Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 128 insertions, 0 deletions

diff --git a/nx-X11/extras/drm/linux/drm_init.h b/nx-X11/extras/drm/linux/drm_init.h
new file mode 100644
index 000000000..ae6ecbf98
--- /dev/null
+++ b/nx-X11/extras/drm/linux/drm_init.h
@@ -0,0 +1,128 @@
+/**
+ * \file drm_init.h 
+ * Setup/Cleanup for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+
+/*
+ * Created: Mon Jan  4 08:58:31 1999 by faith@valinux.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
+ * 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 "drmP.h"
+
+/** Debug flags.  Set by parse_option(). */
+#if 0
+int DRM(flags) = DRM_FLAG_DEBUG;
+#else
+int DRM(flags) = 0;
+#endif
+
+/**
+ * Parse a single option.
+ *
+ * \param s option string.
+ *
+ * \sa See 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, "debug")) {
+		DRM(flags) |= DRM_FLAG_DEBUG;
+		DRM_INFO("Debug messages ON\n");
+		return;
+	}
+	DRM_ERROR("\"%s\" is not a valid option\n", s);
+	return;
+}
+
+/**
+ * Parse the insmod "drm_opts=" options, or the command-line
+ * options passed to the kernel via LILO.  
+ *
+ * \param s contains option_list without the 'drm_opts=' part.
+ *
+ * The grammar of the format is as
+ * follows:
+ *
+ * \code
+ * drm		::= 'drm_opts=' option_list
+ * option_list	::= option [ ';' option_list ]
+ * option	::= 'device:' major
+ *		|   'debug'
+ *		|   'noctx'
+ * major	::= INTEGER
+ * \endcode
+ *
+ * - 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
+ *
+ * \todo Actually only the \e presence of the 'debug' option is currently
+ * checked.
+ */
+
+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 */
+	}
+}
+
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero 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__)
+	return 0; /* No cmpxchg before v9 sparc. */
+#endif
+	return 1;
+}