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drm/vblank: update recently added vbl interface to be more future proof.

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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.

Reviewed-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2011-03-24 20:54:35 +10:00
parent 1783e4bf6f
commit 51eab416c9
2 changed files with 5 additions and 4 deletions
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2
drivers/gpu/drm/drm_ioctl.c
View File

@ -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:

7
include/drm/drm.h
View File

@ -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__