drm: move to kref per-master structures.
This is step one towards having multiple masters sharing a drm
device in order to get fast-user-switching to work.
It splits out the information associated with the drm master
into a separate kref counted structure, and allocates this when
a master opens the device node. It also allows the current master
to abdicate (say while VT switched), and a new master to take over
the hardware.
It moves the Intel and radeon drivers to using the sarea from
within the new master structures.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drm_sarea.h b/include/drm/drm_sarea.h
index 4800373..ee5389d 100644
--- a/include/drm/drm_sarea.h
+++ b/include/drm/drm_sarea.h
@@ -36,12 +36,12 @@
/* SAREA area needs to be at least a page */
#if defined(__alpha__)
-#define SAREA_MAX 0x2000
+#define SAREA_MAX 0x2000U
#elif defined(__ia64__)
-#define SAREA_MAX 0x10000 /* 64kB */
+#define SAREA_MAX 0x10000U /* 64kB */
#else
/* Intel 830M driver needs at least 8k SAREA */
-#define SAREA_MAX 0x2000
+#define SAREA_MAX 0x2000U
#endif
/** Maximum number of drawables in the SAREA */