summaryrefslogtreecommitdiff
path: root/bsd/mga/mga_context.c
diff options
context:
space:
mode:
Diffstat (limited to 'bsd/mga/mga_context.c')
-rw-r--r--bsd/mga/mga_context.c200
1 files changed, 0 insertions, 200 deletions
diff --git a/bsd/mga/mga_context.c b/bsd/mga/mga_context.c
deleted file mode 100644
index 63515bab..00000000
--- a/bsd/mga/mga_context.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/* mga_context.c -- IOCTLs for mga contexts
- * Created: Mon Dec 13 09:51:35 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.
- *
- * Author: Rickard E. (Rik) Faith <faith@valinux.com>
- * Jeff Hartmann <jhartmann@valinux.com>
- *
- */
-
-#define __NO_VERSION__
-#include "drmP.h"
-#include "mga_drv.h"
-
-static int mga_alloc_queue(drm_device_t *dev)
-{
- int temp = drm_ctxbitmap_next(dev);
- DRM_DEBUG("mga_alloc_queue: %d\n", temp);
- return temp;
-}
-
-int mga_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
- getnanotime(&dev->ctx_start);
-#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) {
- mga_context_switch_complete(dev, new);
- } else {
- sprintf(buf, "C %d %d\n", old, new);
- drm_write_string(dev, buf);
- }
-
- return 0;
-}
-
-int mga_context_switch_complete(drm_device_t *dev, int new)
-{
- dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
- dev->last_switch = ticks;
-
- 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
- {
- struct timespec ts;
- getnanotime(&ts);
- timespecsub(&ts, &dev->lck_start);
- atomic_inc(&dev->histo.ctx[drm_histogram_slot(&ts)]);
- }
-#endif
- clear_bit(0, &dev->context_flag);
- wakeup(&dev->context_wait);
-
- return 0;
-}
-
-int
-mga_resctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- drm_ctx_res_t res;
- drm_ctx_t ctx;
- int i, error;
-
- DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
- res = *(drm_ctx_res_t *) data;
- if (res.count >= DRM_RESERVED_CONTEXTS) {
- memset(&ctx, 0, sizeof(ctx));
- for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
- ctx.handle = i;
- error = copyout(&i, &res.contexts[i], sizeof(i));
- if (error) return error;
- }
- }
- res.count = DRM_RESERVED_CONTEXTS;
- *(drm_ctx_res_t *) data = res;
- return 0;
-}
-
-int
-mga_addctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_ctx_t ctx;
-
- ctx = *(drm_ctx_t *) data;
- if ((ctx.handle = mga_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) {
- /* Skip kernel's context and get a new one. */
- ctx.handle = mga_alloc_queue(dev);
- }
- if (ctx.handle == -1) {
- DRM_DEBUG("Not enough free contexts.\n");
- /* Should this return EBUSY instead? */
- return ENOMEM;
- }
- DRM_DEBUG("%d\n", ctx.handle);
- *(drm_ctx_t *) data = ctx;
- return 0;
-}
-
-int
-mga_modctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- /* This does nothing for the mga */
- return 0;
-}
-
-int mga_getctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- drm_ctx_t ctx;
-
- ctx = *(drm_ctx_t *) data;
- /* This is 0, because we don't hanlde any context flags */
- ctx.flags = 0;
- *(drm_ctx_t *) data = ctx;
- return 0;
-}
-
-int mga_switchctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_ctx_t ctx;
-
- ctx = *(drm_ctx_t *) data;
- DRM_DEBUG("%d\n", ctx.handle);
- return mga_context_switch(dev, dev->last_context, ctx.handle);
-}
-
-int mga_newctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_ctx_t ctx;
-
- ctx = *(drm_ctx_t *) data;
- DRM_DEBUG("%d\n", ctx.handle);
- mga_context_switch_complete(dev, ctx.handle);
-
- return 0;
-}
-
-int mga_rmctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_ctx_t ctx;
-
- ctx = *(drm_ctx_t *) data;
- DRM_DEBUG("%d\n", ctx.handle);
-/*
- if(ctx.handle == DRM_KERNEL_CONTEXT+1)
- priv->remove_auth_on_close = 1;
-*/
- if(ctx.handle != DRM_KERNEL_CONTEXT ) {
- drm_ctxbitmap_free(dev, ctx.handle);
- }
-
- return 0;
-}