From 11f3e5e53f8fc4de90d1c289e0ba218ddfca23dc Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
Date: Thu, 25 Oct 2007 10:12:21 +0200
Subject: Buffer manager: Implement a version check IOCTL for drivers that
 don't use drmMMInit from user-space. Remove the minor check from the kernel
 code. That's really up to the driver. Bump major.

---
 libdrm/xf86drm.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'libdrm/xf86drm.c')

diff --git a/libdrm/xf86drm.c b/libdrm/xf86drm.c
index 82b77d7f..2f9d5c80 100644
--- a/libdrm/xf86drm.c
+++ b/libdrm/xf86drm.c
@@ -2855,6 +2855,30 @@ int drmMMUnlock(int fd, unsigned memType, int unlockBM)
     return (ret) ? -errno : 0;
 }
 
+int drmBOVersion(int fd, unsigned int *major,
+		 unsigned int *minor,
+		 unsigned int *patchlevel)
+{
+    struct drm_bo_version_arg arg;
+    int ret;
+
+    memset(&arg, 0, sizeof(arg));
+    ret = ioctl(fd, DRM_IOCTL_BO_VERSION, &arg);
+    if (ret)
+	return ret;
+
+    if (major)
+	*major = arg.major;
+    if (minor)
+	*minor = arg.minor;
+    if (patchlevel)
+	*patchlevel = arg.patchlevel;
+
+    return (ret) ? -errno : 0;
+}
+
+
+
 #define DRM_MAX_FDS 16
 static struct {
     char *BusID;
-- 
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