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-rw-r--r--drivers/gpu/drm/drm_dma.c178
1 files changed, 0 insertions, 178 deletions
diff --git a/drivers/gpu/drm/drm_dma.c b/drivers/gpu/drm/drm_dma.c
deleted file mode 100644
index eb6b741a6f..0000000000
--- a/drivers/gpu/drm/drm_dma.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * \file drm_dma.c
- * DMA IOCTL and function support
- *
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
- *
- * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * All Rights Reserved.
- *
- * 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 <linux/export.h>
-#include <linux/pci.h>
-
-#include <drm/drm_drv.h>
-#include <drm/drm_print.h>
-
-#include "drm_legacy.h"
-
-/**
- * drm_legacy_dma_setup() - Initialize the DMA data.
- *
- * @dev: DRM device.
- * Return: zero on success or a negative value on failure.
- *
- * Allocate and initialize a drm_device_dma structure.
- */
-int drm_legacy_dma_setup(struct drm_device *dev)
-{
- int i;
-
- if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) ||
- !drm_core_check_feature(dev, DRIVER_LEGACY))
- return 0;
-
- dev->buf_use = 0;
- atomic_set(&dev->buf_alloc, 0);
-
- dev->dma = kzalloc(sizeof(*dev->dma), GFP_KERNEL);
- if (!dev->dma)
- return -ENOMEM;
-
- for (i = 0; i <= DRM_MAX_ORDER; i++)
- memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
-
- return 0;
-}
-
-/**
- * drm_legacy_dma_takedown() - Cleanup the DMA resources.
- *
- * @dev: DRM device.
- *
- * Free all pages associated with DMA buffers, the buffers and pages lists, and
- * finally the drm_device::dma structure itself.
- */
-void drm_legacy_dma_takedown(struct drm_device *dev)
-{
- struct drm_device_dma *dma = dev->dma;
- drm_dma_handle_t *dmah;
- int i, j;
-
- if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) ||
- !drm_core_check_feature(dev, DRIVER_LEGACY))
- return;
-
- if (!dma)
- return;
-
- /* Clear dma buffers */
- for (i = 0; i <= DRM_MAX_ORDER; i++) {
- if (dma->bufs[i].seg_count) {
- DRM_DEBUG("order %d: buf_count = %d,"
- " seg_count = %d\n",
- i,
- dma->bufs[i].buf_count,
- dma->bufs[i].seg_count);
- for (j = 0; j < dma->bufs[i].seg_count; j++) {
- if (dma->bufs[i].seglist[j]) {
- dmah = dma->bufs[i].seglist[j];
- dma_free_coherent(dev->dev,
- dmah->size,
- dmah->vaddr,
- dmah->busaddr);
- kfree(dmah);
- }
- }
- kfree(dma->bufs[i].seglist);
- }
- if (dma->bufs[i].buf_count) {
- for (j = 0; j < dma->bufs[i].buf_count; j++) {
- kfree(dma->bufs[i].buflist[j].dev_private);
- }
- kfree(dma->bufs[i].buflist);
- }
- }
-
- kfree(dma->buflist);
- kfree(dma->pagelist);
- kfree(dev->dma);
- dev->dma = NULL;
-}
-
-/**
- * drm_legacy_free_buffer() - Free a buffer.
- *
- * @dev: DRM device.
- * @buf: buffer to free.
- *
- * Resets the fields of \p buf.
- */
-void drm_legacy_free_buffer(struct drm_device *dev, struct drm_buf * buf)
-{
- if (!buf)
- return;
-
- buf->waiting = 0;
- buf->pending = 0;
- buf->file_priv = NULL;
- buf->used = 0;
-}
-
-/**
- * drm_legacy_reclaim_buffers() - Reclaim the buffers.
- *
- * @dev: DRM device.
- * @file_priv: DRM file private.
- *
- * Frees each buffer associated with \p file_priv not already on the hardware.
- */
-void drm_legacy_reclaim_buffers(struct drm_device *dev,
- struct drm_file *file_priv)
-{
- struct drm_device_dma *dma = dev->dma;
- int i;
-
- if (!dma)
- return;
- for (i = 0; i < dma->buf_count; i++) {
- if (dma->buflist[i]->file_priv == file_priv) {
- switch (dma->buflist[i]->list) {
- case DRM_LIST_NONE:
- drm_legacy_free_buffer(dev, dma->buflist[i]);
- break;
- case DRM_LIST_WAIT:
- dma->buflist[i]->list = DRM_LIST_RECLAIM;
- break;
- default:
- /* Buffer already on hardware. */
- break;
- }
- }
- }
-}