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qxl: add ring prep code for s/r 

This prepare the ring code for s/r additions, the release ring will need
reinitialising.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2013-07-04 14:58:45 +10:00
parent c9fdda2a2b
commit 1e209117db
2 changed files with 9 additions and 2 deletions
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9
drivers/gpu/drm/qxl/qxl_cmd.c
View File

@ -49,6 +49,11 @@ void qxl_ring_free(struct qxl_ring *ring)
kfree(ring);
}
void qxl_ring_init_hdr(struct qxl_ring *ring)
{
ring->ring->header.notify_on_prod = ring->n_elements;
}
struct qxl_ring *
qxl_ring_create(struct qxl_ring_header *header,
int element_size,
@ -69,7 +74,7 @@ qxl_ring_create(struct qxl_ring_header *header,
ring->prod_notify = prod_notify;
ring->push_event = push_event;
if (set_prod_notify)
header->notify_on_prod = ring->n_elements;
qxl_ring_init_hdr(ring);
spin_lock_init(&ring->lock);
return ring;
}
@ -87,7 +92,7 @@ static int qxl_check_header(struct qxl_ring *ring)
return ret;
}
static int qxl_check_idle(struct qxl_ring *ring)
int qxl_check_idle(struct qxl_ring *ring)
{
int ret;
struct qxl_ring_header *header = &(ring->ring->header);

2
drivers/gpu/drm/qxl/qxl_drv.h
View File

@ -340,6 +340,8 @@ struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header,
bool set_prod_notify,
wait_queue_head_t *push_event);
void qxl_ring_free(struct qxl_ring *ring);
void qxl_ring_init_hdr(struct qxl_ring *ring);
int qxl_check_idle(struct qxl_ring *ring);
static inline void *
qxl_fb_virtual_address(struct qxl_device *qdev, unsigned long physical)