drm/i915: Move a few more utility macros to i915_utils.h

Now that we have split out a header file for simple macros (that maybe
we can promote into a core header), move a few macros across from
i915_drv.h

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170105164148.26875-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

drivers/gpu/drm/i915/i915_drv.h

@@ -4026,24 +4026,4 @@ int remap_io_mapping(struct vm_area_struct *vma,
 		     unsigned long addr, unsigned long pfn, unsigned long size,
 		     struct io_mapping *iomap);
 
-#define ptr_mask_bits(ptr) ({						\
-	unsigned long __v = (unsigned long)(ptr);			\
-	(typeof(ptr))(__v & PAGE_MASK);					\
-})
-
-#define ptr_unpack_bits(ptr, bits) ({					\
-	unsigned long __v = (unsigned long)(ptr);			\
-	(bits) = __v & ~PAGE_MASK;					\
-	(typeof(ptr))(__v & PAGE_MASK);					\
-})
-
-#define ptr_pack_bits(ptr, bits)					\
-	((typeof(ptr))((unsigned long)(ptr) | (bits)))
-
-#define fetch_and_zero(ptr) ({						\
-	typeof(*ptr) __T = *(ptr);					\
-	*(ptr) = (typeof(*ptr))0;					\
-	__T;								\
-})
-
 #endif

drivers/gpu/drm/i915/i915_utils.h

@@ -41,4 +41,24 @@
 #define overflows_type(x, T) \
 	(sizeof(x) > sizeof(T) && (x) >> (sizeof(T) * BITS_PER_BYTE))
 
+#define ptr_mask_bits(ptr) ({						\
+	unsigned long __v = (unsigned long)(ptr);			\
+	(typeof(ptr))(__v & PAGE_MASK);					\
+})
+
+#define ptr_unpack_bits(ptr, bits) ({					\
+	unsigned long __v = (unsigned long)(ptr);			\
+	(bits) = __v & ~PAGE_MASK;					\
+	(typeof(ptr))(__v & PAGE_MASK);					\
+})
+
+#define ptr_pack_bits(ptr, bits)					\
+	((typeof(ptr))((unsigned long)(ptr) | (bits)))
+
+#define fetch_and_zero(ptr) ({						\
+	typeof(*ptr) __T = *(ptr);					\
+	*(ptr) = (typeof(*ptr))0;					\
+	__T;								\
+})
+
 #endif /* !__I915_UTILS_H */