struct sg_table *exynos_pages_to_sg(struct page **pages, int nr_pages,
-		unsigned int page_size)
-{
-	struct sg_table *sgt = NULL;
-	struct scatterlist *sgl;
-	int i, ret;
-
-	sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
-	if (!sgt)
-		goto out;
-
-	ret = sg_alloc_table(sgt, nr_pages, GFP_KERNEL);
-	if (ret)
-		goto err_free_sgt;
-
-	if (page_size < PAGE_SIZE)
-		page_size = PAGE_SIZE;
-
-	for_each_sg(sgt->sgl, sgl, nr_pages, i)
-		sg_set_page(sgl, pages[i], page_size, 0);
-
-	return sgt;
-
-err_free_sgt:
-	kfree(sgt);
-	sgt = NULL;
-out:
-	return NULL;
-}
-
-static struct sg_table *exynos_gem_map_dma_buf(
-	struct dma_buf_attachment *attach,
-	enum dma_data_direction dir)
-{
-	struct exynos_drm_gem_obj *gem_obj = attach->dmabuf->priv;
-	struct drm_device *dev = gem_obj->base.dev;
-	struct exynos_drm_gem_buf *buf;
-	struct sg_table *sgt = NULL;
-	unsigned int npages;
-	int nents;
-
-	DRM_DEBUG_PRIME("%s\n", __FILE__);
-
-	mutex_lock(&dev->struct_mutex);
-
-	buf = gem_obj->buffer;
-
-	/* there should always be pages allocated. */
-	if (!buf->pages) {
-		DRM_ERROR("pages is null.\n");
-		goto err_unlock;
-	}
-
-	npages = buf->size / buf->page_size;
-
-	sgt = exynos_pages_to_sg(buf->pages, npages, buf->page_size);
-	nents = dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir);
-
-	DRM_DEBUG_PRIME("npages = %d buffer size = 0x%lx page_size = 0x%lx\n",
-			npages, buf->size, buf->page_size);
-
-err_unlock:
-	mutex_unlock(&dev->struct_mutex);
-	return sgt;
-}
-
-static void exynos_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
-						struct sg_table *sgt,
-						enum dma_data_direction dir)
-{
-	dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents, dir);
-	sg_free_table(sgt);
-	kfree(sgt);
-	sgt = NULL;
-}
-
-static void exynos_dmabuf_release(struct dma_buf *dmabuf)
-{
-	struct exynos_drm_gem_obj *exynos_gem_obj = dmabuf->priv;
-
-	DRM_DEBUG_PRIME("%s\n", __FILE__);
-
-	/*
-	 * exynos_dmabuf_release() call means that file object's
-	 * f_count is 0 and it calls drm_gem_object_handle_unreference()
-	 * to drop the references that these values had been increased
-	 * at drm_prime_handle_to_fd()
-	 */
-	if (exynos_gem_obj->base.export_dma_buf == dmabuf) {
-		exynos_gem_obj->base.export_dma_buf = NULL;
-
-		/*
-		 * drop this gem object refcount to release allocated buffer
-		 * and resources.
