diff options
Diffstat (limited to 'linux/ctxbitmap.c')
| -rw-r--r-- | linux/ctxbitmap.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/linux/ctxbitmap.c b/linux/ctxbitmap.c deleted file mode 100644 index 61550597..00000000 --- a/linux/ctxbitmap.c +++ /dev/null @@ -1,85 +0,0 @@ -/* ctxbitmap.c -- Context bitmap management -*- linux-c -*- - * Created: Thu Jan 6 03:56:42 2000 by jhartmann@precisioninsight.com - * - * Copyright 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 - * 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: Jeff Hartmann <jhartmann@valinux.com> - * - */ - -#define __NO_VERSION__ -#include "drmP.h" - -void drm_ctxbitmap_free(drm_device_t *dev, int ctx_handle) -{ - if (ctx_handle < 0) goto failed; - - if (ctx_handle < DRM_MAX_CTXBITMAP) { - clear_bit(ctx_handle, dev->ctx_bitmap); - return; - } -failed: - DRM_ERROR("Attempt to free invalid context handle: %d\n", - ctx_handle); - return; -} - -int drm_ctxbitmap_next(drm_device_t *dev) -{ - int bit; - - bit = find_first_zero_bit(dev->ctx_bitmap, DRM_MAX_CTXBITMAP); - if (bit < DRM_MAX_CTXBITMAP) { - set_bit(bit, dev->ctx_bitmap); - DRM_DEBUG("drm_ctxbitmap_next bit : %d\n", bit); - return bit; - } - return -1; -} - -int drm_ctxbitmap_init(drm_device_t *dev) -{ - int i; - int temp; - - dev->ctx_bitmap = (unsigned long *) drm_alloc(PAGE_SIZE, - DRM_MEM_CTXBITMAP); - if(dev->ctx_bitmap == NULL) { - return -ENOMEM; - } - memset((void *) dev->ctx_bitmap, 0, PAGE_SIZE); - for(i = 0; i < DRM_RESERVED_CONTEXTS; i++) { - temp = drm_ctxbitmap_next(dev); - DRM_DEBUG("drm_ctxbitmap_init : %d\n", temp); - } - - return 0; -} - -void drm_ctxbitmap_cleanup(drm_device_t *dev) -{ - drm_free((void *)dev->ctx_bitmap, PAGE_SIZE, - DRM_MEM_CTXBITMAP); -} - |