From 91aa32742c49db0c553b5836afd28c8ea2436014 Mon Sep 17 00:00:00 2001
From: Jon Smirl <jonsmirl@yahoo.com>
Date: Fri, 15 Oct 2004 20:36:15 +0000
Subject: Move drm_cpu_valid out of drm_init. drm_init is empty now.

---
 linux-core/drm_fops.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'linux-core/drm_fops.c')

diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index 54cebbcb..ca4f9c89 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -190,6 +190,23 @@ int drm_stub_open(struct inode *inode, struct file *filp)
 	return err;
 }
 
+/**
+ * Check whether DRI will run on this CPU.
+ *
+ * \return non-zero if the DRI will run on this CPU, or zero otherwise.
+ */
+static 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;
+}
+
 /**
  * Called whenever a process opens /dev/drm.
  *
-- 
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