From 2fbd71354b13f31c6a408b6eedcefd4ee8d1d3fa Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Thu, 24 Mar 2011 20:54:35 +1000
Subject: [PATCH] drm/vblank: update recently added vbl interface to be more future proof.
This makes the interface a bit cleaner by leaving a single gap in the
vblank bit space instead of creating two gaps.
Suggestions from Michel on mailing list/irc.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/drm_ioctl.c | 2 +-
include/drm/drm.h | 7 ++++---
2 files changed, 5 insertions(+), 4 deletions(-)
@@ -280,7 +280,7 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
if (dev->driver->dumb_create)
req->value = 1;
break;
- case DRM_CAP_HIGH_CRTC:
+ case DRM_CAP_VBLANK_HIGH_CRTC:
req->value = 1;
break;
default:
@@ -463,14 +463,15 @@ struct drm_irq_busid {
enum drm_vblank_seq_type {
_DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
_DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
+ /* bits 1-6 are reserved for high crtcs */
+ _DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
_DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */
_DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
_DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
_DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
_DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking, unsupported */
};
-#define _DRM_VBLANK_HIGH_CRTC_SHIFT 16
-#define _DRM_VBLANK_HIGH_CRTC_MASK 0x001F0000
+#define _DRM_VBLANK_HIGH_CRTC_SHIFT 1
#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \
@@ -755,7 +756,7 @@ struct drm_event_vblank {
};
#define DRM_CAP_DUMB_BUFFER 0x1
-#define DRM_CAP_HIGH_CRTC 0x2
+#define DRM_CAP_VBLANK_HIGH_CRTC 0x2
/* typedef area */
#ifndef __KERNEL__
--
1.7.1