-		 */
-		drm_gem_object_unreference_unlocked(&exynos_gem_obj->base);
-	}
-}
-
-static void *exynos_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
-						unsigned long page_num)
-{
-	return NULL;
-}
-
-static void exynos_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
-						unsigned long page_num,
-						void *addr)
-{
-
-}
-
-static void *exynos_gem_dmabuf_kmap(struct dma_buf *dma_buf,
-					unsigned long page_num)
-{
-	return NULL;
-}
-
-static void exynos_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
-					unsigned long page_num, void *addr)
-{
-
-}
-
-static struct dma_buf_ops exynos_dmabuf_ops = {
-	.map_dma_buf		= exynos_gem_map_dma_buf,
-	.unmap_dma_buf		= exynos_gem_unmap_dma_buf,
-	.kmap			= exynos_gem_dmabuf_kmap,
-	.kmap_atomic		= exynos_gem_dmabuf_kmap_atomic,
-	.kunmap			= exynos_gem_dmabuf_kunmap,
-	.kunmap_atomic		= exynos_gem_dmabuf_kunmap_atomic,
-	.release		= exynos_dmabuf_release,
-};
-
-struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev,
-				struct drm_gem_object *obj, int flags)
-{
-	struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
-
-	return dma_buf_export(exynos_gem_obj, &exynos_dmabuf_ops,
-				exynos_gem_obj->base.size, 0600);
-}
-
-struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
-				struct dma_buf *dma_buf)
-{
-	struct dma_buf_attachment *attach;
-	struct sg_table *sgt;
-	struct scatterlist *sgl;
-	struct exynos_drm_gem_obj *exynos_gem_obj;
-	struct exynos_drm_gem_buf *buffer;
-	struct page *page;
-	int ret;
-
-	DRM_DEBUG_PRIME("%s\n", __FILE__);
-
-	/* is this one of own objects? */
-	if (dma_buf->ops == &exynos_dmabuf_ops) {
-		struct drm_gem_object *obj;
-
-		exynos_gem_obj = dma_buf->priv;
-		obj = &exynos_gem_obj->base;
-
-		/* is it from our device? */
-		if (obj->dev == drm_dev) {
-			drm_gem_object_reference(obj);
-			return obj;
-		}
-	}
-
-	attach = dma_buf_attach(dma_buf, drm_dev->dev);
-	if (IS_ERR(attach))
-		return ERR_PTR(-EINVAL);
-
-
-	sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
-	if (IS_ERR(sgt)) {
-		ret = PTR_ERR(sgt);
-		goto err_buf_detach;
-	}
-
-	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
-	if (!buffer) {
-		DRM_ERROR("failed to allocate exynos_drm_gem_buf.\n");
-		ret = -ENOMEM;
-		goto err_unmap_attach;
-	}
-
-	buffer->pages = kzalloc(sizeof(*page) * sgt->nents, GFP_KERNEL);
-	if (!buffer->pages) {
-		DRM_ERROR("failed to allocate pages.\n");
-		ret = -ENOMEM;
-		goto err_free_buffer;
-	}
-
-	exynos_gem_obj = exynos_drm_gem_init(drm_dev, dma_buf->size);
-	if (!exynos_gem_obj) {
-		ret = -ENOMEM;
-		goto err_free_pages;
-	}
-
-	sgl = sgt->sgl;
-
-	if (sgt->nents == 1) {
-		buffer->dma_addr = sg_dma_address(sgt->sgl);
-		buffer->size = sg_dma_len(sgt->sgl);
-	} else {
-		unsigned int i = 0;
-
-		buffer->dma_addr = sg_dma_address(sgl);
-		while (i < sgt->nents) {
-			buffer->pages[i] = sg_page(sgl);
-			buffer->size += sg_dma_len(sgl);
-			sgl = sg_next(sgl);
-			i++;
-		}
-	}
-
-	exynos_gem_obj->buffer = buffer;
-	buffer->sgt = sgt;
-	exynos_gem_obj->base.import_attach = attach;
-
-	/* register buffer information to private buffer manager. */
-	ret = register_buf_to_priv_mgr(exynos_gem_obj,
-					&exynos_gem_obj->priv_handle,
-					&exynos_gem_obj->priv_id);
-	if (ret < 0)
-		goto err_release_gem;
-
-	DRM_DEBUG_PRIME("ump id = %d, dma_addr = 0x%x, size = 0x%lx\n",
-			exynos_gem_obj->priv_id,
-			buffer->dma_addr,
-			buffer->size);
-
-	return &exynos_gem_obj->base;
-
-err_release_gem:
-	drm_gem_object_release(&exynos_gem_obj->base);
-	kfree(exynos_gem_obj);
-	exynos_gem_obj = NULL;
-err_free_pages:
-	kfree(buffer->pages);
-	buffer->pages = NULL;
-err_free_buffer:
-	kfree(buffer);
-	buffer = NULL;
-err_unmap_attach:
-	dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL);
-err_buf_detach:
-	dma_buf_detach(dma_buf, attach);
-	return ERR_PTR(ret);
-}
-
-MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
-MODULE_DESCRIPTION("Samsung SoC DRM DMABUF Module");
-MODULE_LICENSE("GPL");