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drm: Collect per-crtc vblank stuff to a struct

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drm_vblank_init() is too ugly. Make it a bit easier on the eye by
collecting all the per-crtc vblank counters, timestamps etc. to
a structure and just allocate an array of those.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ville Syrjälä
2013-10-04 14:53:36 +03:00
committed by Dave Airlie
parent bf507d90cf
commit 5380e9293b
6 changed files with 81 additions and 119 deletions
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26
include/drm/drmP.h
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@@ -1078,6 +1078,19 @@ struct drm_pending_vblank_event {
struct drm_event_vblank event;
};
struct drm_vblank_crtc {
wait_queue_head_t queue; /**< VBLANK wait queue */
struct timeval time[DRM_VBLANKTIME_RBSIZE]; /**< timestamp of current count */
atomic_t count; /**< number of VBLANK interrupts */
atomic_t refcount; /* number of users of vblank interruptsper crtc */
u32 last; /* protected by dev->vbl_lock, used */
/* for wraparound handling */
u32 last_wait; /* Last vblank seqno waited per CRTC */
unsigned int inmodeset; /* Display driver is setting mode */
bool enabled; /* so we don't call enable more than
once per disable */
};
/**
* DRM device structure. This structure represent a complete card that
* may contain multiple heads.
@@ -1153,18 +1166,11 @@ struct drm_device {
*/
bool vblank_disable_allowed;
wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
struct timeval *_vblank_time; /**< timestamp of current vblank_count (drivers must alloc right number of fields) */
/* array of size num_crtcs */
struct drm_vblank_crtc *vblank;
spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */
spinlock_t vbl_lock;
atomic_t *vblank_refcount; /* number of users of vblank interruptsper crtc */
u32 *last_vblank; /* protected by dev->vbl_lock, used */
/* for wraparound handling */
bool *vblank_enabled; /* so we don't call enable more than
once per disable */
unsigned int *vblank_inmodeset; /* Display driver is setting mode */
u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
struct timer_list vblank_disable_timer;
u32 max_vblank_count; /**< size of vblank counter register */