From 5141da97f680235d10d74737d5444963d2080072 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Tue, 22 Apr 2003 10:13:14 +0000
Subject: Move a bunch of gamma-specific code into a gamma-specific file.
 Restore the     kooky DRM(write_string) code for gamma.

---
 linux/gamma.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'linux/gamma.h')

diff --git a/linux/gamma.h b/linux/gamma.h
index 44d8d5bc..1d4ab25d 100644
--- a/linux/gamma.h
+++ b/linux/gamma.h
@@ -145,4 +145,22 @@
 #define DRIVER_AGP_BUFFERS_MAP( dev )					\
 	((drm_gamma_private_t *)((dev)->dev_private))->buffers
 
+/* Gamma makes use of a wierd mechanism to get the DDX driver to do
+ * context switches on behalf of the 3d clients via a trip to the
+ * kernel module.  This requires read/poll functionality on the drm
+ * file descriptor not normally present:
+ */
+#define DRIVER_FOPS				\
+static struct file_operations	DRM(fops) = {	\
+	.owner   = THIS_MODULE,			\
+	.open	 = DRM(open),			\
+	.flush	 = DRM(flush),			\
+	.release = DRM(release),		\
+	.ioctl	 = DRM(ioctl),			\
+	.mmap	 = DRM(mmap),			\
+	.read	 = DRM(read),			\
+	.fasync  = DRM(fasync),			\
+	.poll	 = DRM(poll),			\
+}
+
 #endif /* __GAMMA_H__ */
-- 
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