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-rw-r--r--linux/tdfx_context.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/linux/tdfx_context.c b/linux/tdfx_context.c
deleted file mode 100644
index 1fd73310..00000000
--- a/linux/tdfx_context.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/* tdfx_context.c -- IOCTLs for tdfx contexts -*- linux-c -*-
- * Created: Thu Oct 7 10:50:22 1999 by faith@precisioninsight.com
- *
- * Copyright 1999 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
- * PRECISION INSIGHT 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.
- *
- * Authors:
- * Rickard E. (Rik) Faith <faith@valinux.com>
- * Daryll Strauss <daryll@valinux.com>
- *
- */
-
-#define __NO_VERSION__
-#include "drmP.h"
-#include "tdfx_drv.h"
-
-extern drm_ctx_t tdfx_res_ctx;
-
-static int tdfx_alloc_queue(drm_device_t *dev)
-{
- return drm_ctxbitmap_next(dev);
-}
-
-int tdfx_context_switch(drm_device_t *dev, int old, int new)
-{
- char buf[64];
-
- atomic_inc(&dev->total_ctx);
-
- if (test_and_set_bit(0, &dev->context_flag)) {
- DRM_ERROR("Reentering -- FIXME\n");
- return -EBUSY;
- }
-
-#if DRM_DMA_HISTOGRAM
- dev->ctx_start = get_cycles();
-#endif
-
- DRM_DEBUG("Context switch from %d to %d\n", old, new);
-
- if (new == dev->last_context) {
- clear_bit(0, &dev->context_flag);
- return 0;
- }
-
- if (drm_flags & DRM_FLAG_NOCTX) {
- tdfx_context_switch_complete(dev, new);
- } else {
- sprintf(buf, "C %d %d\n", old, new);
- drm_write_string(dev, buf);
- }
-
- return 0;
-}
-
-int tdfx_context_switch_complete(drm_device_t *dev, int new)
-{
- dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
- dev->last_switch = jiffies;
-
- if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("Lock isn't held after context switch\n");
- }
-
- /* If a context switch is ever initiated
- when the kernel holds the lock, release
- that lock here. */
-#if DRM_DMA_HISTOGRAM
- atomic_inc(&dev->histo.ctx[drm_histogram_slot(get_cycles()
- - dev->ctx_start)]);
-
-#endif
- clear_bit(0, &dev->context_flag);
- wake_up(&dev->context_wait);
-
- return 0;
-}
-
-
-int tdfx_resctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_ctx_res_t res;
- drm_ctx_t ctx;
- int i;
-
- DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
- if (copy_from_user(&res, (drm_ctx_res_t *)arg, sizeof(res)))
- return -EFAULT;
- if (res.count >= DRM_RESERVED_CONTEXTS) {
- memset(&ctx, 0, sizeof(ctx));
- for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
- ctx.handle = i;
- if (copy_to_user(&res.contexts[i],
- &i,
- sizeof(i)))
- return -EFAULT;
- }
- }
- res.count = DRM_RESERVED_CONTEXTS;
- if (copy_to_user((drm_ctx_res_t *)arg, &res, sizeof(res)))
- return -EFAULT;
- return 0;
-}
-
-
-int tdfx_addctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- if ((ctx.handle = tdfx_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) {
- /* Skip kernel's context and get a new one. */
- ctx.handle = tdfx_alloc_queue(dev);
- }
- DRM_DEBUG("%d\n", ctx.handle);
- if (ctx.handle == -1) {
- DRM_DEBUG("Not enough free contexts.\n");
- /* Should this return -EBUSY instead? */
- return -ENOMEM;
- }
-
- if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
- return -EFAULT;
- return 0;
-}
-
-int tdfx_modctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t*)arg, sizeof(ctx)))
- return -EFAULT;
- if (ctx.flags==_DRM_CONTEXT_PRESERVED)
- tdfx_res_ctx.handle=ctx.handle;
- return 0;
-}
-
-int tdfx_getctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t*)arg, sizeof(ctx)))
- return -EFAULT;
- /* This is 0, because we don't handle any context flags */
- ctx.flags = 0;
- if (copy_to_user((drm_ctx_t*)arg, &ctx, sizeof(ctx)))
- return -EFAULT;
- return 0;
-}
-
-int tdfx_switchctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- DRM_DEBUG("%d\n", ctx.handle);
- return tdfx_context_switch(dev, dev->last_context, ctx.handle);
-}
-
-int tdfx_newctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- DRM_DEBUG("%d\n", ctx.handle);
- tdfx_context_switch_complete(dev, ctx.handle);
-
- return 0;
-}
-
-int tdfx_rmctx(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_ctx_t ctx;
-
- if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
- return -EFAULT;
- DRM_DEBUG("%d\n", ctx.handle);
- drm_ctxbitmap_free(dev, ctx.handle);
-
- return 0;
-}
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