patch-2.4.8 linux/drivers/char/drm/init.c
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- Lines: 114
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.7/linux/drivers/char/drm/init.c
- Orig date:
Fri Jul 21 12:56:44 2000
diff -u --recursive --new-file v2.4.7/linux/drivers/char/drm/init.c linux/drivers/char/drm/init.c
@@ -1,113 +0,0 @@
-/* init.c -- Setup/Cleanup for DRM -*- linux-c -*-
- * Created: Mon Jan 4 08:58:31 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>
- *
- */
-
-#define __NO_VERSION__
-#include "drmP.h"
-
-int drm_flags = 0;
-
-/* drm_parse_option parses a single option. See description for
- drm_parse_options for details. */
-
-static void drm_parse_option(char *s)
-{
- char *c, *r;
-
- DRM_DEBUG("\"%s\"\n", s);
- if (!s || !*s) return;
- for (c = s; *c && *c != ':'; c++); /* find : or \0 */
- if (*c) r = c + 1; else r = NULL; /* remember remainder */
- *c = '\0'; /* terminate */
- if (!strcmp(s, "noctx")) {
- drm_flags |= DRM_FLAG_NOCTX;
- DRM_INFO("Server-mediated context switching OFF\n");
- return;
- }
- if (!strcmp(s, "debug")) {
- drm_flags |= DRM_FLAG_DEBUG;
- DRM_INFO("Debug messages ON\n");
- return;
- }
- DRM_ERROR("\"%s\" is not a valid option\n", s);
- return;
-}
-
-/* drm_parse_options parse the insmod "drm=" options, or the command-line
- * options passed to the kernel via LILO. The grammar of the format is as
- * follows:
- *
- * drm ::= 'drm=' option_list
- * option_list ::= option [ ';' option_list ]
- * option ::= 'device:' major
- * | 'debug'
- * | 'noctx'
- * major ::= INTEGER
- *
- * Note that 's' contains option_list without the 'drm=' part.
- *
- * device=major,minor specifies the device number used for /dev/drm
- * if major == 0 then the misc device is used
- * if major == 0 and minor == 0 then dynamic misc allocation is used
- * debug=on specifies that debugging messages will be printk'd
- * debug=trace specifies that each function call will be logged via printk
- * debug=off turns off all debugging options
- *
- */
-
-void drm_parse_options(char *s)
-{
- char *h, *t, *n;
-
- DRM_DEBUG("\"%s\"\n", s ?: "");
- if (!s || !*s) return;
-
- for (h = t = n = s; h && *h; h = n) {
- for (; *t && *t != ';'; t++); /* find ; or \0 */
- if (*t) n = t + 1; else n = NULL; /* remember next */
- *t = '\0'; /* terminate */
- drm_parse_option(h); /* parse */
- }
-}
-
-/* drm_cpu_valid returns non-zero if the DRI will run on this CPU, and 0
- * otherwise. */
-
-int drm_cpu_valid(void)
-{
-#if defined(__i386__)
- if (boot_cpu_data.x86 == 3) return 0; /* No cmpxchg on a 386 */
-#endif
-#if defined(__sparc__) && !defined(__sparc_v9__)
- if (1)
- return 0; /* No cmpxchg before v9 sparc. */
-#endif
- return 1;
-}
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