From e181f594a4a75790ce1d2a8e907f9fcc5e88b419 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
Date: Mon, 28 Aug 2006 09:49:09 +0200
Subject: Add a 64-bit drm unsigned type for 64-bit clean IOCTLS. Conversion
 functions in drmP.h and xf86drm.c.

---
 linux-core/drmP.h    | 19 +++++++++++--------
 linux-core/drm_ttm.c |  4 ++--
 2 files changed, 13 insertions(+), 10 deletions(-)

(limited to 'linux-core')

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 2997293b..81f08dfc 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -1359,26 +1359,29 @@ extern int drm_fence_ioctl(DRM_IOCTL_ARGS);
 extern int drm_bo_ioctl(DRM_IOCTL_ARGS);
 
 /*
- * Convenience 2*32-bit to 64-bit function
+ * Convenience drm_u64_t functions
  */
 
-static __inline__ unsigned long combine_64(uint32_t lo, uint32_t hi)
+static __inline__ unsigned long drm_ul(drm_u64_t val)
 {
-	unsigned long ret = lo;
+	unsigned long ret = val.lo;
 #if (BITS_PER_LONG == 64)
-		ret |= (hi << 32);
+		ret |= (val.hi << 32);
 #endif
 	return ret;
 }
 
-static __inline__ void split_32(unsigned long val, uint32_t *lo, uint32_t *hi)
+static __inline__ drm_u64_t drm_u64(unsigned long val)
 {
-	*lo = val & 0xFFFFFFFFUL;
+	drm_u64_t ret;
+
+	ret.lo = val & 0xFFFFFFFFUL;
 #if (BITS_PER_LONG == 64)
-	*hi = val >> 32;
+	ret.hi = val >> 32;
 #else 
-	*hi = 0;
+	ret.hi = 0;
 #endif
+	return ret;
 }
 
 
diff --git a/linux-core/drm_ttm.c b/linux-core/drm_ttm.c
index ad7b279e..e76b41fb 100644
--- a/linux-core/drm_ttm.c
+++ b/linux-core/drm_ttm.c
@@ -865,7 +865,7 @@ int drm_ttm_ioctl(DRM_IOCTL_ARGS)
 	switch(arg.op) {
 	case drm_ttm_create:
 		mutex_lock(&dev->struct_mutex);
-		size = combine_64(arg.size_lo, arg.size_hi);
+		size = drm_ul(arg.size);
 		ret = drm_ttm_object_create(dev, size, arg.flags, &entry);
 		if (ret) {
 			mutex_unlock(&dev->struct_mutex);
@@ -903,7 +903,7 @@ int drm_ttm_ioctl(DRM_IOCTL_ARGS)
 	}
 	arg.handle = entry->base.hash.key;
 	arg.user_token = entry->map_list.user_token;
-	split_32(entry->map_list.map->size, &arg.size_lo, &arg.size_hi);
+	arg.size = drm_u64(entry->map_list.map->size);
 	atomic_dec(&entry->usage);
 	mutex_unlock(&dev->struct_mutex);
 
-- 
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